[aprssig] APRS geographic coordinates

[Steve Dimse]

On Jul 24, 2006, at 5:52 PM, Curt, WE7U wrote:

> There are two that are currently used for APRS:  One is called Mic-E
> protocol, the other is called Base-91 compression.  They can both be
> found in the APRS Spec.

Don't forget grid-square ;-)

Steve K4HG