Bill Daniels wrote:
How about something like packet radio? I understand the ARRL has a pretty
widespread network.

I know a few people who are experimenting with it, but repeaters are few
and far between where I fly. Here's what I'm planning on playing with,
but it starts to get expensive to update position more frequently than
every 15 minutes or so:

http://www.sensservice.com/proddetai...100-0149&cat=7

Marc