where do you mount your TJ's cb radio - Page 5 - JeepForum.com

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post #61 of 141 Old 11-27-2008, 09:06 PM
5_guy
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I have been watching these post for some time now trying to get an ideal where to mount my Cobra 29. Finally today I was looking all around for a solution on this very same question. I don't like the installs on the dash (sorry just not my taste) and not to fond of under the dash or on the side of the center console. I finally figured out "why not inside of the center console?"
So I took out the center console, built a support panel and mounted to the inside. I like the ideal as nobody can see it first of all, and with an external speaker there is no reason to see it at all. The wires and coax come from underneath and for venting the heat I simply drilled holes in the fake sub woofer panel.

When the install is complete I will submit some pictures.


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post #62 of 141 Old 11-27-2008, 10:49 PM
jeepxguy_02
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I have mine in my center console as I posted earlier in this thread. Ive had it there almost 2 years and no problems. I just screwed to the inside of the console.(no support bracket) And there have been no issues. My jeep bounces around quite a bit and it hasnt came off yet. The only issue ive ran into is that you cant hear it that well when your going down the road 30+ top down and its just a little betterwith the top up at 40+. Probably just get small external speaker.
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post #63 of 141 Old 11-28-2008, 05:24 PM
jackbauersmom
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center console

teraflex mount

folds for parking garages (dd) (took spring off b/c it was banging the **** out of my hard top)

speaker on role bar

i'm so tired of being tired, sure as night will follow day, most things i worry about, never happen anyway
-petty


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Last edited by jackbauersmom; 12-08-2008 at 10:49 PM. Reason: bye bye spring
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post #64 of 141 Old 11-28-2008, 05:40 PM
Jerry Bransford
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Jackbauersmom, how well were you able to tune your antenna with that long spring at its base? I was curious because springs like that add length to the antenna which can make it difficult to tune for minimum SWR.

So far as how I mounted my CB, it's bolted to the bottom of my 2m ham radio which is bolted to an aluminum plate supported between the two center spreader bars in my Toys By Troy rollcage.
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post #65 of 141 Old 11-28-2008, 06:04 PM
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Here is my current setup....
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post #66 of 141 Old 11-28-2008, 06:16 PM
jackbauersmom
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Quote:
Originally Posted by Jerry Bransford View Post
Jackbauersmom, how well were you able to tune your antenna with that long spring at its base? I was curious because springs like that add length to the antenna which can make it difficult to tune for minimum SWR.
Jerry Bransford, have not had time to tune antenna yet, was going to try next week some time. only used it on trails and reception seems to be o.k. i've also thought about taking the spring off because with the hardtop on, it bangs the poop out of it. just worried that the antenna won't flex enough on trails and such.

i'm so tired of being tired, sure as night will follow day, most things i worry about, never happen anyway
-petty


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post #67 of 141 Old 11-28-2008, 06:25 PM
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Nice setup, Jerry. I really like that. I'm just concerned with theft. Would hate to have the damn antennas or CB's stolen.

As it is someone stole my regular antenna...

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post #68 of 141 Old 11-28-2008, 06:41 PM
Jerry Bransford
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Quote:
Originally Posted by jackbauersmom View Post
Jerry Bransford, have not had time to tune antenna yet, was going to try next week some time. only used it on trails and reception seems to be o.k. i've also thought about taking the spring off because with the hardtop on, it bangs the poop out of it. just worried that the antenna won't flex enough on trails and such.
The antenna being longer due to the spring and not having been tuned yet won't really affect its ability to receive in a noticeable way. An untuned antenna that produces a high SWR will significantly affect how much power it transmits with though.

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post #69 of 141 Old 11-28-2008, 08:05 PM
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Jerry: How long have you used that aluminum plate? I made something similar, and after a few years, the metal fatigued and cracked around the washers the mounting screws went through.
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post #70 of 141 Old 11-28-2008, 08:18 PM
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I didn't like the idea of the cb being over my head and a cord hanging down (yes, I'm picky about certain things), and I didn't like most of the "standard" mounting locations I found when searching, so I mounted it partially into the shifter console. I got the idea from someone around here, but don't recall the name.

