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  • 300-360 MHz
    Dipole antennas D1 ALT, D2 ALT, D4 ALT, D8 ALT

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    300-360 MHz  Dipole antennas D1 ALT, D2 ALT, D4 ALT, D8 ALT

    Electrical specifications

    Model D1 ALT D2 ALT D4 ALT D8 ALT
    Operating frequency band, MHz 300-360
    VSWR, not more than 1.5
    Gain OMNI, dBi 2.15 5.15 8.15 11.15
    OFFSET, dBi 5.15 8.15 11.15 14.15
    Sector in vertical plane , -3dB 70° 37° 18°
    Impedance, Ohm 50
    Max. power input, W 400

    Mechanical specifications

    Model D1 ALT D2 ALT D4 ALT D8 ALT
    Weight, kg 1.7 3.8 8 16.5
    Height/Length, M 0.4 1 2.2 4.6
    Construction material Aluminium alloy
    Mast diametr, mm 38-65
    Rated wind velocity, m/s 45
    Wind loading area, m2 0.032 0.065 0.13 0.26
    Load of side wind 45 m/s, H 37 75 150 300
    Rated wind velocity with 0.5" icing, m/s 28
    Temperature range, °C from -50 to +50
    Connector N-female

    Antenna D1 ALT represents folded Pistolcors dipole. It can be used in Altay and Volemfrom systems, river craft radio communication and for telemetry. Collapsible construction enables easy antenna mounting and dismounting. Emitting unit directional pattern can be slightly corrected by changing distance from it to mast. All-welded dipole design eliminates possibility of intermodulation. Antenna has reliable polymeric coating, which protects from hostile environment and icing. All-metal structure provides reliable lightning protection.
    D2 ALT, D4 ALT and D8 ALT antennas are built along parallel addition of two, four and eight collinear arranged active folded dipole powers principle.



    D1 ALT H-plane pattern, OMNI (l/2λ)

    D1 ALT H-plane pattern, OFFSET(l/4λ)

    D1 ALT H-plane pattern, OFFSET(l/8λ)

    VSWR diagram, D1 ALT

    VSWR diagram, D2 ALT

    VSWR diagram, D4 ALT


    VSWR diagram, D8 ALT


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