-PA50 50W 3.5MHz-28.5MHz Intelligent Shortwave HF Amplifier with /
PA50 50W 3.5MHz-28.5MHz Intelligent Shortwave HF Amplifier with /. Channels: 2 (2.0) Model Number: sdr Maximum Power Per Channel: 6W color:Black Material:metal+plastic Package Contents: 1 x Portable Shortwave HF Power Amplifier.