>>I wonder if you can run more than one program at a time?
I've experimented using the different channels of the F165 to run completely unrelated frequencies. It doesn't work as well as using each one separately, not even close.
JAB
You won't feel the low frequencies with a carrier like you do by themselves but they are penetrating way better. Just because you aren't getting shocked doesn't mean it isn't working. The important thing is the proper kill frequency gets to the pathogens.
Probably a good way to use the F165 is to used one channel for the program as you can't run 2 programs at once from what I can tell. Then run a carrier above 1 MHZ on another channel.
If you want to try other things. A pulse command on the remaining channel. Other commands like sweep, fuzz etc. to the programmed channel are said to be effective.