Instruction This product is a high performance 1 2 balun designed specifically for shortwave antenna systems offering a high power handling capacity of 200W It converts a 50 ohm unbalanced input into a 100 ohm balanced output perfectly compatible with QUARD ANT antennas and covering a wide frequency range of 1 56MHz The balun features built in waterproofing and comes with an epoxy resin plate 304 stainless steel eyelets and copper noses ensuring easy installation durability and reliability It is suitable for use in amateur radio communication base stations and other applications improving signal transmission efficiency Specification Transformation Ratio 1 2Input Impedance 50 ohms unbalanced Output Impedance 100 ohms balanced Designed for QUARD ANT antennas ANT Antenna OptimizationFrequency Range 1 56MHz Full Coverage of the Shortwave BandStanding Wave Ratio Less than 1 5 Ensuring Low Loss Efficient TransmissionPower Rating 200W SSB Mode Stable Support for High Load OperationDimensions 57x175mm OD Compact and LightweightWeight 350g Easy to Carry and InstallAccessories Includes an epoxy resin plate and 304 stainless steel hanging ring along with two copper nosepieces for connecting the oscillatorWaterproof Design The balun itself is waterproof users only need to waterproof the M mount and cable connector Dimension 190x55x70mmFeatures 1 High Power and Broadband Compatibility Power rating of up to 200W SSB supports the full 1 56MHz fre