The QPDO-I-10-4.97 from Qualwave is a Phase Locked Oscillator with Frequency 4.97 GHz, Output Power 16 dBm, Frequency Stability ±0.1 ppm, Reference Frequency 10 MHz, Supply Voltage 12 V. Tags: Module with Connectors, PLDRO. More details for QPDO-I-10-4.97 can be seen below.