The N9030A-550 from Keysight Technologies is a RF Spectrum Analyzer with Frequency 3 Hz to 50 GHz, Resolution Bandwidth 1 Hz to 3, 4, 5, 6, 8 MHz, DANL -158 to -100 dBm, Dynamic Range -87 to -82.5 dB, Phase Noise -158 to -80 dBc/Hz. Tags: Analyzer with Screen. More details for N9030A-550 can be seen below.