[aprssig] Balloons again

[Tom Hayward]

On Thu, Oct 13, 2011 at 10:05, Al Wolfe <alw.k9si at gmail.com> wrote:
>   Of course, probably the best option would be to turn off or minimize any
> paths above say 5k feet. A simple aneroid device could switch the TNC. Or it
> could be done with a PIC looking at GPS altitude data.

No need to get that fancy. An OpenTracker+ can have two profiles, each
with different paths, and can switch between profiles based on
altitude, speed, temperature, voltage, analog input, digital input,
and/or GPS fix. It's all built in and not expensive.

Tom KD7LXL