GPSDO (Global Positioning System Disciplined Oscillator), 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. It uses the 1PPS signal of GPS. After the microcontroller compares it, the microcontroller outputs 16Bit PWM to control the output accuracy of the constant temperature crystal. The constant temperature crystal frequency fine-tuning voltage is 0-5V, so 1Bit PWM can control the output voltage to 0.000076V. The length, width and height of the whole machine are 150x88x38mm (excluding protrusions). The front panel has a display screen and encoder, and the rear panel has a 10MHz output interface, a 1PPS output interface, a GPS antenna interface, a power switch and a 12V DC power interface. Applicable scenarios:GPSDO is suitable for high-end audio decoders, instruments, meters, frequency meters, signal sources and other devices with external 10MHz reference source input Parameters: Power supply interface: DC5521 Working voltage/current: 12V, 1A (power adapter is not included, please prepare a power adapter for it) Working current: 650mA during preheating, 350mA after stabilization Output frequency: 10.000000.000MHz ±0.01Hz Output waveform: square wave Output amplitude: 10dBm Thermostatic crystal: ISOTEMP OCXO 143-141 GPS module: ATGM336H Colour:black Material:Plastic + Metal The actual product may have slight color difference or difference, which not affect the use Package Contents: 1 x GPS Disciplined Oscillator (power adapter is not included) 1 x GPS antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.