Global Positioning System
Complex network of satellites that transmit signals to ground receviers in cars, boats, airplanes (see also VOR). The GPS receiver uses the signals from the satellites (which are over 15,000 miles away!) and uses them to find your location, anywhere in the world, with incredable accuracy.
Complex network of satellites that transmit signals to ground receviers in cars, boats, airplanes (see also VOR). The GPS receiver uses the signals from the satellites (which are over 15,000 miles away!) and uses them to find your location, anywhere in the world, with incredable accuracy.
by IrishRepublicanArmy October 15, 2003
by iRishRepublicanaRmy January 02, 2004
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 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
The range of radio frequencies that are assigned to police departments:
and here they are:
the police bands are shared with fire/public safety bands in the 44.62 to 46.02 MHz band, the 153.74 to 156.24 MHz band, and the 453, 460, and 851.0125 to 868.9875 MHz band. Specific police allocations very from city to city and the UHF-T band, 470 to 512 MHz is also used in large cities such as LA, New York and others.
VHF:
037.0200 to 037.4200 MHz
037.9000 to 037.9800 MHz
039.0200 to 039.9800 MHz
042.0200 to 042.9400 MHz
044.6200 to 046.0200 MHz
153.7400 to 156.2400 MHz
158.7300 to 159.2100 MHz
UHF:
453.0000 to 453.9875 MHz
460.0000 to 460.4375 MHz
851.0125 to 868.9875 MHz
and here they are:
the police bands are shared with fire/public safety bands in the 44.62 to 46.02 MHz band, the 153.74 to 156.24 MHz band, and the 453, 460, and 851.0125 to 868.9875 MHz band. Specific police allocations very from city to city and the UHF-T band, 470 to 512 MHz is also used in large cities such as LA, New York and others.
VHF:
037.0200 to 037.4200 MHz
037.9000 to 037.9800 MHz
039.0200 to 039.9800 MHz
042.0200 to 042.9400 MHz
044.6200 to 046.0200 MHz
153.7400 to 156.2400 MHz
158.7300 to 159.2100 MHz
UHF:
453.0000 to 453.9875 MHz
460.0000 to 460.4375 MHz
851.0125 to 868.9875 MHz
by IrishRepublicanArmy November 07, 2003
Lucky Charms would be the breakfast of champions..
by IrishRepublicanArmy May 27, 2004
by IrishRepublicanArmy March 08, 2004
by IrishRepublicanArmy November 27, 2003