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Long range remote control wanted.

Discussion in 'Hobby Electronics' started by [email protected], Aug 22, 2006.

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  1. Guest

    Greetings group.
    Does anyone know where I could get a long range remote control.
    I need one that has at least 32 channels or can be modified.

    I have tried one from Elsema that is supposed to have a range of 6k,
    but I can only get it to work over 2k.

    Thanks,
    Russell.
     
  2. Line of sight?
     
  3. Guest


    Yes, line of sight.
    Russell.
     
  4. Guest

    I have just been able to get the Elsema remote to work for a distance
    of 3.3k.
    The aerials I was supplied did not have the cable shielding connected
    to the plug.
    Correcting this seems to have helped.

    I was not able to test it further than 3.3k line of sight.

    Russell
     
  5. Andy

    Andy Guest

    Hello Russell,

    I am going to take a guess and say you are experimenting with the
    151MHz products? Do you need an omni-directional antenna pattern or is
    your requiremnt point-to-point?
    If the latter, you could consider using a directional antenna with a
    few elements to give you a directional gain increase. Using one of
    these on each end would probably improve the range quite substantially.
    You could also try horizontal, rather than vertical, antenna
    polarisation. For a number of reasons, signal to noise ratio is often
    better using horizontal polarisation.
    An antenna for the 144MHz amateur band could probably be pressed into
    service if you wanted to experiment a bit.

    Andy
     
  6. Guest

    Thanks for the info. Andy.
    Yes I am using the 151Mhz products.
    I had considered a directional antenna, but did not know where I would
    find one.
    For this project I need two receivers that are not quite in the same
    direction from the transmitter.
    The transmitter could use an omni-directional antenna, and the two
    receivers
    could use a directional antenna.
    Your comment about horizontal polarization is very interesting, I will
    keep
    it in mind.

    Thanks,
    Russell.
     
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