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  • 136-174 MHz
    Dipole antennas DH1 VHF, DH2 VHF, DH4 VHF

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    DH1 VHF

    DH2 VHF

    Electrical specifications

    Model DH1 VHF DH2 VHF DH4 VHF
    Operating frequency band, MHz 136-174
    VSWR, not more than 1.5
    Gain OFFSET, dBi 5.15 8.15 11.15
    Sector , -3dB:
    in vertical plane 75° 37° 18°
    in horizontal plane 132°
    Impedance, Ohm 50
    Max. power input, W 100

    Mechanical specifications

    Model DH1 VHF DH2 VHF DH4 VHF
    Weight, kg 0.97 2,8 5,6
    Height/Length, M 0.73-0.99 2.25-2,9 5,3-6,9
    Construction material Aluminium alloy, D16T
    Mast diametr, mm 25-55
    Rated wind velocity, m/s 45
    Wind loading area, m2 0.022 0.045 0.09
    Load of side wind 45 m/s, H 25 51 102
    Rated wind velocity with 0.5" icing, m/s 28
    Temperature range, °C from -50 to +50
    Connector SO-239 N-female N-female

    Antenna DH1 VHF is half-wave continuous dipole with shunt power supply (gamma-transformer). It is designed for lateral mounting and array antenna constructing. Antenna has collapsible construction and grounded totally. Tuning is conducted by setting vibrator length according to that specified in supplied diagram. Gamma-transformer usage provides perfect antenna tuning. Steel zinc-coated mounting device provides reliable mounting.
    Antenna DH2 VHF and DH4 VHF is two and four-component array antenna, with DH1 VHF as main structural component. These antennas can be used for circular pattern generation as panel antennas for lateral mount on radiopaque towers. Supplied with adders TK-72V and TK-74V.

    DH1 VHF E-plane pattern

    DH2 VHF E-plane pattern

    DH4 VHF E-plane pattern

    DH1 VHF H-plane pattern

    VSWR diagram, DH1 VHF

    VSWR diagram, DH2 VHF

    VSWR diagram, DH4 VHF

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