Filter Networks: Signal type - Passive Lowpass, Highpass, Bandpass, and Bandstop LC networks designed to meet the most stringent requirements for stability, attenua­tion as well as amplitude and delay equalization over the frequency range from DC to 100 MHz. A steepness factor of 1.02:1.00 with 60 dB minimum attenua­ tion is achieved. We also design and build and extensive range of bandpass filters for "safety critical" railway applications, POTS split­ ter filters for ADSL applications and cus­ tom filters and line simulators for test equipment.

Signal type - Active Lowpass, Highpass, Bandpass and Bandstop networks designed using biquads, follow the leader feedback, signal flow or gyrator tech­ niques. We also supply switched capaci­ tor filters and have supplied active fil­ters which are stable over the tempera­ ture range -10 to +60°C. Power type - Filters for conducted RFI. We offer custom design units to meet particularly difficult applications, includ­ ing currents in excess of 350 amps.