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- ...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 ( '''''T2 KB (257 words) - 20:29, 21 July 2020
- ...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
- 169 bytes (24 words) - 13:28, 28 September 2008
- 29 bytes (2 words) - 15:30, 27 February 2010
- #REDIRECT [[ITU frequency bands]]33 bytes (4 words) - 06:50, 19 November 2011
- #REDIRECT [[ITU frequency bands]]33 bytes (4 words) - 06:50, 19 November 2011
- ...tic signal of constant frequency -- the "carrier wave" -- by changing the frequency in proportion to the instantaneous strength of the information signal to be546 bytes (86 words) - 22:47, 21 May 2008
- #Redirect [[Frequency modulation]]34 bytes (3 words) - 08:57, 22 May 2008
- 35 bytes (3 words) - 19:20, 6 May 2008
- ...uencies, possibly under the control of pseudo-random, network-synchronized frequency selection software249 bytes (29 words) - 23:46, 17 July 2008
- ...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 range2 KB (232 words) - 10:54, 19 September 2009
- '''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 conn2 KB (384 words) - 19:07, 2 February 2009
- #REDIRECT [[ITU frequency bands]]33 bytes (4 words) - 06:39, 21 May 2008
- {{r|ITU frequency bands}} {{r|IEEE frequency bands}}362 bytes (44 words) - 12:21, 25 June 2012
- ...(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 bands2 KB (267 words) - 20:38, 20 November 2008
- #Redirect [[ITU frequency bands]]33 bytes (4 words) - 06:38, 21 May 2008
- #REDIRECT [[Radio Frequency Identification]]44 bytes (4 words) - 19:07, 2 February 2009
- #Redirect [[IEEE frequency bands]]34 bytes (4 words) - 06:39, 21 May 2008
- Technique for imposing information onto a electromagnetic signal of constant frequency -- the "carrier wave".145 bytes (18 words) - 13:09, 11 July 2009
- #Redirect [[IEEE frequency bands]]34 bytes (4 words) - 06:40, 21 May 2008
- A part of the radio frequency spectrum between 3 and 30 Megahertz65 bytes (10 words) - 13:23, 11 December 2010
- 220 bytes (23 words) - 05:15, 4 September 2009
- 231 bytes (26 words) - 14:02, 4 September 2009
- 402 bytes (55 words) - 17:51, 28 July 2009
- 340 bytes (44 words) - 01:51, 23 March 2014
- 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
- {{r|IEEE frequency bands}}167 bytes (19 words) - 21:11, 8 March 2011
- 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
- 145 bytes (17 words) - 16:03, 3 April 2024
Page text matches
- ...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
- ...-range early warning [[radar]], operating in the [[ITU frequency bands|VHF frequency range]]141 bytes (18 words) - 21:58, 31 October 2008
- {{r|Frequency}} {{r|ITU frequency bands}}334 bytes (41 words) - 16:03, 8 March 2010
- ...itime Distress and Safety System]] (GMDSS), a [[ITU frequency bands|medium frequency]] radio broadcast service for marine-oriented weather information223 bytes (27 words) - 09:33, 24 August 2010
- ...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
- ...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 range2 KB (232 words) - 10:54, 19 September 2009
- {{r|Frequency modulation}} {{r|Radio-Frequency Identification}}783 bytes (98 words) - 18:55, 27 February 2014
- ...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
- {{r|ITU frequency bands}} {{r|IEEE frequency bands}}362 bytes (44 words) - 12:21, 25 June 2012
- ...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 secure267 bytes (37 words) - 00:03, 28 July 2010
- {{r|Frequency modulation}} {{r|Beat frequency}}291 bytes (32 words) - 08:05, 20 May 2008
- ...with a large parabolic antenna, operating in the [[ITU Frequency Bands|VHF frequency spectrum]], which was the initial tracking component of the [[Ballistic Mis294 bytes (40 words) - 00:54, 23 July 2010
- ...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
- 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
- ...the frequency-dependent polarizability α(ω) in even powers of frequency ω.221 bytes (32 words) - 09:21, 27 July 2008
- ...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
- ...tic signal of constant frequency -- the "carrier wave" -- by changing the frequency in proportion to the instantaneous strength of the information signal to be546 bytes (86 words) - 22:47, 21 May 2008
- {{r|Beat frequency}} {{r|Beat frequency oscillator}}280 bytes (34 words) - 08:27, 20 May 2008
- ...;) 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
- #REDIRECT [[Frequency]]23 bytes (2 words) - 17:08, 7 April 2010
- ...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 digital741 bytes (110 words) - 10:20, 8 April 2024
- #Redirect [[Frequency modulation]]34 bytes (3 words) - 08:57, 22 May 2008
- #Redirect [[IEEE frequency bands]]34 bytes (4 words) - 06:39, 21 May 2008
- #Redirect [[IEEE frequency bands]]34 bytes (4 words) - 06:40, 21 May 2008
- #REDIRECT [[ITU frequency bands]]33 bytes (4 words) - 06:50, 19 November 2011
- #REDIRECT [[ITU frequency bands]]33 bytes (4 words) - 06:50, 19 November 2011
- #REDIRECT [[Radio Frequency Identification]]44 bytes (4 words) - 19:07, 2 February 2009
- #REDIRECT [[ITU frequency bands]]33 bytes (4 words) - 06:39, 21 May 2008
- #REDIRECT [[Radio Frequency Identification]]44 bytes (4 words) - 16:02, 3 February 2009
- #Redirect [[ITU frequency bands]]33 bytes (4 words) - 06:38, 21 May 2008
- {{r|IEEE frequency bands}} {{r|ITU frequency bands}}413 bytes (58 words) - 04:56, 14 March 2024
- Abnormal frequency and liquidity of faecal discharges.91 bytes (10 words) - 08:04, 7 September 2009
- Its operating frequency is in the [[EU-NATO-US frequency bands|NATO G Band]], between 4 and 6 GHz. The antenna is a [[passive electr462 bytes (67 words) - 17:56, 1 April 2024
- {{r|Frequency}} {{r|Frequency modulation}}463 bytes (55 words) - 07:41, 16 April 2010
- A part of the radio frequency spectrum between 3 and 30 Megahertz65 bytes (10 words) - 13:23, 11 December 2010
- ...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 ( '''''T2 KB (257 words) - 20:29, 21 July 2020
- <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
- <noinclude>{{Subpages}}</noinclude>U.S. Navy family of low-frequency analysis and recording (LOFAR) passive [[sonobuoy]]s121 bytes (16 words) - 00:04, 1 February 2011
- Technique for imposing information onto a electromagnetic signal of constant frequency -- the "carrier wave".145 bytes (18 words) - 13:09, 11 July 2009
- A simple test device to detect radio frequency oscillation in an electronic circuit.121 bytes (16 words) - 18:41, 30 September 2009
- ...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
- ...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 chann951 bytes (130 words) - 10:20, 8 April 2024
- A radio frequency exitation and receiving probe whose electronics are cooled to 15-25 degrees154 bytes (20 words) - 12:21, 8 November 2008
- Directional frequency analysis and recording (DIFAR) passive [[sonobuoy]] family built for the [[153 bytes (18 words) - 01:18, 1 February 2011
- ==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 head2 KB (288 words) - 13:04, 19 February 2022
- Perceived frequency of a sound or [[Tone (music)|musical tone]].100 bytes (13 words) - 17:46, 30 June 2012
- Frequency measurement - things that [[oscillate]] more than one million times a secon155 bytes (21 words) - 20:39, 5 January 2024
- '''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 modulati1 KB (187 words) - 16:18, 3 April 2024
- 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
- 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
- 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
- States that [[gene frequency]] remains constant across generations (no [[genetic drift]]) unless a force180 bytes (23 words) - 08:46, 13 August 2010
- ==Operating frequency tradeoffs== Satellites operating in the [[ITU Frequency Bands|Ultra-High Frequency (UHF)]] offer the advantage of simple receivers and antennas, with plausibl2 KB (255 words) - 10:05, 10 February 2023
- ...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
- ...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
- 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
- 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
- The asymptotic frequency of a subset of the natural numbers.97 bytes (13 words) - 17:36, 24 August 2009
- ...frequency bands|high frequency (HF)]] or [[ITU frequency bands| very high frequency (VHF)]].1 KB (230 words) - 20:22, 27 August 2008
- 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
- The range of [[frequency|frequencies]] that can be [[hearing|heard]] by a [[life|living]] [[organism174 bytes (23 words) - 02:43, 15 February 2012
- A physical medium, including a designated [[frequency]] and physical scope, of the [[electromagnetic spectrum]], over which multi192 bytes (23 words) - 19:32, 31 July 2008
- 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
- ...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=201224 bytes (33 words) - 21:42, 27 June 2012
- ...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
- ...[[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
- {{r|Frequency modulation}} {{r|Frequency synthesizer}}327 bytes (47 words) - 03:42, 3 March 2009
- {{r|Frequency modulation}} {{r|Frequency agility}}475 bytes (68 words) - 03:00, 3 March 2009
- {{r|Frequency modulation|FM}}63 bytes (8 words) - 08:46, 28 February 2010
- ...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. On1 KB (169 words) - 17:56, 1 April 2024
- ...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
- ...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
- 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
