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 various 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, power switch and 12V DC power interface, which meet the needs of different application scenarios. GPSDO is widely used in high-end audio decoders, instruments, meters, frequency meters, signal sources and other devices with strict requirements on time accuracy. Power supply voltage: DC 12V ± 2V Working current: 650mA during preheating, 350mA after stabilization Output frequency: 10.000000.000MHz 0.001HZ Output waveform: square wave Output amplitude: 10dBm Thermostatic crystal: ISOTEMP0CX0143-141 GPS module: NE0-6M Colour:Black Material:Plastic Package Contents: 1 * GPSDO 1 * 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.