A wobbler is a generator whose output frequency changes in an adjustable rhythm. The output signal of the wobbler is a constant-amplitude AF signal or RF signal that changes continuously in frequency between a lower and an upper cut-off frequency, which is also referred to as a sweep.
The sweep range, i.e. the frequency range between the lowest and the highest sweep frequency, is adjustable, as is the output level or the sweep speed at which the frequency band is swept. Wobbling is used exclusively in quadripole measurement technology and is intended to investigate the amplitude behavior of quadripoles at different frequencies. In this context, the determination of the passband curves of filters and bandpass filters, of amplifiers, cables, demodulators, devices and systems of audio and RF technology up to microwave technology are to be mentioned.