2006-08-10 02:40:04 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
CDMA by definition does not divide and allocate the frequency by user. All users are added together and broadcast on the carrier frequency.
It the responsibility of the receiver to pick the correct signal.
2006-08-10 02:59:44 · answer #1 · answered by cw 3 · 0⤊ 1⤋
For the US, you can find the information on the FCC website for 800 Mhz allocations. It's a bit involved, and not easy to use. You'll need to know the general part of the 800 MHz spectrum of interest. You'll need to know the general area of interest (called an Economic Area (EA)). The information on individual license holders is also brokent down by which auction they got it from.
The general breakdown is:
Private land mobile (806-824, 851-869, 896-901)
Domestic public land mobile (824-849, 869-894)
Aeronautical public correspondence-airphone (849-851, 894-896)
For other countries, it can be a bit more difficult
2006-08-10 20:00:43 · answer #2 · answered by WirelessBiz 2 · 0⤊ 0⤋
If you are talking about 800 Mhz, that is reserved for fire, police and emergency responders. If you are talking about 800 m band, that is like 400 kHz, and that is just under the AM band. That is generally for air traffic controllers, and VOR signalling. There are no commercial telecommunications in either band as far as I know.
2006-08-10 09:46:43 · answer #3 · answered by caffiene_freek 2 · 0⤊ 0⤋
According to whatever the FCC feels like that day âº
Doug
2006-08-10 09:52:22 · answer #4 · answered by doug_donaghue 7 · 0⤊ 0⤋