Russian versionVersion for print
  • 140-156 MHz
    Mobile duplexers MDF1-6VM, MDF1-6VL4.5/6
    MDF1-6VL6/8, MDF1-6VL8/10

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    Electrical specifications

    Model MDF1-6VM MDF1-6VL4.5/6 MDF1-6VL6/8 MDF1-6VL8/10
    Operating Frequency
    band, MHz
    148-149/171-173 138-156 138-156 138-156
    Insertion loss
    (adjustable) not more, dB
    0,9 1,3 1.3 1.3
    Frequency separation
    TX/RX (min), MHz
    24 4,5-6 6-8 8-10
    Impedance, Ohm 50 50 50 50
    Isolation, not less, dB 75 80 80 80
    Typical isolation, dB 80 90 90 90
    VSWR, not more than 1.5 1.5 1.5 1.5
    Input power, not more than, W 50 50 50 50
    Temperature Range, В°C from -30 to +50 from -30 to +50 from -30 to +50 from -30 to +50

    Mechanical specifications

    Model MDF1-6VM MDF1-6VL4.5/6 MDF1-6VL6/8 MDF1-6VL8/10
    Weight, kg 0,93 0,93 0,93 0,93
    Connector N-female N-female N-female N-female
    Length/Width/Depth, mm 225x156x32 225x156x32 225x156x32 225x156x32

    Availability of full duplex mobile radio stations on the market has initiated strong interest in duplex filters providing simultaneous operation of mobile station into common antenna. We are producing such devices now. These are mobile duplex filters MDF1-6V and MDF1-6VM for VHF range applicable to telecommunications networks operating in 148/172 MHz frequency range. Compact mobile duplexers are manufactured using six-section helical resonators by rejection design. At frequency separation of 4-6 MHz (MDF1-6VL4.5/6), 6-8 MHz (MDF1-6VL6/8), 8-10 MHz (MDF1-6VL8/10) and 24 MHz (MDF1-6VM) they provide full duplex operation mode of mobile radio stations at minimum loss and standard power output of 50 Watt. Dimensions of MDF1-6V duplexer allow its mounting into the same case with radio station. However, one should notice, that such duplexers are ineffective, when implemented in base stations or at the sites with compromised electromagnetic compatibility.

    Typical duplexers response curves





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