Question about Cobra 19 DX IV CB Radio

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Need more power

Ok i put the cb in my 01 jeep wrangler, ive had problems with noise interference but got most of that fixed, i have a fiberglass k40 antenna, hot wire directly to battery, grouded to body, but the problem is i can pick up pretty well its i cant go out that far, any quik inexpensive fixes for giveing me more output power, i had a guy tell me i could snip something on the circuit board and it would fix the restrictor they have on them, im not really firmiliar with cbs anyway just thought it would be something fun to get into, and dont want to pour a bunch of money into it, any ideas on a cheap fix

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Cbtricks.com

Posted on Sep 15, 2008

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6ya6ya
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Just purchased a new galaxy dx959. Coax and k40 10k watt antenna. Installed it in my peterbilt 379. I have a lot of background noise. I tried unhooking the coax from back of radio and the noise goes...


You probably have the 959 that has a MOSFET final. It is not recommended that you try to get more power/mod by just turning pots. This can shorten the life of the MOSFET drastically. I normally set the power output to 7 watts and the mod to 100%. This give around 30 watts peak on AM and around 25-30 watts sideband. You need proper test equipment to align the radio.

As far as background noise, this type of radio does have more that others. Make sure the Noise blanker and ANL are turned on. If you are getting noise from equipment in the vehicle, you should take your truck to a good CB shop. They can find out what is causing the noise and fix it.

....Don at NTCB, Inc.

Jun 08, 2011 | Galaxy Radios DX-959 40-Channels Base CB...

1 Answer

Ok so when I bought my '97 jeep wrangler a couple of months ago it came with a CB. It is all hooked up, came with a huge antenna( 4-5ft maybe), all of the lights come on, the weatherman channel works, and...


check the sw's and the antenna. those are SHORT antennas by cb standards. a 1/4 wave is about 9ft long. a full wave is around 36 ft.. so anything shorter than the 102" whips are prone to have less range. if swr check out. the board on the 18's and 19dx styles need to be resoldered from time to time. simple fix .. don't pay more than $8 to fix the radio...

Feb 01, 2011 | Cobra 18 WX ST 40-Channels Base CB Radio

1 Answer

Road noise


You will need to install a noise filter, you are getting interference from the Alternator in your vehicle.

Jun 19, 2010 | Cobra 29 LTD CB Radio

1 Answer

How do i do this?


the current power supply is constant,
{ coming straight from the battery supply}, you need to disconnect that wire and connect a wire coming from the ignition, using a circuit tester, locate a heavy wire that only lights the tester when the ignition is on. I would still recommend using a fusable link before bare connection. This will solve your problem, Cheers.

Jun 01, 2010 | Midland 1001Z 40-Channels Base CB Radio

1 Answer

I have a pickup with a fiberglass bed cover, inside is a Cobra 29. When the k40 antenna is on the bedcover (magnetic mount w/ 6x6 inch metal plate glued to the bedcover) radio will give me an antenna...


Well, the k40 is designed for roof or trunk mount,you would not be getting a good ground,plus you would be getting feed back from cab,no good transmit or receive. Get a good 102" fiberglass or steel whip that's bumper mount,mount it on right rear bumper and you will be good to go.

Mar 28, 2010 | Radio Communications

1 Answer

I have engine whine on a wilson 5000 magnet mount. When I remove tha antenna the whine goes away. How might I fix this. Ive heard that all magnet type antennas have this problem is this true?


Yes, this is true. Magnets cause interference with electrical currents and signals. You can buy and install an in line noise filter, that would probably reduce or relive the whining alternator noise.

Jan 08, 2010 | Cobra A1500 300 Watt Magnetic Mount Cb...

2 Answers

Terrible static


What type of antennae are you using? If you are using an aluminum or stainless steel ant, I would suggest switching ti a fiberglass ant. It sounds like the metal ant is picking up the ambient voltage from the lines. If you are using a fiberglass already let me know, as you may have a more serious problem. Good Luck and I hope this helpsd L8R

Sep 17, 2007 | Cobra 29 LTD CB Radio

2 Answers

Uniden pc 78 elite cb


Hi, This is a link to your old post re SWR 3....http://www.fixya.com/support/t180697-pc78_elite_cb As stated SWR 3 is too high, it should be 1.5 or lower. Fiberglass antenna are kinda notorious in setup and experience wise have not performed well or at all. Maybe you should try a different antenna (metal rod). Some good brands/models I have tried with very good results are K40, Hokushin, Comet, Oscar, Maldol, Daiwa. To check if you can receive, stick an ordinay length of wire ('bout 9' long) at the center of your radio's connector. RX should work (pls don't key the mic or TX).

Aug 12, 2007 | Uniden PC78ELITE 40-Channels Base CB Radio

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