The R&S SMB-B140 from Rohde & Schwarz is a Signal Generator with Frequency 100 kHz to 40 GHz, Output Power -145 dBm to 20 dBm, Phase Noise typ. -96 dBc to -145 dBc, Frequency Setting time < 2.5 ms, Setting time < 2.5 ms. Tags: Analog Signal Generator. More details for R&S SMB-B140 can be seen below.