Blind scan selects a satellite to scan, a C Band or A KU Band typed satellite; that is, each type of satellite must be set-up differently, so to scan a satellite, the receiver tunes the LNB set-up for the satellite selected, which are parameters like switch settings, lnb lo, and freq./sr range to blind scan. For it to do it's job, all this pertains to one satellite, typed and held as ONE SATELLITE.
Therefore, a switch setting cannot change to a different one. A C/KU satellite is really two satellites to your receiver, so you must scan each seperately with the correct sw/freq.+sr range/lnb lo...setting programmed for each already set in memory as seperate satellites, then select one or the other to "blind scan", or is that Blind search?
Anyways, blind scan is really just the scanning of a freq. range, one or both polarity's, and a Symbol rate range of ONE SATELLITE, already programmed with it's LO, position, LNB type, and Switch setting that selects it.