GSM Specifications

GSM 900

Mobile to BTS (uplink): 890-915 Mhz.
BTS to Mobile(downlink): 935-960 Mhz.
Bandwidth : 2* 25 Mhz.


GSM 1800

Mobile to BTS (uplink): 1710-1785 Mhz.
BTS to Mobile(downlink): 1805-1880 Mhz.
Bandwidth : 2* 75 Mhz.



* Carrier Separation : 200 Khz.

* Duplex Distance : 45 Mhz.

* No. of RF carriers : 124.

* Access Method : TDMA/FDD.

* Modulation Method : GMSK.

* Modulation data rate : 270.833 Kbps.