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RX Diversity Alarm

  • This topic has 63 replies, 1 voice, and was last updated 3 years ago by hh.
Viewing 15 posts - 1 through 15 (of 64 total)
  • Author
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  • #49048 Reply
    Das
    Guest

    I am facing a lots of RX diversity loss alarm. I already checked the feeder, it is ok. TRU is also OK. What can be the other reason for this alarm? What is supervision measurement value?

    #49049 Reply
    aso
    Guest

    dear
    you check for VSWR from the bottom of antenna ?

    #49050 Reply
    patrick.fr
    Guest

    tell me exactly the name of alarm and its number?

    #49051 Reply
    emre
    Guest

    which freq ? 900 1800

    if 900 MHz you need to check distance from anttennas at same sector
    (must be 2 lambda lenght)

    #49052 Reply
    Navdeep singh
    Guest

    hi das,

    please check ur loose connectors of RX and TX at BTS and then you can go for the next step i.e VSWR
    it should be not more than 1.5.you can check it with your OMT software.

    #49053 Reply
    Assa
    Guest

    Hi, also check if there is a correct connection of BTS and antennas. Maybe some fiders are mixed up. So you don’t have any diversity on RX.

    #49054 Reply
    Geet Mukhra
    Guest

    Hi,
    Check ur CXU or splitter as it is used for splitting RX .Sometimes this port gets faulty.Replace it and then check…..assuming u hav checked everything else.

    #49055 Reply
    aman
    Guest

    tell me why the diversity alarms are arrise in two sectors

    #49056 Reply
    aman
    Guest

    tell me about vswr probem how to resolve

    #49057 Reply
    Rex
    Guest

    Hi Das,
    could be antenna feeder,RX-TX cables between TRE and combiner or combiner itself.

    #49058 Reply
    shirish
    Guest

    i need diversity alaram details for EVDO

    #49059 Reply
    Ed
    Guest

    Hi,

    Try the following suggestions earlier posted. They are all related to RX diversity alarm.

    Also possible cause for Rx diversity alarm is the mismatched / or losses on the RX received between the two diversities.

    What equipment are u using? and what type of diversity if any(SPACE or Polarization)? Try to check if there is diversity on the site.

    For Ericsson Network try to check the diversity if its AB. If then, try to set it to A only or to B only which ever good performance will be achieved for isolation purposes.

    #49060 Reply
    Jamil
    Guest

    Try to go to OMT check the display fault RUs and see where is the fault which sector and what is the Rbs 2206-2116

    #49061 Reply
    Maxim
    Guest

    if u are RX diversity alarm, try to switch off and switch on 5 min after ur RBS and the alarm creased. Thanks

    #49062 Reply
    Achmad Fatoni
    Guest

    what causes the RX diversity lost ?

Viewing 15 posts - 1 through 15 (of 64 total)
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