I just chucked together a simple PosiStageNet decoder script for AVIO, giving you access to the following values from a PSN Tracker:
It's a little hacked together at the moment, but it's very fast to grab the values off the network.
Grabs the raw Multicast UDP traffic, so it takes no configuration. Listens on 188.8.131.52:56565
Currently only reads Tracker 0.