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

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written 5.3 years ago by

teamques10 ★ 64k

• modified 2.3 years ago

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written 5.2 years ago by

teamques10 ★ 64k

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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