The BFO is a conventional oscillator which runs at the I.F. frequency of the
receiver. The frequency is generally variable by = or - 3kHz by means of a
front panel control. Coupling between the BFO and the detector is via a small
capacitor, around 5pF.
The BFO injects a signal to beat with the IF to produce a beat note which is
audible (the difference between the two frequencies).
The BFO is a conventional oscillator which runs at the I.F. frequency of the
receiver. The frequency is generally variable by = or - 3kHz by means of a
front panel control. Coupling between the BFO and the detector is via a small
capacitor, around 5pF.