Never mind. WIN 10 seems to assign different Com ports to each device even if used separately. Still in learning mode for all this interface stuff.

Trying to use this GPS receiver. Putty shows data streams coming inh correctly, and the GlobalSat software shows correct streaming. However, the bottom APRSIS32 display line shows 12 small squares of satellites received. The line  above is blank white. It will not triangulate a position on the  moving map.

What might  I check to solve this issue?

Spike  N4EBF