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25-512MHz VHF UHF Wideband Omnidirectional Antenna

Antenna for jammer

25-512MHz VHF UHF Wideband Omnidirectional Antenna

The antenna ZD-VUA-25/512M-NF is a wideband low-weight dipole ("center-fed") VHF/UHF antenna for frequency range from 25 to 512 MHz, mainly intended for use in manpack portable radio units. Applicable to VHF and UHF bands, both adopt dipole design to provide stable radiation characteristics. The radiating element is made of composite material with high strength and wear resistance to maintain performance in harsh environments. Supports multiple installation methods.

    product detail

    VERSIONS: 

    ZD-VUA-25/512M-N: antenna with N female connector

    ZD--VUA-25/512M-G-N: antenna with N female connector and active GPS antenna (L1) in the antenna base

    ZD-VUA-25/512M-BNC: antenna with BNC female connector

    ZD-VUA-25/512M-G-BNC: antenna with BNC female connector and active GPS antenna (L1)

    in the antenna base

     

    The ZD-VUA-25/512M-NF antenna is a broadband VHF/UHF antenna designed for heavy-duty mobile applications, offering superior performance and durability, covering a wide frequency range from 25 MHz to 512 MHz. Here are some key features and components of this antenna:

     

    Features

    1. Broadband Coverage: Available in both VHF and UHF bands, no ground plane is required, ensuring consistent electrical performance (gain and VSWR) across all bands.

     

    1. Dipole Design: A dipole design is used on both VHF and UHF frequencies, providing stable radiation characteristics.

     

    1. Rugged: The radiating element is made of a composite material, which provides high strength and abrasion resistance to maintain performance in harsh environments.

     

    1. Anti-UV Coating: The antenna radiator is coated with a military green two-component anti-UV coating for enhanced weather resistance.

     

    1. Flexible Mounting Options: Supports multiple mounting methods, and different colors and connectors are available upon request.

     

    Main Components

    1. Antenna Base

    Material: A combination of aluminum and durable plastic ensures lightweight and strong.

    GPS Option: GPS L1 or L1/L2 receiver module can be integrated.

    Shock-absorbing Design: Equipped with large stainless steel springs to absorb shock and vibration, protecting the antenna system.

    Mounting Holes: Four NATO-compliant mounting holes distributed on a 4.5-inch (114.3 mm) diameter circumference for easy fixing on the vehicle.

    1. Mast Antenna Base

    Construction: Consists of two stainless steel connectors and a hard polyester tube with an outer diameter of 42.7 mm.

    Mounting Compatibility: Equipped with a special mounting console adapter, it can adapt to poles with a diameter of up to 60 mm, suitable for a variety of mast mounting scenarios.

     

    Applications

    Due to its powerful performance and various mounting options, the ZD-VUA-25/512M-NF antenna is ideal for:

    - Public safety communications

    - Military and government applications

    - Mobile communications for heavy equipment and vehicles

    - Field operations requiring wide bandwidth and high reliability

     

    In short, the ZD-VUA-25/512M-NF antenna is an ideal choice for heavy mobile communications applications with its excellent performance and durability.

    Model

    ZD-VUA-25/512M-NF

    ELECTRICAL SPECIFICATIONS-VHF/UHF

     

    Frequency range

    25 - 512 MHz

    Impedance

    50 ohms

    VSWR

    < 3.5

    Gain

    typ. -6 ..... +0.5 dB(1/4 wave whip)

    Polarization

    vert.

    Maximum power

    100 W CW

    Connector

    N female (BNC female optional)

    ELECTRICAL SPECIFICATIONS - GPS

     

    Frequency range

    L1 1575.42 +/- 10 MHz

    Impedance

    50 ohms

    VSWR

    < 2

    Polarization

    RHC

    LNA Gain / Voltage / Current

    18 dB (+/- 2 dB) / 5 V / 19 mA

    16 dB (+/- 2 dB) / 3.5 V / 13 mA

    10 dB (+/- 2 dB) / 2 V / 7 mA

    Noise fig.

    <1.5 dB

    Connector

    SMA female

    MECHANICAL SPECIFICATIONS

     

    Design

    End fed whip (VHF/UHF); patch antenna with LNA(GPS)

    Height

    2.75 m

    Weight

    3.8 kg

    Max. high voltage rating

    16 kV

    Temperature range - in use

    -50 ... +55 ℃

    Temperature range - in stock

    -55 ... +75 ℃

    Wind rating

    45 m/s (160 km/h)

    Color

    MIL Green

     

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