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The Krohn-Hite Model 3945 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.
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Frequency Range: 3Hz to 25.6MHz
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Bessel/Butterworth
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Attenuation Slope:24dB/Octave
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Input/Output Gain
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Noise:Typically <250µV referred to input
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Remote Control: GPIB
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