The QPDO-I-100-4.8 from Qualwave is a Phase Locked Oscillator with Frequency 4.8 GHz, Output Power 16 dBm, Frequency Stability ±0.1 ppm, Reference Frequency 100 MHz, Supply Voltage 12 V. Tags: Module with Connectors, PLDRO. More details for QPDO-I-100-4.8 can be seen below.