SD90 90mm Diameter Magnet Mount – SO239 UHF Female Base + 4m (13.1ft) RG58 Cable (for Car Radio Antenna)

Characteristic
The 90mm diameter adsorption platform, constructed with N52-grade neodymium iron boron permanent magnets and a 3mm thick low-carbon steel magnetic base, creates a vertical adsorption force of up to 180kgf, ensuring stability during high-speed driving. The base integrates a SO239/UHF female connector that complies with the MIL-STD-348 standard. Through a triple-plating process (nickel plating on the bottom layer, copper plating on the middle layer, and silver plating on the top layer), the contact resistance is achieved to ≤5mΩ, and the voltage standing wave ratio (VSWR) is maintained below 1.25:1 in the 430-470MHz frequency band.

Core Performance‌
Achieving a drag coefficient of 0.18cd at 100km/h, it reduces wind noise by 42% compared to traditional designs. A 3mm-thick UV-resistant silicone buffer layer is applied to the bottom of the magnet, protecting the paint while maintaining an IP67 rating and withstanding temperature cycling tests from -40°C to +85°C.

NOTICE

During the installation process, avoid any collisions.

It is strictly prohibited to disassemble the antenna components; otherwise, it may lead to poor antenna performance.

The installation position of the antenna should be free of any obstructions.

When used outdoors, it is necessary to equip with lightning protection facilities.

may contain electronic components. Do not discard them randomly.