Figured I'd break this off from the ISS thread. I've officially re-configured my iGate to work as a standard APRS i-gate, just to see how it performs. Within 30 seconds of switching it over to 144.39, it already snatched 2 packets (neither of which is shown on aprs.fi, I'm assuming because typically I am not the "first heard".... not sure if I ever will be, but I figured I'd let it run and see what happens - edit: got a "first heard" from a local club digipeater while I was typing). I did this because after running for 24 hours, there wasn't a single successful capture of a packet originating from space (and there were several 60deg + passes). I'm assuming that the sensitivity of the RTL-SDR combined with the less than perfect ground plane are contributing to that). Not giving up, however. I'm going to finish my eggbeater antenna and re-try, and may attempt the ground plane antenna with a cheap TV amp as discussed in the ISS thread. I'll update here, feel free to discuss your own igates (as well as mine).