So I just got an Icom IC-207 from a friend that recently passed. I was able to get everything programmed, but it will not send tone to the repeater. I've checked all the settings and they appear to be correct. I've also listened to the offset channel and it is transmitting there correctly and it works great on simplex. Every once in a while it will send tone, but it is so random that I can't tell what was done differently. I've cleared the CPU a couple of times and tried again, but it still will not send tone reliably. So my question is, could the problem be with the radio or possibly the mic?