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signal lev

Viewing 5 posts - 1 through 5 (of 5 total)
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  • 30th November 2013 at 20:02 #69368
    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?

    30th November 2013 at 20:31 #69369
    RNO
    Guest

    Dear Pix,
    you help please

    1st December 2013 at 08:34 #69370
    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

    1st December 2013 at 13:37 #69371
    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

    1st December 2013 at 13:39 #69372
    RNO
    Guest

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

    Thank you for help

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Viewing 5 posts - 1 through 5 (of 5 total)
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