IrishRepublicanArmy's definitions

oscilloscope

A test instrument that shows a picture of electrical waveforms by means of a cathode ray tube. An oscilloscope is calibrated so one can measure the instantaneous values and waveforms of electrical signals that are changing rapidly or varying as a function of voltage or time. Also known as a Scope.

I use my oscilloscope to measure the waveforms of my 27 MHz band jamming transmitter.

by IrishRepublicanArmy January 2, 2004

freeband

The term "freeband" pretty much refers to the 25.1000 MHz (25100.0 kHz) to 28.0000 MHz (28000.0 kHz) band, although people do operate "freeband" above those ranges, and into the 10-meter ham radio band (which is REALLY illegal). Freeband comes from the 26.9650 to 27.4050 MHz CB radio band. Because of heavy use of this band al around the world (in all modes, AM, SSB, FM). People started to modify thier CB radios to operate above or below (usally above, in the 27.4150 to 28.775 MHz range) the normal CB band. Really, this band has very little users, the military and government have a few channels, and 28.000 to 29.700 is ham radio, and there are a few channels allocated to the Forest Products Radio Service/Business Radio Pool.

The most common modulation mode is SSB.

The international calling frequency is 27.555 MHz (27555.0 kHz)

The DX-949 is a common freeband radio.

by IrishRepublicanArmy December 20, 2003

SOS

SOS really doesn't stand for anything, as any radio operator will tell you,

it is simply "SOS" becuase the letters S and O are very easy to understand under conditions of high interferance.

so stop saying "Save our whatever"

SOS, SOS, Titanic

by IrishRepublicanArmy October 28, 2003

MHz

Pronunciated: "Megahertz" not "M.H.Z."

Megahertz means 1000 kilohertz (kHz) and kilohertz means 1000 Hz (cycles per second)

1 MHz = 1000 kHz = 1,000,000 Hz

Wow, sense I listen to DC101, who has a transmitter on 101.1 MHz, thats 101,100 kHz, which is 101,100,000 Hz (cycles per second)

by IrishRepublicanArmy December 21, 2003

VFW

Veterans of Foreign Wars

young people these days have no respect for what thier fathers and grandfathers have done to protect this great nation.

by irishrepublicanarmy January 2, 2004

cuban number station

It is not known exactly what they are there, but its pretty much transmitted enigma in CW mode and then a bunch of numbers (in Spanish) in AM mode. It sounds like a female computer voice.

Cuban number stations can be monitored all across North America.

CUBAN NUMBER STATION COMMON JAMMING FREQUENCIES:

3060 (very common on the 6.6 MHz pirate radio band also)
3090
3292 6867 7648 8790 11215
3410 6872 7682 8873 11468
3444 6888 7726 8980 12144
3926 6890 7743 8992 13373
40176892 7755 9120 13419
4020 6920 7845 9140 14180
4027 6933 7860 9237 14736
4174 6935 7887 9251 14770
4601 6983 7890 9255 14825
4610 6953 8010 9330 17425
4328 6942 8018 9925 17520
4479 6768 6995 8066 10125 18035
5087 6778 7425 8126 10180 18434
5118 6787 7435 8136 10270 20316
5135 6797 7480 8150 10345 21865
5407 6800 7482 8165 10510
5415 6825 7520 8186 10713
5417 6840 7525 8240 10865
5420 6856 7580 8380 11125

by IrishRepublicanArmy December 10, 2003

holding pattern

The term applied to the dogfight in progress over any radio facility serving a terminal airport.

ATC: Cessna 78 Romeo, enter holding pattern

Me: Oh crap

by IrishRepublicanArmy December 22, 2003