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Thread: ASSET-wrong-Prediction-

  1. #1
    Member Reputation: 43
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    171


    Default ASSET-wrong-Prediction-

    DEAR EXPERTS,

    There are two filter in this project.
    In filter 1 path loss predictor works well

    But when i select filter 2 , in the window of Path loss predictor there shows nothing.No sites are shown there.

    and in site database, in filter 2, after pressing display, it shows the message:
    No Antenna is connected or Height data is not available.

    please see the jpeg attached.


    Antenna database i collect from katherein website.and select that antenna for these sites.Height data is also available.

    PLEASE HELP ME TO SOLVE THE PROBLEM..
    Last edited by Lesmana; 2010-03-30 at 07:49 PM

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  3. #2
    Senior Member Reputation: 690
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    Default

    when you know the site database is all correct and height data is avaiable for all the region, press global edit from sitedatabase window, select filter 2 and select use DTM heights.apply commit and recheck. that may help.

    BR
    db

  4. #3
    VIP Member Reputation: 1106
    Join Date
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    Default Dear friend

    Quote Originally Posted by alammasud View Post
    DEAR EXPERTS,

    There are two filter in this project.
    In filter 1 path loss predictor works well

    But when i select filter 2 , in the window of Path loss predictor there shows nothing.No sites are shown there.

    and in site database, in filter 2, after pressing display, it shows the message:
    No Antenna is connected or Height data is not available.

    please see the jpeg attached.


    Antenna database i collect from katherein website.and select that antenna for these sites.Height data is also available.

    PLEASE HELP ME TO SOLVE THE PROBLEM..
    you can add database of Antenna and add to your site can make prediction

    you can use simple Antenna for Asset

    you can enjoy
    Attached Files Attached Files
    We can share knowledge to all guy join with Wire Free Alliance.

    Many Thank,

    Best regards,

    TEMS_Engineer

  5. #4
    Senior Member Reputation: 740
    Join Date
    2009-11-20
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    341


    Default

    Make sure the sites in the filter have Antennas associated.
    Then click GLOBAL EDIT, COMMIT ALL and try again.

  6. #5
    Member Reputation: 43
    Join Date
    2008-12-07
    Posts
    171


    Lightbulb status of wrong prediction-got improvement

    THANKS TO DAVID, BLASTER & TEMS FOR UR VALUABLE SUGGESTIONS...


    By using global edit i redefine the antenna,prediction radius,hexagon radius,cell layer and others....then got some improvement....

    the path loss predictor is running now and can show the best server...But the prediction result is not accurate though i'm using a tuned model which is tested
    ok before 2 years for our local clutter.

    .......As per david i selected the DTM height also....


    The problem might be related with -
    propagation model / Antenna database / clutter-height data / or else.....


    Different parameter settings and coverage snapshots are attached here.
    In cell layer, PA output is fixed for all cells....
    the coverage snapshot comes EXACTLY what i attached....A SQUARE..



    SEE THE ATTACHED SNAPSHOTS AND SUGGEST TO SOLVE THE PROBLEM..


    THANKS.
    Last edited by Lesmana; 2010-08-27 at 07:34 AM

  7. #6
    Senior Member Reputation: 690
    Join Date
    2008-08-05
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    Default

    even the information is not quite enough, still it is seen that the output power used here seems to be too high , 80 Watts , what BTS is it?
    try using 43 dBm PA output and as for the square prediction run it zoomed out or dont select the option which says select display which selects the area displayed and dont predict beyond it.

    BR
    db

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