View Full Version : Squeal on Transmit

10-11-2020, 02:36 PM
Iím running a Uniden PRO 520XL with a Firestik FS II antenna. My radio is squealing whenever I try to transmit. Any ideas on a fix?



10-11-2020, 05:17 PM
Try a different microphone. If you have a external speaker don't have it close and pointed at the microphone.

10-12-2020, 04:00 PM
I’m starting to think it’s my mic. I unplugged the mic and plugged it back in then did a radio check and I got a loud and clear. The next day a buddy and I were talking and my radio was all good then suddenly the squeal came back. I repeated the process with the mic and it fixed it.

10-12-2020, 05:34 PM
Check your mic connectors for corrosion or loose wires on both ends. those wires they put on Pro520XL are pretty short so they can get stretched to their limit. I bought a Astatic Road Devil power mic to replace the stock mike on my Pro520XL because of the short mic cord. Or you can buy a extension for your stock mic, but make sure you check the wires at the connection first.