UDP into SignalK - Who sees the mistake?

[Oben]

I changed it into 

Since you can change the data why not send Signal K?

I did try for a couple of hours several artificial signal K-Sentences like the first on this site:

https://signalk.org/specification/1.7.0/...model.html

The code shows up in the Signal K-Server log but not on Dashboard.

Do I need a certain plugin to make it work? Or can anybody give a small example which should show up on the Dasboard?

Would be great.