Adopt attenuated fiber, with good performance Simple and compact structure, easy to install, Stable performance and high reliability High reflection loss and low insertion loss Application: For control power level: Control the output power of the local oscillator in the microwave superheterodyne receiver to obtain the best noise figure and conversion loss, and achieve the best receiving effect. In microwave receivers, automatic gain control is implemented to improve dynamic range. For decoupling element: acts as a decoupling element between the oscillator and the load. For relative standard: As a relative standard for comparing power levels. For hopping attenuator used in radar anti-jamming: it is a variable attenuator with a sudden change in attenuation. Usually, no attenuation is introduced. When encountering external interference, it suddenly increases the attenuation. 100% New and High Quality. Colour:Silver Material:Metal Package Contents: 2 * Adapter 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.