I thought you were going to say that the problem with that was getting the stick back from the dog...
James Ewen wrote: > 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 >>> >>> >>>
