Found it and tested it .
Its not labeled as STAB but INTERSTAR HH MOUNT mod. GI100 DiseqC 1.2
Must be very old , mayby the serial nr tells the story .
On the scala ± 60º E or W is the max , tested that at diseqc 1.2
Its also working with Usals , I set the Lat and Lon than send it to Reference...
Hi Rima , did'nt notice that curved front edge bevor , glad you pointed me to that .
Later this week I will connect that existing lnb to my satmeter , point the dish to a sat and will see whats comming out .
I know its for one polarisation and has restricted band .
Also want to attach that...