[aprssig] APRS presentations

[Robert Bruninga]

> Attached... is a PowerPoint - 8.6Meg.  
> It is from Bob's FrostFest 08 with 
> considerable modification. 

That orginal APRS-by-bob file was huge due to unknown Microsoft
*bloat*.  It was later re-saved in only 3+ megs.  It won't have
your changes, but it does have my significant revisions since
then through my most recent presentation at DCC.  It is at the
top of the new www.aprs.org site.

Bob, Wb4APR