PositionSource / locationDisplay on Win 7 Rugged Tablet

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Hello, I am trying to support a "find my location" feature for our users, on a Windows 7 ruggedized tablet with embedded GPS. Please see the following for specs...
https://www.xploretech.com/us/bobcat-rugged-tablet-pc/

On mac and iOS all is fine. When I run on this Win device I get output like....
positionSource.valid=true
positionSource.active=true
Non-satellite-based methods are supported.
positionSource.name:WindowsLocationPlatform
PositionSource.NoError
currentPoint.x:NaN, currentPoint.y:NaN

As you can see it "seems" as though everything is fine until I try looking at X/Y and it comes back with NaN. I did see on this Qt Positioning documentation that only serial port with NMEA sentences is supported for Windows...
https://doc.qt.io/qt-5.11/qtpositioning-index.html

So I did start researching that and found this online about using SerialPortNmea....
https://community.esri.com/thread/174075

When I try name:"SerialPortNmea" and run on this Win tablet I get...
positionSource.valid:true
positionSource.active:true
Satellite-based positioning methods such as GPS are supported
positionSource.name:SerialPortNmea
PositionSource.NoError
currentPoint.x:NaN, currentPoint.y:NaN

So as you can see, I am unable to get the location either way. Totally baffled!

Is positioning not supported on Win 7 based tablets with embedded GPS?