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Handsets
Digital Baseband
Analog Baseband
Radio Frequency
Power Management
Baseband Interface
VBAP
Signal Conditioning
Analog Cellular
Baseband Processors
for analog Cellular
TMS320C5X/LC5X
Cellular Terms
 Digital Signal Processing
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Analog Cellular Phones
AMPS
AMPS is the North American analog cellular phone standard. AMPS
stands for Advanced Mobile Phone System and was released by the
Telecommunications Industry Association (TIA) in 1983. AMPS later
became an official TIA standard in 1986.
AMPS is a Frequency Division Multiple Access (FDMA) cellular standard.
The specs are as follows:
- 832 channels per carrier in the 800 MHz range (1664 total
channels)
- 824 - 849 MHz reserved for mobile transmit
- 869 - 894 MHz reserved for mobile receive
Note: Carrier (A) assigned frequencies
Carrier (B) assigned frequencies
- Each radio channel has a bandwidth of 30 KHz
- Duplex separation: 45 MHz (Forward channel and corresponding
reverse channel are separated by 45 MHz)
- Channel modulation: FSK (Frequency shift keying)
- 21 dedicated control channels per carrier system. Control
channels are used for mobile registration, mobile paging, mobile
access, and mobile handoffs, I.E. non-conversational channels.
- No direct fax or data communication support. Can purchase
add-ons to handle fax and data communication support.
- Mobile units transmit at 0.6 and 3.0 watts
For further information, see:
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