227 definitions by IrishrepublicanarmY

1) The Very High Frequency communcations band from 26.985 to 174 MHz or 30 to 300 MHz, the most popular local (less then 200 mile range) communication band

2) the VHF-AM civilian aircraft communcation band 118 to 137 MHz
see UHF
"Roger, we got you on VHF 122.9"
by IrishRepublicanArmy October 13, 2003
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 02, 2004
CQ
Calling any amateur radio station, may be sent in CW, phone or some digital modes. Directly translated from morse code, it means "calling all stations"
CQ CQ CQ de KR4MU
by IrishRepublicanArmy January 01, 2004
1) The identifying code letters or numbers of a radio or television transmitting station, assigned by a regulatory body. Also called call sign or call letters.

2) (military) code word for aircraft, ship, etc, used in radio communications.
Dark 87 this is Havoc 12, switch to 11175 and vector out to DZ.
by IRISHREPUBLICANARMY December 26, 2003
That portion of the ionosphere existing between approximately 160 and 400 km above the surface of the Earth, consisting of layers of increased free-electron density caused by the ionizing effect of solar radiation. Note 1: The F region reflects normal-incident frequencies at or below the critical frequency (approximately 10 MHz) and partially absorbs waves of higher frequency. Note 2: The F1 layer exists from about 160 to 250 km above the surface of the Earth and only during daylight hours. Though fairly regular in its characteristics, it is not observable everywhere or on all days. The principal reflecting layer during the summer for paths of 2,000 to 3,500 km is the F1 layer. The F1 layer has approxi­mately 5 ´ 105 e/cm3 (free electrons per cubic centi­meter) at noontime and minimum sunspot activity, and increases to roughly 2 ´ 106 e/cm3 during maxi­mum sunspot activity. The density falls off to below 104 e/cm3 at night. Note 3: The F1 layer merges into the F2 layer at night. Note 4: The F2 layer exists from about 250 to 400 km above the surface of the Earth. The F2 layer is the principal reflecting layer for HF communications during both day and night. The horizon-limited distance for one-hop F2 propagation is usually around 4,000 km. The F2 layer has about 106 e/cm3. However, variations are usually large, ir­reg­ular, and particularly pronounced during magnetic storms.
good thing there are like 10 people in the world who know what that means
by IRISHrepublicanARMY January 03, 2004
The company that makes my printer, and it's OK, I guess
At least my EPSON printer breaks less then the crappy HP one I had last time.
by IrishRepublicanArmy December 21, 2003
A fun game that teaches little children to play nice, as well as naval warfare tactics.
B-8!

You sunk my battleship!
by IrishRepublicanArmy December 12, 2003

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