What's a radio clock like? Is there one in China?

Radio-wave clock is an electronic clock in Shi Ying, which has the functions of receiving radio long-wave signals, data processing and automatic correction, so that it can receive the standard time signal sent by the ground transmitting station. After receiving this accurate time code, each radio-wave clock can automatically correct the travel time error of Shi Ying electronic clock after being processed by the data processor.

The time of each radio clock is controlled by a unified and accurate time code, thus achieving the consistency of high-precision measurement time and display time of all radio clocks.

there are radio clocks in China.

April p>22: During the Shenzhen Watch Exhibition, Xi 'an Gaohua Company held the "China Radio Clock Surface Market and Investment Promotion Press Conference", which officially launched the China code radio clock products designed by China in batches for the first time, ending the history that China's watch industry did not have its own national code radio clock.

working principle of radio clock

firstly, the standard time signal is encoded by the standard time service center, and the time signal is broadcast by long-wave radio with low-frequency (2KHz ~ 8KHz) carrier. The radio clock receives the low-frequency radio time code signal through the built-in miniature radio receiving system, and the time code signal is modulated by the special integrated chip, and then the control mechanism in the timing device automatically adjusts the timing of the radio clock.

through such a technical process, all radio clocks (or other timing devices) receiving the standard time signal are highly synchronized with the standard time of the standard time service center, and then all radio clocks display strictly consistent time.