There's a solution at hand. Move to Saskatchewan where you can watch your dog run away for a week.
The only problem left with that solution is getting a reply back from the digipeater. There are very few digipeaters in Saskatchewan. James VE6SRV On 6/14/10, Scott Miller <[email protected]> wrote: > Yeah, that's been my problem with this idea. For units that put out the > Z velocity maybe it'd be more useful, but I'm not certain. Years ago I > started work on a GPS-based variometer for my paraglider but dropped it > when there was too much altitude variation. I never tried the Z > velocity since it's not a standard output. > > Another possibility (that's actually used by varios) is a barometric > pressure sensor. I've got a good supply of those on hand for the > ADS-WS1 weather stations, and if the noise can be filtered out it might > work. > > It occurs to me that you could also add a mode to send a packet when > something is heard from a digipeater - subject to a minimum interval and > with a randomized hold-off. That way you might be more likely to hit a > digi while coming around the side of a hill facing the right direction, > and not just on the top. > > Scott > > Lynn W. Deffenbaugh (Mr) wrote: >> >> >> Before you actually do this, you might want to monitor the altitude >> output on your GPS while sitting still. I've watched various ones of >> mine and they float around by +/- 50 feet routinely. I can see it when >> I drive up over the causeway bridge (the highest point around), but I >> can be driving down the flat road and the altitude is floating up and >> down as if I were in rolling hills. >> >> Maybe it works better in truly hilly or mountainous regions? >> >> Lynn (D) - KJ4ERJ - 30' above sea level in Palm Bay, FL >> >> Pete Lilja wrote: >> > >> > >> > I was driving in Southern Iowa and Northern Missouri over the weekend >> > with my T2-135 connected to a Nuvi 350. I got quite good coverage >> > throughout the weekend. I have Smart Beaconing set and active as I >> > travel yet it occurred to me during the trip that it is only triggered >> > by time or a turn and that often doesn't happen while on top of a hill >> > when the added elevation would give better / more distant APRS >> coverage. >> > >> > That leads me to wonder if, first, it is possible to wrtie a script >> > for the T2 to detect when the mobile has made an elevation increase to >> > truigger a position beacon sent. My thinking is that the script would >> > monitor elevation changes and when the unit began to descend a packet >> > would be sent. This would, of course, miss the peak altitude but may >> > still send a beacon when you're close to being at the top of a hill. >> > >> > I don't remember seeing this in the Smart Beaconing set-up but maybe >> > there is a way to do it there? >> > >> > Thanks, >> > >> > Pete >> > KC0GPB >> >> > > > > ------------------------------------ > > Yahoo! Groups Links > > > >
