High Frequency Power Amplifier Experience seamless signal transmission with our advanced power amplifier. Designed for enthusiasts and professionals alike, this amplifier offers top-notch performance without the need for complicated setups. Key Features: Auto Switch Mode: No special PTT line needed. Automatically switches to transmit mode when signals are input. Efficient Cooling: Built-in powerful fan activates when the temperature reaches a set threshold, ensuring prolonged service time. Compatibility: Perfect for USDX FT-817, Elecraft KX3, QRP, FT-818, G90, G90S, G1M, X5105 Ham AMP. Wide Frequency Range: Operates across 3~24MHz with a transmission and pulling power of 1~5W. Specifications: Material: Metal Operating Frequency: 3~24MHz Transmission and Pulling Power: 1~5W Output Power: 50W Interface Impedance: 50Ω Operating Voltage: 13.8V Package Size: 180 * 100 * 20mm / 7.1 * 3.9 * 0.8in Package Weight: 300g / 10.6oz Packing List: 1 × Power Amplifier Optimize your signal transmission with this reliable and efficient power amplifier. Perfect for a wide range of applications and compatible with many popular devices in the market.