I did try that with both radios very close to a repeater but the other radio was in the vehicle with me. The example given in the previous reply was on the outer perimeter out repeater coverage.
I'd like to know how everything went for you. I'm having the same problem I tried with two radios separated by 1 mile with my son on the other end and only hearing the squelch tail with no voice on either side. Of course with the proper ctcss code and offset programed.