[aprssig] Digipeater Symbol Overlays

[Bill Vodall]

> APRS goal is situational awareness.  Digis have a code field for identifying
> over 36 flavors of Digi.  If a digi performs differently than others, then
> we should identify that difference.
>

In all these years - the only thing I asked was - who digipeated me.
The aprs.fi display and raw packet listings showed that.   What kind
of digi it was has never mattered.   KIS  (Keep it simple)

 Bill