High power and broadband compatibility: Power resistance up to 200W (SSB), support 1-56MHz full frequency band, meet the high intensity requirements of shortwave communication, stable signal without interference Precise impedance conversion: 1:2 transformation ratio realizes 50 ohm unbalanced to 100 ohm balanced output, specially optimized for QUARD ANT antenna, improves antenna matching efficiency and reduces signal reflection. Excellent performance indicators: Standing wave ratio is less than 1.5, maximizes energy transmission efficiency, reduces loss, suitable for professional radio applications Waterproof and : Pre-set waterproof measures, users only need to deal with external interfaces; compact size and light weight, easy for outdoor deployment and mobile use When directly connecting the antenna vibrator, use the included copper nose to fix it; after installation, apply waterproof glue to the M seat and cable connector to enhance protection. Suitable for amateur radio stations, emergency communications and base station construction to improve the performance of your antenna system. to experience efficient and stable shortwave communication solutions! Efficient impedance matching (1:4 conversion ratio): Accurately convert input 50 ohms (unbalanced) to output 200 ohms (balanced), greatly improving signal transmission efficiency, reducing energy loss, and ensuring clear communication without interference. Wide frequency band coverage (1-56MHz): Supports shortwave full-band applications, seamlessly switching from low frequency 1MHz to high frequency 56MHz, suitable for multi-scenario communication needs, such as amateur radio, ship communication or field operations. High power tolerance (500W power tolerance): Adopting industrial-grade materials and heat dissipation design, it can stably handle 500W high-power loads, avoid overheating damage, and equipment safety and . Low standing wave ratio (less than 1.5): Optimized circuit design, the standing wave ratio is controlled below 1.5, significantly reducing signal reflection and loss, and improving the overall performance of the antenna system. Multi-scenario applicability: Optimized for shortwave communications, it is widely used in amateur radio, emergency broadcasting, communications, outdoor adventure and scientific research to improve signal stability and coverage. Transformation ratio: 1:4 Input impedance: 50 ohms (unbalanced) Output impedance: 200 ohms (balanced) Frequency range: 1-56MHz Standing wave ratio (VSWR): less than 1.5 Power handling: 500W (continuous operation) Dimensions: OD 57mm x Length 175mm Weight: 350g Operating temperature: -20C to +70C (standard industrial range) Connector: Standard N-type interface Color: As Shown Material: plastic Package Contents: 1 * Balun Antenna kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.