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GSM

  • This topic has 2 replies, 1 voice, and was last updated 18 years ago by Sunil Kumar.
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  • #34596 Reply
    Ahlam Damati
    Guest

    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???

    #34597 Reply
    Prabhakar verma
    Guest

    we use dedicated frequency band for uplink and downlink and to seperate them we use a guard band

    #34598 Reply
    Sunil Kumar
    Guest

    Hi,

    It is 45 Mhz.

    Rgds

    Sunil

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