by IrishRepublicanArmy May 19, 2004
Automatic Link Establishment (station)
In high-frequency (HF) radio, the capability of a station to make contact, or initiate a circuit, between itself and another specified radio station, without human intervention and usually under emergency conditions. ALE stations are generally computer-controlled.
In high-frequency (HF) radio, the capability of a station to make contact, or initiate a circuit, between itself and another specified radio station, without human intervention and usually under emergency conditions. ALE stations are generally computer-controlled.
by IrishRepublicanArmy January 24, 2004
by IrishRepublicanArmy January 24, 2004
by iRiShREPUBLICANarmy January 27, 2004
Very High Frequency
Omnidirectional
Range
a radio-navigation system that consists of ground stations transmitting continous signals within the frequency range of 108.0 to 117.95 MHz. mode of modulation is CW or AM.
The VOR system is used by both civilian and miltary aircraft in conjuction with the GPS and ADF (also known as NDB) radionavagtion systems. The receiver in the aircraft determines the bearing of the station in relation to the direction the aircraft is going. This information is used by the pilot to navagate the aircraft. The VOR system is used worldwide and is less suspectable to the magnetic interferance that the ADF/DME and LORAN systems are.
Omnidirectional
Range
a radio-navigation system that consists of ground stations transmitting continous signals within the frequency range of 108.0 to 117.95 MHz. mode of modulation is CW or AM.
The VOR system is used by both civilian and miltary aircraft in conjuction with the GPS and ADF (also known as NDB) radionavagtion systems. The receiver in the aircraft determines the bearing of the station in relation to the direction the aircraft is going. This information is used by the pilot to navagate the aircraft. The VOR system is used worldwide and is less suspectable to the magnetic interferance that the ADF/DME and LORAN systems are.
"Roger, Cessna Five Five Tango, Dulles VOR is on 114.3, advise control you have entered class B airspace."
by IrishRepublicanArmy October 15, 2003
A burst of noise (a.k.a. "static") heard after a FM radio transmission ends. The random static sound is actually the radio trying to decipher the ambient background noise into meaningful audio. Usually this noise is hidden from the listener with the squelch function on the radio. In typical squelch systems, the audio circuit is turned off if the radio isn't receiving a signal of a certain minimum signal strength. The squelch tail occurs when the transmission has just ended and the radio circuitry doesn't respond quite fast enough. This is remedied by systems like STE or Squelch Tail Elimination by Motorola which send a brief subaudible tone right before the end of the transmission so that the audio circuit turns off before the modulated signal ends. Creative use of CTCSS like turning off the tone generation circuit on a repeater before the repeater tail will work for radios using tone squelch on both transmit and receive.
by IrishRepublicanArmy December 20, 2003