Hi Bernd,
Spain is yet to deliver the second block of spectrum for LTE but in 2020 I imagine all Europe wil have the same restrictions.
I find this page very useful in getting spectrum information for diferent countries:
They update regularly a PDF called "Handout" with licensing and restrictions data. Maybe this wil help. The latest:
On another note... I was (bored in a plenary meeting) looking at the files cloned from your github and I produced a file with Sennheiser G3 A-Band frequency tables with the same .json format as yours, to see it I can star helping out right away.
As soon as I understand how to upload it in git (never done that) you can check it out.
Cheers,
Diogo