ZN3 super heavy-duty black 'barrel' spring base, x-large, UHF male connector, suits ZN3 -11 or -12 series

The ZN3-SB-L-BLK is a super heavy-duty black barrel spring base and cable assembly designed specifically for ZCG Scalar ZN3–11BLKR and ZN3–12BLKR series detachable antennas. Built for demanding UHF CB and AM/FM applications, this extra-large spring base provides superior vibration resistance and mechanical strength in harsh mobile environments.

Finished in durable black for a cohesive, low-profile appearance, the ZN3-SB-L-BLK is ideal for 4WDs, fleet vehicles, work utes and off-road installations where antenna durability is critical. The heavy-duty barrel spring absorbs shock and constant movement, helping protect the radiating element and maintaining consistent performance across 477 MHz UHF CB radio systems.

The assembly features an integrated UHF male connector, ensuring reliable electrical continuity and secure connection to compatible ZN3 detachable whips. Installation requires a 13 mm mounting hole or suitable bracket with a 13 mm aperture, using the supplied stud and split nut located at the base.

Whether replacing a damaged unit or upgrading for more rugged service, the ZN3-SB-L-BLK offers a dependable, heavy-duty black spring base solution for professional-grade UHF CB, 4G LTE/5G cellular or AM/FM antenna setups.