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Will the mobile phone signal shield in the examination room affect the clock calibration?

Will the mobile phone signal shield in the examination room affect the clock calibration?

  • 2022/07/21

The examination room uses the examination room mobile phone signal shield, which is basically standard now. As you can see, it is also relatively common, which is not surprising. When you enter the examination room, you will also find a relatively common device, that is, the radio clock. The radio clock, as the name suggests, is a clock that displays time, but the radio clock is not a simple clock. The radio clock is a clock that ensures the accuracy of time by receiving the wireless signal from the national time service center. It is much more advanced than ordinary clocks.

The signal shielded by the shield is a wireless signal. Will the mobile phone signal shield in the examination room interfere with the radio clock? To understand whether the mobile Signal Jammer interferes with the radio clock, we must first understand the frequency used by the radio clock when receiving the radio signal from the national time service center. The signal emitted by the shield does not contain the GPS signal frequency, so it will not interfere with the GPS receiving time service signal of the radio clock. When another kind of radio clock obtains the time service signal through 4G signal, the shield will interfere with the time service signal obtained by the radio clock. But don't worry about the time error displayed by the radio clock. When receiving the time service signal, the electric wave clock is mainly used for the time calibration of the electric wave clock. The shielding device does not affect the normal use of the electric wave clock, and even if the electric wave clock does not receive the time service signal, it still displays the current time according to the normal time. Even if the electric wave clock is interfered by the shielding signal of the shielding device, it will not cause great error to the time display of the electric wave clock. Because the error between the time displayed by the radio clock and the standard time is very low, even if the radio clock cannot be calibrated by the timing signal for more than half a year, it can be basically ignored.

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