[aprssig] HP Calculator program for APRS

[gerheim at cox.net]

I just upgraded an astronomy and satellite tracking  program for the HP-50G 
calculator.  It now uses the serial port to realize some APRS features.  
 
It was intended for the Kenwood TH-D7A(G) HT, but can be used with almost any 
APRS rig.  
 
See http://members.cox.net/above and http://members.cox.net/above/ABOVE2.html 
for details.  
 
The intended application is for extremly portable APRS.  If you're backpacking 
or canoeing in remote areas, it might allow you to leave the PC behind, but 
still get most of its functionality.  
 
It's mostly for satellite use.  It'll set off alarms in the calculator (which 
may be powered off) which will start and stop an APRS beacon when a specific set 
of satellites is visible.  It'll permit fixed or moving position reports.  
 
I'm looking at upgrades which will allow better display of incoming data 
compared to the HT itself.  
 
I'm looking for suggestions.  The screen is 12 lines by 33 characters, and it 
gives you a little more real-estate, and a more buttons, than the HT.  The 
interface can be somewhat enhanced compared to the bare HT.  It'll also allow 
you to store and view incoming data.  
 
 
-- 
-Al Gerheim, K1QN