Antenna coax cable (18') routing in 2 dr. - Jeep Wrangler Forum
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Old 02-24-2018, 04:52 PM
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Antenna coax cable (18') routing in 2 dr.

If my understanding is correct, for reception purposes I don't want to shorten the 18' antenna lead nor do I want to coil it on itself or make sharp turns.

For context - installing Cobra75WXST/18' Fire-Flex RG-58A/U cable w/heavy duty stud mount/Teraflex heavy duty hinge mounting plate/4' Firestik.

Question is: If I can't coil up the excess (and there is several feet), how do I deal with the excess? Currently the antenna coax is routed through the tailgate, under the passenger side rear fender trim, under the passenger seat carpet and up to the passenger side firewall via the center console trim.

The coax connector at the CB end is a solder on connection, so not an issue to cut off the excess and solder the connector - except from what I've read the entire point of the length of it is to enhance reception and hacking off half of it will be detrimental.

So?

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Old 02-24-2018, 04:56 PM   #2
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I ran 18' in my 2 door and I just made some big loops with the excess and had great reception/transmission. I ran mine along the passenger side under the carpet.

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Old 02-24-2018, 06:52 PM   #3
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You can cut the cable. That’s a long standing myth. I cut mine on my two door. Tuned up just fine.

http://www.stu-offroad.com/misc/myth-1.htm


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Old 02-24-2018, 06:58 PM   #4
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I agree, Just cut the cable it won't effect your SWR...

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Old 02-25-2018, 09:38 AM   #5
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Cut it. I put my antenna on the drivers pillar mount, ran it through the firewall, under the carpet to the drivers seat. I had about 10 ft or so of cable left over. You will not have an issue by shortening the cable.
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Old 02-25-2018, 12:23 PM   #6
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You can cut it and put on a new connector.
You can coil it. (Not too tightly, at least 6" diameter)
You can just stuff the extra behind the dash, just no sharp bends.
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Old 02-28-2018, 04:41 PM
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Cut 6' off 18' coax, stripped and soldered on connector. 4' Firestick required a few turns of the tip adjuster screw. Results: highest SWR meter reading just under 1.5.

So much for "don't shorten an 18' CB coax.......

Thanks for the help to those who replied.
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Old 02-28-2018, 05:15 PM   #8
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Quote:
Originally Posted by billum v2.0 View Post
So much for "don't shorten an 18' CB coax.......
Exactly. With the types of antennas we run on our Jeeps, the coax length absolutely does not matter.
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Old 03-11-2018, 07:01 PM   #9
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I just finished installing an 75 wxst cobra in my wrangler.I did it just like the book said,but all I get are the weather chanels. I get no cb trans. at all. The swrs are perfect tuned. Anyone know the cause ,thanks.
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Old 03-11-2018, 07:41 PM   #10
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I just finished installing an 75 wxst cobra in my wrangler.I did it just like the book said,but all I get are the weather chanels. I get no cb trans. at all. The swrs are perfect tuned. Anyone know the cause ,thanks.
Rare to get no transmit when the SWR is "perfect". What SWR did you get? Have you installed many CBs prior to this one?
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Old 03-11-2018, 09:06 PM   #11
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I could ask for a radio check all day long and never get one. I rarely hear anyone on the radio so if that is how you are judging it you might actually have to find someone with a cb. If you have done that and still not getting transmission then I would double check your cb antenna mounting as I have seen false perfect swr readings when in fact the antenna was not grounded properly.

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