Wow - nice to see a new post!
In this case there is some logic to it I think even with channelized simplex. If you're using perhaps the digital mode of an FTM-400 you could see FM carriers even if your radio doesn't demodulate them to find unused frequencies.Do we really need a scope on a VHF/UHF radio? I don't need another reason to take my eyes off the road. I already put my truck in the ditch doing that (offroad thankfully).