[Elecraft] Operating FT8 portable with KX3 - GPS time sync question

[Barry N1EU]

I don't know if very many portable ops out there are using FT8.  I'm
piecing together a portable FT8 setup for my KX3 and I'm hoping to use a
Bluetooth GPS receiver to provide accurate time sync to a Windows tablet.
If anybody out there is already doing this, can you please tell me what
software you're successfully running under Windows to link the GPS data
with the system time?

Thanks & 73,
Barry N1EU