tbs electronics TBS6909 - Adapter and Channel Mapping in Tvheadend

TBS6909 Multi Standard Tuner Card User Guide
7.6 Set the“Delivery System”to DVBS2 and Modulation（See screenshot below.）
7.7 Enter adapters Tv, select the LNB port you want to play, open the TurboSight,
and set the reference map to save（See screenshot below.）