BRL TEST INC.

Electronic Test Equipment

Below Budget - On Time - Above Expectations
Search our test equipment


 

World Class Repair Lab

Our 67 ghz enabled lab performs free repair evaluations for your equipment.


 Learn More 

Timely Results

Fastest turn around in the industry.



 Learn More 

Manufacturers

Join our Newsletter

See the Videos

3901 - Krohn-Hite Tunable Filters


Contact for Quote

  • Model: 3901
  • Manufactured by: Krohn-Hite
  • High end frequency limit: 99.00kHz
  • Channels: 2
  • Operation Modes: LP
  • Extra Specifications: Low-Pass/High-Pass Tunable Active Filter

The Krohn-Hite Model 3901 programmable, two channel Elliptical filter/voltage gain amplifier is one of a family of new programmable filters from Krohn-Hite. It was carefully designed with the user in mind, providing ease of operation, reliability and price competitiveness. All backed with the quality which Krohn-Hite has provided in  filters since 1949.

As an elliptical  filter, the Model 3901 has two filter channels that have a tunable cutoff frequency range from 1Hz to 99kHz and a rolloff rate of 115dB/octave. Each channel can be used independently; one as a high-pass filter and the other as a low-pass filter; or the channels can be externally connected for band-pass (series) or band-reject (paralleled) operation. Each filter section has a minimum stopband attenuation of >80dB and a passband ripple of typically 0.22dB.

The 3901 provides either a single-ended or differential input with a common mode rejection of >60dB. Input gains to 40dB in 10dB steps and output gains to 20dB are also provided. The 3901 will accept input signals of ±10V peak at 0dB gain and has selectable ac or dc coupling. The filter is GPIB Bus programmable and is complimented with non-volatile memory for the storage of up to 99 front panel set-ups. Overload detectors are standard and assist the user in detecting excessive input signals or incorrect gain settings.

The 3901 is also a programmable voltage gain amplifier for applications that require a low noise amplifier. The amplifier has a bandwidth of 1MHz and gains to 60dB, selectable in 10dB steps, and a wideband noise of <100µV.

Your IP Address is: 54.80.102.170