Harmonic Helper

A simple calculator to help design VFOs. It takes two frequencies and calculates all the sums and differences of their harmonics up to a specified limit. This can be used to ensure spurious products do not lie in the operational range.

Frequency One Hertz * 10x
Frequency Two Hertz * 10x
Lower Bandpass Limit Hertz * 10x
Upper Bandpass Limit Hertz * 10x