Run new cable or add extension - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 8 Old 03-28-2012, 03:56 PM Thread Starter
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Run new cable or add extension

I bought a new Uniden Pro520XL and am relocating my existing CB installation from underneath my dash to above my rear-view mirror. The problem is that the coax isn't sufficiently long to go up the passenger A-pillar and across the top of the windshield. I have (maybe) a foot of slack below the dash where I currently connect my Midland 75-822.

I currently have 18' of uninterrupted Firestik-brand coax with their Firering end on one end and the mini coax connector on the other. I don't think I have much slack along the way to make up for the missing length.

Should I remove the old 18' cable and run a new 25' uninterrupted coax cable or just add a 9' section with a screw-type coax coupler?

Any substantial loss in signal strength or voice quality?

Thanks.

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post #2 of 8 Old 03-28-2012, 06:16 PM
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Good question. Personally I would rather have an uninterrupted cable. But I don't really have a good explanation of why. I guess I would consider additional couplers as restrictions to a smooth signal??
Edit: That reminds me... I have a CB question too but I'll start a new thread.

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post #3 of 8 Old 03-28-2012, 06:42 PM
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I can't speak definitively about signal loss but would imagine there might be some loss at a connector if you spliced cables together.

I would opt for a new cable and have it uninterrupted.

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post #4 of 8 Old 03-28-2012, 07:18 PM
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Great question Taxman, I've got the same dilemma. Supposedly 18' will get you from mid rear door to above the rear view mirror but I don't think mine will do it.

I'm about to ditch my Cobra 75 for a unit installed above the rear view mirror myself.

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post #5 of 8 Old 03-28-2012, 08:16 PM
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Are you using an over-head mount? If so, why not run the 18' up the rear roll bar to the sound bar to the over-head mount? Just thinking....

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post #6 of 8 Old 03-28-2012, 08:22 PM
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The connector will lose some signal, any electrical connectors I have seen always do, but doubt it'd be too bad to not use. As long as you check the SWR properly and don't have a bad #...


I personally think it would be fine, but make sure you protect it from dirt and water.

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post #7 of 8 Old 03-28-2012, 08:37 PM Thread Starter
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Thanks for the responses. I think I'm going to buy a 9' extension with coupler and test the SWR. If it works, I'll go with it and report back. Otherwise, I'll ditch the 18' and get a 25'. I don't think my 18' will make it. I'm going out the center plug of my rear door to the Or-Fab carrier with very little slack. I got to the glove box with about a foot of slack.

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post #8 of 8 Old 03-28-2012, 10:05 PM
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In commerical work we would never, ever, add to a cable that was too short; we always replace it with a longer cable. You stand to lose 1.5 to 2 dBs of signal (about a third).

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