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RX Diversity Alarm

Viewing 15 posts - 1 through 15 (of 64 total)
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  • 2nd September 2007 at 13:54 #49048
    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?

    3rd September 2007 at 04:54 #49049
    aso
    Guest

    dear
    you check for VSWR from the bottom of antenna ?

    3rd September 2007 at 18:08 #49050
    patrick.fr
    Guest

    tell me exactly the name of alarm and its number?

    4th September 2007 at 14:01 #49051
    emre
    Guest

    which freq ? 900 1800

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

    6th September 2007 at 11:15 #49052
    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.

    13th September 2007 at 11:26 #49053
    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.

    19th September 2007 at 08:09 #49054
    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.

    18th March 2009 at 07:47 #49055
    aman
    Guest

    tell me why the diversity alarms are arrise in two sectors

    18th March 2009 at 07:54 #49056
    aman
    Guest

    tell me about vswr probem how to resolve

    19th March 2009 at 09:09 #49057
    Rex
    Guest

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

    22nd June 2009 at 06:14 #49058
    shirish
    Guest

    i need diversity alaram details for EVDO

    23rd June 2009 at 03:07 #49059
    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.

    23rd June 2009 at 20:26 #49060
    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

    24th June 2009 at 09:40 #49061
    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

    31st August 2009 at 08:42 #49062
    Achmad Fatoni
    Guest

    what causes the RX diversity lost ?

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