Question about Cobra 19 DX III 40-Channels Base CB Radio

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When pa is on all i get is a shrill noise when i key the mike to talk what is the problem

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TURN DOWN THE VOLUME ! ! ! You are getting feedback thru the mic because the speaker is too close to the mic.

Posted on Nov 20, 2009

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My cobra 29 turns on but i have no sound i can hear it key up and the meter swings speakerand mike are good could it be the finels


Are you sure its not on PA mode? And if the meter swings forwards its not a finale. It could be a bad soldier or IC chip. If you don't have it on PA to see if your IC chip is good take an external speaker plug it into your PA jack in the back turn on the PA switch and then key up the radio.Does it squeal or make any kind of noise if yes the the chip is good if no then there's your problem.If it is good Then its could be just a simple bad soldier.

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My connex 3300 wont transmit anymore and the talk back wont work either,i have tried a different mike and when you key it up the meter still won't swing.


Plug in an external speaker to the pa jack ... Switch the band selector to pa and see if you hear yourself... No? Bad audio chip

Dec 29, 2010 | Connex 3300 240-Channels Base CB Radio

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I just installed a cobra 29 in a customers truck. Radio gets power but cannot get any feedback


Make sure you have the radio on cb not pa, turn the squelch to the left, turn RF gain to max. check the mike and antenna, key the mike, does it key up?....hope this helps....

Mar 11, 2010 | Cobra 29 LTD CB Radio

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When I key the mic the needle on the meter does not move I have power to the radio and the mic is new


Try putting it on cb not pa,see if you hear other people talking,now try it.....could be the mike is not wired right,or bad meter..Put it on channel 19,ask for a radio check,if someone answer,s you its ok, maybe meter not adjusted...hope this helps..

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Shrill noise coming from around distributor.


I is the timing chain inside the engine rubbing on the cover houseing. You need to have the chain or tensioner replaced or both
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PA squalls when mike pushed


Try running a temporary wire for grounding.
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Jun 29, 2009 | Cobra 25 LTD 40-Channels Base CB Radio

1 Answer

Squealing Noise


Hi,

Some radios use the push to talk switch in the microphone to ground the receiver section when transmitting instead of a relay in the radio. There may be a problem with that switch, or the switching circuit in the radio itself.

If you have a PA switch make sure it is in the off position, if on it will squeal like a pig!

Oct 17, 2008 | Connex 4600 Base CB Radio

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