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High SWR with amp

Discussion in 'CB Antennas' started by Supspt454, Jan 25, 2020.

  1. Redbeard U812

    Redbeard U812 Sr. Member

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    Make measurements and mark location for hole "before" you measure yourself the adult beverage. Masking tape over the area of hole.


     

  2. Handy Andy

    Handy Andy Do Your Research First, Then Decide...

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    Measure twice...
    Drill Once...
    Celebrate as you see fit...
     
    Redbeard U812 likes this.
  3. loosecannon

    loosecannon Sr. Member

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    i like to steal the wife's cloth tape measure she uses for sewing when doing roof top installs.
    makes it super easy to find center of the roof.
    LC
     
  4. Supspt454

    Supspt454 Member

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    Awesome. Thanks for all the input. No, I won’t be having a drink before hand haha. But I will post results afterward and see if everything is happy afterwards.
     
    Shadetree Mechanic likes this.
  5. Supspt454

    Supspt454 Member

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    Today is the day to drill. Does anyone know if the roof of a 04 GMC Sierra regular cab is double skinned? If it is then that may cause quite a bit of problems.
     
  6. Supspt454

    Supspt454 Member

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    The correct answer is no. It is not double skinned. Hole drilled fine. Now awaiting the box to see if everything will work out.
     
  7. Supspt454

    Supspt454 Member

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    Super Bowl Sunday update. Wilson 5000 roof top installed. Stock Wilson whip bottomed out in the load had around 1.5 swr on 1 and around 2 on 40 before tuning. Thought before I started trimming I would try a stock 58” K40 whip. Swr went to 1.1 on 40 and 1 flat on channel 1. So I locked it down and going to give it a try.
     
    Redbeard U812, 2NC995 and RT431 like this.
  8. Handy Andy

    Handy Andy Do Your Research First, Then Decide...

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    (y)(y)!
     
  9. RT431

    RT431 In the swamp

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    Sweet! (y)
     
  10. Supspt454

    Supspt454 Member

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    FBE4E370-10C5-401B-B9A0-D3068258EB65.jpeg 2B10D569-56B2-4A51-B8D2-AAD52A35FA4F.jpeg Still can’t believe I drilled through my roof.
     
  11. Handy Andy

    Handy Andy Do Your Research First, Then Decide...

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    Nice job!
     
  12. Supspt454

    Supspt454 Member

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    Update: Everything is back installed and up and running. SWR readings when it’s on is staying low, which I know isn’t a true swr reading rather then showing some reflect right? Anyhow, I hammered for about 15 min to some locals about 7 miles and 25 miles away and they said I jump about 2s units and the audio jumps way up and sounds real clean and clear. Voltage drops from 14.8 at a fast idle to about 13.7 on TX. Dash lights dim slightly but not bad at all. Radio and box both stayed very cool to the touch after 15 min. Driving about 1/4 radio power into it, which that is about where the swr reading on the radio is the lowest. So far so good! Now I just need that Ranger SRA 198 and I should be done with this install! Thanks for all the comments and help.
     
  13. Tokin

    Tokin 42Zero Tampa

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  14. Supspt454

    Supspt454 Member

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    What is a Puck
     

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