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  • Single Channel Ground and Airborne Radio System/Definition
    ...ery high frequency (VHF)]] part of the electromagnetic spectrum; it uses [[frequency agility]] and is otherwise designed to operate in an [[electronic warfare]]
    313 bytes (44 words) - 22:45, 11 September 2009
  • TALL KING/Definition
    ...-range early warning [[radar]], operating in the [[ITU frequency bands|VHF frequency range]]
    141 bytes (18 words) - 21:58, 31 October 2008
  • Wavelength/Related Articles
    {{r|Frequency}} {{r|ITU frequency bands}}
    334 bytes (41 words) - 16:03, 8 March 2010
  • NAVTEX/Definition
    ...itime Distress and Safety System]] (GMDSS), a [[ITU frequency bands|medium frequency]] radio broadcast service for marine-oriented weather information
    223 bytes (27 words) - 09:33, 24 August 2010
  • Frequency agility
    ...the frequencies available for use, and the schedule or events that cause a frequency shift. ...as cellular radio that shifts to find a frequency that is not busy, in a [[frequency division multiple access]] network.
    1 KB (197 words) - 05:49, 8 April 2024
  • ITU frequency bands
    ...radar designations used widely in civilian practice, and the [[EU-NATO-US frequency bands]] for a nomenclature that works well in fine-grained radar band discu ! Frequency range
    2 KB (232 words) - 10:54, 19 September 2009
  • Radio/Related Articles
    {{r|Frequency modulation}} {{r|Radio-Frequency Identification}}
    783 bytes (98 words) - 18:55, 27 February 2014
  • Superheterodyne
    ...in radio communications, converts information at a low frequency to a high frequency suitable for transmission. On reception, it reverses the process. Typically ...t frequency'' from the local oscillator, and the known unmodulated carrier frequency.
    974 bytes (143 words) - 16:23, 30 March 2024
  • Frequency/Related Articles
    {{r|ITU frequency bands}} {{r|IEEE frequency bands}}
    362 bytes (44 words) - 12:21, 25 June 2012
  • GRC-193/Definition
    ...vehicle-mounted medium to high power (100-400W) [[ITU Frequency Bands|High Frequency (HF)]] radio transceiver; uses [[TSEC/KY-99]] and [[TSEC/KG-84]] for secure
    267 bytes (37 words) - 00:03, 28 July 2010
  • Modulation/Related Articles
    {{r|Frequency modulation}} {{r|Beat frequency}}
    291 bytes (32 words) - 08:05, 20 May 2008
  • FPS-49/Definition
    ...with a large parabolic antenna, operating in the [[ITU Frequency Bands|VHF frequency spectrum]], which was the initial tracking component of the [[Ballistic Mis
    294 bytes (40 words) - 00:54, 23 July 2010
  • Radio
    ...ncy of the carrier wave is usually associated with a [[ITU frequency bands|frequency band]]. The information may be [[voice]], [[data]], [[imagery]] or instrume ==Radio frequency aspects==
    1 KB (183 words) - 12:46, 30 March 2024
  • IEEE frequency bands/Related Articles
    Auto-populated based on [[Special:WhatLinksHere/IEEE frequency bands]]. Needs checking by a human. {{r|EU-NATO-US frequency bands}}
    658 bytes (89 words) - 17:21, 11 January 2010
  • Cauchy moment/Definition
    ...the frequency-dependent polarizability α(ω) in even powers of frequency ω.
    221 bytes (32 words) - 09:21, 27 July 2008
  • Superheterodyne/Definition
    ...is mixed with a locally generated signal and converted to an intermediate frequency in order to facilitate amplification and the rejection of unwanted signals.
    261 bytes (39 words) - 05:26, 4 September 2009
  • Frequency modulation
    ...tic signal of constant frequency -- the "carrier wave" -- by changing the frequency in proportion to the instantaneous strength of the information signal to be
    546 bytes (86 words) - 22:47, 21 May 2008
  • Amplitude modulation/Related Articles
    {{r|Beat frequency}} {{r|Beat frequency oscillator}}
    280 bytes (34 words) - 08:27, 20 May 2008
  • Wavelength
    ...;) can be determined from the wave speed ( '''''c''''' ) and [[frequency]] ( '''''f''''' ): ...]]). Rounding to convenient values for [[radio]] waves, 300 divided by the frequency in megahertz (Mhz) gives the wavelength in [[meter]]s:
    1 KB (207 words) - 19:41, 21 July 2020
  • Frequencies
    #REDIRECT [[Frequency]]
    23 bytes (2 words) - 17:08, 7 April 2010
  • MILSTAR
    ...tional, but they will gradually be replaced by the Advanced Extremely High Frequency (AEHF) family, which at one time was designated MILSTAR III. MILSTAR satellites were the first to use [[ITU Frequency Bands|Extremely High Frequency (EHF)]] communications. They are crosslinked in space with 10 Mbps digital
    741 bytes (110 words) - 10:20, 8 April 2024
  • Frequency Modulation
    #Redirect [[Frequency modulation]]
    34 bytes (3 words) - 08:57, 22 May 2008
  • IEEE Frequency bands
    #Redirect [[IEEE frequency bands]]
    34 bytes (4 words) - 06:39, 21 May 2008
  • IEEE Frequency Bands
    #Redirect [[IEEE frequency bands]]
    34 bytes (4 words) - 06:40, 21 May 2008
  • Radio-Frequency Identification
    #REDIRECT [[Radio Frequency Identification]]
    44 bytes (4 words) - 19:07, 2 February 2009
  • ITU Frequency Bands
    #REDIRECT [[ITU frequency bands]]
    33 bytes (4 words) - 06:39, 21 May 2008
  • High frequency
    #REDIRECT [[ITU frequency bands]]
    33 bytes (4 words) - 06:50, 19 November 2011
  • RFID
    #REDIRECT [[Radio Frequency Identification]]
    44 bytes (4 words) - 16:02, 3 February 2009
  • High-frequency
    #REDIRECT [[ITU frequency bands]]
    33 bytes (4 words) - 06:50, 19 November 2011
  • ITU Frequency bands
    #Redirect [[ITU frequency bands]]
    33 bytes (4 words) - 06:38, 21 May 2008
  • Talk:Radio-Frequency Identification
    #REDIRECT [[Talk:Radio Frequency Identification]]
    49 bytes (5 words) - 19:07, 2 February 2009
  • Talk:RFID
    #REDIRECT [[Talk:Radio Frequency Identification]]
    49 bytes (5 words) - 16:03, 3 February 2009
  • Radar warning receiver/Related Articles
    {{r|IEEE frequency bands}} {{r|ITU frequency bands}}
    413 bytes (58 words) - 04:56, 14 March 2024
  • Diarrhea/Definition
    Abnormal frequency and liquidity of faecal discharges.
    91 bytes (10 words) - 08:04, 7 September 2009
  • MPQ-65
    Its operating frequency is in the [[EU-NATO-US frequency bands|NATO G Band]], between 4 and 6 GHz. The antenna is a [[passive electr
    462 bytes (67 words) - 17:56, 1 April 2024
  • Hertz (unit)/Related Articles
    {{r|Frequency}} {{r|Frequency modulation}}
    463 bytes (55 words) - 07:41, 16 April 2010
  • High frequency/Definition
    A part of the radio frequency spectrum between 3 and 30 Megahertz
    65 bytes (10 words) - 13:23, 11 December 2010
  • Frequency
    ...repetitions (cycles) in a unit of [[time]]. In the [[SI]] system of units, frequency is measured in [[Hertz]] ('''Hz'''), the number of repetitions in one [[sec Frequency ( '''''f''''' ) is the reciprocal of the period ( '''''T
    2 KB (257 words) - 20:29, 21 July 2020
  • Doppler effect/Definition
    <noinclude>{{Subpages}}</noinclude> Frequency changes of a wave due to relative motion between source and observer.
    115 bytes (16 words) - 07:50, 22 May 2011
  • User:John R. Brews/Music
    ...png|Audible difference in frequency &Delta;ƒ/ƒ at two sound levels ''vs.'' frequency ƒ.
    879 bytes (131 words) - 04:07, 22 November 2023
  • Talk:Radio Frequency Identification
    ...can use the MOVE command, at the top of the screen, to move RFID to Radio frequency identification, and then create an enty for RFID that contains the line <nowiki>#REDIRECT [[Radio frequency identification]]</nowiki>
    2 KB (339 words) - 19:07, 2 February 2009
  • Probe/Definition
    A simple test device to detect radio frequency oscillation in an electronic circuit.
    121 bytes (16 words) - 18:41, 30 September 2009
  • SSQ-57/Definition
    <noinclude>{{Subpages}}</noinclude>U.S. Navy family of low-frequency analysis and recording (LOFAR) passive [[sonobuoy]]s
    121 bytes (16 words) - 00:04, 1 February 2011
  • Frequency modulation/Definition
    Technique for imposing information onto a electromagnetic signal of constant frequency -- the "carrier wave".
    145 bytes (18 words) - 13:09, 11 July 2009
  • Squad tactical radio
    ...typically operate these radios using [[frequency modulation]] in the [[ITU frequency bands|high HF to low VHF frequencies]], typically 30-75 MHz.
    620 bytes (93 words) - 10:20, 8 April 2024
  • Defense Satellite Communications System
    ...sent [[MILSTAR]] system, or their replacement, the Advanced Extremely High Frequency (AEHF) satellites. AEHF will provide substantially more bandwidt. ...eosynchronous orbit (GEO)]], and have six [[ITU frequency bands|Super High Frequency (SHF)]] communications relay channel [[transponder]]s, plus a seventh chann
    951 bytes (130 words) - 10:20, 8 April 2024
  • SSQ-53/Definition
    Directional frequency analysis and recording (DIFAR) passive [[sonobuoy]] family built for the [[
    153 bytes (18 words) - 01:18, 1 February 2011
  • Cold probe (NMR)/Definition
    A radio frequency exitation and receiving probe whose electronics are cooled to 15-25 degrees
    154 bytes (20 words) - 12:21, 8 November 2008
  • Vibrational spectrum
    ==Fundamental frequency== ...l vibration frequencies are typically integer multiples of the fundamental frequency. In more complex systems, such as the circular membranes used for drum head
    2 KB (288 words) - 13:04, 19 February 2022
  • Pitch (music)/Definition
    Perceived frequency of a sound or [[Tone (music)|musical tone]].
    100 bytes (13 words) - 17:46, 30 June 2012
  • Template:Infobox Named passenger train
    | frequency =
    380 bytes (18 words) - 16:02, 14 May 2023
  • Template:Infobox Named passenger trains
    | frequency =
    381 bytes (18 words) - 16:03, 14 May 2023
  • Template:Infobox Santa Fe named train
    | frequency =
    379 bytes (19 words) - 16:04, 14 May 2023
  • Megahertz/Definition
    Frequency measurement - things that [[oscillate]] more than one million times a secon
    155 bytes (21 words) - 20:39, 5 January 2024
  • RF electronics
    '''RF (radio frequency) electronics''' have two subsystems: the transmitter and the receiver. ...MR experiments require simultaneous application of RF pulses of different frequency. Earlier MR systems used waveform generators with subsequent phase modulati
    1 KB (187 words) - 16:18, 3 April 2024
  • ITU frequency bands/Related Articles
    Auto-populated based on [[Special:WhatLinksHere/ITU frequency bands]]. Needs checking by a human. {{r|EU-NATO-US frequency bands}}
    1 KB (187 words) - 09:11, 22 April 2024
  • BIG BACK radar/Definition
    Soviet [[EU-NATO-US frequency bands|E-band]] early warning radar, used with [[SA-5 GAMMON]] [[surface-to-
    154 bytes (17 words) - 19:34, 2 August 2008
  • Hertz (unit)/Definition
    The international ([[SI]]) unit of [[frequency]], with units of inverse [[second]]s, commonly called cycles per seocond.
    156 bytes (20 words) - 04:14, 30 November 2009
  • Hardy-Weinberg principle/Definition
    States that [[gene frequency]] remains constant across generations (no [[genetic drift]]) unless a force
    180 bytes (23 words) - 08:46, 13 August 2010
  • Satellite communications
    ==Operating frequency tradeoffs== Satellites operating in the [[ITU Frequency Bands|Ultra-High Frequency (UHF)]] offer the advantage of simple receivers and antennas, with plausibl
    2 KB (255 words) - 10:05, 10 February 2023
  • Operation Rafter
    ...t frequency'' from the local oscillator, and the known unmodulated carrier frequency. ...ubsequent stages of the receiver are pretuned, such as 455 kHz in a medium-frequency AM broadcast radio.
    2 KB (318 words) - 16:22, 30 March 2024
  • Modulation
    ...r wave of the basic waveform. While the term is most often used with radio frequency carrier waves, it can apply to sound waves as well, such as when a basic st ...dulation:Changing the frequency (i.e., the time between peaks of the basic frequency)
    2 KB (283 words) - 16:23, 30 March 2024
  • Roughness (acoustics)/Definition
    In a sound, the overall deviation of the frequency ratios from those of an [[overtone]] series.
    131 bytes (19 words) - 07:11, 7 April 2010
  • 1-f noise/Definition
    Electromagnetic noise proportional to f<sup>-n</sup>, where f = frequency and n={0,1,2).
    124 bytes (16 words) - 15:26, 13 July 2008
  • Density (number theory)/Definition
    The asymptotic frequency of a subset of the natural numbers.
    97 bytes (13 words) - 17:36, 24 August 2009
  • Modem
    ...frequency bands|high frequency (HF)]] or [[ITU frequency bands| very high frequency (VHF)]].
    1 KB (230 words) - 20:22, 27 August 2008
  • Normal distribution/Definition
    a symmetrical bell-shaped probability distribution representing the frequency of random variations of a quantity from its mean.
    163 bytes (20 words) - 12:25, 1 July 2009
  • Sound (acoustics)/Definition
    The range of [[frequency|frequencies]] that can be [[hearing|heard]] by a [[life|living]] [[organism
    174 bytes (23 words) - 02:43, 15 February 2012
  • Network medium/Definition
    A physical medium, including a designated [[frequency]] and physical scope, of the [[electromagnetic spectrum]], over which multi
    192 bytes (23 words) - 19:32, 31 July 2008
  • Spectroscopy/Definition
    The study of a system or object by means of selected [[frequency band]]s in the [[electromagnetic spectrum]].
    145 bytes (21 words) - 10:29, 31 July 2009
  • Pitch (music)/External Links
    ...fs/bain/atmi02/tuning/default.html |title=12 Tone Equal Temperament (12TET)Frequency Table based on A4 = 440 Hz |author=Reginald Bain |year=2002 |accessdate=201
    224 bytes (33 words) - 21:42, 27 June 2012
  • Nuclear Overhauser effect/Definition
    ...in intensity of a signal when irradiation is carried out at the resonance frequency of a spatially proximal nucleus.
