cb radio coax

fibs99: Would connecting an antenna tuner in line keep the SWR down ?

You could burn the final output transistors of the CB if you continue to transmit with any mismatched antenna system. (this qualifies) You might make some interference on sets within close proximity of the CB depending on how good the set (and coax cable) is filtered.
This prompts the burning question . . . WHY?

2008-05-23 06:30:30 by Skipper

An easy and inexpensive antenna coax switch for antennas using the S0-239 connectors. This most often includes ham radio and CB antennas. You can ...

it is a regular cab.

if you have to drill for that hole just don't drill it on the back of the cab run it down under the cab and drill through the floor board and come back up with it,if you drill through the back of the cab i guarantee you it will start leaking water when it rains,been there and done it before,good luck.

2009-07-15 11:27:07 by wadex2000

Soldered PL-259 on each end.
Gray RG-8X (also called Mini 8/U).
95% copper braid shield.
16 Ga stranded center conductor.

You can make an antenna that will work REALLY well , but it is not easy for a beginner without any knowledge on the subject.

My suggestion is to get from the library the 'ARRL Antenna Handbook'.

In it you will find formulas and build descriptions of many different types of antennas that will out perform pretty well any store bought CB antenna.

But if you think that you can make something with a few bits of wire , and not do any maths or precision building then forget about it rite now.

2008-05-26 09:14:06 by Lee L

Price: $32.28 $6.87

If it's an automatic.. there is a plug for a non existant clutch master cylinder.. most pass it thru there.. if a stick some wack the connector off if it's RG-58 and run it pass the frame mounts on the inside of the truck... you can also look by pulling up the carpeting and seeing if they have drain plugs underneath the carpet (most newer ones have those)

2008-03-04 12:33:20 by jah_surfin

I have been troubleshooting this problem for months...

I have mobile Cobra 18WX-ST-II CB Radio hooked up to a 4-foot Firestik no-ground-plane antenna. I get crystal-clear reception from people miles down the road, but when I transmit, people tell me to, "throw that CB out the window" because all it does it squeal like crazy. Plus, the TX transmit bar goes all the way into the red while transmitting.

I have the no-ground-plane antenna because my car is a 2005 Saturn Ion III, and is predominantly coverd in plastic. The antenna is mounted high on the trunk area of the driver's side, and it is insulated from the car. The coax runs through the trunk and along the floor of the inside of the cabin, up to the CB radio, which is hooked to the bottom of the dashboard of my car. The wire is not pinched in any way, nor is it cross. The connection is solid at both ends. I have tried tuning the end of the firestik, and I have tried grounding it directly to the negative terminal on the battery, even though it's a no-ground-plane necessary rig.

The CB Radio is power through the cigarette lighter with clean, solid connections.I am not picking up RF interference because I have tried the CB radio with the car shut off.

The CB is stock, the radio coax is unchanged, the antenna is unobstructed...

Please, for the love of God, can anyone give me some ideas? Do I perhaps need to find a way to ground the actual CB Radio metal box to the chassis? And if so, how? Could the position of the antenna be poor? Could I have not made solid ground connections even though it's a no-ground-plane rig?

Thank you.

First of all if the antenna is truly a "no ground" antenna, remove the wire from the negative post of the battery. There are two possiblities why it is squealing. You may be talking too close to the mic. Or if the radio came with the stock mic, the mic could be bad. See if you would be able to borrow someone else's mic for a test. Hold the mic about 4 inches away from your mouth when speaking. If your radio has a mic gain. Set the mic gain to the middle. The mic gain is like a internal power mic. If the mic gain is too high and you are talking too close to the mic, you may be over modulating (squealing) on the air. Even though it is a Saturn. I think that you would be able to get a trunk lip mount with a 3/8 x24 screw in antenna mount. When the antenna is mounted to the trunk lip (using the allen screws) it technically will be grounded. Best of luck.

2009-02-18 06:53:44 by Mark W