I tried to use w_scan for creating the initial tuning data for other scanning utilities. Finally I created them by hand and succesfully used dvbv5-scan, which found almost hundred channels. Here are the details of a sample channel: [TVP 1] SERVICE_ID = 101 VIDEO_PID = 101 AUDIO_PID = 102 108 PID_06 = 106 PID_05 = 152 FREQUENCY = 546000000 MODULATION = QAM/256 INVERSION = AUTO SYMBOL_RATE = 6900000 INNER_FEC = NONE DELIVERY_SYSTEM = DVBC/ANNEX_A I tried in particular the following parameters: w_scan -fc -c PL -x w_scan -v -fc -c PL -t 3 -x w_scan -vv -fc -c PL -i 0 -t 3 -x w_scan -vvv -fc -c PL -i 1 -t 3 -x w_scan -vvv -fc -c PL -Q 1 -S 0 -i 1 -t 3 -x Here are the excerpts from the output of the last call: