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  • 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
  • ITU Frequency Bands
    #REDIRECT [[ITU frequency bands]]
    33 bytes (4 words) - 06:39, 21 May 2008
  • RFID
    #REDIRECT [[Radio Frequency Identification]]
    44 bytes (4 words) - 16:02, 3 February 2009
  • ITU Frequency bands
    #Redirect [[ITU frequency bands]]
    33 bytes (4 words) - 06:38, 21 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
  • High frequency
    #REDIRECT [[ITU frequency bands]]
    33 bytes (4 words) - 06:50, 19 November 2011
  • High-frequency
    #REDIRECT [[ITU frequency bands]]
    33 bytes (4 words) - 06:50, 19 November 2011
  • Radio-Frequency Identification
    #REDIRECT [[Radio Frequency Identification]]
    44 bytes (4 words) - 19:07, 2 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
  • 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
  • Probe/Definition
    A simple test device to detect radio frequency oscillation in an electronic circuit.
    121 bytes (16 words) - 18:41, 30 September 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
  • 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
  • SSQ-53/Definition
    Directional frequency analysis and recording (DIFAR) passive [[sonobuoy]] family built for the [[
    153 bytes (18 words) - 01:18, 1 February 2011
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
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