    160 bytes (23 words) - 04:01, 28 January 2009
  • SQUARE PAIR radar/Definition
    ...[[SA-5 GAMMON]] [[surface-to-air missile]], operating in the [[EU-NATO-US frequency bands|H-band]]
    174 bytes (20 words) - 19:42, 2 August 2008
  • PRC-25/Related Articles
    {{r|Frequency modulation}} {{r|Frequency synthesizer}}
    327 bytes (47 words) - 03:42, 3 March 2009
  • Squad tactical radio/Related Articles
    {{r|Frequency modulation}} {{r|Frequency agility}}
    475 bytes (68 words) - 03:00, 3 March 2009
  • FM (disambiguation)
    {{r|Frequency modulation|FM}}
    63 bytes (8 words) - 08:46, 28 February 2010
  • SSQ-57
    ...ber of allies, '''AN/[[SSQ-57]]''' [[sonobuoy]]s are passive acoustic, low-frequency listening devices dropped from aircraft and helicopters. In [[antisubmarin ...ibrated low-frequency analysis and recording (LOFAR) sonobuoy. It is a low-frequency version of the earlier AN/SSQ-41 passive sonobuoy, no longer in service. On
    1 KB (169 words) - 17:56, 1 April 2024
  • Single Channel Ground and Airborne Radio System
    ...r the U.S. Army. The family operates in the ITU frequency bands|very high frequency (VHF) part of the electromagnetic spectrum, which, while requiring a longer ...e manner, direction finding systems may not be able to follow the changing frequency long enough to get an accurate position.
    3 KB (476 words) - 16:23, 30 March 2024
  • Fixed point/Bibliography
    ...hman. Measuring ultrashort laser pulses in the time-frequency domain using frequency-resolved optical gating. Rev. Sci. Instrum. 68, 3277 (1997); DOI:10.1063/1.
    843 bytes (106 words) - 23:11, 31 January 2009
  • Hertz (unit)
    The '''hertz''' is the [[SI]] unit of frequency, and has units of inverse [[second]]s. The hertz is used only for periodic ...sting uses frequencies from 87.5 MHz to 107.7 MHz. Visible [[light]] has a frequency of about 400 THz to 750 THz.
    2 KB (233 words) - 04:14, 30 November 2009
  • Wavelength/Definition
    For a repeating phenomenon such as a [[radio]] signal with a given [[frequency]], the wavelength is the length, in meters, of a single repetition
    181 bytes (27 words) - 12:58, 28 September 2008
  • Beat (acoustics)/Definition
    An [[interference]] between two [[sound]]s of slightly different [[frequency|frequencies]], perceived as periodic variations in volume whose rate is the
    233 bytes (29 words) - 05:45, 11 October 2009
  • IEEE frequency bands
    ...(IEEE) has defined as standard IEEE Standard 521-1984, a system of '''IEEE frequency bands''' for electromagnetic frequencies used for [[radio]] and [[radar]]. | chapter = Frequency letter bands
    2 KB (267 words) - 20:38, 20 November 2008
  • Frequency agility/Definition
    ...uencies, possibly under the control of pseudo-random, network-synchronized frequency selection software
    249 bytes (29 words) - 23:46, 17 July 2008
  • TSQ-190
    ...rom 4.8 to 512 kbps per channel using the C, Ku, or X IEEE frequency bands|frequency bands, which are far too low for large volume data from such sensors as ima
    892 bytes (129 words) - 18:08, 1 April 2024
  • Planck's constant/Definition
    The constant of proportionality relating the energy of a photon to the frequency of that photon, named sfter Max Karl Ernst Ludwig Planck.
    175 bytes (26 words) - 04:40, 4 September 2009
  • User:Sam Nazari/Sandbox
    ...quist Sampling Theorem''' is a key result which determines the fundamental frequency that a bandlimited continuous time signal must be [[sampled]] at in order t
    233 bytes (33 words) - 04:40, 22 November 2023
  • Low probability of intercept
    *[[Frequency agility]]; varying one or more transmitted signal frequencies ...spread spectrum can be combined with rapidly changing [[frequency agility|frequency changing within the band]], not putting equal power in all frequencies at a
    2 KB (260 words) - 10:44, 8 April 2024
  • NAVTEX
    ...asting system, transmitting at 518 kHz in the [[ITU frequency bands|medium frequency band]], for textual [[weather information distribution]]. It is intended to ...ice, for inland waters. Other services include safety information in other frequency bands, as well as radiofacsimile weather information.<ref>{{citation |url=h
    1 KB (200 words) - 12:47, 15 January 2024
  • Pole splitting/Definition
    <noinclude>{{Subpages}}</noinclude>A form of [[frequency compensation]] used in an [[electronic amplifier]] to increase the stabilit
    216 bytes (31 words) - 09:09, 5 June 2011
  • Doppler ultrasonography/Definition
    ...rasound to detect movement of blood cells by the analysis of the change in frequency of the returning echoes.
    186 bytes (28 words) - 08:16, 7 September 2009
  • Johann Christian Andreas Doppler/Definition
    ...physicist, who in 1842 discovered the 'Doppler effect', where the observed frequency of a wave depends on the velocity of the source relative to the observer.
    257 bytes (34 words) - 18:53, 13 September 2009
  • SPS-49
    ...radome of the SPS-64|AN-SPS-64 navigational radar. It operates in the IEEE frequency bands|IEEE L-band/NATO C-band, and is mounted higher than the SPY-1|AN/SPY- ...(ECCM) capabilities including frequency agility, variable pulse repetition frequency and sidelobe cancellation.
    1 KB (193 words) - 16:23, 30 March 2024
  • Carrier wave
    ...]], and [[television]], the '''carrier wave''', also called the '''carrier frequency''', is the basic information-free [[electromagnetic wave]] onto which infor
    229 bytes (26 words) - 08:40, 11 December 2009
  • Forward air controller
    ...(VHF) while air-to-ground and air-to-air is ITU Frequency Bands|ultra-high frequency (UHF). Communications security devices now may be separate; reduction in th
    2 KB (278 words) - 18:47, 3 April 2024
  • Redshift/Definition
    ...ength of electromagnetic radiation or an apparent decrease in the observed frequency.
    229 bytes (32 words) - 00:01, 13 April 2011
  • PRC-117/Definition
    ...ctical [[software-defined radio]] family that operates in the full VHF/UHF frequency range, with an internal encryption unit, and compatibility with [[SINCGARS]
    295 bytes (42 words) - 00:41, 6 February 2009
  • Polyuria
    ...ia''' is "urination of a large volume of urine with an increase in urinary frequency, commonly seen in [[diabetes]] (diabetes mellitus; [[diabetes insipidus]]).
    239 bytes (30 words) - 01:35, 7 October 2013
  • Electromagnetic radiation/Related Articles
    {{r|Frequency}} {{r|IEEE frequency bands}}
    2 KB (308 words) - 09:08, 19 April 2024
  • Amplitude modulation
    :#Carrier frequency :#Information frequency
    2 KB (270 words) - 12:56, 22 September 2020
  • SIDE NET radar/Definition
    Soviet [[EU-NATO-US frequency bands|D or E-band]] nodding height finding radar used with the [[S-75 Dvina
    215 bytes (29 words) - 06:56, 4 April 2024
  • Silicon carbide/Definition
    ...s potential as a semiconductor for applications requiring high power, high frequency or a large degree of chemical inertness.
    292 bytes (44 words) - 15:07, 8 January 2009
  • User:Ryan Cooley/COFDM
    Coded, Orthogonal, Frequency Division, Multiplexing ...ignal can take up as much time as it needs, but is restricted to a smaller frequency range to avoid interference with other signals.
    3 KB (463 words) - 04:39, 22 November 2023
  • IEEE 802.15.4/Definition
    ...re defined to operate in a variety of geographic regions with a variety of frequency bands.
    227 bytes (35 words) - 10:38, 25 April 2023
  • International Concert Pitch/Definition
    ...es}}</noinclude>A standardization of [[Pitch (music)|pitch]] that sets the frequency of a simple [[Tone (music)|tone]] at pitch ''A''4 (the ''A'' above middle '
    198 bytes (30 words) - 09:18, 5 July 2012
  • JTRS waveform/Definition
    ...form]] includes the [[software-defined radio]] not only to emulate a given frequency range and modulation, but encryption, medium-sharing technique for multiple
    307 bytes (39 words) - 19:47, 20 June 2009
  • PRC-25
    Its main successor is the [[PRC-119|AN/PRC-119]], which added [[SINCGARS]] frequency agility; the PRC-119 will be replaced by new [[software-defined radio]]s, i ...ting in the [[ITU frequency bands|high HF/low VHF frequency band]] using [[frequency modulation]] (FM), it had a maximum range, using full power and its standar
    3 KB (450 words) - 15:37, 8 April 2024
  • Spectrometry
    ...oscopy]] &mdash; the analysis of absolute and/or relative contributions of frequency components to the spectrum of a given sample or object.
    335 bytes (45 words) - 20:47, 12 April 2011
  • PRC-10
    ...be radio with preselected frequencies in the 38.0 to 54.9 MHz range, using frequency modulation without any electronic protection. ...save for operating frequencies, which went into the upper end of the High Frequency (HF) band for the -8 and -9.
    3 KB (420 words) - 18:08, 1 April 2024
  • User:Michael Silverman/Radio Frequency Identification (RFID)
    ..., and governmental applications due to its low cost and flexibility. Radio frequency (RF) waves are used for communication between the transponder, or tag, and ...decode the identification number of the tag. As the data is encoded in the frequency spectrum, the unique ID created is called a spectral signature.
    5 KB (737 words) - 04:24, 22 November 2023
  • User:Michael Silverman/RFID
    ..., and governmental applications due to its low cost and flexibility. Radio frequency (RF) waves are used for communication between the transponder, or tag, and ...decode the identification number of the tag. As the data is encoded in the frequency spectrum, the unique ID created is called a spectral signature.
    5 KB (737 words) - 04:24, 22 November 2023
  • Vacuum (classical)/Definition
    ...se ideal properties include: independence from field strengths, direction, frequency, or polarization, and from temperature.
    357 bytes (48 words) - 15:48, 27 March 2011
  • Maritime and Coastguard Agency
    ..., and, when going more than a specified distance offshore, carrying [[ITU frequency bands|MF/SSB]] radio, [[INMARSAT]] satellite communications, and [[NAVTEX]]
    1 KB (167 words) - 23:30, 12 August 2008
  • Nuclear Overhauser effect
    ...s changes in the intensity of a signal at one frequency when the resonance frequency of a different nucleus is irradiated, due to dipole-dipole interactions bet ...<math><S_z></math> is the magnetization of spin S after irradiation at the frequency of spin I,
    3 KB (493 words) - 19:42, 28 March 2011
  • Spectral resolution/Definition
    In [[multispectral scanning]], the number of discrete frequency (or equivalent) bands recorded in an individual pixel. Remember that relati
    393 bytes (54 words) - 14:52, 8 June 2010
  • Telemetry
    ...chniques to put a continuously varying instrument reading onto a [[radio]] frequency received by an earth station. Extremely complex analog tape recorders, wit ...pollo]], [[IEEE frequency bands|S-band]] was common, rather than the [[ITU frequency bands|VHF]] of the Second World War and through the fifties.
    2 KB (324 words) - 16:37, 22 August 2009
  • Tension headache/Definition
    ...ty in the [[head]]; [[scalp]]; or [[neck]]. The subtypes are classified by frequency and severity of symptoms. There is no clear cause even though it has been a
    420 bytes (58 words) - 13:17, 22 August 2010
  • Amateur radio
    ...eception of radio signals made through certain assigned bands in the radio frequency spectrum by private individuals for non-commercial and two-way purposes. Mi ...[Slow Scan Television]] is a popular way of transmitting images over lower frequency bands, in higher bands (ATV) [[Amateur Television]] is becoming a more soph
    2 KB (295 words) - 20:53, 24 September 2007
  • SPS-64
    ...nclude [[EU-NATO-US frequency bands|E/F and I/J military bands]] or [[IEEE frequency bands|IEEE S or X bands]], with power levels from 10 to 60 kilowatts.
    2 KB (252 words) - 15:42, 8 April 2024
  • Low probability of intercept/Related Articles
    {{r|Frequency agility}}
    208 bytes (25 words) - 23:56, 13 August 2009
  • Radio Frequency Identification/Related Articles
    {{r|IEEE frequency bands}}
    167 bytes (19 words) - 21:11, 8 March 2011
  • Bode plot/Definition
    ...ransfer function]] of a linear, time-invariant system plotted with a log-[[frequency]] axis. There are two plots: the Bode magnitude plot and the Bode phase plo
    309 bytes (48 words) - 20:30, 3 June 2011
  • Talk:Fortran
    ...follows an IF statement, and expresses the programmer's expectation of the frequency with which each branch will be taken. The compiler would use this informati ...360-75 of the Triangle Research Center) in 1969. This was in Fortran 66. "Frequency" had gone from the language, PRAGMA was still present in the CDC dialect, b
    2 KB (354 words) - 08:25, 4 August 2009
  • MIDI (Musical Instrument Digital Interface)/Definition
    ...number 69, and adjacent notes tuned according to equal temperament in the frequency ratio 2<sup>1/12</sup>. Various codes allow selection of [[timbre]] and of
    361 bytes (56 words) - 10:19, 27 June 2012
  • Electromagnetic spectrum
    ...ectromagnetic radiation can be described in terms of its [[Energy]] (E), [[frequency]] (f), [[wavenumber]] (v'), or [[wavelength]] (<math>\lambda</math>). These ...e]], there may be difficult tradeoffs between letting an enemy use a radio frequency for his own purposes while one's own side is gaining [[signals intelligence
    3 KB (372 words) - 10:35, 4 April 2024
  • Miller effect/Bibliography
    |chapter=Chapter 7: Frequency response of integrated circuits
    448 bytes (71 words) - 14:16, 24 May 2011
  • Enhanced Position Location Reporting System
    ..., [[frequency agility|frequency-hopping]] [[ITU frequency bands|ultra-high frequency (UHF)]] waveform. Army Data Distribution System is also compatible with [[
    2 KB (333 words) - 10:20, 8 April 2024
  • HAVE QUICK II
    ...hysically smaller than the equivalent in the ITU frequency bands|very high frequency (VHF) spectrum. ...e manner, direction finding systems may not be able to follow the changing frequency long enough to get an accurate position.
