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SWR Question on new radio.

Discussion in 'CB and Export Equipment and Accessories' started by Mudduckmobile, Dec 7, 2017.

  1. Mudduckmobile

    Mudduckmobile
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    I use a cross needle meter, two of them one meter is between the radio and one meter is after the amp at this time when I put the
    tuner in line it too has a meter (cross needle).
    I always watch my meters when I Tx. watching for Bad Reflect, then I saw the swr, and went into caution mode.


     

  2. Mudduckmobile

    Mudduckmobile
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    I was going to look in side but started emailing bob and am not going to open the radio as it has been sealed by Bob so I will do as he wants for now....
    Bob emailed me and wants me to put a low pass filter on and re test and email him my findings.
     
  3. Tallman

    Tallman
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    W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    Caution is cheaper than finals any day. I play it real cautious too.
     
  4. Mudduckmobile

    Mudduckmobile
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    20171207_122133.jpg
    I got some ice today. Antenna is a Sirio 2016 feed point 42ft.
     
  5. Mudduckmobile

    Mudduckmobile
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    yes.
     
  6. Mudduckmobile

    Mudduckmobile
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    I try to protect my gear....The wife gets mad when I spend to much on radios....
     
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  7. Mudduckmobile

    Mudduckmobile
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    20171207_125829.jpg
    This is 27.385 now.
     
  8. Tallman

    Tallman
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    W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    My wife does the old "tit for tat" routine. Do you have any idea how much yarn she can bring into the house for the cost of two of radios? Icom 7100 and a Yaesu ft-857 have us sleeping dangerously close to a mountain of yarn that trembles when a car drives by the house. One day all of those sheep and alpacas will jump us in our sleep.
     
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  9. Mudduckmobile

    Mudduckmobile
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    I told them to only do the conversion mod and alignment. No gold screw drive happy turning.
     
  10. Mudduckmobile

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    I may have not stated that I do check the swr with out tone. I also watch swr as I tx and saw an reading I had not seen before, an up move of the needle when I was on ssb. With all of my other radios I had not noted an up sweep when modulating.
    I understand we don't check vswr on ssb. With my cross needle meter I find myself looking at it a lot as I Tx and I see things I did not see with my old single needle meter.
     
  11. Tallman

    Tallman
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    W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    What you most probably seeing is the result of the "Super tune" and the harmonics will definitely show up that way. Antenna tuned to what ever CB channel and the harmonics are reflected back to the radio. Not a good situation if you don't want to be replacing the finals. Won't happen too soon I hope.
     
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  12. sp5it

    sp5it
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    Meter is broken.
    Mike
     
  13. Mudduckmobile

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    Well this is one for the books.
    So from the new radio to the meter is a new jumper (DXE-8xDX003) as each radio has it's own jumper going to the radio, each is marked, and I hook up 1-5 radio's to the first meter.
    Anyway, tried the jumper from the ft450d, and it works, did the same test with all jumpers, and I have a bad jumper...
    Fixed.
     
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  14. Tallman

    Tallman
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    Good detective work!
     
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  15. Mudduckmobile

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    Thank you. I had to make sure , so the only thing would be the radio.
     

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