[Enhanced Power & Frequency]: Increases the transmission 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 transmit and receive switching for smooth half-duplex communication, ensuring smooth transitions between sending and receiving signals. [Low Reception Loss]: Maintains a low reception loss of 1dB, 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 use. Name: Power Amplifier Input power: 0.1-3W Transmission frequency: 400-470MHz Working mode: Half duplex automatic transmission and reception conversion (unable to receive in transmitting state) Receiving loss: 1dB Output power: divided into high and low levels, 30W/15W respectively Supplying voltage: 13.8V Working current: 6A Colour:Silver Material:Aluminum Alloy Package Contents: 1 Amplifier 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.