The Krohn-Hite Model 3905C and 3916C GPIB programmable filters deliver exceptional performance for many applications. These proven analog filters have long supported organizations performing a wide range of testing, and its versatile design ensures it will continue to meet evolving testing demands. To understand what makes it so capable, let’s explore its key specifications and features in more detail.
Two types of filter cards are available for the 3905C and 3916C Chassis Systems, each designed for specific applications. The first Card is the Model 34A Filter/Amplifier. It is tunable across a frequency range of 3Hz to 2MHz. It features a rejection rate of 24dB per octave and can be configured either as a Butterworth filter for a maximally flat frequency response or as a Bessel filter for linear phase performance in complex filtering operations.
The Krohn-Hite Models 3905C and 3916C offer a modular, high-performance platform engineered for demanding signal conditioning and test applications. The Model 3905C accommodates up to five plug-in modules, while the 3916C supports sixteen, enabling simultaneous operation of 5 to 32 independent channels. Each channel is fully configurable, allowing precise processing of multiple signals with distinct filter responses. Every module can be exchanged directly in the field without specialized tools, minimizing downtime and ensuring maximum system availability.
Unit programmability further enhances flexibility by allowing users to define, store, and instantly recall multiple filter configurations. Key parameters—such as cutoff frequency, gain, and filter type—can be adjusted manually or via remote GPIB control for exceptional accuracy and repeatability. Frequency ranges can be customized across multiple bandwidths to meet specific test requirements, making these systems indispensable in laboratory and production testing setups.
Partnering with Krohn-Hite means investing in products backed by over seven decades of analog engineering excellence. Since 1949, Krohn-Hite has delivered reliable, serviceable, and precision-built instruments trusted across industries. Whether newly deployed or long in operation, all units are supported with calibration verification, technical documentation, and long-term specification updates. The Models 3905C and 3916C combine versatility, precision, and durability—delivering consistent performance and dependable results for advanced test and measurement systems. To learn more or schedule a demonstration, call 508-580-1660 or contact our technical support team today.
