Berkeley Nucleonics Model 7070 is a signal source analyzer that operates from 5 MHz to 7 GHz. It makes reliable phase noise measurements down to -185 dBc/Hz from 0.1 Hz up to 50 MHz frequency offset. The analyzer operates with either internal or external reference sources and has a powerful graphical user interface (GUI). It can controlled remotely via LAN, USBTMC, and GPIB. It can be used in general purpose phase and amplitude noise tests, additive or residual phase noise measurements, time domain and spectrum analysis, cross-correlator FFT analysis and automated production testing.