What is the advantage of using 2.5khz on this Zapper

To Quote Dr Clarke:-

2.5khz is a more effective frequency.

According to information available from the study of “Radionics”, bacteria such as anthrax, chlamidia, shigella, and e. choli have spectral responses between 392 and 398 kHz. This would be near the 13^th harmonic of 30 kHz, and near the 157^th and 159^th harmonic of 2.5 kHz. The 13^th harmonic has an amplitude of 1/13^th of the main frequency and the 157^th harmonic has an amplitude of 1/157^th of the main frequency. The tradeoff of amplitude vs. closeness to the needed frequency has to be weighed in considering desired results.

Some believed that the higher the frequency, the greater the skin effect. That is higher frequencies tend to travel along the surfaces of the body and lower frequencies tend to penetrate better. For this reason, many believe that the lower frequencies are more effective against intestinal parasites, urinary infections, and other infections that tend to occur in the various body cavities.

It might just be that the 30kHz frequency does not produce harmonics close enough to the parasite’s frequency since its harmonics are 30 kHz apart while the lower frequency has harmonics that are only 2.5 kHz apart. Regardless of the reason, many users feel that the 2.5 kHz frequency is more effective.