    4 KB (694 words) - 16:22, 30 March 2024
  • Tension-type headache/Definition
    ...ty in the [[head]]; [[scalp]]; or [[neck]]. The subtypes are classified by frequency and severity of symptoms. There is no clear cause even though it has been a
    511 bytes (67 words) - 14:54, 13 October 2010
  • Case-control studies/Definition
    ...examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group.<noinclude>{{DefMeSH}}</noinclude>
    393 bytes (57 words) - 17:55, 14 May 2010
  • Doppler ultrasonography
    ...onography''' is "[[ultrasonography]] applying the [[Doppler effect]], with frequency-shifted ultrasound reflections produced by moving targets (usually red bloo ...que is the ability to estimate the velocity of flow from the Doppler shift frequency."<ref>{{MeSH|Duplex Doppler ultrasonography}}</ref>
    2 KB (227 words) - 15:23, 12 April 2011
  • Vocal cords/Related Articles
    {{r|Fundamental frequency}}
    400 bytes (50 words) - 07:40, 10 November 2010
  • Random number generator/Related Articles
    {{r|Frequency agility}}
    404 bytes (52 words) - 21:37, 27 November 2010
  • Pitch (disambiguation)
    {{rpl|Frequency}}
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  • Spread spectrum
    ...uency" is used as an example of a means of creating multiple channels, but frequency division certainly is not the only method. At a minimum, alternatives inclu ...ould still take some effort to find the channels that correlate well. When frequency agility is used, however, the true and false channels frequently change, ac
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  • Radio Frequency Identification
    '''Radio Frequency Identification (RFID)''' systems have recently garnered interest in the fie RFID systems consist of a Radio Frequency (RF) tag reader, typically consisting of a transmitter/receiver module conn
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  • Band (disambiguation)
    {{r|Frequency band}} in [[signal theory]]
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  • Bulk encryption
    ...secure the transmission channel more than the information on it, such as [[frequency agility]], [[spread spectrum]], or both.
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  • Beat (acoustics)
    ...t''' is an [[interference]] between two [[sound]]s of slightly different [[frequency|frequencies]], perceived as periodic variations in volume whose rate is the ...hear two sounds, more or less harmonic. When the two strings have the same frequency, of course one sound will be heard; but ''just before'' there will be a str
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  • Second (physics)/Related Articles
    {{r|Frequency}}
    493 bytes (65 words) - 09:44, 1 December 2010
  • Sound (acoustics)
    '''Sound''' is the range of [[frequency|frequencies]] that can be [[hearing|heard]] by a [[life|living]] [[organism ...of a pond as viewed from the side. A wave can be measured in terms of both frequency and [[amplitude]]. The amplitude, or maximum departure from the average or
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  • PRC-9/Definition
    ...io of the [[U.S. Army]] in the [[Korean War]], differing only in operating frequency from the AN/PRC-10 and AN/PRC-8. All were backpack [[vacuum tube]] radios w
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  • Template:Frequency/Metadata
    | pagename = frequency | abc = frequency
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  • Beat (acoustics)/Related Articles
    {{r|Frequency}}
    532 bytes (70 words) - 07:07, 11 October 2009
  • Template:Frequency modulation/Metadata
    | pagename = Frequency modulation | abc = Frequency modulation
    2 KB (228 words) - 22:48, 21 May 2008
  • User:Abtin Forouzandeh
    ...evolutionary algorithms and their applicability to solve problems in radio frequency applications, such as multiple tuner bandwidth allocation.
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  • Template:Radio Frequency Identification/Metadata
    | pagename = Radio Frequency Identification | abc = Radio Frequency Identification
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  • Wavenumber
    ...as a wavenumber of 20,000 cm<sup>-1</sup> or 20&nbsp;kK. Photon energy and frequency are proportional to wavenumber: 10&nbsp;kK corresponds to 1.24 eV. The wavevector(<math>k</math>), wavelength (<math>\lambda</math>), and frequency (<math>f</math>) are related:
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  • Template:IEEE frequency bands/Metadata
    | pagename = IEEE frequency bands | abc = Frequency bands, IEEE
    2 KB (231 words) - 22:04, 20 May 2008
  • Template:ITU frequency bands/Metadata
    | pagename = ITU frequency bands | abc = Frequency bands, ITU
    2 KB (231 words) - 22:11, 20 May 2008
  • Template:Frequency agility/Metadata
    | pagename = Frequency agility | abc = Frequency agility
    2 KB (233 words) - 15:23, 27 February 2010
  • Multiplexing/Related Articles
    {{r|Frequency-division multiplexing}}
    454 bytes (47 words) - 14:03, 26 February 2010
  • NMR instrumentation
    The [[probe]] in an NMR spectrometer is responsible for coupling the radio frequency electromagnetic field generated by the [http://en.citizendium.org/wiki/NMR_ ...ystems for controlling the MR transceiver, magnetic field gradients, field frequency lock, spinner speed, temperature of the sample (VT), and an interface to a
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  • Black-body radiation
    ===Planck's Law: Frequency=== Formulated in terms of frequency:
    4 KB (537 words) - 09:19, 11 September 2022
  • Air Traffic Control/Related Articles
    {{r|Very-High-Frequency Omnidirectional Range}}
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  • Proportion
    ...by, a typical member of a population...the terms [[probability]], relative frequency, and proportion are used synonymously."<ref name="isbn0471526290p1">{{cite
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  • Maritime and Coastguard Agency/Related Articles
    {{r|ITU frequency bands}}
    483 bytes (65 words) - 18:20, 11 January 2010
  • Collision/Related Articles
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    465 bytes (59 words) - 15:31, 11 January 2010
  • Electromagnetic pulse
    ...ional explosives, which produces radiation in the radiofrequency and lower-frequency electrical bands. The pulse produced by this phenomenon may damage or destr ...door coupling''' goes through an antenna intended to receive power in the frequency range being generated
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  • 1-f noise/Related Articles
    {{r|Frequency spectrum}}
    282 bytes (36 words) - 20:14, 11 September 2009
  • Global Maritime Distress and Safety System
    ...ms use [[ITU frequency bands|UHF radio]] via satellite relay. Their [[ITU frequency bands|MF]] [[radio]] must support [[digital selective calling]] (DSC), a "t ...eceiver. Supplemental systems using [[digital selective calling]] on [[ITU frequency bands|VHF radio]] supplement the satellite system for coastal waters. It is
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  • Ballistic missile submarine
    ...requency Bands|Very Low Frequency]] or [[ITU Frequency Bands|Extremely Low Frequency]] bands, which require extremely long antennas. Shore stations transmitting
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  • ULQ-30
    ..., between 20 to 2500 MHz<ref>2-6000 MHz in the solicitation document</ref> frequency range, it has an approximately 20 mile range and its first target is cellul ...r control. Ideally, it would be effective against signals, which might use frequency agility, in the 2 MHz to 6 GHz range up to 30 miles away.
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  • Circuit switching
    ...n is transferred over a committed resource, such as a physical wire, radio frequency, or time slot in a fixed time-sharing schedule for transmission. Those res ...wired or wireless media, each connection is on a separate electromagnetic frequency. FDM works with both analog and digital signals.
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  • Cell phone jammer/Related Articles
    {{r|Frequency division multiple access}}
    473 bytes (56 words) - 08:51, 5 May 2024
  • PRC-154
    It operates in the [[ITU Frequency Bands|UHF frequency band]], and can have 16 channels preset. Using the JTRS Soldier Radio Wave
    2 KB (271 words) - 12:12, 1 May 2024
  • Bremsstrahlung
    ...''T'' is the global x-ray temperature determined from the spectral cut-off frequency
    3 KB (411 words) - 12:12, 24 May 2008
  • Temporal summation
    ...Summation occurs when the [[time constant]] is sufficiently long and the [[frequency]] of rises in potential are high enough that a rise in potential begins bef
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  • Phonetics/Related Articles
    {{r|Frequency}}
    606 bytes (69 words) - 04:07, 15 February 2012
  • User:John R. Brews/Fourier series
    ...a single sinusoidal wave of a variable frequency, and identifying at what frequency the note and the sinusoid sound alike.<ref name=Rossing/> However, the tone The [[frequency spectrum]] of a musical instrument playing a particular note varies with th
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  • Communications security/Related Articles
    {{r|Frequency agility}}
    697 bytes (85 words) - 11:30, 27 February 2010
  • Fourier transform
    ...n honor of [[Joseph Fourier]]. The operation of transforming back from the frequency domain to the time domain is called the [[inverse Fourier transform]]. ...e) measure]] zero). Here, <math>\scriptstyle \mathcal{F}[f]</math> is the frequency domain representation of the function <math>\scriptstyle f(t)</math>. The f
    3 KB (547 words) - 07:21, 24 December 2008
  • Sonobuoy
    **AN/SSQ-53B, AN/SSQ53D, and AN/SSQ-53E directional frequency analysis and recording (DIFAR) sonobuoys. **AN/SSQ-57B and AN/SSQ-36M calibrated low-frequency analysis and recording (LOFAR) sonobuoys.
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  • User:Howard C. Berkowitz/Related General Engineering
    {{rpl|Frequency domain}}
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  • User:Michael Silverman/Radio Frequency Identification
    ...and governmental applications due to its low cost and flexibility. [[Radio frequency]] waves are used for communication between the transponder, or tag, and the ...decode the identification number of the tag. As the data is encoded in the frequency spectrum, the unique ID created is called a spectral signature.<ref name=sw
    6 KB (990 words) - 04:24, 22 November 2023
  • Spread spectrum/Related Articles
    {{r|Frequency agility}}
    689 bytes (85 words) - 14:31, 22 March 2024
  • Deconfliction
    ...frequency. A more subtle example of electronic conflict involves an enemy frequency, if one intelligence unit is gathering information from intercepting it, bu
    4 KB (607 words) - 16:22, 30 March 2024
  • Lightning/Related Articles
    {{r|Frequency modulation}}
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  • Doppler effect
    ...frequency appears higher, and if the observer and the source separate, the frequency appears lower. ...or an observer at a fixed location is {{nowrap|''&lambda; / c'',}} and the frequency with which a crest appears at a fixed location is ''f<sub>w</sub>'' :
    10 KB (1,763 words) - 13:45, 25 September 2022
  • Speed of light/Bibliography
    *A metrology overview from NIST: {{cite journal |title=Optical frequency/wavelength references |author=L Hollberg, CW Oates, G Wilpers |journal=J Ph
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  • Radar altimeter
    If the ground is highly absorptive of the radar frequency in use, it may not be possible to get an adequate measurement. Radar altime
    718 bytes (113 words) - 18:55, 2 February 2009
  • Miller effect
    ...mplifier design, where it can cause drastic reduction of amplifier gain as frequency increases, called '''gain roll-off'''. In these amplifiers, the coupling im ...entering the amplifier. The bigger this Miller capacitance, the lower the frequency at which the amplifier fails to work.
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  • Caesar cipher
    ...type of encryption is trivial to [[cryptanalysis | cryptanalize]] using [[frequency analysis]].
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  • Cryptanalysis/Related Articles
    {{r|Frequency analysis}}
    701 bytes (92 words) - 10:46, 5 January 2009
  • Johann Christian Andreas Doppler
    ...ach and recede from the observer to substantiate Doppler's theory that the frequency was higher while approaching and lower while moving away. This effect, disc
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  • Talk:Global Navigation Satellite System
    ...st on L1 and L2," without any further explanation. Are those frequencies, frequency bands, encoding techniques, characters in "The Cat in the Hat" who live in
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  • IEEE 802.15.4
    ...re defined to operate in a variety of geographic regions with a variety of frequency bands.
    761 bytes (106 words) - 07:56, 25 April 2023
  • Rotating wave approximation
    .../math> and a [[two-level system|two-level atom]] with [[resonance|resonant frequency]] <math>\omega_0</math>. ...on because they oscillate much more quickly than terms with the difference frequency <math>\Delta:=\omega_L-\omega_0,</math> which is approximately zero.
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  • International Concert Pitch
    ...rt Pitch''' is a standardization of [[Pitch (music)|pitch]] that sets the frequency of a simple [[Tone (music)|tone]] at pitch ''A''4 (the ''A'' above middle ' ..._detail.htm?csnumber=3601 |title=ISO 16:1975; Acoustics -- Standard tuning frequency (Standard musical pitch) |publisher=ISO Standards |accessdate=2012-07-05}}
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  • Spectroscopy
    ...ncept of which being that they determine the [[amplitude]] of individual [[frequency|frequencies]] of interest in the spectrum of a complex signal. That signal
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  • Sound (acoustics)/Related Articles
    {{r|Frequency}}
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  • Software-defined radio
    ...amplifier to enhance its strength for internal processing. The higher the frequency, the more expensive and specialized the receiving antenna is likely to be. ...superheterodyne principle, to a lower, easier to process, '''intermediate frequency (IF)'''. Sometimes, "double" or "triple conversion" receivers translate the
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  • Hardy-Weinberg principle
    In [[genetics]], the '''Hardy–Weinberg principle''' states that [[gene frequency]] remains constant across generations (no [[genetic drift]]) unless a force In an example of two alleles, 'A' and 'a', random frequency is based on the binomial expansion
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  • Ultrasonography
    ...H}}</ref> In contrast, [[ultrasonic therapy]] is "the use of focused, high-frequency sound waves to produce local hyperthermia in certain diseased or injured pa ...that energy, and converting the image to clinically useful images. Higher frequency improves resolution, but reduces tissue penetration.<ref>{{Cite book | auth
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  • Mumbai/Related Articles
    {{r|Frequency modulation}}
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  • Nuclear Overhauser effect/Advanced
    In the steady state <math> \frac{d<S_z>}{dt} = 0 </math>; when the resonance frequency of spin I is irradiated , <math> <I_z> = 0</math>, therefore: ...ent in the intensity of the S signal can be obtained by irradiation at the frequency of the I spin, provided that <math> \frac{\gamma_I}{\gamma_S} > 1 </math>,
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  • Talk:Fourier transform
    ...ine functions whose frequencies are integral multiples of some fundamental frequency. [[User:Hendra I. Nurdin|Hendra I. Nurdin]] 21:50, 12 April 2008 (CDT)
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  • SPY-1
    The '''AN-|AN/SPY-1''' IEEE Frequency Bands|S-band volume search radar is the core of the AEGIS battle management AN/SPY-1 is an IEEE Frequency Bands|S-band radar intended to track a large number of targests in a volume
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  • RC-135 COMBAT SENT
    ...ivers and analysis system. In particular, it is optimized for intercepting frequency agile radar. ...nd frequency hopping receiver system (FHRS) capability for exploitation of frequency agile threat systems.
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  • Hybrid-pi model/Bibliography
    ...bn=0-19-511690-9 |chapter=§5.10: The MOSFET internal capacitances and high-frequency model |pages=pp. 441 ''ff'' |year=1998 |edition=4rth ed |url=http://www.am
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  • Nanobiotechnology
    ...ding events result in a significant and measurable change in the resonance frequency.
    3 KB (343 words) - 02:04, 15 November 2013
  • Carrier wave/Related Articles
    {{r|Frequency modulation||**}}
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  • Ultrasonic therapy
    ...c therapy''' is a form of [[diathermy]] in which "the use of focused, high-frequency sound waves to produce local hyperthermia in certain diseased or injured pa
    1 KB (140 words) - 19:03, 13 June 2010
  • Order parameter
    ...ing of temperature, a so-called ''soft mode''.<ref name=Dove/> Because the frequency drops with temperature, a ferroelectric solid experiencing this vibration b
    3 KB (418 words) - 04:17, 19 September 2013
  • RC-135 RIVET JOINT
    ...rcraft. At present, the aircraft does not have coverage of all appropriate frequency bands. ...ng low probability of intercept signals, with intercept protection such as frequency agility and co-channel interference. <ref name=GS-JASA>{{citation
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  • Talk:Stream cipher
    ...rovide synchronized precision time reference. There's some discussion at [[frequency agility]]; time synchronization is a fundamental part of the more advanced
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  • Talk:Autonomic and endocrine functions and music
    ...ions; this definitely has been reported. I wonder if there is a particular frequency that is amplified through the auditory path in some people, in the visual
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  • Global Broadcast Service
    ...he UHF range. Leased commercial satellite service for GBS uses the [[IEEE Frequency Bands|K<sub>u</sub> band]].
