Mirror Ground Wire

Discussion in 'CB Radio Forum' started by awright, Dec 22, 2020.

  1. awright

    awright Light Load Member

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    Dec 20, 2016
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    Does anyone know if the mirror ground wire is good, as long as it will light a test light off of the batteries? I am struggling with a high SWR, and wonder if I need to re do the grounding on the mirror arm.

    Thanks
     
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  3. Finfn1372

    Finfn1372 Road Train Member

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    What kind of truck.

    I had an issue on my volvo,until I put some good studs up.
     
  4. awright

    awright Light Load Member

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    Dec 20, 2016
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    its a 2006 peterbilt 379. Something in my SWR has changed, and my antenna and coax test ok.
     
  5. Finfn1372

    Finfn1372 Road Train Member

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    Hopefully someone can come in and help you.

    I'd suggest maybe running a ground strap.
     
    Timin770 Thanks this.
  6. awright

    awright Light Load Member

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    Dec 20, 2016
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    Yes, that is what I plan to do when I get back to the shop. Thanks
     
  7. Timin770

    Timin770 Road Train Member

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    What kinda numbers are we looking at?
     
  8. awright

    awright Light Load Member

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    Dec 20, 2016
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    I am getting 2.5 on channel 1, and 3.25 on channel 40. Way too high, and I have the stinger all the way in on a 4 foot fiberglass firestick antenna. I am in the market for a new antenna, since my Wilson 5000 broke, I just have not made a decision on what to go with this time. Predator 10k, Stryker, or another wilson 5000. I have to figure out this swr issue first.
     
  9. Timin770

    Timin770 Road Train Member

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    I'm still chewing on the SWR issue, but I'd recommend getting a 5-footer if it fits under bridges. That extra foot makes a big difference
     
  10. Ridgeline

    Ridgeline Road Train Member

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    What are you getting at the antenna?
     
  11. awright

    awright Light Load Member

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    Dec 20, 2016
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    The SWR is running about the same at both locations. I have put in line behind the radio, and also before the antenna. I tested the coax, and it is .2 Oms resistance, so it seems to be ok. I don't know if there is a test for the mirror ground, other that if it will light a test light or not. When I get back in the shop, I think I will redo all the ground wires and see what i get.
     
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