The MG3670B Digital Modulation Signal Generator is equipped with a high-performance quadrature modulator. It outputs the signals needed to develop, test and evaluate digital mobile communications equipment and related devices. It cover the frequency range from 300kHz to 2.25GHz and provides a stable and precise output as will as spectral purity up to a maximum output of +13 dBm, even with modulation. In addition to testing receiver sensitivity and excess input, it can be used for testing IF stage performance and for evaluating device quality. It comes with a MG0301 (PIE)/4 DQPSK modulation unit installed. This is for testing PHS, PDC, PDC_H, NADC and TFTS communication systems.