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  • Bode plot/Bibliography
    ...=books&ie=UTF8&qid=1307379460&sr=1-2#reader_0970951159 |chapter=Chapter 7: Frequency response and Bode plots |pages=pp. 7-1 ''ff'' |title=Circuit Analysis II w
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  • Product operator (NMR)
    ...m uses a [[rotating frame of reference]], in which the central irradiation frequency, say 800 MHz, is fixed on the X- or Y-axis, and the magnetic field, by conv .... <math>\omega</math>= 2<math>\pi\nu</math>. Remembering that the central frequency is fixed on the X-axis, the chemical shifts of each proton will cause them
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  • Telephone/Related Articles
    {{r|Frequency modulation}}
    1 KB (138 words) - 20:51, 11 January 2010
  • Allele
    ==Calculating Allele Frequency==
    4 KB (566 words) - 05:33, 15 September 2013
  • Multiaccess medium
    Multiaccess media include wireless domains divided by [[radio]] frequency or other mechanism, as well as physical media such as coaxial cable, optica
    988 bytes (146 words) - 14:42, 14 September 2008
  • Network medium
    ...et in a device that makes them appear to be a shared medium. It may be the frequency assigned to a particular wireless channel.
    885 bytes (138 words) - 07:40, 25 February 2009
  • Single Channel Ground and Airborne Radio System/Related Articles
    {{r|Frequency agility}}
    526 bytes (77 words) - 15:29, 26 July 2010
  • Electronic warfare expendables dispenser/Related Articles
    {{r|EU-NATO-US frequency bands}}
    973 bytes (121 words) - 18:00, 1 April 2024
  • Wideband Global Satellite
    ...[MILSTAR]], the third generation of which is the [[Advanced Extremely High Frequency]] system. Both these strategic and tactical systems are intended for two-wa Operating in the [[IEEE Frequency Bands|X- and Ka-bands]], these [[satellite orbits#geosynchronous orbit|geos
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  • UHF Follow-On (satellite)
    These satellites, operating in the [[UHF satellites|UHF frequency band]], provide service characterized as narrowband (i.e., low data rate),
    1 KB (150 words) - 10:20, 8 April 2024
  • Minimum Essential Emergency Communications Network
    ...em, AUTODIN, as well as well-known radio communications such as the [[high-frequency]] [[single-sideband]] radio broadcast system of the [[Strategic Air Command
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  • Cold probe (NMR)
    ...probe®''' (Bruker, Inc.) or a '''Chiliprobe®''' (Varian, Inc.), is a radio frequency (typically 600-900 MHz) exitation and receiving probe in which the electron
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  • Compton scattering
    ...e rays will be scattered and the scattered [[radiation]] will have smaller frequency (and longer wavelength) than the incident radiation. The change in waveleng
    853 bytes (129 words) - 19:40, 18 September 2021
  • Candela
    ...given direction, of a [light] source that emits monochromatic radiation of frequency 540 × 10<sup>12</sup> hertz and that has a radiant intensity in that direc
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  • User:Ben Gardiner
    ...parametric methods and multitaper spectral analysis. In engineering: radio frequency, electronic and software. My interests in computers are diverse. I am espec
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  • Electric motor/Bibliography
    }} (Inverter circuits are used for [[variable-frequency drive|variable-frequency motor speed control]])
    2 KB (315 words) - 01:37, 19 November 2007
  • Pole splitting
    ...pole higher in frequency (usually an output pole) moves to a still higher frequency: hence the name ''pole splitting''.<ref name=Toumazou/><ref name=Thompson/> ...lace the compensation capacitor with a Miller capacitor at the input and a frequency-dependent current source at the output.}}
    18 KB (3,162 words) - 09:46, 6 June 2011
  • User:Khoa Tran
    2. High Frequency Wave Scattering and Inverse Problems
    1 KB (148 words) - 04:13, 22 November 2023
  • Global Positioning System
    ...e updated data is then uplinked to the satellite via one of several [[IEEE frequency bands|S-band]] ground antennas. ...ars, faster processors with more memory, and a new civil signal on a third frequency (L5). The first GPS Block IIF satellite is scheduled to launch in 2010. Sta
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  • Hazard from Electromagnetic Radiation to Ordnance
    | title = Radio Frequency Radiation (RFR) Hazards ...hese arcs can generate EM energy throughout the RF spectrum, including low-frequency components that are in the same band as the firing signal, and will even pa
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  • Talk:Amplitude modulation
    ...signals. When a carrier frequency C is mixed with an injected information frequency D, four new frequencies are produced: C, D, C+D, and C-D. ...ou comfortable with standard (time domain) oscilloscope views? Ever used a frequency domain analyzer? Generally familiar with Fourier transforms? (sigh) of cour
    4 KB (639 words) - 13:23, 16 May 2011
  • Radiation/Gallery
    ...the electromagnetic spectrum. Note that as wavelengths become shorter and frequency of wave oscillations increase, the propagated energy increases (expressed i
    1 KB (200 words) - 19:42, 19 July 2010
  • CZ:Biology Workgroup/Biology Week/Pending decisions
    #Policy on frequency and order of [[Archive:Workgroup Weeks]]
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  • Planck's constant/Related Articles
    {{r|Frequency}}
    1 KB (157 words) - 19:35, 11 January 2010
  • HAVE QUICK II/Related Articles
    {{r|Frequency agility}}
    1,016 bytes (146 words) - 08:46, 19 April 2024
  • Plain Old Telephone Service
    ...ed converters to convert their dialing signals (i.e., [[Dual Tone Multiple Frequency]] (DTMF)) to the electronic tones used by the first telephone switch to whi
    1 KB (188 words) - 12:40, 30 August 2009
  • PRC-148
    Electronically, it covers the 30-512 MHz frequency range, is compatible with SINCGARS ground and HAVE QUICK II air tactical c
    1 KB (150 words) - 18:08, 1 April 2024
  • Pitch (music)/Related Articles
    {{r|Frequency}}
    1 KB (182 words) - 18:27, 13 July 2012
  • Radiation
    ...omagnetic radiation covers a large spectrum of wave energy related to wave frequency and amplitude, from low-energy [[radio]] waves to highly energetic [[X-ray ...the electromagnetic spectrum. Note that as wavelengths become shorter and frequency of wave oscillations increase, the propagated energy increases (expressed i
    3 KB (523 words) - 21:16, 22 July 2010
  • Valacyclovir
    Valacyclovir suppressive therapy can reduce the frequency of recurrence of [[herpes labialis]] from [[herpes simplex virus]]; however Valacyclovir suppressive therapy can reduce the frequency of recurrence of [[herpes genitalis]] from [[herpes simplex virus]] and thi
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  • Bode plot
    ...system theory|linear, time-invariant]] system using a log-frequency axis (frequency in powers of 10). ...e '''Bode gain plot''') is a graph of [[logarithm|log]] magnitude versus [[frequency]]. The magnitude axis of the Bode plot is usually expressed as [[decibel]]s
    24 KB (3,933 words) - 02:20, 14 October 2013
  • Reactive arthritis
    The frequency of reactive arthritis after an infection is estimated to be 0.6 to 3.1 case
    1 KB (167 words) - 09:43, 22 September 2010
  • Percentile
    ...lity of a random element to have the property,<br>i.e., it is the relative frequency of elements with this property (number of elements with the property divide * from a sample of size ''N'' where it also is the relative frequency which is used to estimate the corresponding percentile for the population f
    4 KB (543 words) - 08:41, 21 January 2010
  • Cent (music)
    ...frequency &Delta;ƒ/ƒ at two sound levels heard in rapid succession ''vs.'' frequency ƒ.<ref name=Seashore/>}}
    4 KB (684 words) - 08:44, 17 July 2012
  • Locality of networks/Related Articles
    {{r|Radio Frequency Identification}}
    1 KB (165 words) - 05:56, 17 March 2024
  • Lightweight and special divisions interim sensor
    ...x8 foot array, mounted on a tripod. Its transmitter operates in the [[IEEE Frequency Bands|L band]] with 50 watts peak power.
    1 KB (181 words) - 17:13, 25 January 2009
  • Single-nucleotide polymorphism
    ...NPs can be assigned a [[minor allele frequency]] &mdash; the lowest allele frequency at a [[locus (genetics)|locus]] that is observed in a particular population In the past, SNPs with a minor allele frequency of greater than or equal to 1% (or 0.5%, etc.) were given the title "SNP".<
    7 KB (957 words) - 10:47, 30 March 2010
  • Semitone (music)
    ...octave is the musical interval between two pitches, one the double of the frequency of the other.) On the other hand, Arabic-Persian music uses 22-24 pitches, ...otes in the chromatic scale, the interval of the semitone corresponds to a frequency ratio between any two adjacent pitches of 2<sup>1/12</sup>.
    4 KB (539 words) - 03:35, 16 October 2013
  • Speed of light/Related Articles
    {{r|Frequency}}
    1 KB (196 words) - 05:55, 3 April 2011
  • Direction finding
    In the [[Second World War]], the system of '''high frequency [[ITU frequency bands#HF|HF]] direction finding (DF), HF/DF''' (pronounced huff-duff) was c
    3 KB (476 words) - 06:04, 8 April 2024
  • Silicon carbide
    ...pplications as a semiconductor for applications requiring high power, high frequency or a large degree of chemical inertness. It is employed in high power [[Sch
    1 KB (184 words) - 13:38, 2 February 2011
  • Mark (disambiguation)
    *Mark frequency, extreme discrete value of [[frequency-shift keying]]
    3 KB (491 words) - 15:53, 14 March 2008
  • User talk:Samuel C. Smith
    ...here are numerous places where some background articles on time domain and frequency domain display and analysis would be useful, and they are hard to write. Pl If you have time beyond class, articles on time domain vs. frequency domain would be useful in many places.
    5 KB (767 words) - 14:58, 4 September 2008
  • User:John R. Brews/Miscellaneous
    ...f various pure tones. The various ''A''-notes are a factor of two apart in frequency.
    1 KB (214 words) - 04:07, 22 November 2023
  • Chemical reaction rate
    ...es, the [[frequency]] of [[collision]] increases and so therefore does the frequency of collisions having sufficient [[energy]] to cause reaction. ...''A'' is the [[pre-exponential factor]] or [[frequency factor (chemistry)|frequency factor]].
    7 KB (1,127 words) - 05:54, 31 October 2011
  • Perpetuity
    ...e is called a ''perpetuity due''. If the frequency of payments equals the frequency of interest compounding, the present value of a perpetuity due with payment
    3 KB (529 words) - 14:33, 12 November 2007
  • Sedative
    ...the GABA<sub>A</sub> receptors. Benzodiazepines do this by increasing the frequency of openings of channels in the cell membrane.<ref name="isbn0-07-145153-6"/ ...ociated with increased mortality with increasing mortality with increasing frequency of use of sedatives.<ref name="pmid24647164">{{cite journal| author=Weich S
    3 KB (448 words) - 17:34, 10 February 2024
  • Negative feedback amplifier
    ...egative feedback]]. The negative feedback improves performance (linearity, frequency response, [[step response]]) and reduces sensitivity to parameter variation ...the open-loop gain ''A<sub>OL</sub>'' in general may be a function of both frequency and voltage.
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  • 1-f noise/Bibliography
    | title = Low-frequency fluctuations in solids: <math>1/f</math> noise
    2 KB (185 words) - 09:45, 18 February 2010
  • Thévenin's theorem
    ...pedance may be dependent upon frequency and exhibit a phase dependent upon frequency, as normally expressed using an impedance represented by a complex number. ...s not permit any time varying current to pass through it, so at the signal frequency it behaves as an open circuit.
    7 KB (1,223 words) - 11:22, 26 May 2011
  • Electric motor/Related Articles
    * [[Variable-frequency drive]]
    2 KB (160 words) - 01:36, 19 November 2007
  • Magnetometer
    ...field that is picked up by the same inductor. The relationship between the frequency of the induced current and the strength of Earth's magnetic field is called ...d. Magnetic impurities in the sensor and errors in the measurement of the frequency are the two causes of errors in these magnetometers.
    9 KB (1,370 words) - 08:18, 12 September 2013
  • Joint Tactical Radio System
    ...th SINCGARS and HAVE QUICK II in both single-channel and frequency agility|frequency hopping modes. ...nd/or communications functions that occur from the user input to the radio frequency output and vice versa. JTRS waveform implementation consists of a Waveform
    13 KB (1,859 words) - 16:22, 30 March 2024
  • Augustine of Hippo/External Links
    ...ri/AUT31.HTM Works by Augustine in several languages, with concordance and frequency list]
    3 KB (381 words) - 19:19, 19 April 2024
  • Electronic attack
    same frequency to confuse navigation. The meaconing stations cause inaccurate bearings ...ids, which, in normal operation, transmit a response signal on a different frequency than used to trigger the aid. In such cases, meaconing sends out a stronger
    5 KB (726 words) - 08:51, 5 May 2024
  • Medium access control
    ...such as a time slot relative to the start of a cycle of communications, a frequency within a shared part of the electromagnetic spectrum, or a physical connect ...ical or air traffic control communications. The resource reserved may be a frequency, a time slot within a cycle made up from a sequence of time slots, or a par
    4 KB (528 words) - 07:32, 18 March 2024
  • Tone (music)
    The [[Vibrational spectrum|frequency spectrum]] of a musical instrument playing a particular note varies with th ...] or the [[violin]]) exhibit a fundamental frequency and multiples of that frequency called ''harmonics'' or ''overtones'', all of various amplitudes and phases
    13 KB (2,027 words) - 06:48, 18 October 2013
  • Neuroimaging
    ...ing in the magnetic field with a characteristic frequency&mdash;the lamour frequency. ...ds. These are overlaid on the external field and thereby modify the lamour frequency.
    5 KB (764 words) - 13:40, 28 July 2010
  • PRC-117
    Electronically, it covers the entire military VHF/UHF frequency range, from 30 to 512 MHz, in line-of-sight (LOS), beyond-line-of-sight (BL
    1 KB (182 words) - 17:57, 1 April 2024
  • Talk:Wavelength
    ...menon has a wavelength. For instance, take a 78 rpm gramophone record, its frequency is 78/60 = 1.3 Hz, but what is its wavelength? --[[User:Paul Wormer|Paul W
    1 KB (179 words) - 05:59, 8 March 2010
  • Radar warning receiver
    RWRs differ in the signal type and frequency ranges of the signals they detect. The two basic types of signals are radar
    2 KB (249 words) - 07:34, 18 March 2024
  • Telegraph
    ...y packet-oriented transmission. 500 kHz radiotelegraphy, long the distress frequency monitored for [[SOS]] signals, is no longer part of the [[Global Maritime D
    2 KB (222 words) - 22:03, 17 January 2021
  • Chemiluminescence
    ...of the photon emitted by NO<sub>2</sub><sup>*</sup>. Further, &nu; is the frequency of the emitted light; it is related to [[wavelength]] by
    2 KB (240 words) - 10:54, 7 May 2010
  • Multistatic
    ...lent time synchronization among the system components. If the system uses frequency agility, spread spectrum, or combination techniques of electronic protectio
    2 KB (255 words) - 16:21, 30 March 2024
  • Public Switched Telephone Network
    ...have the effect of keeping the overall frequency response faithful to the frequency vs. energy distribution in speech. ...all onto a separate copper pair became mechanically impractical. Since the frequency response of even basic copper wire is greater than the range needed for an
    7 KB (1,088 words) - 14:20, 1 December 2010
  • Mephenytoin
    ...t extensive research strongly suggests that its main mechanism is to block frequency-, use- and voltage-dependent neuronal sodium channels, and therefore limit
    2 KB (189 words) - 13:59, 25 June 2008
  • Emergency Position Indicating Radio Beacon
    ...and military emergency channels to the worldwide dedicated distress beacon frequency of 406 MHz. For maritime use, they are automatically triggered, as when a v ...PS]] radios. Such radios, [[ITU frequency bands|VHF]] near shore and [[ITU frequency bands | MF]] further at sea, have distress switches that can be actuated in
    5 KB (814 words) - 10:02, 24 August 2010
  • Redshift
    ...length]] increases, thereby causing an apparent decrease in the observed [[frequency]]. If the emitted radiation happens to be in the middle of the visible spec
    2 KB (252 words) - 21:58, 21 January 2022
  • Podcast
    ...s. Unlike radio, they are not tied to any specific requirement in terms of frequency of updates or length of shows - thus allowing people to have more sporadic
    2 KB (238 words) - 17:17, 5 July 2008
  • Family of Advanced Beyond Line-of-Sight-Terminal
    ...round Multi-band Terminal (GMT), a tactical station operating in four IEEE Frequency Bands|C, X, K<sub>u</sub> and K<sub>a</sub>. Dedicated military frequencie The High Data Rate-Radio Frequency (HDR-RF) Ground Terminal program is an evolutionary upgrade to the GMT. The
    4 KB (548 words) - 12:31, 22 March 2024
  • CZ:Bot status/ExpensiveParserJog/Test results
    history, nor in the Recent Changes. No problems occurred. With a frequency of
    2 KB (262 words) - 17:31, 18 June 2010
  • Search for Extraterrestrial Intelligence
    ...e]] in radio signals received on Earth. Observations focus on the 1420 MHz frequency at which hydrogen radiates, knowledge of which is believed to be a prerequi
    2 KB (221 words) - 18:30, 25 October 2010
  • Microphone
    ...e designed to respond to all, or selected parts, of these various acoustic frequency ranges. They can simultaneously filter and generate signals.
    2 KB (248 words) - 16:54, 7 February 2009
  • Case-control study
    ...examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group."<ref>{{MeSH}}</ref><ref name="isb ...nd a control group and then are prospectively followed in order to measure frequency of outcomes.
    4 KB (636 words) - 15:51, 8 August 2012
  • Electronic intelligence
    ...ble frequency of significant power. #Frequency agility and spread spectrum|frequency agility and spread spectrum techniques make it much less likely that a chan ...ptosystem traffic. But "HF/DF" Signals intelligence#direction finding|High Frequency Direction Finder) was still able to find where the U-Boats were by analysis
    14 KB (2,151 words) - 07:29, 18 March 2024
  • User:John R. Brews/WP Import
    ...h the resistive divider is most common, the current divider may be made of frequency dependent [[Electrical impedance|impedance]]s. In the general case the curr ...remains at its DC value ''I<sub>T</sub>'' for frequencies up to the corner frequency, whereupon it drops toward zero for higher frequencies as the capacitor eff
    8 KB (1,440 words) - 04:07, 22 November 2023
  • M1130 command vehicle
    *Frequency hopping multiplexer
    1 KB (195 words) - 15:37, 8 April 2024
  • Cluster headache
    D. Attacks have a frequency from one every other day to 8 per day<br>
    2 KB (254 words) - 08:24, 16 October 2011
  • Harmonic oscillator (classical)
    ...is often written as &omega; = 2''&pi;'' ''&nu;'', where ''&nu''; is the ''frequency'' (number of oscillation cycles per second). The time ''T'' &equiv; 1/''&nu ...ster, but the argument of the cosine remains the same. This invariance of frequency is used in timekeeping and in musical string instruments (the pitch does no
    11 KB (1,757 words) - 11:17, 11 September 2021
  • Polarizability
    ==Frequency-dependent polarizability== ...'''cos&omega;t &nbsp; the polarizibility becomes a function of the angular frequency
    12 KB (1,839 words) - 10:43, 5 October 2009
  • Envelope function
    ...ve resulting from adding two sine waves of nearly identical wavelength and frequency.}} ...''t'' is the superposition of two waves of almost the same wavelength and frequency:<ref name=Kinsman>
    12 KB (1,810 words) - 11:41, 18 June 2012
  • SPG-62
    These radars, made by Raytheon, operate in the EU-NATO-US frequency bands|I/J bands with a peak power of approximately 10 kilowatts. Obviously,
    2 KB (241 words) - 16:24, 30 March 2024
  • Joint Tactical Information Distribution System/Related Articles
    {{r|Frequency agility}}
    2 KB (238 words) - 08:34, 22 April 2024
  • Toss juggling
    ...es with an increasing number of balls, as a larger pattern allows a slower frequency.
    5 KB (792 words) - 16:47, 2 August 2008
  • Norton's theorem
    ...pedance may be dependent upon frequency and exhibit a phase dependent upon frequency, as normally expressed using an impedance represented by a complex number. ...s not permit any time varying current to pass through it, so at the signal frequency it behaves as an open circuit. No signal is lost through it. As a dual to t
    9 KB (1,673 words) - 11:24, 26 May 2011
  • PSC-5
    ...ed, especially in Marine service, by the PRC-117|AN/PRC-117, which extends frequency coverage into VHF.
    2 KB (248 words) - 18:08, 1 April 2024
  • Electronic protection
    ...e [[low probability of intercept]], rapidly changing frequencies (i.e., [[frequency agility]]) or transmitting/receiving locations (e.g., [[radar#multistatic|m
    2 KB (256 words) - 10:44, 8 April 2024
  • Talk:Electromagnetic radiation
    ...s, articles, to encourage wikilinking, such as something on wavelength and frequency that points to both. Intuitively, I think of the energy being more of a rad ...-US Frequency Bands|EU-NATO-US]], [[IEEE Frequency Bands|IEEE]], and [[ITU Frequency Bands]], now in separate articles with the same table in each. There are wi
    7 KB (1,193 words) - 09:11, 14 October 2008
  • Gyromagnetic ratio
    ...it experiences a [[torque]] and precesses about the field at the [[Larmor frequency]], which is given (in radians/s) by the product of the field strength and t ...and Calculations Using Mathematica |author=Charles Pidgeon |chapter=Larmor frequency versus field strength |url=http://books.google.com/books?id=oNXIPJuMefcC&pg
    12 KB (1,762 words) - 09:02, 25 October 2013
  • User:Daniel Mietchen/Sandbox/Context
    {{r|Fundamental frequency}}
    2 KB (311 words) - 17:00, 21 March 2024
  • Diacritic
    ==Quantity and frequency== The quantitity and the frequency of diacritics may differ.
    8 KB (1,135 words) - 14:24, 11 November 2012
  • Novator R-172 (missile)
    The missile will use the Irbis (radar)|Irbis, or Irbis-E, IEEE Frequency Bands|X-band radar.<ref name=DeagelIrbis>{{citation
    2 KB (291 words) - 16:22, 30 March 2024
  • Global Navigation Satellite System
    ...a complete orbit in approx. 11 hours, 58 minutes. All Satellites are dual-frequency and broadcast on L1 and L2 using spread-sprectrum modulation. The satellite ...hours, 15.5 minutes. All satellites broadcast L1 and L2 signals on unique frequency channels, the transmission of an L3 signal is planned.
    10 KB (1,543 words) - 10:07, 28 February 2024
  • Dextrocardia
    ...in 11,000, slightly more common in men than in women, although the actual frequency may be higher as it is entirely possible to live a long, normal life withou
    2 KB (315 words) - 23:53, 27 October 2013
  • Speed of light
    ...de of the associated electric and magnetic fields); and independent of the frequency (color) of the light (no [[dispersion]]). ...n number of wavelengths, and the relation ''c=λf'' relating wavelength and frequency to the speed of light resulted in {{nowrap|''c'' <nowiki>=</nowiki> 299,792
    15 KB (2,344 words) - 10:26, 21 September 2022
  • NMR spectroscopy/Advanced
    ...he molecular structure as well as the applied magnetic field and hence the frequency/frequencies at which absorption of electromagnetic radiation is absorbed en
    2 KB (317 words) - 00:44, 19 October 2008
  • User:Erik Lallemand
    ...lands in 2002 for developing another web-based application aiming at Radio-Frequency engineers inside a telecoms company. From October 2003 until May 2004, I mo
    2 KB (261 words) - 03:51, 22 November 2023
  • Radiofrequency MASINT
    ...d in a tank, if the interceptor does not hear engine noise or higher voice frequency than the voice modulation usually uses, even thought the voice conversatio ==Frequency Domain MASINT==
    15 KB (2,153 words) - 14:43, 18 March 2024
  • Bipolar transistor
    ...or and the emitter in the [[hybrid-pi model]] (discussed in the section on frequency dependence below), which is convenient but physically unmotivated. Inasmuch ===Frequency dependence===
    20 KB (3,320 words) - 07:39, 23 October 2021
  • BAR LOCK radar
    They operated in the frequencies designated [[EU-NATO-US frequency bands|E/F-bands]] by NATO. They 150 to 350 km range. <ref name=GS-BL>{{cita
    2 KB (295 words) - 02:27, 15 February 2010
  • Voice (communications)
    ...oral communications. Of these characteristics, the most important is the [[frequency]] range, commonly described as zero to 4000 Hz, but, in practice, filtered
    2 KB (315 words) - 19:44, 22 December 2008
  • Electromagnetic spectrum/Related Articles
    {{r|Frequency}}
    2 KB (294 words) - 14:14, 6 April 2024
  • Light
    Photons have very specific properties, such as [[wavelength]] and [[frequency]], and those observable properties determine the qualitative properties, su ...There is a direct correlation between the energy of those photons and the frequency of the light used. It should be noted however, that not all electrons can
    6 KB (897 words) - 19:10, 5 September 2021
  • User:Hans Mittendorf
    It allowed him to affirm and intensify his use of time and frequency structures in writing his works.
    2 KB (310 words) - 03:56, 22 November 2023
  • Tolvaptan
    ...Letter</ref> However, [[vasopressin]] receptor antagonist may increase the frequency of rapid sodium correction although [[osmotic demyelination syndrome]] may
    2 KB (342 words) - 10:20, 17 October 2010
  • Wow! Signal
    The '''Wow! signal''' was a strong [[narrowband]] [[radio frequency|radio]] signal detected by [[Jerry R. Ehman]] on August 15, 1977, while wor ...which is at 1420.40575177&nbsp;MHz. The two different values given for the frequency of the Wow! signal (1420.356&nbsp;MHz and 1420.4556&nbsp;MHz) are the same
    12 KB (1,817 words) - 22:07, 30 April 2013
  • McCumber relation
    ...math>\sigma_{\rm e}(\omega)</math> be effective emission cross-sections at frequency <math>\omega</math>, and let <math>~T~</math> be the effective temperature ...f populations; frequency <math>\omega_{\rm z}</math> is called "zero-line" frequency <ref name="comment">
    15 KB (2,338 words) - 08:12, 27 June 2010
  • User:Ryan Cooley/DigitalTransition
    ..., this consists of simply modulating the actual audio signal onto a higher frequency, and performing minimal filtering.
    2 KB (329 words) - 04:39, 22 November 2023
  • Christian missiology
    ...s "Islamic missiology" and "Buddhist missiology" are heard with increasing frequency. So, in discussing missiology in the twenty-first century, it is necessary
    2 KB (308 words) - 20:43, 19 February 2010
  • Dermatomyositis
    ...nd a characteristic skin rash. The illness occurs with approximately equal frequency in children and adults. The skin lesions usually take the form of a purplis
    2 KB (291 words) - 18:15, 8 September 2020
  • Joint Tactical Information Distribution System
    ...inks''' for managing the access of the multiple transmitters to the shared frequency system. Links 4A and 11 are being replaced by Link 16. ...yond line of sight. The true JTIDS messages and channels are separate, in frequency and channel spacing, from the TACAN position information.
    14 KB (2,111 words) - 16:23, 30 March 2024
  • Hybrid-pi model
    ...e quite accurate for low-frequency operation and can be adapted for higher frequency operation by addition of inter-electrode [[capacitance]]s and other parasit {{Image|Bipolar hybrid-pi model.PNG|right|200px| Simplified, low-frequency hybrid-pi [[BJT]] model.}}
    13 KB (2,071 words) - 10:15, 1 July 2011
  • User:John R. Brews/Circuits
    |Bipolar hybrid-pi model.PNG| Simplified, low-frequency hybrid-pi [[BJT]] model. |Bipolar hybrid-pi model.PNG| Simplified, low-frequency hybrid-pi [[BJT]] model.
    8 KB (1,175 words) - 04:07, 22 November 2023
  • Tactical air navigation
    ...s the usual way of referring to '''tactical air navigation''' an ultrahigh frequency electronic air (and sometimes shipboard) navigation system, able to provide
    2 KB (357 words) - 16:23, 30 March 2024
  • Infrared light
    ...from [[latin|Latin]] ''infra-'' meaning below, i.e., infrared has a lower frequency than red in the [[Electromagnetic spectrum|spectrum]].
    2 KB (316 words) - 02:54, 2 April 2024
  • Charles Dickens/External Links
    ...xt.com/Catalogo/Autori/AUT137.HTM Dickens's Works]: text, concordances and frequency lists
    4 KB (551 words) - 11:15, 13 February 2008
  • User:Ryan Cooley/DAB
    Single-Frequency Networks (FSN) Frequency-Domain Multipath
    14 KB (2,166 words) - 04:39, 22 November 2023
  • Air
    ...he blues and violets with the lowest wavelengths and therefore the highest frequency.<ref name=BlueSky>[http://www.sciencemadesimple.com/sky_blue.html Why is th ...requency colors (blues and violets) are absorbed more often than the lower-frequency colors, and this phenomenon is called [[Rayleigh scattering]]. It was named
    12 KB (1,867 words) - 08:51, 30 June 2023
  • Electronic intelligence/Related Articles
    {{r|Frequency agility}}
    2 KB (305 words) - 14:13, 6 April 2024
  • Nocturnal leg cramps
    ...ns CP, de Ruiter R, de Greef MH| title=Stretching before sleep reduces the frequency and severity of nocturnal leg cramps in older adults: a randomised trial. |
    3 KB (338 words) - 13:48, 9 April 2012
  • F-15E Strike Eagle
    ...o tactical satellite communications. It has embedded encryption as well as frequency agility.
