The R&S SMB-B120L from Rohde & Schwarz is a Signal Generator with Frequency 100 kHz to 20 GHz, Output Power -20 dBm to 12 dBm, Phase Noise -122 to -128 dBc at 10 GHz, Frequency Setting time < 2.5 ms, Setting time < 2.5 ms. Tags: Analog Signal Generator. More details for R&S SMB-B120L can be seen below.