This is a header used, from one of the F165 files in the below link:
program b vbackfreq c 1024 0 50 program b backfreq a 4 62 duty 70
As of 8/21/2007, the F165 Pad files below have been updated to make use of all three channels of the F165. Channel B is used to run the main program, channel C is used to run the carrier frequency, and channel A provides the pulsing (gating), usually at 4Hz. Note that the F125 has the limitation of not allowing pulsing when a carrier frequency is used, as they are in the F125 Pad files. Some think that this pulsing, usually at 1 or 4 Hz in the Electroherbalism files, may be more important than using a carrier frequency in which case using F100plasma70 files may be more effective for pad device use.
F100 folders are made for plasma devices like Rife-Bare since they don't have a carrier. Plasma devices such as the Rife-Bare have a built-in RF carrier and don't typically run well with an additional carrier provided by the function generator. They can also be used on pad devices although F125/F165 folders may work better on some pad devices since they run the same frequencies with a carrier that is a multiple of the original frequency although the F125 files don't have a pulse.
F125 folders are made for pad devices. Most run frequencies with a carrier equal to 128 times the base frequency.
F165 folders are made for pad devices. They run frequencies with a carrier equal to 1024 times the base frequency.
The exception to these is the F125pad70_70_11th_fuzz1-0333 folder. Instead of 128 times the base frequency, it runs with a carrier 11 times the base frequency. This may work with a plasma device.