Thank you very much Ernst,
So it seems that my LM is ~ 3.1-3.5 for basic service and almost 0 dB for HVs-1, less than what Eumetsat recommends but it works for basic.
The first thing to do; enhance the pointing of my dish (1.2m). I will stay on TBS-IP Tools, it works for me.
Thank you again for these explanations and recommendations.
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