Cobra Microtalk pr4200

Question for the experts:
We’ve got a set of cobra pr4200’s, one shows TX while the other shows RX. The one showing tx appears locked, thinking its set on a VOX type setting but can’t get it to function beyond its current state. No manual so I have nothing to consult …
any help appreciated !


We have the manual for the 4000.

It might help a bit. We do not have one for the 4200 I am sorry to say. :frowning: