UHF stainless steel tapered whip, 400-520 MHz, field tune, 50W, 5/16″-26 brass female thread, 2.1 dBi – 250mm

Product Code: M42T

$43.95

The ZCG Scalar M42T is a precision-engineered, ground-dependent UHF mobile whip designed for high-reliability communications within the 400-520 MHz spectrum. Unlike generic, fixed-length alternatives, the M42T is a field-tuneable 1/4 wave radiator, allowing technicians to achieve a perfect VSWR match for specific LMR, TETRA, or UHF CB frequencies. This flexibility makes it an essential component for fleet operators and RF installers who require a bespoke resonance profile rather than a "best-fit" wideband compromise. Constructed from high-tensile 17-7PH stainless steel, the whip features a distinct tapered profile. This engineering choice is critical for mobile deployments; it provides the ideal balance of aerodynamic stability and mechanical flexibility, allowing the whip to deflect from obstructions without permanent deformation or "whipping" fatigue. The base is terminated with a high-durability 5/16"-26 TPI brass female thread, ensuring seamless compatibility with standard Australian mobile mounts, including the OB-4.7 or MGB-OB magnetic bases. The chrome-plated brass ferrule provides a robust, low-impedance connection that resists environmental oxidation in high-exposure roof-mount applications. From a performance standpoint, the M42T delivers a consistent 2.1 dBi gain when mounted to a sufficient ground plane (such as a vehicle roof), providing a reliable omnidirectional pattern that excels in urban "canyon" environments and hilly terrain where higher-gain, compressed-lobe antennas might suffer from signal overshooting. With a 50-Watt power rating, it is perfectly spec'd for commercial-grade mobile transceivers. For the professional seeking a ruggedised, Australian-made alternative to other units on the market, the M42T offers superior material longevity and the exact mechanical footprint required for a "drop-in" high-performance upgrade.