Model 645-8

The Model 645-8 Compact Antenna is a versatile antenna designed for direction finding (DF) and monitoring applications. It features two DF arrays along with a biconical omnidirectional antenna, which serves as both a monitoring and reference element. This combination enables precise signal tracking and robust performance across a wide frequency range.

The DF arrays consist of nine vertically polarized fan elements, all securely housed within a low-loss radome. The radome not only protects the components but also includes a broadband RF switch. This switch commutates signals from the DF elements to an external multi-channel DF or monitoring receiver, ensuring seamless integration with advanced systems. Additionally, the RF switch generates test signals that facilitate DF calibration and automatic system self-tests. These capabilities ensure the antenna maintains accuracy and reliability during extended use, reducing manual maintenance and enhancing operational efficiency.

For added versatility, the Model 645-8 compact antenna can be housed in different configurations to suit various deployment needs. The standard option features a hemispherical radome, ideal for stationary installations.

Alternatively, the antenna can be concealed in a luggage carrier mounted on a vehicle roof, making it highly suitable for covert operations. This flexibility allows the Model 645-8 to excel in both overt and discreet applications, making it a preferred choice for defense, intelligence, and security professionals.

Built to endure challenging environments, the Model 645-8 antenna combines compact design with powerful capabilities, making it a valuable tool for spectrum monitoring and direction finding. Its advanced features and adaptability ensure reliable performance for a range of mission-critical applications, from field operations to covert surveillance.

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