Connex 4600 turbo the talk back

This is a 10 meter Amateur Radio. You need a license to operate it. From my research it doesn't do CB Radio Frequencies.

Here says
Frequency Range 10 Meter 28~29 MHz
https://www.walcottradio.com/connex-cx-4600-turbo-150-watt-10-meter-amateur-radio-p-2505.html

and here shows your unit doesn't go low enough

26.960-27.410 MHz This Radio Standards Specification (RSS) sets out general requirements for, and provides information on, the certification of radio apparatus that is used for the general radio service, also known as the citizens band (CB), operating in the 26.960-27.410 MHz frequency band.

https://www.google.com/search?q=connex+4600+turbo+cb+channel+guide

https://www.google.com/search?q=Connex+4600+turbo

I have CX-4600-T too. Mine gets way hot as well, I had a mod kit installed n it swings 215W peak power now. But the excessive heat is annoying, I think mine does have a fan in it though cause I know I felt air coming out the back before.

4600 turbo? 3300hp? never heard of a 3300 turbo

3300 https://www.bellscb.com/products/tenmeter/connex/manuals/Connex_CX-3300HP_OM.pdf

4600 turbo http://www.manualslib.com/manual/966347/Connex-4600-Turbo.html

4300 hp and turbo Owners Manual

Are talking PA or inside speaker?

it is network connecting wires problem.

probably something to do with the PCB and maybe a cut in the trace.

Strange. You shouldn't have a squealing problem with an RK56 noise canceling mic.

Unfortunately there is no way to change the volume of the talkback. Its too loud. The only solution is to turn the mic gain down.

The only reason you need to have talkback on is to check your audio. Make sure the echo is good and what not. After that you really don't need it on. So turn down the mic gain, then check the echo, then turn off the Talkback and turn the gain back up.

The squeal is feedback from the talkback being to loud and being heard by the mic. So the only way to solve it is to lower the volume of the talkback, (Which is not possible in this radio) lowering the mic gain(which lowers your audio level) or turning it off.

have you tried CB Tricks .com they should have what you're looking for if you take your time to find it there.

Bad RX/TX Transistor? I don't have a diagram for the 4600. Sorry!

i have the same radio turn talk back off and there is enough power ull have talk back through you trucks radio speakers and it needs to be hooked up to the battery with at least 12ga wire