The DSA875 is a Spectrum Analyzer from Rigol that operates from 9 kHz to 7.5 GHz that has been developed using their unique All digital IF technology. It has a resolution bandwidth of 10 Hz to 1 MHz, a DANL of less than -157 dBm and SSB phase noise of less than -98 dBc. The analyzer is available in a compact form factor with an 8 inch display.