Harmonic Receivers

A conventional radio receiver is designed to be able to tune accurately to a single frequency without interference from other frequencies (narrow bandwidth). Dealing with a single frequency at a time makes presentation of frequency information straight forward. Ideal when the signal required is always at the same frequency and broadcasting for long periods, like a normal radio station.

A Harmonic radio receiver is designed to listen to multiple frequencies at the same time, which allows it to cover a very wide frequency range very quickly. Ideal for finding a transmission when you don't know the frequency and have limited time to find the signal. It doesn't matter that any captured signal could be on a number of frequencies, The actual frequency of the transmission is irrelevant, if the signal is a bug, you want to know where it is and what it is transmitting.

For an explanation of Harmonic Receivers click here.