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- This topic has 2 replies, 1 voice, and was last updated 21 years ago by Sunil Kumar.
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Ahlam DamatiGuest
Hi,
I want to know why the GSM-900 bandwidth has a gap of 20 MHz between the uplink and downlink bands???
In other words, what will happen if the band extends from 890-960 for uplink and downlink without any unused frequencies???
Prabhakar vermaGuest
we use dedicated frequency band for uplink and downlink and to seperate them we use a guard band
Sunil KumarGuest
Hi,
It is 45 Mhz.
Rgds
Sunil
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