Krohn-Hite 3103 Features:
- Pass-band gain is unity (0 dB)
- Attenuation rate of 24 dB per octave
- Maximum attenuation 80dB with an amplitude of 3 V rms and output hum and noise is less than 150 µV
- Insertion loss: 0 dB ±0.5 dB
The Krohn-Hite 3103 Variable Bandpass Filter operates in the frequency range of 10Hz to 3MHz. The frequency characteristic of this filter very closely approximates a fourth-order Butterworth with maximal flatness for cleanest filtering in the frequency domain.