Playing with Mics today (RE20/ShureSM7B) and my Studio Projects VTB1 also. After an hour of playing with them, NOW there is NO RF power coming from the meter. I am being heard on the air, so did I push something by accident. New to the 6500, so Thank you for your time and patience. Mark
Also, check mic gain etc.
Just some quick suggestions. The 6500 is a great radio.