    2 KB (309 words) - 16:21, 30 March 2024
  • P-3 Orion/Related Articles
    {{r|ARC-230|AN/ARC-230}} [[ITU frequency bands|High Frequency (HF)]] [[radio]], built around Rockwell-Collins HF-121C voice and data ope
    4 KB (583 words) - 11:05, 14 June 2010
  • Fortran/Catalogs
    * <code>FREQUENCY</code> statement (for providing optimization hints to the compiler)
    3 KB (481 words) - 04:23, 4 August 2009
  • User:Peter A. Lipson/hsv
    ...the latent phase of the illness. Prophylaxis can also be given to reduce frequency and severity of attacks.
    2 KB (336 words) - 04:31, 22 November 2023
  • Type 45-class
    ...ircraft as large as the Royal Navy Merlin. They have a bow-mounted medium-frequency sonar, but neither dipping nor towed array sonar.
    2 KB (313 words) - 16:09, 27 June 2009
  • History of cryptology
    ...ment, polyalphabetic ciphers of this type remained partially vulnerable to frequency analysis techniques<ref name="kahnbook" />. ...d-be cryptanalyst was unaware of the technique. Breaking a message without frequency analysis essentially required knowledge of the cipher used, thus encouragin
    9 KB (1,312 words) - 05:49, 8 April 2024
  • MOS capacitor
    which also shows a frequency behavior: at low frequencies the inversion layer responds completely and '' ...dently, ''C<sub>T</sub>'' and ''G<sub>p</sub>'' are found by measuring the frequency dependence in depletion. Parameter ''G<sub>n</sub>'' requires a measurement
    20 KB (3,427 words) - 06:28, 15 October 2013
  • MQ-8 Fire Scout
    *[[direction finding|radio frequency direction finder]]
    2 KB (311 words) - 06:04, 8 April 2024
  • Vocal learning
    #control over frequency features
    2 KB (320 words) - 18:33, 4 May 2010
  • Planck's constant
    ...omagnetic radiation consists of parcels of energy h&nu;, where &nu; is the frequency of the radiation.
    2 KB (344 words) - 11:40, 3 November 2021
  • Step response
    with zero-frequency gain ''A''<sub>0</sub> and angular frequency ω = 2π''f''. It is usual to describe the behavior of this function in the ...hat is, by the time constants of the open-loop amplifier. In contrast, the frequency of oscillation is set by μ, that is, by the feedback parameter through β'
    20 KB (3,032 words) - 09:34, 9 October 2013
  • User:Paul Howland
    ...nerVille Distribution to Compensate for Ionospheric Layer Movement in High Frequency SkyWave Radar Systems, IEE Proceedings Part F, Vol.140, No.1, pp 2936, Febr ...multistatic radars, radar signal processing, tracking and data fusion, low-frequency stealth and counterstealth. Particular specialism in passive radar systems
    5 KB (631 words) - 04:30, 22 November 2023
  • Ultraviolet
    ...m [[latin|Latin]] ''ultra'' meaning beyond, i.e., ultraviolet has a higher frequency than violet in the [[Electromagnetic spectrum|spectrum]].
    2 KB (347 words) - 04:54, 14 March 2024
  • User:Samuel Herec/OSA
    ...vice to record sleep apnea data. The microphone would have an expanded low-frequency response; from 20 Hz, typical of most microphones in cellular devices, down Frequency Microphone for Mobile Phones and Its Application to Ubiquitous
    8 KB (1,168 words) - 04:40, 22 November 2023
  • Omega (Greek letter)
    *Angular frequency
    3 KB (474 words) - 15:58, 19 March 2022
  • Mind
    ...ranks between ca. 300-500 in frequency of use in written English.<ref name=frequency/> <ref name=frequency>
    9 KB (1,370 words) - 18:04, 9 September 2012
  • User:Brian Volk
    His interests range from quantum computing to smallpox to optical frequency combs. He has had discussions related to these subjects with some of the he
    2 KB (378 words) - 03:29, 22 November 2023
  • Absolute risk reduction
    ...medicine]], the [[absolute risk reduction]] is a measure that compares the frequency of a clinical outcome in group of patients exposed to a factor compared to
    3 KB (376 words) - 00:59, 23 November 2009
  • Fixed point
    [[Frequency Resolved Optical Gating|FROG]] systems <ref name="frog"> Measuring ultrashort laser pulses in the time-frequency domain using frequency-resolved optical gating.
    10 KB (1,562 words) - 07:20, 13 November 2013
  • Ugly law
    ...aws remained on the books in many communities, but were enforced with less frequency throughout the first half of the twentieth century and beyond. Beginning in
    3 KB (428 words) - 19:46, 25 June 2009
  • User:Shawn Mikula
    *Mikula S, Niebur E (2003) Synaptic Depression leads to Nonmonotonic Frequency Dependence in the Coincidence Detector."Neural Computation" 15(10):2339-58
    2 KB (323 words) - 04:42, 22 November 2023
  • S-300 PMU (missile)
    Originally, the system [[IEEE frequency bands|X-band]] ground radar was a 30N6E (NATO '''FLAP LID'''), then 30N6E1 [[ITU frequency bands|VHF band]] radars, designated '''TALL KING''' by NATO, can be added f
    6 KB (867 words) - 18:41, 3 March 2024
  • Bandwidth
    ...termined by subtracting the lower cut-off frequency from the upper cut-off frequency.
    9 KB (1,473 words) - 19:42, 6 June 2009
  • Urinary retention
    The use of bladder [[ultrasonography]] may reduce the frequency of intermittent [[urinary catheterization]] among patients with [[spinal co ...}}</ref> Although the use of protocols with bladder scanners to reduce the frequency of urinary catheretization are recommended<ref name="pmid18840088">{{cite j
    8 KB (1,196 words) - 08:31, 18 October 2010
  • Alan Blumlein
    During his time there, he measured the amplitude/frequency response of human ears, and used the results to design the first [[noise we ...f his only two [[Institution of Electrical Engineers|IEE]] papers, on high-frequency resistance measurement. This won the IEE's 'Premium' award for innovation.
    8 KB (1,168 words) - 07:32, 20 April 2024
  • TPY-2
    The AN/TPY-2 is a phased-array radar, which operates in the 8.55-10 GHz IEEE frequency bands|X band. Raytheon builds it as part of an X-band family, along with th
    3 KB (404 words) - 16:23, 30 March 2024
  • 1-f noise
    where <math>f</math> is the frequency. Typical use of the term focuses on [[noise]]s with exponents in the range
    3 KB (541 words) - 19:57, 18 September 2021
  • Electromagnetic radiation
    An electromagnetic wave being characterized by its [[frequency]] &nu;, Einstein postulated light quanta to be packets of [[Energy (scienc
    3 KB (430 words) - 18:04, 8 March 2010
  • Voice over Internet Protocol
    ...Most of the information in speech, as opposed to music, is carried in the frequency range from 300 to 4000 hertz, and a 4 KiloHertz (KHz) analog channel is con ...ly converted to digital one if it were sample at twice the highest analog frequency. In the case of the 4 KHz analog signal, that meant that 8000 digital sampl
    6 KB (935 words) - 16:24, 30 March 2024
  • Gun control
    Among the main arguments for "gun control" are concerns that the frequency of gun crimes and accidents is proportional to the number (or percentage) o
    3 KB (470 words) - 09:02, 4 May 2024
  • Sewall Wright
    ...known as the Sewall Wright effect, cumulative stochastic changes in [[gene frequency|gene frequencies]] that arise from random births, deaths, and Mendelian seg ...was the height, plotted against horizontal axes representing the [[allele frequency|allele frequencies]] or the average phenotypes of the population. [[Natural
    7 KB (990 words) - 08:51, 30 June 2023
  • Digital selective calling
    ...ritime [[radio]], especially on [[ITU frequency bands|VHF]] but also [[ITU frequency bands|MF]], which gives "telephone numbers" called [[maritime mobile servic
    6 KB (1,015 words) - 10:16, 24 August 2010
  • Talk:Traffic analysis
    ...ill, it's pretty much the rule of thumb that if you transmit on a military frequency in the presence of unfriendly, technically competent strangers, it's a good
    6 KB (990 words) - 08:26, 4 May 2024
  • PRD-13
    *center frequency
    3 KB (385 words) - 18:08, 1 April 2024
  • Felix Savart
    ...o developed the Savart disk, a device which produced a sound wave of known frequency, using a rotating cog wheel as a measuring device.
    3 KB (430 words) - 10:36, 9 May 2009
  • Flashpoint Studios
    *''[[Frequency (film)|Frequency]]'' (2000)
    7 KB (999 words) - 10:47, 9 September 2023
  • User:Lars Sundnes Løvlie
    ...pplications as a semiconductor for applications requiring high power, high frequency or a large degree of chemical inertness.
    3 KB (449 words) - 04:14, 22 November 2023
  • Union Faith
    ...shing the barges, were equipped with radios, but they were not on the same frequency. ''Nola.com'' reported the disaster "spurred new regulations" which have h
    3 KB (440 words) - 12:11, 7 April 2023
  • Bordetella pertussis
    == Frequency ==
    10 KB (1,519 words) - 21:39, 1 September 2010
  • Hyponatremia
    ...013 }}</ref> However, [[vasopressin]] receptor antagonist may increase the frequency of rapid sodium correction although [[osmotic demyelination syndrome]] may
    3 KB (438 words) - 15:28, 22 May 2011
  • Photobiology
    ...h biological processes that interact with electromagnetic radiation over a frequency range that does not ionize biological molecules &mdash; from the higher-ene
    4 KB (478 words) - 15:45, 3 August 2012
  • Linguistics/Gallery
    ...uage]]. This [[spectrogram]] as used in [[acoustic phonetics]] shows the [[frequency|frequencies]] of vibrations involved in the production of six [[British Eng
    3 KB (429 words) - 15:04, 9 March 2024
  • Safety of Life at Sea
    Frequency assignments and signal characteristics are aligned with the [[International ...onders}}</ref> Current radar-SARTs are active beacons triggered by [[IEEE frequency bands|X-band]] radar signals; after 2010, they may respond to the [[Automat
    9 KB (1,388 words) - 08:41, 23 February 2024
  • Particle in a box
    ...efore frequency has increased. As with [[electromagnetic wave]]s a higher frequency corresponds to a higher energy, in agreement with the expression for <math> ...s]] tells us that <math>\scriptstyle E_n/\hbar</math> must have units of [[frequency]], so let us define
    16 KB (2,810 words) - 11:31, 5 April 2011
  • Wave equation (classical physics)
    {{Image|SW1.gif|right||<small>Fig. 2. Fundamental mode, frequency &nu;<sub>0</sub>.</small>}} {{Image|SW2.gif|right||<small>Fig. 3. First overtone, frequency 2&nu;<sub>0</sub>.</small>}}
    17 KB (2,899 words) - 02:27, 24 March 2010
  • Talk:Light
    ...that individual photons carry a fixed amount of energy. It increases with frequency (which is why X-rays and UV light can be dangerous), but is otherwise fixed ...ing'' light. Light is electromagnetic radiation falling in a rather narrow frequency band. I'm going by memory here (so look it up), but I believe it's between
    7 KB (1,140 words) - 21:59, 20 July 2008
  • History of music psychology
    ...the amplitude of the oscillation specifies the loudness of the sound, the frequency determines the pitch, and the form of the oscillation defines the tone. Mor ...13HZ whereas g' has a frequency of 783.991Hz, which is about six times the frequency of c. So they are overtones of the same fundamental.
    11 KB (1,798 words) - 03:46, 13 September 2013
  • Race (biology)
    ...erized by a high frequency of both Gm ag and Gm ab3st but an extremely low frequency of Gm afb1b3." <ref> Matsumoto H (1988) Characteristics of Mongoloid and ne
    15 KB (2,394 words) - 12:02, 18 May 2023
  • Auditory system/Bibliography
    | title = Functional Role of Auditory Cortex in Frequency Processing and Pitch Perception
    3 KB (393 words) - 00:24, 18 July 2008
  • COSPAS-SARSAT
    ...atellites listen on the single [[UHF satellites|UHF]] international rescue frequency of 406 MHz.
    3 KB (449 words) - 10:42, 8 April 2024
  • Talk:Earth (planet)
    ...ing trend of the last 10 to 15 decades has '''not''' caused an increase in frequency or severity of hurricanes.
    3 KB (510 words) - 11:28, 2 March 2022
  • Pericarditis
    ...l disease.<ref name="pmid6702635">{{cite journal |author=Spodick DH |title=Frequency of arrhythmias in acute pericarditis determined by Holter monitoring |journ
    3 KB (440 words) - 23:22, 20 February 2010
  • User:Daniel joseph martinez
    ...nt Repair Technician; Telephone/Wire Systems Installer/Operator; and F.M. (Frequency Modulation) Radio Operator. I successfully completed a long list of U.S. Ar
    3 KB (429 words) - 03:42, 22 November 2023
  • Cellular telephony
    ...mes significantly harder with more advanced digital generations, which use frequency agility and advanced multiplexing.
    3 KB (527 words) - 07:27, 18 March 2024
  • Luteinising hormone
    In females, LH is secreted in pulses throughout the ovarian cycle, but the frequency and amplitude of the pulses vary with changing levels of estrogen and proge
    3 KB (496 words) - 16:52, 28 February 2009
  • User:Howland Paul
    ...multistatic radars, radar signal processing, tracking and data fusion, low-frequency stealth and counterstealth. Particular specialism in passive radar systems
    3 KB (355 words) - 03:58, 22 November 2023
  • Porphyria
    ...[http://www.annals.org/cgi/content/full/142/6/439/T2 Table that quantifies frequency of symptoms]<br/>[http://www.annals.org/cgi/content/full/142/6/439/T3 Table The frequency of various signs and [[symptom]]s have been tabulated.<ref name="pmid157676
    8 KB (1,068 words) - 08:23, 10 September 2008
  • Electromagnetic wave
    ...mber of times per second that the vectors go through a full cycle is the [[frequency]] of the electromagnetic wave. ...mma-rays ([[radio-activity|radioactive rays]]) up to the [[VLF]] (very low frequency) radio waves of about 100 kilometer.
    25 KB (3,994 words) - 17:54, 17 April 2010
  • Electronic countermeasures suite controller
    ...For example, cueing can include telling an [[anti-radiation missile]] the frequency and other signatures of a threatening radar transmitter. The cueing can be
    3 KB (472 words) - 10:44, 8 April 2024
  • OFET
    ...ea, low-cost production of organic electronics. New products include radio-frequency identification (RFID) tags <ref>P. F. Baude, D. A. Ender, M. A. Haase, T. W
    3 KB (425 words) - 08:02, 12 November 2007
  • Human heart
    ...self-exciting. The rhythmic contractions occur spontaneously, although the frequency can be changed by nervous or hormonal influences such as exercise or the pe
    4 KB (629 words) - 09:08, 1 March 2024
  • User talk:Chris Day/Notes to self
    ::#Frequency vs frequency
    9 KB (1,361 words) - 02:08, 31 March 2009
  • Pitch (music)
    ...''harmonics'', or ''upper partial tones''. A sound containing only ''one'' frequency, like that from a tuning fork, is called a ''pure tone'' or a ''simple tone ...The human auditory perception system also may have trouble distinguishing frequency ''differences'' between notes under certain circumstances.
