irishrepublicanarmy's definitions

Forrest Gump

too see my misspelling

see forest gump

IrishRepublicanArmy cannot spell, but he writes the best definitions.

by IrishRepublicanArmy December 12, 2003

FCC

1) Idiots
2) Idiots
3) organization secretly owned by Clear Channel

i think he means "pirate radio"

by IrishRepublicanArmy February 14, 2004

doublespeak

the term comes from the George Orwell book 1984, by the way.

War is Peace
Freedom is Slavery
Ignorance is Strength

by IrishRepublicanArmy June 5, 2004

FM

FREQUENCY MODULATION

radio modulation techique where information (usally voice or music) is added to the signal and changed by varying the freqeuncy of the transmitter. FM is the most commonly used modulation for radio signals techneque above 30 MHz.

the term "FM" is also used to refer to the broadcast band from 88.1 to 107.9 MHz, using that same modulation mode.

FM signals have less static because changes in frequency do not pick up interferance that AM-modulated signals do.

by IrishRepublicanArmy October 17, 2003

ADF

Automatic Direction Finder
or
Automatic Direction Finding System

a navagation system used by aircraft and sea-going ships. It consists of one or more ground stations that transmit a signal in the 225 to 500 kHz (.225 to .500 MHz) range. Because of the low-frequnecy of these signals, their range is very good and not limited by the line-of-sight range of the VOR system. The recevier in the airplane/boat uses a loop antenna to "home-in" on the station. There is also a long-wire receiving antenna installed on many aircraft. Most ADF receivers can also recieve the AM broadcast band (530 to 1710 kHz) so pilots can also home in on powerful broadcast stations.

ADF signals should not be used in thunderstorms because the high amount of electro-magnetic interferance that lightening causes.

Many pilots can't even use the ADF system, which is a shame, becuase of better systems such as VOR and the GPS systems.

"In most of the third world, the ADF navigation system is the only way to go"

by IrishRepublicanArmy October 21, 2003

703

The area code for Northern Virginia

for more information about the NOVA area, look at theses definitions:
Fairfax County Public Schools
Virginia
NOVA
Chantilly High School
Fairfax High School

by IrishRepublicanArmy January 5, 2004

AFC

Automatic Frequency Control, a device used in FM recievers to prevent drift.

My DX-397 has an AFC.

by IrishrepublicanarmY January 1, 2004