4-in-4-out 698-4000MHz bridge, commonly used in RF and microwave applications to connect multiple signal sources and loads for testing, calibration and debugging. Its frequency range is from 698MHz to 4000MHz and can support most common wireless communication standards and frequency bands, including LTE, Wi-Fi, cellular communication, etc.
4 in and 4 out means that it has four input and four output ports, which can realize connection and switching between various signals. This type of bridge is commonly used in laboratory, engineering and production environments to ensure signal accuracy and stability.