    32 KB (5,025 words) - 10:07, 28 February 2024
  • Walter Dean Burnham
    The frequency of its citation in the footnotes of other works indicates that Burnham's ar
    3 KB (503 words) - 01:48, 21 February 2010
  • P-8 Poseidon
    ...argeting. Periscope detection uses high scan speeds, high pulse repetition frequency, high resolution mode with advanced sea clutter rejection. The P8 has a Broadcast Info System (BIS) and secure [[ITU frequency bands|UHF]] [[satellite communications]] capability.
    7 KB (963 words) - 16:19, 19 April 2024
  • Cosmic inflation
    ...avels, the more of this space lengthening it will experience, and the more frequency shift it will exhibit.</ref> and is credited with having established this a
    9 KB (1,494 words) - 05:47, 4 January 2010
  • Nuclear magnetic resonance
    ...n can efficiently cause transitions between the nuclear spin states if the frequency of the electromagnetic radiation, ν, is equal to the energy difference &D
    4 KB (645 words) - 14:04, 28 March 2011
  • Relative permittivity
    ...fields the relative permittivity is in general a function of the [[angular frequency]] &omega;. The function &epsilon;<sub>''r''</sub>(&omega;) may vary stron
    10 KB (1,481 words) - 22:20, 22 April 2011
  • Pain measurement
    Reliability of measurement may be improved by increasing the frequency of measurement.<ref name="pmid25283469">{{cite journal| author=Heapy A, Dzi
    4 KB (566 words) - 08:06, 30 July 2015
  • Electro-optical tracking
    ...The object of interest must emit or reflect electromagnetic radiation in a frequency range that the optics can focus onto a receiving device, which converts the
    4 KB (555 words) - 02:18, 7 April 2024
  • Reductionism
    ...ourse, the belief that we understand under what circumstances the resonant frequency is invariant.<ref name=NASA/><ref name=standard/> A corollary of such error ...al.'' |quote=After a brief overview...this paper discusses the systematic frequency shifts that limit the accuracy of the clock...We have set a goal of 5 × 10
    17 KB (2,623 words) - 09:04, 14 July 2015
  • Semiconductor diode
    ...e of its rapid switching characteristics it is used in microwave and radio-frequency applications. ...''r<sub>D</sub>''. This ''transresistance amplifier'' exhibits a ''corner frequency'', denoted ''f<sub>C</sub>'':
    23 KB (3,734 words) - 07:29, 12 September 2013
  • Metre (unit)
    ...ous uncertainties of interferometry, and to uncertainties in measuring the frequency of the source.<ref name=Beers2> ...ber of wavelengths corresponds to an uncertainty of &Delta;f=10 kHz in the frequency of the laser.<ref name=NRC>
    34 KB (5,178 words) - 10:12, 28 February 2024
  • Random number generator
    ...ock, determining when to take the faster one's state as an output bit. The frequency ratio is typically around 100:1, so quite minor variations in the slow one }}</ref> use two oscillators, and modulate the frequency of the slower one with thermal noise. The hardware includes a de-skewing op
    23 KB (3,650 words) - 05:49, 8 April 2024
  • Photon
    Given an electromagnetic wave with [[wavelength]] &lambda;, its [[frequency]] &nu; is inversely proportional to &lambda;: &nu; = ''c''/&lambda;, where
    4 KB (577 words) - 13:21, 3 November 2021
  • International Bureau of Weights and Measures
    **Frequency and Gravimetry
    4 KB (656 words) - 14:43, 10 June 2010
  • Search and rescue transponder
    ...he people in distress. Radar for these applications, usually in the [[IEEE frequency bands|X-band]], normally depends on the reflections of its energy. When the
    4 KB (635 words) - 10:05, 24 August 2010
  • Growth hormone
    ...l normal-sized (Dw/dw) chickens, and no differences in peak length or peak frequency between genotypes are observed. By contrast, in the dwarf mouse strain (lit ...tion, and refeeding results initially in low-amplitude pulses (at a higher frequency than the endogenous rhythm) giving way to normal 3h high-amplitude pulses w
    8 KB (1,288 words) - 00:04, 11 June 2010
  • Free particle
    for any frequency <math>\omega.</math>
    4 KB (711 words) - 09:31, 26 March 2011
  • User talk:Michael Silverman
    ...ond "see also" at Wikipedia, is our "Related Articles" subpage. At [[Radio frequency identification/Related Articles]], feel free to edit in the appropriate hig
    4 KB (635 words) - 11:00, 7 March 2024
  • Gamma-aminobutyric acid
    ...<sub>A</sub> receptors. However, benzodiazepines do this by increasing the frequency of openings of channels in the cell membrane.<ref name="isbn0-07-145153-6"/
    4 KB (570 words) - 09:47, 30 January 2014
  • Talk:Information security
    ...unications security" for [[cipher#bulk encryption]], [[spread spectrum]]/[[frequency agility]], [[red-black engineering]], protection against things like [[Oper
    4 KB (594 words) - 20:03, 24 October 2008
  • Zero-point energy
    ...pensated, that is, there is as much radiation Doppler shifted into a given frequency interval Δf as there is shifted out by uniform motion. ...y, but unfortunately if the energy spectrum does continue up to the Planck frequency, there may be 120 orders of magnitude more energy per cubic centimeter than
    16 KB (2,522 words) - 14:33, 14 May 2023
  • Music perception
    ...luid. The maximal displacement of the basilar membrane is dependent on the frequency and intensity of the stimulus. ...how well a certain range of frequencies around a preferred characteristic frequency is contained in the original signal (the frequencies and intensities to whi
    25 KB (3,720 words) - 17:01, 21 March 2024
  • User:Anthony.Sebastian/Sbox03-mr
    ...ertson JA, Theberge J, Weller J, Drost DJ, Prato FS, Thomas AW. (2010) Low-frequency pulsed electromagnetic field exposure can alter neuroprocessing in humans. ...en J, Gillis P. (2010) Theoretical evaluation of magnetoreception of power-frequency fields. ''Bioelectromagnetics'' 31:371-9. [http://dx.doi.org/10.1002/bem.20
    9 KB (1,185 words) - 02:52, 22 November 2023
  • Safety and survivability of naval vessels
    | title = Acquisition Safety - Radio Frequency Radiation (RFR) Hazards ...ecially in the [[ITU frequency bands|very high frequency (VHF)]] and lower frequency range, metal cables, or any metal object long enough to act as an antenna,
    13 KB (1,960 words) - 08:58, 4 May 2024
  • Ovarian cancer
    ...1">{{cite journal |author=Goff BA, Mandel LS, Melancon CH, Muntz HG |title=Frequency of symptoms of ovarian cancer in women presenting to primary care clinics |
    4 KB (556 words) - 21:28, 19 June 2014
  • Earthquake
    Earthquakes are very frequent, though the frequency varies inversely with the size of the earthquake - earthquakes as large as
    5 KB (707 words) - 19:37, 9 January 2021
  • Signal processing
    ...sis]] and [[spectral estimation]]: These topics deal with the study of the frequency content and components of a signal, and on development of techniques for es
    4 KB (713 words) - 01:42, 10 February 2010
  • Probability
    ...50%, because when we flip it an infinite number of times, that's what the frequency will be.
    4 KB (672 words) - 14:38, 30 January 2011
  • Microsporum canis
    ...es on the hair coat of dogs and cats without [[cutaneous]] lesions and the frequency of owners becoming infected. Many cases of tinea corporis in southern Ital ...r samples taken from cats during the winter months contributed to a higher frequency of infection. The majority of examined cats lived in ([[rural]]) areas whe
    10 KB (1,494 words) - 22:06, 1 March 2009
  • MPQ-64
    ...radar#Pulse Doppler Radar|pulse-doppler system operating in the EU-NATO-US frequency bands|X-band. While radar#phased array radar|phased array radars frequently
    4 KB (554 words) - 16:22, 30 March 2024
  • Signals intelligence collection, submarine-based
    ...-18&nbsp;GHz, provides radar warning, and 1.4 to 5 degree DF (depending on frequency). <ref name=Friedman2003 /><ref name=Fisher2005>{{citation ...-18&nbsp;GHz, provides radar warning, and 1.4 to 5 degree DF (depending on frequency).
    14 KB (1,936 words) - 09:03, 9 August 2023
  • Note (music)
    ...quency of vibration]], in which case the pitch is uniquely related to that frequency at a given loudness.<ref name=Hallam/> ...f various pure tones. The various ''A''-notes are a factor of two apart in frequency, an ''octave'' (eight notes).<ref name=Gunther/> The number following a let
    30 KB (4,652 words) - 02:22, 27 October 2013
  • Vacuum (classical)
    ...ties. These ideal properties are independent of field strength, direction, frequency, or polarization, and from temperature.<ref name=Weiglhofer> ...not depend upon direction of propagation, field strength, polarization, or frequency. Consequently, classical vacuum is isotropic, linear, non-dichroic, and dis
    10 KB (1,488 words) - 12:29, 16 November 2011
  • User:Rozann Whitaker
    ...P). Rozann also initiated and supported the development of handheld radio frequency voting keypads to support group decision making.
    4 KB (608 words) - 04:39, 22 November 2023
  • Warfighter Information Network–Tactical
    ...nd on the fate of the new budget in Congress. AEHF operates in a different frequency range and is more resistant to [[electronic warfare]] (EW) than the [[Wideb
    11 KB (1,530 words) - 10:20, 8 April 2024
  • Force XXI Battle Command Brigade and Below
    ...cation Reporting System (EPLRS), while the remainder use a commercial IEEE Frequency Bands| L-band satellite network. Both connectivity approaches have problems
    4 KB (589 words) - 16:22, 30 March 2024
  • User:Howard C. Berkowitz/Talk - Cell phone jammer
    ...esirable method. If the particular cellular system uses spread spectrum or frequency agility, it is quite resistant to high-power jamming. Effective attacks are
    4 KB (580 words) - 08:51, 5 May 2024
  • Personal area network
    ...pacitively coupling modulated picoamperes currents through the body. A low frequency carrier (below 1 MHz) is used so very little energy is radiated outside the
    4 KB (609 words) - 21:25, 23 May 2010
  • Yamaha GX-1
    ..., a 2-pole low-pass filter, at least one (poly-mod) voltage-controlled low-frequency oscillator, and at least two envelope generators. The different keyboard's
    4 KB (593 words) - 09:41, 14 October 2009
  • Amateur radio/Catalogs/USA
    !Frequency (MHz)
    6 KB (733 words) - 12:46, 24 September 2007
  • Vic Snyder
    ...Although IEDs are not a new threat, they have been used with unprecedented frequency in Iraq and Afghanistan. While the decrease in successful attacks in Iraq i
    4 KB (623 words) - 08:51, 5 May 2024
  • Cough
    ...thor=Irwin RS, Curley FJ, French CL |title=Chronic cough. The spectrum and frequency of causes, key components of the diagnostic evaluation, and outcome of spec
    5 KB (675 words) - 21:08, 19 February 2010
  • Molecule
    ...]) of molecules interacting with probing signals of known [[energy]] (or [[frequency]], according to [[Planck's constant|Planck's formula]]). [[Scattering theor
    11 KB (1,558 words) - 21:27, 10 November 2020
  • Operational amplifier
    ...stabilize]] the circuit by introducing a dominant pole. This is known as [[frequency compensation]]. ...product|gain bandwidth products]] of hundreds of megahertz. For very high-frequency circuits, a completely different form of op-amp called the [[current-feedba
    27 KB (4,146 words) - 19:58, 1 October 2013
  • Chaff (electronic warfare)
    ...aff has to be designed for a specific threat, when the Germans changed the frequency of their SN2 airborne intercept radar in 1943, the "Window" then used by th
    5 KB (698 words) - 05:20, 31 March 2024
  • User:John J. Dennehy
    ...dahl, T. 2004. Polymorphic foraging behavior among Caenorhabditis elegans. Frequency- and density-dependent selection. Journal of Nematology 36: 276-280.
    4 KB (481 words) - 04:06, 22 November 2023
  • Musical semantics
    ...are mainly determined by music-like features (such as pitch, amplitude-and frequency-modulations, timbre and rhythm), and it is assumed that human musical abili ...-like magnetoencephalography responses modulated by semantic context, word frequency and lexical class in sentences, Neuroimage, 2002
    11 KB (1,593 words) - 14:31, 18 February 2024
  • Recommendation system
    * '''Memory/Heuristic''' - uses frequency, inverse document frequency (TF-IDF) text retrieval method<br />
    12 KB (1,657 words) - 06:58, 23 July 2012
  • User:Daniel Mietchen/Sandbox for drafts
    ...tion of the disperse cortical and thalamic neurons populations during high frequency oscillations; it is also known that these synchronizations underlie specifi
    5 KB (748 words) - 03:41, 22 November 2023
  • Lactose intolerance
    Table 1.1 Frequency of Adult Lactose Intolerance within Population Groups <ref name=Jurmain2005 ...to ceasing the production of [[lactase]]. This would change the [[allele frequency]] making the expression of lactose intolerance genetically dominant. In
    15 KB (2,165 words) - 21:08, 26 October 2010
  • Epilepsy and Pregnancy
    ...; Allien, Stephanie; Pennell, Page B. (2022-02-22). "Variations in Seizure Frequency During Pregnancy and Postpartum by Epilepsy Type". Neurology. 98 (8): e802� ...equency and consider a shorter dosage interval (e.g., 10 weeks) if seizure frequency increases prior to the next dose (especially if on an enzyme-inducing ASM).
    14 KB (1,898 words) - 17:33, 7 December 2023
  • Epidemiology
    ...and control using [[statistics| statistical]] determinations of incidence, frequency, prevalence and distribution. ...he time of year when there is more sunlight. [[Influenza]] shows a greater frequency during those times of the year when [[weather]] usually forces people insid
    16 KB (2,458 words) - 07:32, 20 April 2024
  • Quantization of the electromagnetic field
    ...wave vector is |'''k'''| = 2&pi;&nu;/''c'' = &omega;/''c'', with &nu; the frequency of the mode. The components of the vector '''k''' have discrete values (a c where &omega; &equiv; 2&pi;&nu; is the fundamental frequency of the oscillator. The ground state of the oscillator is designated by | 0
    23 KB (3,635 words) - 05:33, 1 April 2024
  • Triple M Classic Rock Digital
    ...ross Austereo's Triple M radio network. The station can be heard on DAB+ [[Frequency modulation|FM]] radios, mobile phones, and on-line. Triple M Classic Rock D ! Frequency (MHz)
    11 KB (1,519 words) - 14:35, 2 February 2023
  • P-3 Orion
    * [[ARC-230|AN/ARC-230]] [[ITU frequency bands|High Frequency (HF)]] [[radio]], built around Rockwell-Collins HF-121C voice and data ope
    8 KB (1,184 words) - 14:08, 31 March 2024
  • Econophysics
    ...analysts]], and the complex patterns observed in the newly-available high-frequency financial data, which suggested links to various contemporary developments
    6 KB (623 words) - 10:16, 26 September 2007
  • Tremor
    ...tion. Essential tremor may be accompanied by mild gait disturbance. Tremor frequency may decrease as the person ages, but the severity may increase, affecting t ...d a temperature-controlled electrode is inserted into the thalamus. A low-frequency current is passed through the electrode to activate the tremor and to confi
    15 KB (2,251 words) - 21:21, 15 December 2013
  • Network topology
    ...mmon physical buses are wireless, where the common medium is a given radio frequency.
