irishREPUBLICANarmy's definitions

foot warmer

CB radio slang for an illegal amplifier (usally a modified 10/12 meter ham radio amp.) which brings the 4W AM (12W SSB). output to something like 1000 watts or sometimes higher. As a result, the 26.965 to 27.405 MHz band is littered with stations jamming a single channel and not allowing anyone else to use it (AM does not have the "capture effect" that FM does.) because that person is using a "foot warmer" and it congests the frequency so much that it is unusable, and in turn, more people buy "foot warmers" to combat this interferance from distant stations, and thus the cycle continues.

If everyone who used illegal amplifiers was to stop using thier illegal equipment, range and interferance problems would lessen even for those who abandoned thier illegal equipment.

Dude! Hide your foot warmer, here comes uncle charlie!

Roger that, CRYSTAL PALACE BASE CONTROL has a foot warmer.

by IrishRepublicanArmy December 8, 2003

spread spectrum

A signal struc­turing tech­nique that employs direct se­quence, frequency hopping or a hybrid of these, which can be used for multiple access and/or multiple func­tions. This technique decreases the potential interfer­ence to other receivers while achieving privacy and increasing the immunity of spread spec­trum receivers to noise and interference. Spread spec­trum generally makes use of a sequential noise­‑like signal structure to spread the normally narrow­band informa­tion signal over a relatively wide band of frequencies. The receiver corre­lates the signals to retrieve the origi­nal informa­tion signal (NTIA)

Normal scanners cannot get spread spectrum transmissions.

by IRISHrepublicanARMY January 3, 2004

calibrate

To find calibre the (caliber) of; correlate readings of (instrument etc) with a standard or commonly accepted value.

I calibrated my HF reciever with the 10.0000 MHz WWV/WWVB frequency standard.

by IrishRepublicanArmy December 26, 2003

TDMA

Time Division Multiple Access


A method of digital wireless communications transmission allowing a large number of users to access (in sequence) a single radio frequency channel without interference by allocating unique time slots to each user within each channel. Rather than encoding bits of data like CDMA, each frequency is broken into time slots through which bits of data flow. Data can only flow in their assigned time slots.

Cellular (mobile) Phones use CDMA, TDMA, analog, or GSM for radio (voice) transmission as well as wireless internet connections.

by IrishrepublicanArmy January 24, 2004

Honda

Japanese engine manfacturing company that makes more then just cars. Their engines are very relible and well-built, however its nothing special to have one.

Your 2004 Honda Civic has the same specs as my 1995 Ford Contour (hazardmobile) with 103,000 miles on it, yet I would still beat you if we raced due to the drag produced by the 30 pounds of NOS stickers and the 20 pound inverted 747 wing on 3 foot stilts attacthed to the rear of your front-wheel-drive car.

My mom drives a 2001 Honda Accord V6 (proof that NOT ALL imports are 4-bangers, most of them are). It is fun to drive and everything, and looks pretty good, until you slap a sheet metal tube to the exhuast which makes it sound like the 2-stroke yamaha engine on my fishing boat and a 10 foot inverted wing which belongs on a commercial airliner.

I won a race in my Honda, a lawnmower race.

Having a small fuel-saving japanese car is great, until you destroy the engine parts and wheel geometery by 'trick' or 'ricing it out'.

by IrishRepublicanArmy May 24, 2004

AM

Amplitude Modulation

a way of applying information (voice or music) to a radio signal, beaten by SSB and then FM.

also: the old broadcast band from 530 to 1710 kHz.

"nobody listens to AM anymore"

by IrishRepublicanArmy October 12, 2003

VHF

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