The QPDO-I-100-4.8-1 from Qualwave is a Phase Locked Oscillator with Frequency 4.8 GHz, Output Power 27 dBm, Frequency Stability ±0.1 ppm, Reference Frequency 100 MHz, Supply Voltage 12 V. Tags: Module with Connectors, PLDRO. More details for QPDO-I-100-4.8-1 can be seen below.