I have since added the mic clip and it is not in my way at all.
I also have an external speaker mounted to my sport bar right next to my left ear.
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post #71 of 141 Old 11-28-2008, 08:37 PM
kb9qdi
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Quote:
Originally Posted by Jerry Bransford View Post
Jackbauersmom, how well were you able to tune your antenna with that long spring at its base? I was curious because springs like that add length to the antenna which can make it difficult to tune for minimum SWR.

So far as how I mounted my CB, it's bolted to the bottom of my 2m ham radio which is bolted to an aluminum plate supported between the two center spreader bars in my Toys By Troy rollcage.
Very true. A direct conection is a much better way to go and easier to tune.

I don't care for springs myself but he should be ok with the spring. Typicaly on 11M (CB) a longer antenna like a 102" whip is best but way too long for trail riding. I run a 2ft whip on the trail with 12ft of mini 8 coax and soldered my own PL259's to make sure I had a perfect conection. My antenna is mounted to my tire carrier (frame ground) on the center post and my 2M antenna is on the tail gate on the far right side using a 5/8 wave whip that works great with my Yaesu 1500M.

If there is a high SWR you can either use a tunable length antenna adjusted at the tip or tune with your coax in 3ft sections. I see alot of people using 18ft of coax and bundeling it up too tight making a RF choke also causing your SWR to go way up. If you have extra coax always wrap it in a 12 to 16 inch circle (elbow to hand roll) and wire tire it in the center. This will help alot or just use a shorter 9ft or 12ft section and be done with it.

My SWR is 1:3 on the CB this way and 1:1 on the 2M. Always make sure you have a good ground when mounting your antenna. A poor ground will give you a high SWR also.

Good Luck with the tune!


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Last edited by kb9qdi; 11-28-2008 at 09:44 PM.
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post #72 of 141 Old 11-29-2008, 12:48 AM
Jerry Bransford
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Quote:
Originally Posted by kb9qdi View Post
I see alot of people using 18ft of coax and bundeling it up too tight making a RF choke also causing your SWR to go way up. If you have extra coax always wrap it in a 12 to 16 inch circle (elbow to hand roll) and wire tire it in the center. This will help alot or just use a shorter 9ft or 12ft section and be done with it.
On the type of antennas we use for our CBs in our Jeeps, the length of coax used does not affect the SWR. Run the length that is needed whether it be 8', 10', 11', 15', 16', or whatever length it takes. SOME antennas, notably balanced, are sensitive to their feedline length but not the type of antenna we're using for. Note that some cheap SWR meters can make it appear to the uninitiated that coax length affects SWR but it really is only affecting the SWR meter itself, not the antenna's true SWR. Really. And the 18' length thing, that I admit sounds plausible to those with a smattering of an electronics education, is strictly an old wive's tale that has been disproven many times.

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post #73 of 141 Old 11-29-2008, 06:13 AM
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Quote:
Originally Posted by Jerry Bransford View Post
On the type of antennas we use for our CBs in our Jeeps, the length of coax used does not affect the SWR. Run the length that is needed whether it be 8', 10', 11', 15', 16', or whatever length it takes. SOME antennas, notably balanced, are sensitive to their feedline length but not the type of antenna we're using for. Note that some cheap SWR meters can make it appear to the uninitiated that coax length affects SWR but it really is only affecting the SWR meter itself, not the antenna's true SWR. Really. And the 18' length thing, that I admit sounds plausible to those with a smattering of an electronics education, is strictly an old wive's tale that has been disproven many times.
All very true. Thats the Ham in me sneeking out


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post #74 of 141 Old 11-29-2008, 08:36 AM
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post #75 of 141 Old 11-30-2008, 04:03 PM
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Here is how i mounted mine
CB, ham radio, XM radio and GPS
http://i209.photobucket.com/albums/b...y/PB300011.jpg

http://i209.photobucket.com/albums/b...y/PB300012.jpg

http://i209.photobucket.com/albums/b...y/PB300013.jpg

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