Question about Cobra 150 GTL DX Base CB Radio

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WANT TO ADD TALKBACK IN A RADIO

I HAVE A UNIDEN PRO 510 CB RADIO IT HAS NO PA DOES ANYONE HAVE A CLUE OF HOW TO ADD TALK BACK IN THE RADIO

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  • Anonymous Mar 13, 2014

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    I have a CB radio Uniden Pro 520XL and inside is damaged coil with name LB1 112 Please help me find because in Poland ispossible

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A 200 ohm 1-watt resistor across pins 1 & 4 of the mic jack will make some talkback. More or less resistance will make less or more talkback. Note the association of less and more.

Posted on Jan 23, 2009

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I Want To Add Talk Back Mod To CB Radio


there is what is known as the Quick and Dirty way, to add talkback to almost any CB radio. You will need a 130 Ohm 1/4 watt resistor. Open the radio and find the two mounting points for the external speaker jack and PA audio jack, you will want to solder the resistor across from the Positive connection of the PA jack to the Ground connection for the External speaker jack. This will give you talkback, and eliminate any feedback when the microphone is held at a normal operating distance away, Just remember, (This could potentially damage your radio if done improperly, I will not be held liable for anything that you do to your radio.) However, when done correctly this is a perfectly safe modification, and will allow you to monitor your output audio, as it is being transmitted. You can adjust the size of the resistor to your liking, however, I do not recommend anything lower than 100 Ohm, as there will be more potetial for squealing/feedback.

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My galaxy dx 88 hl works great but the talk back won't work on am but does work on pa what is wrong


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I want talkback on my cobra 29ltd classic radio how do i do this myself


Open the case on your radio. Solder a 100 ohm resistor between the pa jack and ext speaker jack. You can add a switch if you like to turn it on and off. The lower the resistance, the louder the talkback.

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ADD TALKBACK TO A UNIDEN 510 WITHOUT A PA JACK


In theory you could locate the AUDIO pin from the back of the mic jack, and add a resistor from there to the center pin of the ext speaker jack in the same manner as you would a PA jack.  But look into more before you do as I have never done it that way and Unidens sometimes have a funky way of wiring their boards.  If I had one laying around I would try it out but I don't.  best of luck!

Jan 22, 2009 | Cobra 150 GTL DX Base CB Radio

2 Answers

Scematic


Hi there!!

If you have an echo board what kind is it? I can give you the connections and where they go it just depends on which echo board you have!! I can also tell you where that talkback goes!! Let me know

Dennis

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1 Answer

257 Talkback


use a talk back ext. speaker.

Apr 12, 2008 | Magnum 257 CB Radio

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