This module is a one-way amplifier, that is, it can only transmit, not receive. Power supply voltage: 24-28V Frequency range: 600-1100MHz Output power: 8W (P1, Pmax) Heat dissipation method: automatic temperature control active cooling 1) Operating frequency: 600-1100MHz 2) Operating voltage: 24-28v 3) Operating current: 800mA 4) Amplification gain: 30dB 5) Output power: 8W (P1, Pmax) 6) System impedance: 50 ohms 7) Maximum input: 20mW (13dBm) 8) Interface form: SMA-K 9) Air cooling method: cooling Note:Due to different production batches, there are differences in the printing of appearance labels, which not affect the use. Colour:Green Material:Plastic Package Contents: 1 x RF 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.