Maybe someone will correct me if I'm wrong, but I'm not aware of a TsReader Source capable of tuning the MH signal (yet). When ya tune with the standard ATSC source, that's what you'll get. The stream as demodulated in standard ATSC 8VSB mode. In other words it's transparent to the normal ATSC signal.
I may have to check up on the linux developers again to see if they made any more progress on this device adding MH support in linux. Far as I know the guts are in the kernel now, but SW tools have yet to be written to go along with it. Scanning, zapping and such have to do their piece as well.
DB8E/VHF Yagi rotor FM Bandstop ap-8700 preamp 8way split LG lcd.