Question about Uniden Bearcat PC 78 XL CB Radio

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Fuse for uniden pc78 ltw - Uniden Bearcat PC 78 XL CB Radio

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2amp to max of 5amp.. anything bigger will not protect the radio.if anything happens.

Posted on Feb 04, 2015


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Adjusted mag mount antenna w/a swr meter. When checked it w/the meter on the '06 uniden pc78 elite, ch 40 was a lot higher. Which is correct ?

The coax jumpers between the meter and the radio can change the SWR a little bit. It is very unlikely the the antenna can be that low on 1 and 40. Set it for the lowest on 20 via the radio and as long as you are under a 2 on 1 and 40 then it should be OK.

Oct 10, 2016 | Uniden Radio Communications

1 Answer

I have a galaxy dx 959, just started not sending or receiving! Tried a new mic, still nothing! Hooked up my old uniden pc78 elite and it works fine using same hookups!

try changing the mic,the Galaxy and the uniden are interchangeable . If that doesn't work then it could be a cold solder point,or the final,or the driver,if so change both, or a capacitor or maybe an IC. Check the easiest first then go to the next and so forth. Does the radio even turn on and light up. Use common sense and eliminate what works then go to what doesn't.

Mar 22, 2016 | Uniden Radio Communications

1 Answer

Uniden pc-68 ltw stuck in weather band.

there is a capacitor ,I think its c801 that you have to cut .cb should be restored.unless you want wx.

Aug 19, 2012 | Radio Communications

1 Answer

What adapter do i need to connect a uniden bearcat pc78 elite inside my home

Hi Ray,

This is a mobile CB radio. According to the manual, it requires 13.8VDC @ 2.2Amps. You will need to provide an AC (house or alternating current) to DC (direct current) power supply capable of providing 13.8V at 2.2 Amps. This means the supply would be working at 100%, so obtaining a supply that would provide 4, 5 or more amps would be much less stressful on it and significantly reduces the chances of a 60 cycle hum present in the receive and transmit audio.

A representation of 13.8VDC @ 4A power supplies can be found here for $40 and up. Of course, you can go to a local electronics store and find them too. Check eBay for these, too - here.

You should be looking for a power supply that will provide 12 - 13.8 volts DC, and provide 3, 4 or more amps. The amp capacity is what will change the price - the more amps the higher the cost. You may see small "switching" power supplies - they are smaller, lighter & cheaper than traditional linear or transformer based types - so if that is the type you want to get you might want to get one that is a little bigger (5 or 6 amps) than the transformer type to get the same performance.

I hope this helps & good luck!

May 06, 2012 | Uniden Bearcat PC78 Elite 40-Channel CB...

1 Answer

Looking for a place to download the schematics for the pc78 elite
Not familiar with the Elite series i believe it is the PC78 repackaged with orange lights.
Either way the cobra 29 and Uniden PC78s are roughly 90% the same radios Until you get to the Chrome cobra and LX and 50th anniversary the later being the same except the mic and some stickers oh and the price.

Sep 09, 2011 | Uniden PC78ELITE 40-Channels Base CB Radio

1 Answer

Need service diagram

The service manual is the same for the Cobra 25 LTD. Both have the same boards and specs.

Glad to help out,

Dec 26, 2009 | Uniden Bearcat Pro PC68XL 40-Channels Base...

1 Answer

Power cable for uniden pc 68 ltw


I'm not sure where you are located, but this accessory is available directly from the manufacturer on the Uniden Direct webstie at:

Best Regards,
Go Ahead. Use Us.

Apr 21, 2008 | Radio Communications

3 Answers

Uniden pc78ltw

The pc78 is the same chassis as the cobra 29 so any info you san find on the cobra 29 will work the same for your pc78..What kind of problem are you having?? Chia

Dec 23, 2007 | Uniden Bearcat Pro PC78LTW 40-Channels...

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