I think you are right with your statement. And this raises some questions without obvious answers to me.
1- Which frequency above 1MHz could be a good choice?
2- If going higher in frequency offers a better penetration (and I believe this), why everyone is going lower in frequency, to have the same penetrating effect? (2.5kHz “penetrates better”, and nobody goes lower (?!?)
3- Dr Hulda Clark , my best reference so far in this zapper`s field, says (TCFAD, pp17):
“The human range is from 1520 KHz to 9460 KHz. Pathogens (molds, viruses, bacteria, worms, mites) range from 77 KHz to 900 KHz. Fortunately for us we can work on zapping pathogens in the lower ranges without affecting humans in the upper range. “
What would be the effect of a carrier of 1MHz++? I don’t know, but I will push experiences on this direction with great care…
I don`t bother killing pathogens on the lower range, but hitting human range, well, actually I avoid this as much as possible (have ever calculate how far (Harmonics) a 40nS rise time can go?)
A last note : 10kHz has very good established reputation as a Rife/Calf frequency to support and help the body to heal. This frequency is easy (and cheap) to build and to use with long, 3 feet leads.
1MHz and above, on the other hand, will be not-so-easy to make with good precision and stability (more expensive), and will be “interesting” to use with the same cables (and I’m not talking about coiled cables, having a good impedance to these frequencies!
1MHz and above? Certainly something to explore and experiment…