The MS2035B from Anritsu is a RF Spectrum Analyzer with Frequency 9 KHz to 6 GHz, Resolution Bandwidth 10 Hz to 3 MHz, DANL -162 to -116 dBm, Attenuation Range 10 dB, Third Order Intercept(TOI) 16 to 33 dBm. Tags: Analyzer with Screen. More details for MS2035B can be seen below.