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        KROHN-HITEϵЮaƷ FڵλãWվ > aƷչʾ > KROHN-HITEϵЮaƷ    
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        Our remote controlled Tunable Active Filters are analog, GPIB, signal conditioning filters that are digitally controlled via the front panel or over the GPIB interface bus. They are frequency discriminating instruments whose signal transmission characteristics are functions of frequency. Their basic function is to pass wanted signals and suppress unwanted signals, according to frequency. All Krohn-Hite filters provide a combination of reliability, performance and economy.

        Other Filter Products
             General Purpose Tunable Filters  |  Signal Conditioning Systems  |  Fixed Frequency Filter Modules  |  Fixed Frequency Filter Systems

        SELECTION GUIDE

        Model

        Model 3900
        Elliptic
        Filter

        Model 3901
        Elliptic
        Filter

        Model 3940
        Butterworth/Bessel
        Filter

        Model 3944
        Butterworth/Bessel
        Filter

        Model 3945
        Butterworth/Bessel
        Filter

        Model 3955
        Butterworth
        Filter

        Model 3988
        Butterworth/Bessel
        Filter

        Remote Controlled Dual Low-Pass Elliptic Filter Model 3900

        Remote Controlled 2 Channel Elliptic Filter Model 3901

        Remote Controlled 2 Channel Filter Model 3940

        Remote Controlled 4 Channel Filter Model 3944

        Remote Controlled 3 Channel Filter Model 3945

        Remote Controlled Dual Low-Pass Filter Model 3955

        Remote Controlled 2 Channel Filter Model 3988

         

         

         

         

         

         

         

        Attenuation Rate

        115dB/Octave

        115dB/Octave

        24dB/Octave

        24dB/Octave

        24dB/Octave

        24dB/Octave

        48dB/Octave

        Independent Channels

        2

        2

        2

        4

        3

        2

        2

        Cutoff Frequency

        1Hz to 99kHz

        1Hz to 99kHz

        3Hz to 2MHz

        3Hz to 2MHz

        3Hz to 25.6MHz

        170Hz to 25.6MHz

        0.03Hz to 1MHz, LP
        0.03Hz to 300kHz, HP

        Responses

        Elliptical

        Elliptical

        Butterworth, Bessel

        Butterworth, Bessel

        Butterworth, Bessel

        Butterworth

        Butterworth

        Functions

        LP *

        LP, HP *

        LP, HP, BP, BR *

        LP, HP, BP, BR *

        LP, HP, BP, BR *

        LP *

        LP, HP, BP, BR

        BP, BR Channels

        None

        1

        1

        2

        1

        None

        2

        Input Type

        SE **, Differential

        SE **, Differential

        SE **

        SE **

        SE **

        SE **

        SE **, Differential

        Input Volts

        ±10V peak

        ±10V peak

        ±4.5V peak

        ±4.5V peak

        ±4.5V peak

        ±1.5V peak

        ±10V peak

        Output Volts

        ±10V peak

        ±10V peak

        ±6.5V peak

        ±6.5V peak

        ±6.5V peak

        ±3V peak

        ±10V peak

        Pre-Filter Gain

        40dB in 10dB steps

        40dB in 10dB steps

        20dB

        20dB

        20dB

        20dB

        50dB in 10dB steps

        Post-Filter Gain

        20dB in 10dB steps

        20dB in 10dB steps

        20dB

        20dB

        26dB

        26dB

        20dB in 0.1dB steps

        Data Sheet

        Data Sheet

        Data Sheet

        Data Sheet

        Data Sheet

        Data Sheet

        Data Sheet

        Data Sheet

        Manual

        Operating

        Operating

        Operating

        Operating

        Operating

        Operating

        Operating

         *  LP = low-pass, HP = high-pass, BP = band-pass, BR = band-reject; Band-pass and band-reject require 2 channels.  ** SE = Single-Ended

        ̩Q޹˾ @ Ԓ(+8610) 8406 7150]䣺sales@torion.cn Wվ䰸̖ICP12014174̖ onWj
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