Greetings! No the radio has no talk back mods done to it. It has had FM added
along with some upper and lower channels. I have tried all the adjustments I
can think of to keep the powered mics from making it squeal, but with little
success. I love the radio. It has a unique look about it... not a sissy radio
look. I am disappointed with the receive as well and have adjusted it to get
the best receive, but it does not compare with the receive or modulation of
most radios. I have been thinking that I may just take it to a good tech and
see what he can do. Before I do that I want to try to find a good mic to fit
it. I would really like to get a Teaberry mic to make it a completer Teaberry
unit. Any thoughts or suggestions would be appreciated. Thanks! Jon.