Kevin

When AO-27 is in digital mode it is transmitting telemetry, I think you can download the program to decode it on the AO-27 website. I haven't heard the digital on AO-51 but it is probably APRS/Packet and who knows why unless someone decodes it, there was a lot of packet on HO-68 when it was in FM mode but a lot was autobeacons meant for the ISS.

The ISS sounded normal as far as signal strength on Saturday, but I haven't heard it since, the last pass(2140Z) was a high pass and I didn't hear anything on 145.800 or 145.825, can you decode any of the packets you hear? If they are from the ISS the packet will start with RS0ISS-4(or -3 as has been used recently for whatever reason) or the packet will have RS0ISS-4* or RS0ISS-3* indicating it was digipeated by the ISS. The RS0ISS-3 started being used around June 18, but it did use -4 a couple times since

AB9RU