- For a repeating phenomenon such as a [[radio]] signal with a given [[frequency]], the wavelength is the length, in meters, of a single repetition181 bytes (27 words) - 12:58, 28 September 2008
- An [[interference]] between two [[sound]]s of slightly different [[frequency|frequencies]], perceived as periodic variations in volume whose rate is the233 bytes (29 words) - 05:45, 11 October 2009
- ...(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 bands2 KB (267 words) - 20:38, 20 November 2008
- ...uencies, possibly under the control of pseudo-random, network-synchronized frequency selection software249 bytes (29 words) - 23:46, 17 July 2008
- ...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 ima892 bytes (129 words) - 18:08, 1 April 2024
- 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
- *[[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 a2 KB (260 words) - 10:44, 8 April 2024
- ...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=h1 KB (200 words) - 12:47, 15 January 2024
- <noinclude>{{Subpages}}</noinclude>A form of [[frequency compensation]] used in an [[electronic amplifier]] to increase the stabilit216 bytes (31 words) - 09:09, 5 June 2011
- ...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
- ...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
- ...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
- ...]], and [[television]], the '''carrier wave''', also called the '''carrier frequency''', is the basic information-free [[electromagnetic wave]] onto which infor229 bytes (26 words) - 08:40, 11 December 2009
- ...(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 th2 KB (278 words) - 18:47, 3 April 2024
- ...ength of electromagnetic radiation or an apparent decrease in the observed frequency.229 bytes (32 words) - 00:01, 13 April 2011
- ...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
- ...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
- {{r|Frequency}} {{r|IEEE frequency bands}}2 KB (308 words) - 09:08, 19 April 2024
- :#Carrier frequency :#Information frequency2 KB (270 words) - 12:56, 22 September 2020
- Soviet [[EU-NATO-US frequency bands|D or E-band]] nodding height finding radar used with the [[S-75 Dvina215 bytes (29 words) - 06:56, 4 April 2024
- ...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
- ...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
- ...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
- ...form]] includes the [[software-defined radio]] not only to emulate a given frequency range and modulation, but encryption, medium-sharing technique for multiple307 bytes (39 words) - 19:47, 20 June 2009
- 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 standar3 KB (450 words) - 15:37, 8 April 2024
- ...oscopy]] — 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
- ...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
- ...se ideal properties include: independence from field strengths, direction, frequency, or polarization, and from temperature.357 bytes (48 words) - 15:48, 27 March 2011
- ..., 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
- ...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
- In [[multispectral scanning]], the number of discrete frequency (or equivalent) bands recorded in an individual pixel. Remember that relati393 bytes (54 words) - 14:52, 8 June 2010
- ...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
- ...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 a420 bytes (58 words) - 13:17, 22 August 2010
- ...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 soph2 KB (295 words) - 20:53, 24 September 2007
- ...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
- {{r|Frequency agility}}208 bytes (25 words) - 23:56, 13 August 2009
- {{r|IEEE frequency bands}}167 bytes (19 words) - 21:11, 8 March 2011
- ...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 plo309 bytes (48 words) - 20:30, 3 June 2011
- ...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 of361 bytes (56 words) - 10:19, 27 June 2012
- ...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 intelligence3 KB (372 words) - 10:35, 4 April 2024
- |chapter=Chapter 7: Frequency response of integrated circuits448 bytes (71 words) - 14:16, 24 May 2011
- ..., [[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
- ...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
- ...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 a511 bytes (67 words) - 14:54, 13 October 2010
- ...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
- ...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
- {{r|Fundamental frequency}}400 bytes (50 words) - 07:40, 10 November 2010
- {{r|Frequency agility}}404 bytes (52 words) - 21:37, 27 November 2010
- {{rpl|Frequency}}149 bytes (17 words) - 07:07, 24 September 2013
- ...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, ac3 KB (463 words) - 10:44, 8 April 2024
