Krohn-Hite 3945 3Hz to 25.6MHz High-Pass/Low-Pass Butterworth/Bessel Programmable Filter
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Krohn-Hite 3945 3Hz to 25.6MHz High-Pass/Low-Pass Butterworth/Bessel Programmable Filter



This Krohn-Hite 3945 3Hz to 25.6MHz High-Pass/Low-Pass Butterworth/Bessel Programmable Filter is used and in excellent condition.



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Stock # 85100-1
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Krohn-Hite 3945 3Hz to 25.6MHz High-Pass/Low-Pass Butterworth/Bessel Programmable Filter

Features
  • (3) Independent Channels
  • 24 dB/Octave Input/Output Gain Attenuation Slope
  • Typically < 250µV Referred to Input Noise
  • GPIB Remote Control
  • By-Pass Mode

Description

The Krohn-Hite 3945 3Hz to 25.6MHz High-Pass/Low-Pass Butterworth/Bessel Programmable Filter provides one Butterworth channel of low-pass, tunable over the range from 170Hz to 25.6MHz; and two independent Butterworth or Bessel channels of low-pass, high-pass or bypass, one channel of band-pass or band-reject, tunable over the range from 3Hz to 2MHz.

The 3945 has been specifically designed for applications requiring high frequency band-pass filtering. The high cutoff may be set to any frequency between 170Hz and 10MHz, and the lower cutoff to any frequency between 3Hz and 2MHz.

One channel of the 3945 can operate as a low-noise amplifier, bypassing the filter, delivering a bandwidth of 50MHz and gains up to 46dB. This is useful to users wanting to increase the gain of the signal and improve signal-to-noise ratio before filtering. The other two channels of the 3945 furnish Bessel or Butterworth transfer functions and can be programmed to operate as two low-pass, high-pass, one band-pass or band-reject filter with gains to 40dB per channel.

The 3945 offers 99 groups of non-volatile memory for storage of front panel set-ups, which are stored in battery-backed CMOS. Set-ups can be recalled with a simple command. Self-test diagnostics occur upon power-up insuring that all internal memory is operating properly. If a failure occurs, the display will indicate which ROM or RAM has failed.

The 3945 can provide filtering for many applications such as: high frequency anti-aliasing for digital signal processing, EMI testing, video recording and many more. The Model 3945 has been carefully designed with the user in mind, providing ease of operation, reliability and price competitiveness.


Product Family: 3945


Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.


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Krohn-Hite 3945 3Hz to 25.6MHz High-Pass/Low-Pass Butterworth/Bessel Programmable FilterKrohn-Hite 3945 3Hz to 25.6MHz High-Pass/Low-Pass Butterworth/Bessel Programmable FilterKrohn-Hite 3945 3Hz to 25.6MHz High-Pass/Low-Pass Butterworth/Bessel Programmable Filter
Krohn-Hite 3945 3Hz to 25.6MHz High-Pass/Low-Pass Butterworth/Bessel Programmable Filter


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Manuals, Datasheets, Drivers, Links

Krohn-Hite 3945 Datasheet (pdf) 
Krohn-Hite 3945 Manual (pdf) 
Link to Krohn-Hite Website 


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