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Thread: Collinear Questions.....

  1. #1
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    North Devon T-EGTE32
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    Collinear Questions.....

    At the moment my antenna is indoors, but I'm planning to put it outside......2 questions, firstly if I put it inside a piece of plastic overflow pipe for protection, the range seems to be almost halved even with the antenna in the same spot....any ideas? Also, I already have a homebase cb antenna outside, how close can I put the collinear, if I use a 90 degree pole from the upright wall mounted pole used for the cb?
    Ta......Jon.......

  2. #2
    First officer
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    Aldershot, Hampshire. UK
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    Quote Originally Posted by GBHgpJON View Post
    At the moment my antenna is indoors, but I'm planning to put it outside......2 questions, firstly if I put it inside a piece of plastic overflow pipe for protection, the range seems to be almost halved even with the antenna in the same spot....any ideas? Also, I already have a homebase cb antenna outside, how close can I put the collinear, if I use a 90 degree pole from the upright wall mounted pole used for the cb?
    Ta......Jon.......
    The plastic that your overflow pipe is made from probably has carbon or metallic fillers, try cutting a small section off and putting it in the microwave for 30 seconds (stand a small glass of water in there too to prevent any damage to your microwave) if the pipe gets warm (even a little bit) it is not suitable for RF.
    Some white pipes are ok, but commercial antennas use glass fibre tubes.
    FR24 F-EGLF1, Blitzortung station 878, OGN Aldersht2, PilotAware PWAldersht, PlanePlotter M7.

  3. #3
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    North Devon T-EGTE32
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    Cheers for that, judging by the lack of range, I guess its not suitable. Useful information, thanks .........off to peruse the internet for glass fibre tube!

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