GPS clock.Dog gps tracker distributors

　　GPS clock is also a basic time service application product developed based on the latest high-precision GPS positioning and time service module. Capable of outputting time information formats that meet user requirements, thereby completing synchronous time service. Its main principle is to tame the crystal oscillator through GPS or other Satellite navigation signals, so as to achieve high-precision frequency and time signal output, which is the most effective way to achieve nanosecond time service accuracy and stability at 1E12 frequency output.

　　Due to the precise temperature control of the constant temperature crystal oscillator, the crystal operates at a temperature of zero temperature coefficient point, with high frequency accuracy and stability, making it the highest frequency stability among quartz crystal oscillator devices. The frequency accuracy of a crystal oscillator refers to the deviation between its actual operating frequency and its nominal frequency, and the deviation caused by accuracy can introduce cumulative errors to the measurement system. Whether it is a chip mounted crystal oscillator or a plug-in crystal oscillator, frequency stability refers to the instantaneous stability within a second level interval, which is the random change in frequency caused by the "phase noise" of the crystal oscillator. Instantaneous stability usually introduces random errors to the measurement system. This device adopts a new type of high stability constant temperature crystal oscillator OD02-5T, with a frequency accuracy of 10-8 and a frequency stability of 10-11. The frequency adjustment range is voltage adjustment (0-5V) to -9 × 10-7/8 × 10-7, this adjustable characteristic enables this constant temperature crystal oscillator to achieve frequency accuracy of 10-9 through GPS calibration

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