Question about Uniden Bearcat Pro PC78LTW 40-Channels Base CB Radio

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I cant ajust my cb for talking

I have a uniden PC78LTW cb and i dont know how to adjust it so others can hear me , which sucks when your looking for info on a scle etc. I'm a company driver so the radio isnt mine, the atennas were just replaced. the radio was set up for me when i got into the truck a couple of months ago. Somebody screwed with it when the atennas were replaced. I can here people but nobody can here me. I've tried calibrating it but it doesn't seem to be working and i'm pretty sure i'm doing it wrong. Any information would be greatly appreciated. thank you.

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  • mlewis9258 Nov 20, 2008

    same problem, no sound.



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Turn it to channel 20, flip the switch to CAL, key it up and tune it by the SWR knob to the set position, which it a small red triangle. With the mic still keyed, flip the switch to SWR and see where it reads. If its over like 2 on the meter its your antenna tuning. You can complete the rest of the test by doing the same on 1 and 40. But if your that far off you can do the calibrate test all day long and never get it right. Ask one of the other drivers to take a look in between loads or something like that. Its more than likely either improper antenna tuning or a ground plane issue. Not a big deal just frustrating.

Posted on Mar 26, 2009


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