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  • 140-174 MHz
    Narrowband duplexers DPF5-3V, DPF5-4V, DPF5-6V

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    DPF5-3V

    DPF5-4V

    DPF5-6V

    Electrical specifications

    Model DPF5-3V DPF5-4V DPF5-6V
    Operating Frequency band, MHz 140-174
    Insertion loss (adjustable) not more, dB 1 1 1,5
    Frequency separation TX/RX (min), MHz 5 4 2
    Impedance, Ohm 50
    Isolation, not less, dB 35/70 55 63
    VSWR, not more than 1,5
    Input power, not more, W not more than 300
    Temperature Range, В°C from -30 to +60
    Cavity electrical length 1/4О»

    Mechanical specifications

    Model DPF5-3V DPF5-4V DPF5-6V
    Diameter, mm (ins.) 128 (5")
    Weight, kg 6,5 8,45 12,35
    Connector N-female
    Mount to 19-inch rack yes
    Length/Width/Depth, mm 800x480x138 800x480x265

    It is more effective to use bandpass duplexers, which cavities are tuned to pass receiver frequencies (in receiver circuit) and transmitter frequencies (in transmitter circuit), instead of band pass-reject duplexers at considerable receiving and transmission frequency separation. Having higher filtration capability, duplexer DPF5-4(6)V will handle out-of-band emission attenuation better. These duplexers classical application is two militia radio stations 148 and 172 MHz combination. In the last case triple-cavity duplexer DPF5-3V is applicable.


    Typical duplexers response curves

    DPF5-3V

    DPF5-4V

    DPF5-6V


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