I'd seen that there was activity on the 2M and 432MHz reflectors, but I didn't hear anything, or get a hint of Tropo by me. If you really want some good VHF propagational beacons, check all the weather radio FREQ's and hear where they ID from with a scanner radio. About every 3 to 6min they ID their stations. I use to do that with TV stations, when they were analog.