Broadband high gain: covering 10KHz to 3GHz, with a low-frequency gain of 32dB, meeting the requirements of wideband signal amplification. Gain adjustable: When the supply voltage is 5-8V, the gain changes linearly with the voltage, and automatic gain control (AGC) can be achieved through to simplify circuit design. Low noise and high stability: When powered by 8-10V, it combines low noise coefficient and high stability, making it suitable for sensitive receiver front-end. Band lower limit extension: The default lower limit is 0.1MHz (0.1 F capacitor), which can be extended to 5KHz by replacing the input and output capacitors (such as 10 F) to meet extremely low frequency applications. Excellent gain flatness: The gain fluctuation in the frequency band below 500MHz is less than 1dB, ensuring signal consistency. 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.