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Thread: Smallest reflector size for 1.3GHz helical?

  1. #1
    Pilot boopidoo's Avatar
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    Smallest reflector size for 1.3GHz helical?

    I'm building a 1280MHz helical and would like how small I can make the reflector? I would like to fit it in a case and the smaller the reflector the better. In the end I guess it's a matter of performance, of course, but where lies a good compromise?

    The length of the helical is not as critical as the reflector diameter/width.

    Any suggestions?

  2. #2
    Engineer for Jesus Christ IBCrazy's Avatar
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    Sorry I missed this. The minimum size is .8 Wavelengths in diameter before the sidelobes get out of hand. This is ~7.5".

    -Alex
    If it is broken, fix it. if it isn't broken, I'll soon fix that.

    videoaerialsystems.com - Performance video piloting

  3. #3
    Pilot boopidoo's Avatar
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    Thanks!

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