Men At Work

1) An awesome 90s Australian band

2) Signs you see everywhere at work zones, even though women are working also.
by IrishRepublicanArmy May 30, 2004
mugGet the Men At Work mug.

Switchfoot

good Christian rock band, probably one of my favorites.
by IrishREPUBLICANArmy May 31, 2004
mugGet the Switchfoot mug.

sine wave

a periodic oscillation, as simple harmonic motion, having the same geometric representation as a sine function.
by irishrepublicanarmy January 02, 2004
mugGet the sine wave mug.

Morse Code

A communications system consisting of letters coded into dots and dashes, and used in radiotelegraph systems. (usally HF systems), and its fun to jam freeband stations with this stuff.
I jammed a pirate radio station with "HELLO HELLO I HATE YOU" in morse code over and over again.
by IrishRepublicanArmy January 27, 2004
mugGet the Morse Code mug.

hi hi

radio term

ha ha (laughter)

"hi hi" is the Morse equivalent of a laugh as in Morse it sounds like someone chuckling ("hehhehhehheh hehheh"). That is ditditditdit dit dit --- or dot dot dot dot dot dot. You really have to listen to it sent in Morse to appreciate its laugh like sound. It is most commonly used in CW (Morse Code), but has carried over to voice as well. Many CW expressions have carried over to voice -- such as 73 (Best Regards) and 88 (love and Kisses), etc. The origin probably dates back before radio to the telegraph days. And since Hams used Morse long before voice became practical-- the sound of the Morse characters HI HI was used to resemble a laugh sound. In some sense it is equivalent of a smiley. It's onomatopoeic -- that is the naming of a thing or action by a vocal imitation of the sound associated with it (as buzz, hiss) The definitive answer might be found in the "Dodge's The Telegraph Instructor Manual" circa 1850 to 1900. However, I have never been able to find a copy of this document. Wish I could as it would help to see the transitions from telegraph to radio usage.
hi hi om 73 de w2hht
by IrishRepublicanArmy January 01, 2004
mugGet the hi hi mug.

Dapper Dan

USAF radio code for command post or any other station that somewhat has command over something. Not used in UHF communications band. It is mostly the VHF tactical communications band (30 to 50 MHz)
Dapper Dan, this is alpha six, we have the enemy engaged.
by IrishRepublicanArmy November 07, 2003
mugGet the Dapper Dan mug.

darkstar

also a USAF callsign for Area 51
by IrishRepublicanArmy October 13, 2003
mugGet the darkstar mug.