CB Radio

Citizen's Band radio service:

radio frequency range, worldwide service:
26.965 to 27.405 MHz

still used all across the USA by truckers for the avoidance of police officers cops and in the rest of the world by terrorists and FARC

Channel 9- international emergency channel

Channel 19-international calling/trucker channel
"Breaker Breaker one-niner, this is Wohn Jayne, we got smokey on your tail and a beaver in a flop top at your 1 o'clock"
by IrishRepublicanArmy October 28, 2003
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EPIRB

Emergency Position Indicating Radio Beacon

The EPRIB (or "e-piryb") is pretty much an uber-ELT that transmits a radio signal on a frequency somewhere around 406 MHz. This signal contains information regarding the location of the signal (usally a downed aircraft or ship in distress). Satellites (known as SARSAT pick up this radio signal (as well as ELT signals) and relay this information to centers like the AFRCC. Search and Rescue is then dispatched to search and rescue agencies such as The Civil Air Patrol and Coast Guard.
Because the captian of the sinking fishing boat had bought an EPIRB for his boat, the Coast Guard was able to find and rescue him quickly.
by IrishRepublicanArmy January 27, 2004
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SWR

Standing Wave Ratio, a measure of how much radio energy sent into an antenna system is being reflected back to the transmitter
Oh crap! this stupid tuner keeps giving me a 3 to 1 SWR!!!!
by IrishRepublicanArmy January 01, 2004
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Saint Patrick's Day

one of the better holidays, where people who aren't even irish pretend to be, and everyone gets drunk.
On Saint Patrick's Day, we all wore green hats and drank whiskey
by IrishRepublicanArmy March 08, 2004
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AM

Amplitude Modulation

a way of applying information (voice or music) to a radio signal, beaten by SSB and then FM.

also: the old broadcast band from 530 to 1710 kHz.
"nobody listens to AM anymore"
by IrishRepublicanArmy October 12, 2003
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radar mile

The time required for a radar pulse to travel 1 mile (~1.6 km) to an object, i.e., to a target; reflect; and return to the receiver. Note: A radar statute mile is approximately 10.8 ms (microseconds); a radar nautical mile is approximately 12.4 s. The time for any other radar unit distance is readily determined, such as the radar meter or the radar kilometer. NTIA
I listen to propagation mapping radar on the 27 MHz freeband.
by IrishRepublicanArmy January 24, 2004
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APCO P-25

New digital modulation type, labelled as "APCO Project-25" P-25 pretty much is the same modulation that cell phones use. P-25 is supposed to give better voice quality, but there really is no differance. Plus I need to buy a new radio scanner now.
There are two types of P-25, 3,600 baud and 7,200 baud speeds.
by IrishRepublicanArmy December 10, 2003
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