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Thread: Excessive TCH interference

  1. #1
    Junior Member Reputation: 10
    Join Date
    2018-08-19
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    Default Excessive TCH interference

    Hello,

    We are facing 7744 Excessive TCH interference & 7745 Excessive TCH interference in several TRx during peak hours. Please suggest and support to resolve this issue.

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  3. #2
    Junior Member Reputation: 15
    Join Date
    2017-03-30
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    Default Re: Excessive TCH interference

    Blaxian,

    How do you observe the interference on the TCH? Are you frequency hopping? What is the size of the hopping pool and how many TRx are in the pool?

  4. #3
    Member Reputation: 79
    Join Date
    2013-09-12
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    Default Re: Excessive TCH interference

    Hi, is it shared antenna 2G/3G scenario? If so i suggest you to check for alarms (usually RxLev) on 3G and invetigate for Passive Intermodulation (PIM measurements recommended). hope it helpsbr//

  5. #4
    Senior Member Reputation: 490
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    2008-08-14
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    Default Re: Excessive TCH interference

    Quote Originally Posted by Blaxian View Post
    Hello,

    We are facing 7744 Excessive TCH interference & 7745 Excessive TCH interference in several TRx during peak hours. Please suggest and support to resolve this issue.
    are they located in same geographic area or randomly distributed

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