Item Type: RF Amplifier Input Power: 20-23dBm (0.1-0.2W) Working Voltage: 6-8.4V on typical lithium battery supply voltage. Working Current: 1.6A, maximum. Input Impedance: 50hm Output Impedance: 50hm Input and Output Terminal: SMA K female head. Module Size: Approx. 4 x 5.5cm / 1.57 x 2.17in (excluding protrusions) Module Weight: 58 g / 2.05 oz Power: 8V power supply, output 39.2dBm (8.3W), 66.6% efficiency.1Reliable Work: Can also work below 0.1W, and the output will increase with input increase, and finally get to the maximum power point. 2Practical Use: This unidirectional high frequency power amplifier suits perfectly for fixed gain amplification of various RF signals. 3Wide Coverage: Comes with a large dynamic range and a wide operating frequency range as well, has high work efficiency and stability. 4Better Design: The input is 20~23dBm in 0.1~0.2W, and the output is 39.2dBm with 8.3W, enabling wide application and easy replacement. 5Easy to Install: Designed to have 4 x 5.5cm compact size and 58g light weight as well as SMA K female head, convenient to install.1 x&nbspRF Amplifier