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State the range of frequency access method and modulation type used in AMPS & GSM.

written 5.9 years ago by teamques10 ★ 68k

•   modified 2.9 years ago

mobile communication

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written 5.8 years ago by teamques10 ★ 68k

For GSM:

Frequency: Reverse Channel Frequency 890-915MHz, Forward Channel

Frequency 935-960MHz

Access method: TDMA

Modulation: 0.3 GMSK

For AMPS:

Frequency: Reverse Channel Frequency 824-849 MHz, Forward Channel

Frequency 869-894 MHz

Access method: TDMA, FDMA

Modulation: FM modulation

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