I've recently been playing with
the Automatic Packet Reporting System (APRS),
a way to share local information of immediate value in real time.
I've been trying to improve the APRS coverage in south London by running
my own iGate to relay APRS messages to the internet.
You can find out the last position that my
reported via APRS. You can also see a summary of reports from
associated with my callsign.