Features: Broadband amplifier feed circuit, high frequency is affected by parasitic capacitance parameters, the performances drops sharply, so feed needs to use BiasTee. BiasTee consists of wideband, near-idealized, high-frequency inductors and capacitors with no resonant point. Straight capacitor: To isolate DCand prevent leakage of DCvoltage to subsequent circuits or test instruments. High frequency inductors: Isolate ACinformation to prevent high frequency signals from leaking into the power supply system. A.Broadband amplifier Some broadband amplifiers have no straight capacitance inside, and the output needs to be powered and a bias is required. Some amplifiers have built-in isolation capacitors that do not require additional biasing. B. For optical fiber communication, drive current required by the lasers to drive the lasersdiode is injected through the DCend of the biasing device; Communication data is injected through the RF terminal. Specifications: Material: Plastic Size: Approx. 100x45mm/3.94x1.77in Package Includes: 1x RF Amplifier note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.