- '''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 conn2 KB (384 words) - 19:07, 2 February 2009
- {{r|Frequency band}} in [[signal theory]]389 bytes (60 words) - 10:11, 2 November 2014
- ...secure the transmission channel more than the information on it, such as [[frequency agility]], [[spread spectrum]], or both.546 bytes (75 words) - 13:10, 25 September 2008
- ...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 str4 KB (724 words) - 14:52, 2 October 2021
- {{r|Frequency}}493 bytes (65 words) - 09:44, 1 December 2010
- '''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 or3 KB (452 words) - 12:18, 8 February 2022
- ...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 w358 bytes (57 words) - 02:58, 3 March 2009
- {{r|Frequency}}532 bytes (70 words) - 07:07, 11 October 2009
- ...as a wavenumber of 20,000 cm<sup>-1</sup> or 20 kK. Photon energy and frequency are proportional to wavenumber: 10 kK corresponds to 1.24 eV. The wavevector(<math>k</math>), wavelength (<math>\lambda</math>), and frequency (<math>f</math>) are related:1 KB (239 words) - 22:14, 23 October 2020
- {{r|Frequency-division multiplexing}}454 bytes (47 words) - 14:03, 26 February 2010
- 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 a7 KB (1,077 words) - 11:05, 18 May 2009
- ===Planck's Law: Frequency=== Formulated in terms of frequency:4 KB (537 words) - 09:19, 11 September 2022
- {{r|Very-High-Frequency Omnidirectional Range}}503 bytes (63 words) - 06:26, 12 February 2009
- ...by, a typical member of a population...the terms [[probability]], relative frequency, and proportion are used synonymously."<ref name="isbn0471526290p1">{{cite623 bytes (86 words) - 12:57, 22 November 2011
- {{r|ITU frequency bands}}483 bytes (65 words) - 18:20, 11 January 2010
- {{r|Radio Frequency Identification}}465 bytes (59 words) - 15:31, 11 January 2010
- ...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 generated2 KB (269 words) - 17:02, 22 March 2024
- {{r|Frequency spectrum}}282 bytes (36 words) - 20:14, 11 September 2009
- ...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 is4 KB (516 words) - 10:42, 8 April 2024
- ...requency Bands|Very Low Frequency]] or [[ITU Frequency Bands|Extremely Low Frequency]] bands, which require extremely long antennas. Shore stations transmitting3 KB (486 words) - 09:10, 22 April 2024
- ..., 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.3 KB (399 words) - 18:08, 1 April 2024
- ...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.3 KB (421 words) - 07:01, 26 January 2009
- {{r|Frequency division multiple access}}506 bytes (60 words) - 11:41, 2 January 2014
- It operates in the [[ITU Frequency Bands|UHF frequency band]], and can have 16 channels preset. Using the JTRS Soldier Radio Wave2 KB (271 words) - 15:37, 8 April 2024
- ...''T'' is the global x-ray temperature determined from the spectral cut-off frequency3 KB (411 words) - 12:12, 24 May 2008
- ...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 bef656 bytes (95 words) - 10:05, 14 June 2008
- {{r|Frequency}}606 bytes (69 words) - 04:07, 15 February 2012
- {{r|Frequency agility}}697 bytes (85 words) - 11:30, 27 February 2010
- ...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 f3 KB (547 words) - 07:21, 24 December 2008
- **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.2 KB (274 words) - 23:58, 31 January 2011
- {{r|Frequency agility}}689 bytes (85 words) - 14:31, 22 March 2024
- ...frequency. A more subtle example of electronic conflict involves an enemy frequency, if one intelligence unit is gathering information from intercepting it, bu4 KB (607 words) - 16:22, 30 March 2024
- {{r|Frequency modulation}}755 bytes (99 words) - 14:21, 8 March 2024
- ...frequency appears higher, and if the observer and the source separate, the frequency appears lower. ...or an observer at a fixed location is {{nowrap|''λ / 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
- *A metrology overview from NIST: {{cite journal |title=Optical frequency/wavelength references |author=L Hollberg, CW Oates, G Wilpers |journal=J Ph672 bytes (93 words) - 13:50, 9 April 2011
- If the ground is highly absorptive of the radar frequency in use, it may not be possible to get an adequate measurement. Radar altime718 bytes (113 words) - 18:55, 2 February 2009
- ...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.11 KB (1,715 words) - 16:21, 24 October 2013
- ...type of encryption is trivial to [[cryptanalysis | cryptanalize]] using [[frequency analysis]].714 bytes (116 words) - 05:48, 8 April 2024
- {{r|Frequency analysis}}701 bytes (92 words) - 10:46, 5 January 2009
- ...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, disc978 bytes (125 words) - 17:09, 12 April 2011
- ...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
- .../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.10 KB (1,685 words) - 12:22, 14 November 2007
