The QAFS-1250-20000-MS from Qualwave is a Frequency Synthesizer with Frequency 1.25 to 10 GHz / 2.5 to 20 GHz, Step Size 0.1 Hz, Output Power 5 dBm, Harmonics -5 dBc, Spurious -60 dBc. Tags: Module with Connectors. More details for QAFS-1250-20000-MS can be seen below.