Features Rugged and Durable: Made of high-hardness, corrosion-resistant material with an insulated surface, it withstands harsh environments. Precise Fit: Built-in M10 standard threaded connector, made of rust-resistant pure copper, perfectly matches the SO239 base adapter. Wide Compatibility: Designed specifically for USDX QRP series radios, it also supports the PAC-12 and other QRP HF shortwave antennas. Portable Design: Compact and lightweight, it's easy to carry and quickly install outdoors. Enhanced Signal Stability: Optimized structural design reduces signal interference and improves communication quality. Product Overview This red antenna bracket is designed for amateur radio operators and QRP operators. Made of high-strength industrial materials, it combines lightweight design with durability. Equipped with an M10 standard threaded connector and an SO239 insulated base adapter, it's widely compatible with USDX QRP series radios and PAC-12 HF shortwave antennas, making it an ideal accessory for outdoor communications, emergency response, and mobile operations. Technical Parameters Thread Size: M10 standard thread, pure copper. Applicable Devices: USDX QRP series radios, PAC-12 HF antenna and other compatible QRP devices Operating frequency band: HF shortwave band Application scenarios Outdoor amateur radio communications QRP portable operation Emergency communications Field adventure communications Instructions Align the M10 threaded end of the bracket with the bottom of the antenna and tighten clockwise. Securely connect the SO239 connector to the radio antenna port. Adjust the antenna bracket to the optimal angle and secure it in place. Ensure all connections are secure before use. Color: Red Material: Metal Package Contents: 1 x