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difference between gsm 900 and gsm 1800
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sorang363



Joined: 04 Jun 2007
Posts: 3
Post09 Jun 2007 9:49   

difference between gsm 900 and gsm 1800
I would like to know the major differences between gsm 900 and gsm 1800 which determines the design parameters for both the networks?[/b]
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Post09 Jun 2007 9:49   

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ibrahimsayed



Joined: 06 Feb 2007
Posts: 22
Helped: 5
Post09 Jun 2007 12:55   

Re: difference between gsm 900 and gsm 1800
Dear sorang363

The main difference between GSM900 and GSM 1800 is the band because each one has different band as follows:
GSM900: 890MHz---->915MHz uplink 935MHz----->960MHz downlink
GSM1800: 1710MHz---->1785MHz uplink 1805MHz------>1880MHz downlink

So, each one has differnet band noting that GSM1800 has bandwidth that is three times more than GSM900(75MHz for GSM1800 while 25MHZ for GSM900)
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urwelcome



Joined: 12 Apr 2007
Posts: 86
Helped: 6
Post09 Jun 2007 16:33   

Re: difference between gsm 900 and gsm 1800
Major difference is from Operatorīs point of view because as you move from low frequency you can accommodate more and more users and can offer higher data rates as well..

Cell size is lower as compared to GSM at same transmit power.

Regards,
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