In principle the GSM system can be implemented in any frequency band. However there are several bands where GSM terminals are, or will shortly be available. Furthermore, GSM terminals may incorporate one or more of the GSM frequency bands listed below to facilitate roaming on a global basis.
| Frequency |
Range |
| GSM400 |
450.4 - 457.6 MHz paired with 460.4 - 467.6 MHz
or
478.8 - 486 MHz paired with 488.8 - 496 MHz
|
| GSM
850 |
824
- 849 MHz paired with 869 - 894 MHz
|
| GSM900 |
880
- 915 MHz paired with 925 - 960 MHz
|
| GSM1800 |
1710
- 1785 MHz paired with 1805 - 1880 MHz
|
| GSM1900 |
1850 - 1910 MHz paired with 1930 - 1990 MHz |
|
Third-Generation (3G) Frequency Range:
|
Base transmit (BTx) 2110 - 2170 MHz
Mobile transmit (MTx) 1920 - 1980 MHz
BTx / MTx In TDD (Time Division Duplex) 1900 - 1920 MHz
|
In the above bands mobile stations transmit in the lower
frequency sub-band and base stations transmit in the higher
frequency sub-band.
