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Individually machined in Evansville, Indiana USA
Fits snug and secure over the factory original telescopic whip
Made of 6061 aluminum
Endorsed by N9KGC
This adapter allows you to use a standard 3/8x24 thread antenna whip, spring, or other adapter / accessory on the Harvest HD330 screwdriver antenna. The HD330 uses a very unusual / proprietary thread making it impossible to use a standard whip or stinger. Only the telescopic antennas that come with it are able to thread on to the coil. This adapter solves that very real problem ! It slips over the the factory telescopic antenna (when fully collapsed) and is secured with a stainless steel set screw. This allows you to thread in a 3/8x24 antenna / whip /spring etc. Fits over the larger of the two telescopic whips that come with the HD330. Does NOT include the cone-shaped stinger adapter that allows you to use a thin steel stinger / whip.