[Professional: High linearityultra low noise gain block amplifier. High linearity: +35dBm output IP3; high input power ruggedness +22dBm continuous . Stable Performance: RF amplifier ultra bandwidth high reliability not easy to and fall off. Amplifier module with wide frequency range high gain low noise figure unconditionally stable. Parameters: Low noise amplifier module 1.95GHz at 20dB high gain input and output impedance: 50Ω bandwidth: 0.1MHz‑6GHz. Applicable: RF amplifier has excellent performance excellent uniformity and high reliability. It is suitable for shortwave FM radio remote control receiver cable TV amplifier etc. Power Supply: Battery less version needs Bias Tee bias power supply some devices come with bias power supply function such as: for sdrplay 1A.]