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[aprssig] Satellite Predictions requires a) Beacon and b) Messaging IGate

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Tue Oct 18 23:37:13 UTC 2011

Thank you for that link!  That's the kind of detail I've been looking 
for before completely re-inventing this particular wheel.

However, that design makes the assumption that DIGI_NET is on the local 
RF and I need to do more thinking about how to extend it to a global 
system as provided by APRS-IS.  I'll see what I can do to bring some of 
that relevant information into upcoming changes (like maybe the date 
being with the zulu time to qualify just how old the forecast is, if I 
can ever be truly swayed away from a delta time).

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32

On 10/18/2011 1:56 PM, Bill Vodall wrote:
> On Tue, Oct 18, 2011 at 9:11 AM, Bob Bruninga<bruninga at usna.edu>  wrote:
>> I'm still a little uncomfortable with the time formats:
>> AOS in 6:45h for 9:50m MaxEL 27
> The digi_ned scheme for this, with absolute times, has been in use for
> years and works very well...
>    http://digined.pe1mew.nl/?What_DIGI_NED_does:Satellite_tracking
> Bill
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