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
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T-3 line

I wish i could have a T3 line.
by IrishRepublicanArmy December 29, 2003
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glycerine

1) a song by Bush
2) An food additive used to retain moisture and to keep marshmallows and candies soft.
3) Secondary product of the alcoholic fermentation. One of the main elements that gives body and smoothness to the wines.
4) a sweet syrupy trihydroxy alcohol obtained by saponification of fats and oils
Download the song "glycerine" by bush...it kicks ass.
by IRISHREPUBLICANARMY December 31, 2003
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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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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
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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
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blue chip

A high-quality, relatively low-risk investment; the term usually refers to stocks of large, well-established companies that have performed well over a long period.
I just put $500 on some good GE blue chip stock.
by IrishRepublicanArmy February 11, 2004
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