picket fencing

(Repeater Term) A condition experienced on VHF and above where a signal rapidly fluctuates in amplitude causing a sound akin to rubbing a stick on a picket fence. If a repeater user's signal isn't strong enough to maintain solid access to the machine's input (such as when operating from a vehicle passing beneath underpasses or through hilly terrain), the signal would be hard to copy because of a pronounced, rapid fluttery or choppy characteristic.

We can't copy you, you're picket fencing really badly.

by IrishRepublicanArmy January 01, 2004

PRC-77

the PRC doesn't stand for anything.

the PRC-77 (and the improved PRC-770) are military VHF FM transcievers, that have been used sence 1960, and are slowly being phased out because the US Army likes them.

Frequency Coverage:
30.0000 to 76.0000 MHz
channel spacing:
50 kHz
channels:
920
Power Output:
5 watts
Range:
10 miles on a bad day
5 miles when the VC are shooting at you
30 miles when you get back to base

PRC-77s are used as manpack radios (straped to the back of GIs and used for unit-to-unit communications), if you've ever seen the movie "Platoon", the PRC-77 is the radio that all the Americans are carrying on thier backs.
or they are installed as radios in Humvees and tanks. (i.e. all the antennas on military viecles are connected to PRC-77s.

widly copied by every NATO member, so all the good guys can talk to each other.

"Roger, get the PRC-77 on 41.75 and call HQ"

by IrishRepublicanArmy October 21, 2003

PSK31

A digital transmission mode -- Phase Shift keying with 31.25 baud rate

PSK31 is one of the better HF operating digital modes.

by IrishRepublicanArmy January 01, 2004

VX-150

see vertex for a better definition.

I use my VX-150 for Civil Air Patrol radio communications.

by IrishRepublicanArmy December 20, 2003

Air Traffic Control

A game played by airline pilots and air traffic controllers. The game has no rules, and neither side knows how it is played, but the goal is to prevent flights from arriving in time for passengers to make connecting flights.

Flying used to be fun, but its not with this air traffic control shit.

by IrishRepublicanArmy January 24, 2004

United States Postal Service

The Mafia in little white trucks.

and everyone thinks im crazy..

by iRiShREPUBLICANarmy January 27, 2004

RadioShack

RadioShack used to sell ham (amatuer) radio equipment, hence the term 'radio shack' for a ham radio operator's radio room.

Now they sell overpriced commerical electronic crap.

see nerd central

Radioshack has gone to the dogs.

by IrishRepublicanArmy November 16, 2003