Fangrui Product Details [enhanced Power Frequency]: Increases The Mission Power From 0.1-3w Input To 30w Output, Significantly Extending The Communication Ability Ranging From 400mhz To 470mhz Frequencies. [two Power Levels For Flexibility]: Offers Two Adjustable Output Power Levels Of 30w And 15w To Accommodate Different Operational Needs. [efficient Half-duplex Operation]: Features Automatic Mit And Receive Switching For Smooth Half-duplex Communication, Ensuring Smooth Itions Between Sending And Receiving Signals. [low Reception Loss]: Maintains A Low Reception Loss Of Db, Minimizing Signal Degradation And Ensuring Clear And Reliable Communication. [compact And Reliable Design]: Operates On A Stable 13.8v Powersupply And Consumes 6a, Making It Suitable For Various Applications And Ensuring Reliable Performance In Various Environments. It Has An Inbuilt Fuse For Safer Use. Name: Power Amplifier Input Power: 0.1-3w Mission Frequency: 400-470mhz Working Mode: Half Duplex Automatic Mission And Reception Conversion (unab