Expedition Navigation Software / NGT-1 on Win11Arm with Exp

**Posted by sparky** 7/25/2025 10:10 am

I'm having trouble after an emergency upgrade to a NGT-1.

My previous USB/NMEA interface was dead when I got to the boat this morning to start race prep.
I was able to source an NGT-1. After some work I was able to get the drivers installed and get it working with Actisense tools and NMEA Reader.

However, Expeadition only shows the port as closed. I have reboot several times but nothing has worked!

HELP!

**Posted by sparky** 7/25/2025 10:44 am

It seems to be a ExpArm issue. I installed the Navionics x64 build and that was able to open the com port.

**Posted by Nick** 7/25/2025 12:48 pm

Actisense doesn't have an ARM64 DLL.

I have asked, but ...

The best solution for ARM is a Digital Yacht iKonvert.

**Posted by sparky** 8/04/2025 7:55 am

Thanks - I was able to race running he x64 version of Exp to use NGT-1 for the fastnet.
However, some of the insturments weren't reporting to expedition correctly --- the most anoying was the BSP was roughly 80%.
I don't know if this was an artifact of running the x64 in an emulated environment or if it is an NGT-1 issue or an issue on our mostly B&G NMEA2k setup.

**Posted by Nick** 8/04/2025 12:46 pm

Unless you have calibration set in Exp, the bsp will be the value being received from the network.

If you have multiple sensors, you need to select the correct one.