Got it, thanks again. I just watched a video on the difference between GMRS and Repeater channels which helps make sense of how the tone filters work. Another question related to this, and maybe a bit too technical, but I understand that repeater channels have two frequencies, one for receive, one for transmit. When you choose a repeater channel, you are transmitting to their receiving channel. It then repeats the signal and transmits it on a different frequency with a 5 mhz offset that your radio is ready to hear. Why is it that you don't hear your own voice played back when you speak into a repeater then? Or am I misunderstanding this somehow