Question about Cobra 25 LTD 40-Channels Base CB Radio

1 Answer

I Cant Pick Up Any Signals On my Cobra 25 LTD 40-Channels Base CB Radio all i hear is nothing. no truckers saying stuff. i just get white noise i do have an antenna. it is a tv antenna w/ bunny ears :) i want to talk to other cb people. Does the cold water pipe really work a a good antenna? someone told me that the cold water pipe under my sink is the best antenna, is this fact or fiction? thank you sooo much for your help. -Chris

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  • 43 Answers

Your problem is probably the rabbit ears. They are for tv in the 54+
Mhz and CB is 27 Mhz. For simplicity, go to Radio Shack and get a back of the radio indoor antenna. They run under $20. If you want to get more; try a roof antenna or a 1/2 wave cb marine antenna outside.
Hope it helps.3
Tom

Posted on Apr 27, 2014

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Posted on Jan 02, 2017

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informatica
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SOURCE: Cobra 75 WX ST 40-Channels Handheld CB Radio manual/antenna

Hi - You can download the manual from the link underlined in blue below:

75 WX ST

Other info here.

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Please take a moment to rate this solution & let us know if the information given was useful to you - Good Luck!

Informatica

Posted on Aug 31, 2008

Benimur
  • 6966 Answers

SOURCE: New Cobra 29 ltd

Hi,

Appreciate the direct "Ask Me". If I may clear up your concern:

  • you have two CB radios, one is a Cobra 29LTD and the other?
  • both have received and both do not transmit;
  • you have two trucks, one with a Firecracker 1000 antenna, and the other?
In any case and initially, TX (transmit problems) could be caused by:
  • defective PTT/mic;
  • defective finals/drivers;
  • defective PL-259 connector/RG58 Cable;
  • antenna grounding/SWR;
  • other electronics internally
Please check the above. You may need an SWR meter, a watt meter and a DVM/VOM to perform the tests.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information. Good luck and kind regards. Thank you for using FixYa.

Posted on Nov 05, 2008

wesmckay
  • 9 Answers

SOURCE: Cobra 25 LTD - building causing a shadow area

The older base station was probably peaked and tuned by a CB shop, basically giving it a lot more power. Stock radios very rarely have a full 4watts of power, to tell you the truth. Mine now does 5 1/2 watts and swings to around 20 when I talk. Might be a good investment. Oh, the antenna can't be too big for any wattage. Might want to recheck the antenna's tuning, though...

The truckers wont pop the fuse at all, but I might recommend backing your RF gain down some when they are that close so they dont burn up your receive.

Posted on Jan 15, 2009

  • 773 Answers

SOURCE: transmitting and receiving

RF gain should be all the way up. Turn the squelch all the way down. Turn the ANL/NB to just ANL.

Turn the dynamic up at least 3/4.

Once you have confirm you can receive and transmit, then you can turn up the squelch up until white noise just stops.

Make sure you are on 19 by the highway. Key up and say break break one nine, can some one give me a radio check please.

you should get a response.

Your RF gain is how much you receive. the higher it is the more you receive. In normal operation there is no need for it ever to be less the all the way on.

Squelch is just to knock out fuzz, and if you only want to hear people close not far. A little less then half way is a basic setting.

the ANL switch is the automatic noise limiter. if you have interference from your vehicle, like engine noise, turning this on will quiet that. If it is extreme engine noise then switch it to NB, noise blanker. It is just a more intense setting.

your dynamic is how loud your audio is. if its low or all the way down, you will not transmit audio loud enough for people to hear. If its a stock radio and has not been tuned, if you turn it all the way up, that is fine.

Posted on Oct 01, 2009

  • 1274 Answers

SOURCE: cb transmit noise

Its just RF feed back, that's normal, try to re-route the coax, or just turn the FM down, o try turning your modulation down....hope this was helpful....

Posted on May 29, 2010

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Sure would not pay big money for a name.

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