This low noise amplifier module has high gain and can provide very low noise in a wide frequency range. The module is equipped with a powerful shielding mechanism to provide enhanced electromagnetic interference protection, ensuring stable and reliable operation in different environments. It can provide communication between the receiver and the mitter. The amplifier works with a single +5V power supply. It has very good stability, large dynamic range and wide operating frequency range. Fixed gain amplification suitable for various types of RF signals. Operating frequency: 50-4000MHz Amplification gain: 21.8dB (typical) Noise figure: 1.3dB (typical) Maximum power: +22dBm (150mW) @1dB compression point Operating current: 125mA (5V) Supply voltage: 5VDC System impedance: 50 ohms Colour:Green Material:PCB Package Contents: 1 * LNA Board 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.