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JK CB & HAM Radios Bulletin board forum regarding all topics concerning CB and HAM radios, the installation of them in your Jeep JK Wrangler. This would include antenna mounts, wiring, tuning and usage.

My Cobra 75 CB and antenna install

Old May 30, 2008 | 05:56 AM
  #101  
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Originally Posted by bobzinger
Ok, I think I know what you're talking about. I'll swing by my local hardware store and check out what they have. It sounds like its pretty easy to do.

If I run the hot wire to the battery and run the ground to someplace behind the dash, can I just cut the black wire so I don't have a lot of extra cable? Or would it just be best to tie it up someplace back there?

Thanks for the quick response!

-Bob
It is quite simple to do. Particularly once you have done it a couple times.

And yes, you can just cut any extra wire you don't need. No need to have a bunch of extra wire cluttering things up. That goes for the power and the ground.

One last thing. This is personal preference, but I ran my power to the ignition, NOT the battery. I did this so that the CB, if left on, would turn off on its own when the key is removed (just like the radio does). That way, you won't have to adjust volume, squelch, etc. if you sometimes leave the CB connected and still want it on. Connecting the power to the battery should be an "always hot" connection, which means that if you have the CB on after turning the Jeep off and leaving the vehicle, the CB would still remain on indefinitely unless you also manually turn the CB off, and this could drain the battery.

But again, it is a personal preference. If you like to use the CB a little more often, I would advise tapping into the ignition. If you really only want to use it on the trails, then I would think the battery is best (so you could still hear it with the key removed).

But if you choose the ignition way rather than the battery, the easiest way is to tap into the blue wire behind the drivers side cigarette lighter. That is on and off with the ignition. The right hand side cigarette lighter is an "always hot" wire. (You could also use this one to tap into instead of running the wire through the firewall directly to the battery.) If you go either of these routes, you would just cut the proper wire (making it into two), then add the power wire from the CB, twist them all together and fasten with a connector. (The connecter for this kind looks like a thimble that tapers some towards the closed end.)

Lastly, I like to wrap a some electrical tape around my connections, just to be sure the crimping remains tight.

Good luck. Hope you enjoy the CB.
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Old May 30, 2008 | 08:58 PM
  #102  
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Originally Posted by Jamooche
Thanks! I installed the CB brains, now I just need to decide which antenna mount I want.
Wilson ultra flex antenna IMO....and it comes with a lifetime warranty..
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Old Jun 2, 2008 | 11:29 AM
  #103  
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Last weekend I installed a Cobra 75 in my '08 Sahara. The only thing I'm not really happy about is the mic plug location. I installed the mic plug in the same spot as HG97TJ did. I sat in the passenger seat and didn't like how my knee bumped against that plug. So last night I ordered the extension cable from Cobra which gives you another 4' to locate that plug in another location. I'm thinking I'll put it on the bottom panel in the center stack.
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Old Jun 2, 2008 | 01:36 PM
  #104  
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Originally Posted by grav
Last weekend I installed a Cobra 75 in my '08 Sahara. The only thing I'm not really happy about is the mic plug location. I installed the mic plug in the same spot as HG97TJ did. I sat in the passenger seat and didn't like how my knee bumped against that plug. So last night I ordered the extension cable from Cobra which gives you another 4' to locate that plug in another location. I'm thinking I'll put it on the bottom panel in the center stack.
There's not much room behind that lower panel.

It you look a few posts back . . . you'll see my pictures and how you don't have to mount the end. Follow my lead and you'll see it's not in the way at all. The mic cable hugs the center stack so it's out of the way.

I'm all about mounting stuff when need be, but don't make this harder than it has to be.
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Old Jun 4, 2008 | 02:17 PM
  #105  
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Exclamation Quadratec CB bracket package deal

Has anyone looked into the Quadratec CB bracket/ antenna/ cable package. They said that the antenna is already "pre-tuned". Does that seem correct? I would like to go with that package if that means I do not have to deal with tuneing the antenna.
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Old Jun 4, 2008 | 02:52 PM
  #106  
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Originally Posted by ranger1308
Has anyone looked into the Quadratec CB bracket/ antenna/ cable package. They said that the antenna is already "pre-tuned". Does that seem correct? I would like to go with that package if that means I do not have to deal with tuneing the antenna.
Thats what i got. Works great. You still need to tune it once on the jeep though.
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Old Jun 4, 2008 | 02:55 PM
  #107  
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Originally Posted by ranger1308
Has anyone looked into the Quadratec CB bracket/ antenna/ cable package. They said that the antenna is already "pre-tuned". Does that seem correct? I would like to go with that package if that means I do not have to deal with tuneing the antenna.

This is the first time I have heard of this set-up. If it's true it would be a nice kit. No more trying to find someone with a SWR meter to tune your antenna.
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Old Jun 4, 2008 | 04:50 PM
  #108  
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From: tn
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I think it is just bench tuned. Its close but should still be tested once on your jeep.
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Old Jun 4, 2008 | 10:46 PM
  #109  
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Originally Posted by nota4re
There is absolutely, positively, 100% certain, no such thing as a "pre-tuned" CB antenna. The antenna radiates energy and HOW this energy is radiated is VERY dependent on the grounded surfaces surrounding the antenna. Antennas are very sensitive to this! Many antenna kits may work OK "out of the box" if they are well designed and installed correctly. However, you are not going to get optimum performance unless the SWR is tuned on your vehicle.
Agreed. "Pre-tuned" does not mean that you are tuned correctly after install. You will still need to use an SWR meter or risk frying your CB. Please do not assume that a "pre-tuned" antenna is correctly tuned to your vehicle for transmission.
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Old Jun 5, 2008 | 05:15 AM
  #110  
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Originally Posted by nota4re
There is absolutely, positively, 100% certain, no such thing as a "pre-tuned" CB antenna. The antenna radiates energy and HOW this energy is radiated is VERY dependent on the grounded surfaces surrounding the antenna. Antennas are very sensitive to this! Many antenna kits may work OK "out of the box" if they are well designed and installed correctly. However, you are not going to get optimum performance unless the SWR is tuned on your vehicle.
what he said
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