Adjustable Gamma match for mobile antennas

Discussion in 'CB Radio Forum' started by rabbiporkchop, Jun 27, 2016.

  1. handlebar

    handlebar Heavy Load Member

    Good advice. From 28.000 to 28.100 is restricted to non-voice operations, like Morse, radioteletype, weak signal work, beacons, and digital modes. A voice signal there will stick out like a sore thumb.
    73,
    diddly dahdidah
     
    rabbiporkchop Thanks this.
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  3. craig_sez

    craig_sez Road Train Member

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    Handlebar...I just used that freq as an ex dude..
     
  4. craig_sez

    craig_sez Road Train Member

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    Yeah i got a 50 ohm dummy load and a new meter to chk how much reflected wattage..Also a cheap 2ft jumper coax but weather has not been in my favor as of my time at home to do much..
     
  5. handlebar

    handlebar Heavy Load Member

    The weather shouldn't affect testing with a dummy load. If there's enough slack on the antenna end of the coax, you could pull it into the cab to keep rain off it while you test it that way. I know, a lot of my suggestions probably sound simplistic, but pretty often I catch myself getting tunnel vision with a problem until someone else at the shop takes a fresh look at what I'm doing and suggests something that makes me want to to a face-palm :)
    73
     
    mike5511 Thanks this.
  6. craig_sez

    craig_sez Road Train Member

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    We had some vold cold temps and snow even freezin rain..Dont feel like messin around at those times...Got other stuff i can do instead of freezin my fingers off or gettin soaked..
     
  7. craig_sez

    craig_sez Road Train Member

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    Well....I tested a crappy 2 ft jumper,fresh coax(cheap amphinal ends rg58a/u)and an old piece of lmr 240....The 240 came closest to what i wanna see compared to testing direct(dbl male pl259)....Ill post pics of old cable but direct to ant was a lil better..
     

    Attached Files:

  8. rabbiporkchop

    rabbiporkchop Road Train Member

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    Why did X change?
     
  9. Ridgeline

    Ridgeline Road Train Member

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    You don't need to post images, you need to use the best one you can get to be consistent with the readings from the AA.
     
  10. craig_sez

    craig_sez Road Train Member

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    No idea.....posted as i did my.tests...
     
  11. craig_sez

    craig_sez Road Train Member

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    Just posting results to show what happens is all..
    Here are final results with my 7ft skip shooter as short as it goes..Also noticed my mount was a tad loose from wearing out what it grabs on to...
     

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