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High SWR reading (5)

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Old 04-02-2014, 07:36 AM
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Originally Posted by JK7007
Could i have the antenna out together wrong? I have the plastic washer then a metal washer then bracket then metal washer then the spring?
Can you take a more detailed picture of this?
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Old 04-02-2014, 07:38 AM
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Originally Posted by arjeeper
Though there is a common "rule" that coax should be 18' for a CB, that "rule" only came about due to so many poorly grounded systems. In a well-grounded system, the coax length is irrelevant as it's not part of the antenna. Only when the coax is acting as the counterpoise (bad, but common) would the length matter.
Agreed. However with so much extra, sometimes people make the mistake of coiling the excess (which cause interference) instead of stuffing it.
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Old 04-02-2014, 07:39 AM
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Originally Posted by JK-FREAK
CB ground is different than electrical ground. You shouldn't need to scrape any paint so long as there's a decent connection between the antenna mount bracket and the frame of the vehicle (not the body).
You're right that an electrical and RF ground are different. Although using "star washers" against the body to dig in will work as well, scraping some paint should ensure both an electrical and RF connection. (Electrical not really necessary here)

And the body should be well bonded to the frame as it is, allowing a connection to the body to work fine.
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Old 04-02-2014, 07:40 AM
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Originally Posted by JK-FREAK
Agreed. However with so much extra, sometimes people make the mistake of coiling the excess (which cause interference) instead of stuffing it.
True. Could end up forming an inadvertent choke.
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Old 04-02-2014, 03:50 PM
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So i stopped 4 wheel parts and picked up a new cable and stud. Re ran the cable with no coiling. And now the reading is even higher. I took a reg wire and tried grounding it to the frame and nothing.



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Old 04-02-2014, 05:34 PM
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Did u check to see if ur antanna had a short in it?

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Old 04-02-2014, 05:44 PM
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Originally Posted by Rbzak
Did u check to see if ur antanna had a short in it?

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I didn't. How would I do that?

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Old 04-02-2014, 06:38 PM
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Ok so i took of the mount a ground off the paint and the metal plate had some sort of coating on it so i removed it all to bare metal. Then i changed my antenna to a different non tunable one and got channel 1 to read right below 1.5 but channel 40 was closer to 3. Any ideas for this now. Thanks to all who are helping by the way.

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Old 04-02-2014, 06:53 PM
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Originally Posted by JK7007
Ok so i took of the mount a ground off the paint and the metal plate had some sort of coating on it so i removed it all to bare metal. Then i changed my antenna to a different non tunable one and got channel 1 to read right below 1.5 but channel 40 was closer to 3. Any ideas for this now. Thanks to all who are helping by the way. Sent from my SM-N900V using Tapatalk
There we go! A 3:1 SWR isn't too bad on the far end of the channelized spectrum. I'd go with it.
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Old 04-02-2014, 06:55 PM
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Sweet. I read that I might have a long antenna but I got a 4 ft and if I go with a 3 it won't clear my soft top

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