On closer inspection I'm finding a few FM spurs with it. Our KPAC and KSTX show several SCA carriers - others may as well but don't go to dead air often/long enuf to so easily see that. The ASCII pagers between 72-76 MHz show well as do aircoms (and ATIS) over 118 MHz. I need some screen capture software on that machine (it came with a 1 TB HD so lots of room for such ) I've yet to explore UHF with the CM-4228 on it yet.
73, Pat - WA5IYX