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Old 03-29-2013, 06:42 PM   #1
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CB install questions.

Installed a Galaxy DX 959 CB in my Jeep Wrangler.
I'm a fair novice at CB, and when I powered up I was concerned about SWR tuning. (still am, but it seems close in tuning)
Don't have a separate meter to use, and trying to tune up the antenna.
(Firestik Firefly 3 ft.)(front fender mounted, on driver side)
Tried a 2 ft. unit but didn't pick up much reception.
3Ft is better somewhat.
Question, should I take this new radio in for tweaking? Is this a common practice to make sure things are aligned correctly? I'd like to have reasonable assurance it's working at best possible circumstances.
That would include the tech also tuning the antenna correctly?
How do professional truckers handle these things?
You'd think they would be experts!
Any helpful suggestions would be appreciated!
Then we can rap on the trails better!

Thanks,
52Tele

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Old 03-29-2013, 06:48 PM   #2
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You can pick up an SWR meter for next to nothing at your local Radioshack.

If you are concerned about tuning and adjustment and want a "pro" to do it, you can usually find radio shops along major interstates that truckers use. I hear them talk on 19 all the time about "where's the next radio guy?" and occasionally a local radio shop around here broadcasts their advertisement on 19.

Have you checked your ground? Length of coax?

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Old 03-29-2013, 07:33 PM   #3
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I never touched a cb before and I tuned my antenna with a swr meter in about 20 minutes.


http://www.firestik.com/Tech_Docs/Setting_SWR.htm
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Old 03-30-2013, 06:38 AM   #4
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The 959 is a nice choice. I have found that antenna location and placement on the vehicle is critical to performance. The type of antenna along with the placement has an impact on performance. I run a Connex HP 4300 in my super duty with a Wilson Trucker 2000 mounted on the opposite side in the same location as the radio antenna. I had a very difficult getting the SWR tunes. If I move the antenna to the roof it was easy to tune the SWR with much lower result 1.1:1 vs. 3:1.

Another thing is to check to be sure you have the correct length of coax (18 ft is optimal for mobile units) and that you don't have it coiled anywhere in the length.

On my 1983 CJ I run a 4 foot Fire Stick mounted on the spare tire stop bracket on the passenger side. I run a Cobra 25 in this Jeep and the SWR is perfect at 1.1:1. In my 1990 YJ I use a Cobra 29 with the Fire Stick mounted on an aluminum riser bolted to the top of the swing away tire carrier. the SWR is a nightmare on this one. However, when I had it mounted in the lower fender just above the rock rail the SWR was perfect. I moved it due to tree limbs constantly catching it and knocking it into the mirror.

Beware of the cheap SWR meters. You are better off to go ahead and buy a good analog meter or digital SWR meter. Also beware of truck stop CB guys, many of them are CB hackers and don't know what they are doing. If they have an oscilloscope and a digital SWR meter the likelihood that they know what they are doing is much greater than if all they have is a soldering iron and a few resistors/capacitors.
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