Results 1 to 3 of 3

Thread: Smallest reflector size for 1.3GHz helical?

  1. #1
    Forum Member
    Join Date
    Feb 2011

    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
    Forum Member
    Join Date
    Mar 2011
    Amherst, VA
    Sorry I missed this. The minimum size is .8 Wavelengths in diameter before the sidelobes get out of hand. This is ~7.5".

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

    [url][/url] - Performance video piloting

  3. #3
    Forum Member
    Join Date
    Feb 2011

Similar Threads

  1. Truncated cone reflector for Helical antennas.
    By Kondor-FPV in forum FPV Long Range
    Replies: 30
    Last Post: 24th August 2015, 05:57 AM
  2. Smallest portable Hero-friendly flying device
    By ProtoCrash in forum FIXED WING
    Replies: 10
    Last Post: 9th January 2013, 09:16 PM
  3. Replies: 43
    Last Post: 9th November 2012, 10:25 AM
  4. Parabolic Reflector for increasing 2.4 Ghz R/C range ...any downsides ??
    By khaled_abobakr in forum IFR - Video Link Discussion
    Replies: 10
    Last Post: 4th February 2012, 08:13 AM
  5. Smallest FPV setup? Good for 1/2 mile radius?
    By GreenAce92 in forum RC TECH
    Replies: 11
    Last Post: 19th September 2011, 11:24 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts