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  • 136-174 MHz Dipole antennas DA2 VHFA, DA2 VHFS

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    136-174 MHz Dipole antennas DA2 VHFA, DA2 VHFS

    Electrical specifications

    Model DA2 VHFA DA2 VHFS
    Operating frequency band, MHz 136-174 136-174
    Frequency bandwidth, MHz 38 38
    VSWR, not more than 1,5 1.5
    Gain, dBi 6,7 6.15
    Sector in E-plane , -3dB 38° 38°
    Sector in H-plane , -3dB 240° 240°
    Impedance, Ohm 50 50
    Max. power input, W 400 400
    Polarization vertical

    Mechanical specifications

    Model DA2 VHFA DA2 VHFS
    Weight, kg 17 25.62
    Size, mm 2440x610x40 2440x610x40
    Construction material Aluminium alloy (A) Stainless steel (S)
    Temperature range, °C from -50 to +50
    Connector N-female N-female

    Especially for areas with a harsh climate in the Far North, two-dipole antennas were developed. The antennas are made of all-welded construction with an internal addition system and offered in two models: aluminum (A) and stainless steel (S) for harsh Arctic conditions.
    Thanks to modern computer modeling and measuring instruments, these antennas have a very wide band as agreed (see diagram), which has a positive effect on the quality of communication during icing. Each copy of the antenna before shipment passes the output control at factory.

    VSWR diagram DA2 VHFA

    VSWR diagram DA2 VHFS

    H-plane pattern DA2 VHFA

    E-plane pattern DA2 VHFA

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