What is difference between 900mhz and 1800mhz?
It has been proven that 900 Mhz band has 30-40 per cent better coverage than 1800 Mhz band. To make up for this, mobile companies on 1800 Mhz have to invest more in setting up larger number of base stations to achieve the same coverage as in the 900 Mhz band.
How many carriers does GSM 900 have?
As mentioned earlier, in the GSM 900 system, the total available number of uplink and downlink carriers = 25 MHz/200 kHz = 125.
What is the GSM 900 frequency spectrum?
Frequency bands
| GSM band | ƒ (MHz) | Channel numbers |
|---|---|---|
| T-GSM-810 | 810 | dynamic |
| GSM-850 | 850 | 128–251 |
| P-GSM-900 | 900 | 1–124 |
| E-GSM-900 | 900 | 0–124, 975–1023 |
What is carrier spacing in GSM-900 DCS 1800?
GSM-900 and GSM-1800 are used in most of the world. GSM-900 uses 890 – 915 MHz to send information from the Mobile Station to the Base Transceiver Station (BTS) (This is the “uplink”) and 935 – 960 MHz for the other direction (downlink), providing 124 RF channels spaced at 200 kHz. Duplex spacing of 45 MHz is used.
What are the frequency bands in GSM-900 GSM 1800 and gsm1900?
GSM can operate in multiple frequency bands, including but not limited to the 900 MHz, 1800 MHz, 850 MHz and 1900 MHz bands. The 900 MHz band ranges from 880 to 960 MHz, and the 1800 MHz band ranges from 1710 to 1880 MHz. The 850 MHz band ranges from 824 to 894 MHz, and the 1900 MHz band ranges from 1850 to 1990 MHz.
What is GSM carrier frequency?
GSM-900 uses 890 – 915 MHz to send information from the Mobile Station to the Base Transceiver Station (BTS) (This is the “uplink”) and 935 – 960 MHz for the other direction (downlink), providing 124 RF channels spaced at 200 kHz. Duplex spacing of 45 MHz is used.