My son used his THD-72 radio to report the position/status of
every one of the dozens of runners on the 40 mile Appalachian
trail run across MD.
He started at the end and just hiked back to the start.. Starting at the
end,, they were spread out enough that he only ran into one or 3 at
a time. He maintained a Position STATS text. And manually entered a runner
number each time he saw one and when there was a gap, he hit SEND.
Thise packets documented where runners were and when.
Or could do it with a message. The message would have a list of
runners and the TIME of transmission. This time and list is then
correlated with the reporter's position.
You only get one report per runner (usually nearing the end), but enough
to provide for last-known position knowledge.
I have a web page on this but would have to look for it.
bob
