Well, the F-Scan2 is SUPPOSED to work as a detection/monitoring system and the apply the detected frequency in its 'therapy mode'.
I have read about Dr. Clark's syncrometer but I haven't built my own.
Before forum members critizise me - I do believe (although I don't know) that these things work, Rife machines and EAV or syncrometer devices. But the DIRP function in the F-Scan2 is disappointing. It could be that it didn't show any pathogens since I am quite healthy - at least that is what I think. Read my reply in the message by 2tuff (next in the thread) there are some more comments.