The QPDO-E-25-18 from Qualwave is a Phase Locked Oscillator with Frequency 18 GHz, Output Power 13 to 15 dBm, Reference Power 7 to 13 dBm (Input), Reference Frequency 25 MHz, Supply Voltage 12 V. Tags: Module with Connectors, PLDRO. More details for QPDO-E-25-18 can be seen below.