Anritsu MS2830A-040 3.6GHz Signal Analyzer.
The MS2830A is compatible with Anritsu's External Mixer MA27xxC series, enabling millimeter-wave spectrum analysis to 325 GHz. Moreover, with excellent dynamic range, they also support the High Performance Waveguide Mixer options MA2806A and MA2808A for spectrum analysis of millimeter-wave wideband signals.