Ok, more research (well, fiddling) with the Blind Scan (BS) tool... It's what I bought the card for... Real channel (NTAi on 24.5W) is at : 11675000,V,27500,78 TBS8921 BS Tool finds a channel : 7825057,V,27500,78 I know it finds only the NTAi channel because I set FreqLower=1920000, FreqUpper=193000...