- ...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}}2 KB (343 words) - 10:27, 6 July 2012
- ...ncept of which being that they determine the [[amplitude]] of individual [[frequency|frequencies]] of interest in the spectrum of a complex signal. That signal793 bytes (115 words) - 20:48, 12 April 2011
- {{r|Frequency}}782 bytes (94 words) - 03:52, 15 February 2012
- ...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 the5 KB (799 words) - 16:23, 30 March 2024
- 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 expansion3 KB (362 words) - 08:44, 13 August 2010
- ...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 | auth3 KB (487 words) - 18:48, 25 March 2010
- {{r|Frequency modulation}}851 bytes (114 words) - 18:43, 11 January 2010
- 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>,3 KB (433 words) - 12:26, 21 February 2009
- 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 volume2 KB (309 words) - 16:23, 30 March 2024
- ...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.5 KB (691 words) - 16:24, 30 March 2024
- ...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.am944 bytes (130 words) - 18:45, 22 May 2011
- ...ding events result in a significant and measurable change in the resonance frequency.3 KB (343 words) - 02:04, 15 November 2013
- {{r|Frequency modulation||**}}1 KB (133 words) - 09:08, 19 April 2024
- ...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 pa1 KB (140 words) - 19:03, 13 June 2010
- ...ing of temperature, a so-called ''soft mode''.<ref name=Dove/> Because the frequency drops with temperature, a ferroelectric solid experiencing this vibration b3 KB (418 words) - 04:17, 19 September 2013
- ...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>{{citation6 KB (909 words) - 16:23, 30 March 2024
- ...he UHF range. Leased commercial satellite service for GBS uses the [[IEEE Frequency Bands|K<sub>u</sub> band]].3 KB (374 words) - 10:20, 8 April 2024
- ...=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 w1 KB (148 words) - 12:10, 6 June 2011
- ...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 them8 KB (1,290 words) - 02:21, 16 February 2010
- {{r|Frequency modulation}}1 KB (138 words) - 20:51, 11 January 2010
- ==Calculating Allele Frequency==4 KB (566 words) - 05:33, 15 September 2013
- Multiaccess media include wireless domains divided by [[radio]] frequency or other mechanism, as well as physical media such as coaxial cable, optica988 bytes (146 words) - 14:42, 14 September 2008
- ...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
- {{r|Frequency agility}}526 bytes (77 words) - 15:29, 26 July 2010
- {{r|EU-NATO-US frequency bands}}973 bytes (121 words) - 18:00, 1 April 2024
- ...[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|geos5 KB (664 words) - 10:20, 8 April 2024
- 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
- ...em, AUTODIN, as well as well-known radio communications such as the [[high-frequency]] [[single-sideband]] radio broadcast system of the [[Strategic Air Command1 KB (158 words) - 10:20, 8 April 2024
- ...probe®''' (Bruker, Inc.) or a '''Chiliprobe®''' (Varian, Inc.), is a radio frequency (typically 600-900 MHz) exitation and receiving probe in which the electron957 bytes (151 words) - 15:21, 2 August 2008
- ...e rays will be scattered and the scattered [[radiation]] will have smaller frequency (and longer wavelength) than the incident radiation. The change in waveleng853 bytes (129 words) - 19:40, 18 September 2021
- ...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 direc1 KB (152 words) - 19:21, 9 June 2010
- }} (Inverter circuits are used for [[variable-frequency drive|variable-frequency motor speed control]])2 KB (315 words) - 01:37, 19 November 2007
- ...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
- ...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. Sta5 KB (756 words) - 11:12, 24 August 2010
- | 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 pa4 KB (599 words) - 07:30, 18 March 2024
- ...the electromagnetic spectrum. Note that as wavelengths become shorter and frequency of wave oscillations increase, the propagated energy increases (expressed i1 KB (200 words) - 19:42, 19 July 2010
- {{r|Frequency}}1 KB (157 words) - 19:35, 11 January 2010
- {{r|Frequency agility}}1,016 bytes (146 words) - 08:46, 19 April 2024
- ...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 whi1 KB (188 words) - 12:40, 30 August 2009
- Electronically, it covers the 30-512 MHz frequency range, is compatible with SINCGARS ground and HAVE QUICK II air tactical c1 KB (150 words) - 18:08, 1 April 2024
- {{r|Frequency}}1 KB (182 words) - 18:27, 13 July 2012
- ...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 i3 KB (523 words) - 21:16, 22 July 2010
- 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 thi4 KB (502 words) - 14:34, 2 February 2023
