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irishrepublicanarmy's definitions

protestor

Those ignorant protestors where blocking traffic again.
by IrishRepublicanArmy November 18, 2003
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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
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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
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WTOP

A news radio station that calls themself's a network. The fact that they have only three transmitters.
WTOP-AM: 1500.0 kHz
WXTR-AM: 820.0 kHz
WTOP-FM: 107.7 MHz
by IrishRepublicanArmy November 28, 2003
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base loading

A loading coil at the bottom of an antenna to achieve a lower resonant frequency.
The CB antenna i use for freeband 27 MHz operations uses a base loading coil to lower the frequency to the 27 MHz band.
by IrishRepublicanArmy January 1, 2004
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freezing rain

Freezing rain occurs when the tempurature in the cloud and directly below the cloud are above freezing (32 degrees F), and the ground or surfaces that the rain hits are below 32 degrees. The result is big enough to shut the Washington DC metro area down for a few days.
We had freezing rain last night, so they cancelled school for a week.
by IrishRepublicanArmy December 4, 2003
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GSM

Global System for Mobile communications.

The most common digital cellular system in the world. GSM is used all over Europe, plus many countries in the Middle East, Asia, Africa, South America, Australia, and North America. GSM's air interface is based on narrowband TDMA technology, where available frequency bands are divided into time slots, with each user having access to one time slot at regular intervals. Narrow band TDMA allows eight simultaneous communications on a single radio multiplexor and is designed to support 16 half-rate channels. GSM also is the only technology that provides incoming and outgoing data services, such as email, fax, and internet surfing. GSM makes use of a SIM card that allows memory portability between dumb GSM phones.
The GSM system allowed for both internet surfing and digital voice communications over 1900 MHz radio networks.
by IrishrepublicanArmy January 24, 2004
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