Fangrui Product Details Gpsdo, Also Known As Gps Disciplined Constant Temperature Crystal Oscillator, Gps Disciplined Clock, 10mhz Standard Signal Source. Compared With Ordinary Time Base, It Has Higher Accuracy, Lower Temperature Drift And More Stable Output. Using The 1pps Signal Of Gps, After The Microcontroller Compares, The Microcontroller Outputs 16bitpw To Control The Output Accuracy Of The Constant Temperature Crystal. The Constant Temperature Crystal Frequency Fine-tuning Voltage Is 0-5v, Then 1bit Pwm Can Control The Output Voltage To 0.000076v. Gpsdo Is Suitable For High-end Audio Decoders, Instruments, Meters, Frequency Meters, Signal Sources And Other Devices With External 10mhz Reference Source Input. The Device Has A Compact Appearance Design And Is Easy To Integrate Into Devices. The Front Panel Is Equipped With An Intuitive Display Screen And Encoder For User Operation And Monitoring. The Rear Panel Provides A Wealth Of Interfaces, Including 10mhz Output Interface, 1pps Output Interface, Gps Antenna Interface,