- ...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]]s24 KB (3,933 words) - 02:20, 14 October 2013
- The frequency of reactive arthritis after an infection is estimated to be 0.6 to 3.1 case1 KB (167 words) - 09:43, 22 September 2010
- ...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 f4 KB (543 words) - 08:41, 21 January 2010
- ...frequency Δƒ/ƒ at two sound levels heard in rapid succession ''vs.'' frequency ƒ.<ref name=Seashore/>}}4 KB (684 words) - 08:44, 17 July 2012
- {{r|Radio Frequency Identification}}1 KB (165 words) - 05:56, 17 March 2024
- ...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
- ...NPs can be assigned a [[minor allele frequency]] — 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
- ...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
- {{r|Frequency}}1 KB (196 words) - 05:55, 3 April 2011
- In the [[Second World War]], the system of '''high frequency [[ITU frequency bands#HF|HF]] direction finding (DF), HF/DF''' (pronounced huff-duff) was c3 KB (476 words) - 06:04, 8 April 2024
- ...pplications as a semiconductor for applications requiring high power, high frequency or a large degree of chemical inertness. It is employed in high power [[Sch1 KB (184 words) - 13:38, 2 February 2011
- *Mark frequency, extreme discrete value of [[frequency-shift keying]]3 KB (491 words) - 15:53, 14 March 2008
- ...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
- ...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 payment3 KB (529 words) - 14:33, 12 November 2007
- ...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 S3 KB (448 words) - 17:34, 10 February 2024
- ...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.14 KB (2,165 words) - 09:35, 3 July 2011
- | title = Low-frequency fluctuations in solids: <math>1/f</math> noise2 KB (185 words) - 09:45, 18 February 2010
- ...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
- * [[Variable-frequency drive]]2 KB (160 words) - 01:36, 19 November 2007
- ...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
- ...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 Waveform13 KB (1,859 words) - 16:22, 30 March 2024
- ...ri/AUT31.HTM Works by Augustine in several languages, with concordance and frequency list]3 KB (381 words) - 19:19, 19 April 2024
- 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 stronger5 KB (727 words) - 10:44, 8 April 2024
- ...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 par4 KB (528 words) - 07:32, 18 March 2024
- 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 phases13 KB (2,027 words) - 06:48, 18 October 2013
- ...ing in the magnetic field with a characteristic frequency—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
- Electronically, it covers the entire military VHF/UHF frequency range, from 30 to 512 MHz, in line-of-sight (LOS), beyond-line-of-sight (BL1 KB (182 words) - 17:57, 1 April 2024
- RWRs differ in the signal type and frequency ranges of the signals they detect. The two basic types of signals are radar2 KB (249 words) - 07:34, 18 March 2024
- ...y packet-oriented transmission. 500 kHz radiotelegraphy, long the distress frequency monitored for [[SOS]] signals, is no longer part of the [[Global Maritime D2 KB (222 words) - 22:03, 17 January 2021
- ...of the photon emitted by NO<sub>2</sub><sup>*</sup>. Further, ν is the frequency of the emitted light; it is related to [[wavelength]] by2 KB (240 words) - 10:54, 7 May 2010
- ...lent time synchronization among the system components. If the system uses frequency agility, spread spectrum, or combination techniques of electronic protectio2 KB (255 words) - 16:21, 30 March 2024
- ...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 an7 KB (1,088 words) - 14:20, 1 December 2010
- ...t extensive research strongly suggests that its main mechanism is to block frequency-, use- and voltage-dependent neuronal sodium channels, and therefore limit2 KB (189 words) - 13:59, 25 June 2008
- ...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 in5 KB (814 words) - 10:02, 24 August 2010
- ...length]] increases, thereby causing an apparent decrease in the observed [[frequency]]. If the emitted radiation happens to be in the middle of the visible spec2 KB (252 words) - 21:58, 21 January 2022
- ...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 sporadic2 KB (238 words) - 17:17, 5 July 2008
- ...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. The4 KB (548 words) - 12:31, 22 March 2024
- ...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 prerequi2 KB (221 words) - 18:30, 25 October 2010
- ...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
- ...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
- ...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 analysis14 KB (2,151 words) - 07:29, 18 March 2024
- *Frequency hopping multiplexer1 KB (195 words) - 15:37, 8 April 2024