What is radio controlled clock? How many countries have radio tower?
There are 6 radio stations in the world, 2 in Japan, 1 in North America, 2 in Europe and 1 in China.
China code radio clock is the Beijing standard time radio signal BPC(frequency 68.5kHz) transmitted by the radio tower of China National Time Service Center (Shangqiu, Henan Province), through the clock built-in microprocessor conversion, control the clock moving, so that the clock display time and Beijing standard time keep accurate and consistent.Radio clock is very popular in Japan, Europe and the United States, but China only built the radio tower in 2007.Radio clock is the most accurate, simple timing tools, to bring you a new high-tech timing technology experience, enjoy simple timing life.
1. Can China code radio clock receive radio signals all over the country?
China code radio clock products receive is the national timing center of Henan Shangqiu low frequency code broadcasting station signal.With Shangqiu as the center, the radius of 2000 kilometers within the range can better receive the radio clock signal.Here we need to emphasize a concept, the transmission area of the infinite signal is not a fixed limit area, the range of 2000 kilometers is only in this area with the current level of radio clock technology to say that the reception effect is better.There's also coverage 2,000 kilometers away, but it's weaker.If the environmental noise and shielding is small, the radio clock has a higher sensitivity, and can also receive the signal successfully.
2. What is the transmission time of the tower signal?
At present, the low-frequency time-code broadcasting station located in Shangqiu, Henan Province broadcasts the signal from 9∶00 to 17∶00 in the daytime and 21∶00 to 5∶00 at night.Signal transmission and broadcasting may be temporarily interrupted due to maintenance of broadcasting station or meteorological conditions such as lightning, rainstorm and strong wind.In the future, it will be broadcast 24 hours around the clock.
3. What factors affect the signal reception of the radio clock?
The radio signal is affected by environmental and meteorological conditions. The following conditions may affect the signal reception of the radio clock.
A. In the case of A barrier;
B. When the weather environment of the launching pad and the receiving area is bad (thunder and lightning, heavy rain, strong wind, etc.);
C. When the working voltage of the clock is low;
D. On a high-speed plane or train;
E. It is not easy to receive signals on trams, at airports or in areas with dense reinforced concrete buildings;
F. In the process of forced signal receiving, if the clock is constantly moved, the receiving signal will fail;
G. In the vicinity of mobile phones, computers, power lines, under the fluorescent lamp, may be interfered by external signals;
H. Near the time of sunrise and sunset, the radio signal may be confused, please avoid this time to receive the signal;
4. Will the radio clock stop without receiving a signal?
Don't stop.Because the function of the radio signal is only to correct the time of the clock, and does not affect the drive of the clock.The electric clock is driven by the power of its own battery.
5. The pointer position is deviated after reset. What should I do?
Check the reference position of the clock first. If it is found that the position of the pointer is not correct, please adjust the reference.The datum level adjustment method is different for all kinds of clocks. Please adjust according to the product manual.If the second hand position is wrong for many times, please send the clock back to the factory for inspection.
6. the use of radio watch whether there is radiation to the human body?
A watch just receives a standard time signal and does not send out waves, similar to a radio, so it does not have any effect on the human body.
7. Why do radio signals vary in strength at the same place
The strength of standard radio signal will be affected by the change of weather around the transmitting station and the receiving area. If there is bad weather (thunder, thunderstorm, strong wind, etc.) in the area, the radio signal at the same location will change in strength, but at this time the clock can still receive the signal correctly, please do not worry.
8. If I buy a Chinese radio clock, can I receive the signal from a foreign transmitter?
Each tower transmits signals at different frequencies. At present, Chinese radio clocks and clocks can only receive signals from Chinese towers.
9. How can you tell if your battery is low?
Because of the difference in electricity consumption between the radio clock and the ordinary quartz clock, when the second hand in the "uphill" (from 9 to 12) and "downhill" (from 12 to 3) process has obvious speed change;The pointer stops moving under normal conditions;Shortening of the time between two receiving signals may indicate that the battery is low, so please replace a new high-energy battery.A high performance alkaline battery (such as Nanfu, Energizer, etc.) can make the radio clock run for more than one year in normal use.
