With a standard Hulda Clark Zapper almost any frequency can be used effectively. The original Zapper used a frequency of approximately 30KHz. Since then many manufacturers have started using lower frequencies because they penetrate better thru the body.
With a product such as the MiniFG, specific frequencies may be selected to offer targeting of certain parasites. When targeting with specific frequencies you have to use a different output wave form and know what you are doing. It’s very different from standard zapping.
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