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signal lev

Viewing 5 posts - 1 through 5 (of 5 total)
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  • #69368 Reply
    RNO
    Guest

    I have high call drop on the cell has 4 TRXs (NSN) and i have found that

    TRX NO Main signal Diversity signal
    1 -110dbm -80 dbm
    2 -80dbm -110 dbm
    3 -110dbm -80dbm
    4 -80 dbm -110dbm

    what the problem?

    #69369 Reply
    RNO
    Guest

    Dear Pix,
    you help please

    #69370 Reply
    Pix
    Guest

    Hi RNO,

    I dno’t know what is the physical layout of your NSN bts.
    – How many sectors in this bts ?
    – How many antennas on the rooftop ?
    – How many base stations (2G, 3G, 4G, how many operators, etc) are sharing those antennas ?

    It looks like you are facing a mixed jumpers issue. This cell is sending its signal over two different sectors. Logically, another cell in this site should also face the same issue.

    What you have to do is un-tangle the jumpers between the BTS and the antenna feeders. -or if no jumpers, just untangle the feeders)

    Regards
    pix

    #69371 Reply
    RNO
    Guest

    Thank you Pix for your reply and explaining
    actually we have 4 sectors & 4 Antennas in the BTS
    4 TRXs for each cell.
    we have replaced the Convectors of feeders but the problem still

    #69372 Reply
    RNO
    Guest

    also I have unbalance in DL&UL
    DL-UL=-35dbm

    Thank you for help

Viewing 5 posts - 1 through 5 (of 5 total)
Reply To: signal lev
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