Can I have a technician modify my single channel FRS radio for another channel and higher power?
You might want to consult the FCC Rules and Regulations just to be sure. I think the answer is no. The unit you have, albeit challenged, was “type accepted” in that form. Modifying the radio would void the type acceptance. Voiding the type acceptance means you can no longer use it legally in the FRS. Get a more full featured radio and sell the single channel unit.
