[aprssig] KC8UCH balloon over western PA right now, reachingNE Maryland by 10am

['Scott Miller']

Yeah, ask the Mars Polar Lander team about impact detection.  =]

http://en.wikipedia.org/wiki/Mars_Polar_Lander

Scott
N1VG

> -----Original Message-----
> From: aprssig-bounces at lists.tapr.org 
> [mailto:aprssig-bounces at lists.tapr.org] On Behalf Of Gregg Wonderly
> Sent: Monday, April 02, 2007 7:09 AM
> To: TAPR APRS Mailing List
> Subject: Re: [aprssig] KC8UCH balloon over western PA right 
> now, reachingNE Maryland by 10am
> 
> Wes Johnston, AI4PX wrote:
> > Since most trackers only have two mode, maybe a way to shut off the
> > GPS would be via impact sensor of some sort.  Modes 1 and 3 are very
> > similar, maybe there's room here for a compromise that would allow
> > this idea to work with only two modes?
> 
> Depending on density of air, the deployment of the parachute 
> might create an 
> "impact", so be careful about how this happens.  I'd say turn 
> it off based on 
> altitude changes.  If the altitude doesn't change by more 
> than XXX feet between 
> reports, you are down on the ground.
> 
> Gregg Wonderly
> 
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