The RFE-2017021 from RFE is a Frequency Synthesizer with Frequency 11 to 15 GHz, Step Size 5 MHz, Reference Frequency 10 to 20 MHz, Output Power 12.5 dBm, Output Power Variation +/- 2.5 dBm. Tags: Module with Connectors. More details for RFE-2017021 can be seen below.