[aprssig] APRS DF reporting

[scott at opentrac.org]

> (with DF code in it).  The APRS software then parses out the DF
> info and the interleaved GPS info and then when appropriate,
> sends the combined single packet containing the DF unit's:
> LAT/LONG/CSE and SPEED
> DF bearing 
> Signal quality 
> Range of the bearing line 

My only question here is what the range is supposed to mean.  How can you
know the range, if you don't know the transmitter power?

Scott
N1VG