MG3672A operates from 300 to 2.75 GHz. It provides a stable and precise output as well as spectrum purity up to +13 dBm, even with modulation. In addition to testing receiver sensitivity and excess input, they can be used for testing IF stage performance and for evaluating device quality. A CMOS-level mode is provided for I/Q signal input. The input frequency band covers the CDMA spread spectrum band, expanding the range of applications.The MG3672A can be expanded by rear panel extension connectors to use for auxiliary signal output functions special to communication system. MG3672A can be used in combination with up to eight modulation units and a burst function unit simultaneously.