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

Emergency Frequencies

Here are some common emergency frequencies:

(in MHz)


000.5000 International Distress (CW)
002.1820 International Distress
002.6700 Calling to US Coast Guard
004.1250 Calling/Distress
006.2155 Calling/Distress
008.2570 Calling/Distress
012.3820 Calling/Distress
016.5220 Calling/Distress
027.0650 CB channel 9, emergency
034.9000 Military Low Band Calling
121.5000 International Distress
156.8000 International Distress
243.0000 International Distress

Monitor 2.182 MHz!

by IrishRepublicanArmy December 21, 2003

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

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

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

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

Agent Orange

orginally classified as a "defoliant" but the US Government found out that it is better at killing VC soliders and giving Americans prostate cancer.

Between 1965 and 1970, the United States dropped more then 50,000 tons of Agent Orange on Vietnam.

by IrishRepublicanArmy March 03, 2004