Skip to main content

IrishRepublicanArmy's definitions

Switchfoot

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

calibration

1) The process of comparing an instrument's output signal with reality. Instruments that measure solar energy tend to "drift", that is, their output signals do not mean the same thing from one time period to another. Because of this, they are periodically (annually or semi-annually) re-calibrated against more reliable instruments.

2) Adjusting a measuring instrument to make it accurate. The set of operations which establish, under specified conditions, the relationship between values indicated by a measuring instrument or measuring system and the corresponding values of a quantity realized by a reference standard.

3) The act of adjusting the color of one device relative to another, such as a monitor to a printer, or a scanner to a film recorder. Or, it may be the process of adjusting the color of one device to some established standard.
This radio needs some calibration.
by IrishRepublicanArmy December 26, 2003
mugGet the calibration mug.

SSB

AM radio transmission in which only one sideband is transmitted.
SSB is a highly efficent modulation mode and is widely used for HF communications.
by IrishRepublicanArmy January 24, 2004
mugGet the SSB 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 1, 2004
mugGet the hi hi mug.

darkstar

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

battleship

A fun game that teaches little children to play nice, as well as naval warfare tactics.
by IrishRepublicanArmy December 12, 2003
mugGet the battleship mug.

Share this definition

Sign in to vote

We'll email you a link to sign in instantly.

Or

Check your email

We sent a link to

Open your email