200W high power carrying Adopt high-quality magnetic core and high temperature wire to stably handle 200W continuous carrier power to meet professional high power requirements. Ultra-low standing wave ratio (Less than 1.5) The standing wave ratio of the entire frequency band is strictly controlled below 1.5, reducing signal reflection loss and improving communication distance and clarity. 1-56MHz ultra-wideband coverage Supports all shortwave bands from 160 meters to 6 meters, one machine for multiple uses without frequent replacement. Precise balanced conversion Efficiently complete 50Ω unbalanced → 300Ω balanced conversion, suppress common mode interference, and improve antenna radiation efficiency. Transformation ratio: 1:6 Input impedance: 50 ohms (unbalanced) Output impedance: 300 ohms (balanced) Frequency range: 1-56MHz (covering the main shortwave communication band) Maximum standing wave ratio (VSWR): ≤1.5 (full-band low-loss transmission) Rated power: 200W (continuous carrier power) Dimensions: 50mm diameter x 130mm length 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.