    6 KB (923 words) - 12:40, 11 June 2009
  • NMR spectroscopy
    ...netically active nuclei in the presence of a magnetic field by using radio frequency electromagnetic radiation.<ref> I. I. Rabi.(1937) Phys. Rev., 51 652</ref> Pulses of radio-frequency electromagnetic radiation can be used to perturb the nuclear spin systems i
    41 KB (6,350 words) - 04:54, 21 March 2024
  • X-ray
    ...ionizing radiation|ionizing]] type of [[electromagnetic radiation]] in the frequency range of 3&times;10<sup>16</sup> Hz to 3 &times; 10<sup>19</sup> Hz. They c
    6 KB (843 words) - 12:45, 30 March 2024
  • Edward G. Jones
    ...tion of the disperse cortical and thalamic neurons populations during high frequency oscillations; it is also known that these synchronizations underlie specifi
    5 KB (781 words) - 07:20, 28 March 2023
  • Imaging radar
    ...Wavelength is inversely proportional to frequency, so increasing the radar frequency can improve resolution. It can be difficult to generate high power at the h
    11 KB (1,590 words) - 09:03, 19 April 2024
  • Phonetics
    ...eech]]. This [[spectrogram]] as used in [[acoustic phonetics]] shows the [[frequency|frequencies]] of vibrations involved in the production of six [[British Eng
    5 KB (743 words) - 03:42, 9 July 2009
  • Signals intelligence
    ...on|nonspecific SIGINT]] sensor can cue a [[MASINT#Frequency Domain MASINT| Frequency Domain MASINT]] sensor that can help identify the purpose of the signal. If ...ff the ground if it had to carry antennas and receivers for every possible frequency and signal type.
    36 KB (5,247 words) - 05:49, 8 April 2024
  • Hadrian's Wall
    ...top of the wall having long since been lost. Some experts assert that the frequency of turrets and milecastles made such a walkway superfluous.
    5 KB (936 words) - 14:43, 17 January 2013
  • Linguistic typology
    ...To define the basic constituent order type in this case one has to look at frequency of different types in declarative affirmative main clauses in pragmatically
    6 KB (872 words) - 14:18, 18 February 2024
  • EF-18 Growler
    ..., through an AN-|AN/ALQ-99 pod, jams more complex waveforms over a broader frequency range. This new device replaces four on the Prowler. <ref name=Colucci2008-
    5 KB (788 words) - 16:23, 30 March 2024
  • Energostatic hypothesis
    ...thought to mainly be in maintaining satiety following a meal as it is meal frequency and not meal size that is altered. This suggested that the link between the ...tatic hypothesis can control short term feeding behaviours related to meal frequency and meal size but it does not seem to have a major impact over long term en
    13 KB (2,140 words) - 10:29, 1 December 2013
  • Electronic warfare
    ...r reason that if the frequency(ies) of the threat are known, flooding that frequency will be a more efficient use of the available power. More sophisticated jam same frequency to confuse navigation. The meaconing stations cause inaccurate bearings
    30 KB (4,571 words) - 06:56, 4 April 2024
  • Tension headache
    ...ty in the [[head]]; [[scalp]]; or [[neck]]. the subtypes are classified by frequency and severity of symptoms. there is no clear cause even though it has been a
    6 KB (838 words) - 21:18, 4 June 2012
  • Talk:Lumbalgia
    ...develop into a chronic low back pain with a change in symptom quality and frequency depending on the type of structures that become affected, such as discs and
    5 KB (854 words) - 14:37, 26 February 2008
  • NMR spectroscopy/Citable Version
    ...e spin states of nuclei in the presence of a magnetic field by using radio frequency electromagnetic radiation.<ref> I. I. Rabi.(1937) Phys. Rev., 51 652</ref> Pulses of radio-frequency electromagnetic radiation can be used to perturb the nuclear spin systems i
    39 KB (6,024 words) - 04:54, 21 March 2024
  • Communications intelligence
    ...racted. Given the simplifying assumption that the signal stays on a single frequency, it will still be necessary to determine the type of modulation in use. ...e.g., a given country's medium artillery batteries might be known to use [[frequency modulation]], of a certain bandwidth per channel, for its tactical communic
    12 KB (1,821 words) - 06:04, 8 April 2024
  • Fourier series
    where &omega;<sub>0</sub> = 2&pi;/''T'' is called the ''fundamental frequency'' and its multiples 2&omega;<sub>0</sub>, 3&omega;<sub>0</sub>,... are call
    7 KB (1,088 words) - 10:11, 11 June 2012
  • Reginald Fessenden
    ...eam from Washington, DC. While there, Fessenden, experimenting with a high-frequency spark transmitter, successfully transmitted speech on December 23, 1900 ove ...transmitter &mdash; one that produced a pure sine-wave signal on a single frequency &mdash; would be far more efficient, particularly because it could be used
    18 KB (2,698 words) - 06:40, 17 November 2007
  • Telephone
    ...e [[#Digital telephony|digital telephony]] was [[N carrier]], which used [[frequency modulation]] to put a [[group (telephony)]] of 12 channels onto a pair. ...lexing systems, intended for longer range, could combine groups into wider-frequency signals that usually traveled over [[coaxial cable]] rather than [[twisted
    21 KB (3,055 words) - 07:33, 20 April 2024
  • Metacognition/Bibliography
    ...events, called tip-of-the-tongue states, happen a lot and may increase in frequency as we grow older (Schwartz, 2002). They are metacognitive in nature because
    6 KB (874 words) - 21:11, 14 October 2010
  • Talk:Free space (electromagnetism)
    ...s proportional to the frequency. For a free particle (zero potential), the frequency is zero, and therefore... [[User:Boris Tsirelson|Boris Tsirelson]] 15:45, 3
    16 KB (2,503 words) - 06:18, 1 December 2010
  • Talk:Cryptanalysis/Draft
    ...RAFTER]] (specific case of getting the received text off the intermediate frequency) ...tems, other than than confirming the system is simple transposition if the frequency of letter curve matches, and the counts of letters in cleartest match the l
    35 KB (5,604 words) - 18:31, 13 March 2024
  • Automatic Identification System
    ...oard broadcast system that acts like a transponder, operating in the [[ITU frequency bands|VHF maritime frequencies]]. VHF is a short-range [[radio]] technology
    6 KB (862 words) - 07:23, 24 August 2010
  • Wave-particle duality
    ...showing a direct relationship between the energy of the electrons and the frequency of the incident radiation (the radiation that strikes the solid matter).<re
    7 KB (963 words) - 03:55, 1 November 2010
  • Metal-oxide-semiconductor field-effect transistor
    ===Frequency dependence=== ...re for a device biased in active mode. This circuit reduces the problem of frequency response to the ''RC'' time-constants related to charge and discharge of va
    25 KB (4,018 words) - 04:18, 1 November 2013
  • Two-port network
    ...the h-equivalent circuit of the transistor agree with the small-signal low-frequency circuit found using the transistor [[hybrid-pi model]] at the right. Notati ...ifier agree with the small-signal circuit found using the small-signal low-frequency [[hybrid-pi model]] for the transistor. Notation: ''r<sub>&pi;</sub>'' = ba
    20 KB (3,085 words) - 10:38, 2 July 2011
  • Prokaryote phylogeny and evolution
    ...omic sequences by Fan Ge, Li-San Wang, and Junhyong Kim. They estimate the frequency of HGT events at about 2% of core genes per genome.<ref>Ge F ''et al'' (200
    13 KB (2,052 words) - 06:27, 15 September 2013
  • Brain plasticity and music
    ...spectrum disorder. The talent of absolute pitch can change over lifetime. Frequency levels can move or misalign. ...supposed to delay and weaken responses to stimuli that slightly differ in frequency and is vital for speech comprehension and working memory tasks for which au
    19 KB (2,889 words) - 10:27, 1 April 2024
  • Sensitivity and specificity
    ...ot have disease will yield an accuracy of over 99%, whereas if the disease frequency were 999 in one thousand, the same guess would yield an accuracy near 1%.
    18 KB (2,610 words) - 05:45, 15 March 2024
  • Star
    ...nd the longest wave length and highest energy corresponds with the highest frequency and shortest wavelength </ref>
    14 KB (2,338 words) - 10:18, 23 November 2011
  • Schrödinger equation
    ...ox, where now energy determines the oscillatory time dependence instead of frequency. Thus, a particle is able to exist in the box with only a set of discrete e
    17 KB (2,678 words) - 10:12, 9 May 2011
  • User talk:Yuval Langer
    ...ffects on biological systems; [[Geophysical MASINT#Surveillance Vessel Low-Frequency Active]] discusses more specifics about sonar and whale behavior. Even the
    6 KB (917 words) - 09:02, 4 May 2024
  • Ecological succession
    ...climax" community unattainable. Climate change often occurs at a rate and frequency sufficient to prevent arrival at a climax state. Additions to available sp
    7 KB (984 words) - 06:22, 9 June 2009
  • CZ:Import/Apuleius
    ...ext.com/Catalogo/Autori/AUT23.HTM Apuleius' works]: text, concordances and frequency list
    7 KB (1,020 words) - 01:30, 16 September 2008
  • User:John R. Brews/Images
    |Bipolar hybrid-pi model.PNG| Simplified, low-frequency hybrid-pi [[BJT]] model. |Bipolar hybrid-pi model.PNG| Simplified, low-frequency hybrid-pi [[BJT]] model.
    19 KB (2,805 words) - 04:07, 22 November 2023
  • Natural family planning
    ...nted properly, Jewish laws could serve to regulate the timing, potency and frequency of marital relations so as to maximize reproductive outcomes. ...ng of marital relations so as to synchronize with the menstrual cycle. The frequency of martial relations, moreover, is governed by Jewish laws concerning the h
    15 KB (2,299 words) - 14:02, 24 November 2023
  • Metoprolol
    ...ttke H, Rau T, Heide R, Bergmann K, Böhm M, Weil J et al.| title=Increased frequency of cytochrome P450 2D6 poor metabolizers among patients with metoprolol-ass
    7 KB (1,032 words) - 13:16, 2 February 2023
  • Integrated air defense system
    ...which controlled AAA. These reports were sent by ITU frequency bands|high-frequency (HF) radiotelegraphy, in standardized message formats where only the speci ...mmunications systems emanated from Air Defense Headquarters, including ITU frequency bands|VHF voice}}, landlines, and HF/MF. Due to the need to move informatio
    18 KB (2,744 words) - 04:39, 5 April 2024
  • MQ-1 Predator
    ...well as the [[MQ-9 Reaper]]. This package is optimized to intercept lower-frequency communications, such as mobile telephones. It is also carried by the [[MQ-4
    6 KB (820 words) - 12:05, 31 March 2024
  • Microcystis
    ...hate) that are added to the Bays by human activities may contribute to the frequency and intensity of blooms.
    7 KB (1,042 words) - 20:35, 9 December 2022
  • RC-135 COBRA BALL
    ...gy Control Regime (MCTR). Where COBRA JUDY is built into a ship, this dual frequency (S- and X-band) radar is transportable, capable of operating on ships or on
    6 KB (881 words) - 12:24, 22 March 2024
  • Robert O. Becker
    ...He was (for both fracture healing and regeneration) not concerned with the frequency aspect of the stimulation − in contrast to e.g. [[Royal Rife]] and [[Huld ...e health impact of extremely low frequency electromagnetic fields and high frequency waves were drawn up and proposed to international political institutions (W
    22 KB (3,131 words) - 10:15, 8 April 2023
  • Patient compliance
    |+ Dosing frequency and compliance
    7 KB (1,000 words) - 05:51, 7 May 2015
  • IEEE 802.3
    Additional modes operated in a "broadband" mode as a modulated radio frequency signal on cable television distribution systems, and with optical signaling
    7 KB (1,105 words) - 07:29, 18 March 2024
  • Benchmark quantities
    ==[[Frequency]]== Frequency is the repetition rate at which cyclical (repetitive) phenomena repeat.
    45 KB (6,572 words) - 12:36, 9 March 2024
  • Thread (network protocol)
    * Frequency band: 2.4 GHz
    7 KB (1,122 words) - 07:28, 25 April 2023
  • Talk:Human uniqueness
    ...h apes living in different areas show that terrestrial apes show a higher frequency oof horizontal scanning) - 35 million SNPs --> frequency of 1.06%
    15 KB (2,172 words) - 14:19, 8 October 2008
  • Constipation
    ...f J, Quigley EM |title=An examination of the reliability of reported stool frequency in the diagnosis of idiopathic constipation |journal=Am. J. Gastroenterol.
    8 KB (1,081 words) - 09:21, 19 July 2010
  • MPEG-1
    ...ence''' (SCR) is a timing value stored in a 33-bit header of each ES, at a frequency/precision of 90 kHz, with an extra 9-bit extension that stores additional t ...converts the 64 uncompressed pixel values (brightness) into 64 different ''frequency'' values. One (large) '''DC coefficient''', which is the average of the en
    60 KB (8,883 words) - 02:16, 18 November 2009
  • User:Ryan Cooley/MPEG-1
    ...ence''' (SCR) is a timing value stored in a 33-bit header of each ES, at a frequency/precision of 90 kHz, with an extra 9-bit extension that stores additional t ...converts the 64 uncompressed pixel values (brightness) into 64 different ''frequency'' values. One (large) '''DC coefficient''', which is the average of the en
    62 KB (9,057 words) - 04:39, 22 November 2023
  • User:Ryan Cooley/MPEG1
    ...ence''' (SCR) is a timing value stored in a 33-bit header of each ES, at a frequency/precision of 90 kHz, with an extra 9-bit extension that stores additional t ...converts the 64 uncompressed pixel values (brightness) into 64 different ''frequency'' values. One (large) '''DC coefficient''', which is the average of the en
    62 KB (9,057 words) - 04:39, 22 November 2023
  • Microcystis aeruginosa
    ...hate) that are added to the Bays by human activities may contribute to the frequency and intensity of blooms.
    7 KB (1,111 words) - 22:47, 26 October 2013
  • Talk:IPsec
    ...[protected distribution system]], and combinations of spread spectrum with frequency agility (and even multiple antennas).
    18 KB (2,759 words) - 06:36, 1 November 2008
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