[aprssig] Garmin GPS35

[scott at opentrac.org]

> I don't know if this is the fix, but I remember sometime back 
> a similar problem with a Garmin where the "Bread crumbs" 
> tracking were used up.  If you reset the Bread Crumbs or 
> reverse track or what ever it's called you should start 
> tracking again.

I think the GPS35 is one of the older 'mouse' type units with no user
interface.

Scott
N1VG