by IRISHREPUBLICANARMY January 07, 2004
Translated from Latin, this means "under the rose" and is a term frequently used for surveillance but can also mean any type of undercover or discrete investigation. We provide sub rosa/surveillance services both to private parties and to commercial firms.
by irishrepublicanarmy December 31, 2003
by IrishRepublicanArmy May 19, 2004
An exclamation, from the 70s show Emergency.
It comes from the fire department dispatch guy that goes "Squad 51!"
It comes from the fire department dispatch guy that goes "Squad 51!"
by IrishRepublicanArmy November 28, 2003
World Geodetic System 1984. WGS 84 is an earth fixed global reference frame, including an earth model. It is used for GPS systems.
by IrishRepublicanArmy January 04, 2004
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.
by IrishRepublicanArmy January 02, 2004
A burst of noise (a.k.a. "static") heard after a FM radio transmission ends. The random static sound is actually the radio trying to decipher the ambient background noise into meaningful audio. Usually this noise is hidden from the listener with the squelch function on the radio. In typical squelch systems, the audio circuit is turned off if the radio isn't receiving a signal of a certain minimum signal strength. The squelch tail occurs when the transmission has just ended and the radio circuitry doesn't respond quite fast enough. This is remedied by systems like STE or Squelch Tail Elimination by Motorola which send a brief subaudible tone right before the end of the transmission so that the audio circuit turns off before the modulated signal ends. Creative use of CTCSS like turning off the tone generation circuit on a repeater before the repeater tail will work for radios using tone squelch on both transmit and receive.
by IrishRepublicanArmy December 20, 2003