UHF/VHF Automatic Direction Finding (U/V ADF): An Automatic Direction Finder that determines relative bearing to a transmitter to which it is tuned, in either the UHF band or VHF band.
UHF. See ultra-high frequency.
Ultra-high frequency (UHF). The range of electromagnetic frequencies between 962 MHz and 1213 MHz.
UHF: Ultra-High Frequency. Radio frequencies in the 300-3,000 MHz band.
UM: Unaccompanied Minor. Underage passenger (typically 5-15 years old) travelling without a parent, guardian or trusted adult.
UHF
Ultra High Frequencies (300 MHz-30 GHz)
UHF/VHF AUTOMATIC DIRECTIONFINDING (U/V ADF)
An Automatic Direction Finder that determines relative bearing to a transmitter to which it is tuned, in either the UHF band or VHF band; ...
UHF-
(See ULTRAHIGH FREQUENCY.)
ULTRAHIGH FREQUENCY- The frequency band between 300 and 3,000 mHz. The bank of radio frequencies used for military air/ground voice communications.
UHF radio.
UTC
Coordinated Universal Time (abbreviated as UTC, and therefore often spelled out as Universal Time Coordinated and sometimes as Universal Coordinated Time) is the standard time common to every place in the world.
TACAN - TACtical Aid to Navigation - a ground based military UHF navigation aid
Take - Common term for the results of photo recon, Elint or Sigint missions
TCT - Time critical targeting ...
UHF is military, VHF is civil and one doesn't always hear the other
ATC talking to military will be like your hearing one side of a phone conversation
Situation is similar when ATC controller is using both local and ground radio ...
An L/MF or UHF radio beacon transmitting nondirectional signals whereby the pilot of an aircraft equipped with direction finding equipment can determine his bearing to or from the radio beacon and "home" on or track to or from the station.
Uniform - Reference to UHF Frequency Band
UHF - Ultra High Frequency
UNICOM - Universal Communication
UTC - Universal Co-ordinated Time ...
In the mid 1930s, technology changes enabled navigation via radio beacon signals, and in May 1941, the Civil Aeronautics Administration (CAA) approved an ultrahigh-frequency (UHF) radio range for scheduled airline navigation.
D & D - Distress & Diversion Cells at Air Traffic Control Centres. RAF units which provide a 24 hour listening watch on VHF and UHF emergency frequencies and can locate and assist pilots who are lost or in emergency situations.
This is normally done via VHF/UHF radio, but there may be special cases where other processes are used. Most aircraft and airside vehicles have radios.
 See also: Aircraft, Aviation, Pilot, Service, Landing
  
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