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  • 140-174 MHz
    Intermodulations filters IMF8-1V-50S-R/2(X/2),

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    140-174 MHz  Intermodulations filters IMF8-1V-50S-R/2(X/2),  IMF8-1V-50D-R/2(X/2)

    Electrical specifications

    Model IMF8-1V-50S-R/2(X/2) IMF8-1V-50D-R/2(X/2)
    Operating frequency band 140-174 MHz
    Insertion loss, dB 0,9 1,3
    Impedance, Ohm 50
    Attenuation see fig.
    VSWR, not more than 1,5
    Input power, W 50
    Isolation ANT-TX not worse, dB 30 75

    Mechanical specifications

    Model IMF8-1V-50S-R/2(X/2) IMF8-1V-50D-R/2(X/2)
    Diameter of cavity, mm (ins.) 206 (8")
    Weight, kg 3,6 3,75
    Temperature Range, В°C -30 to +50
    Connector N-female, 7/16 DIN (optional)

    Intermodulation filter IMF8-1V-50S-R/2(X/2), installed in transmitting section, will provide low loss signal passage, attenuate out-of-band transmitters radiation, preventing signals induced to antenna from penetration to transmitter output stage. Single isolator in this filter can be used, when distance between neighboring antennas does not exceed 10 О» across or exceed 2 О» at coaxial vertical arrangement of antennas. For short distances IMF8-1V-50D with double isolator must be used.

    The ferrite isolators of Regular (R) class provide an operation of the intermodulations filters or transmitting link in temporal regime of exploitation with TX/RX =1:5, i.e. when the working load onto the transmitters of your system is not high. The ferrite valves of Extreme (X) class are being applied in the case when repeaters operate with enhanced load (up to 100% of the cycle). These are more expansive and highly reliable products with the valves based upon the radiators (which do not allow the ferrites to become overheated) and for massive carrying out (external) loads.

    Typical gain-frequency characteristics IMF8-1V-50S

    The information provided on this page is not an official offer.
    To verify actual parameters contact the sales department before ordering.