Radio link aspects
The International Telecommunication Union (ITU), which manages the international allocation of radio spectrum (among many other functions), allocated the bands 890-915 MHz for the uplink (mobile station to base station) and 935-960 MHz for the downlink (base station to mobile station) for mobile networks in Europe. Since this range was already being used in the early 1980s by the analog systems of the day, the CEPT had the foresight to reserve the top 10 MHz of each band for the GSM network that was still being developed. Eventually, GSM will be allocated the entire 2x25 MHz bandwidth.
Cellular Radio frequencies around the world
| American Cellular | ||
| AMPS, N-AMPS, D-AMPS (IS-136) CDMA |
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| Narrowband | 901-941 MHz | |
| Broadband |
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| E-TACS | ||
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| GSM | ||
| GSM has three main frequency bands around the world: 900 MHz, 1800 MHz, and 1900 MHz. It all depends on the country. Other bands may be used in the future or may be in trial right now. |
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| 1800MHz | ||
| 1900 MHz. | ||
| JDC | ||
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GSM frequency spacing is 200Khz, AMPS is 30 Khz
American PCS/GSM/ Cellular frequencies
(A more specific view)