I just did this mod to my Uniden PC68:
Adding talkback to your radio - and easy modification for beginners
Really simple mod and my power mic doesn't feed back.
I really like this radio! I was transmitting from my driveway to about 3 miles away. My Cobra 19 was always dead as a doornail at home.
My SWR was:
0 on 1
.2 on 10
1.6 on 40
I'm goin' with it.
Weather radio is pretty cool!