When dealing with customers"Radio wave/solar wristwatch"What is that? I am often asked this question.
Let's talk about each one.
What is a radio/solar watch?
I often hear from inquiries that some people think that solar rechargeable watches and radio-controlled watches are the same thing.
Today I will explain what each of them is.
First, let me explain briefly.
A watch that has an antenna inside the watch that receives radio waves and automatically adjusts the time."Radio clock"
The watch has a built-in solar panel, and the built-in rechargeable battery stores light energy.
The light energy is used as a power source to move the clock."Solar rechargeable watch"
A watch that is equipped with both a radio wave reception system that does not require time adjustment and solar charging that does not require semi-permanent battery replacement.
"Solar radio clock"collectively called.
Therefore, there are of course models that are equipped with only one or the other.
We often receive inquiries from people who say they have purchased a solar watch, but the time does not set automatically.
There seem to be quite a few customers who think that both basic functions are included, so we recommend checking the specifications.
(Actually, there are very few watches that only have radio reception, but there are quite a few that only have solar power.)
What is a radio-controlled watch?
Let me explain each function in a little more depth.
First of allradio-controlled wristwatchFrom
The good thing about radio-controlled watches is that they automatically adjust the time.
Some radio-controlled watches are compatible with overseas radio waves, and with these models, you can adjust the time to that country by changing the city setting when traveling overseas or on a business trip.
(For overseas reception,Reception supported countriesThis can only be done in the manual, so please check the instructions! )
Radio-controlled watches, like battery-powered watches, have an accuracy of around 15 seconds per month.
By automatically receiving and correcting radio waves every day, it is possible to always display a time that is close to the standard time.
Not only are there good points, but even though you can automatically receive radio waves, basicallyOnce a day during the night when there is less interferenceNishishika
In most cases, automatic reception will not occur during that time.Place with good reception environmentOtherwise, reception may fail.
In such cases, it is possible to force reception manually at any time, but there is a lot of interference during the day.
For successful reception, a suitable reception environment is required.
One more thing,If the charging capacity is not sufficient, reception will not work properly.Therefore, you need to pay attention to the amount of charge.
In addition, internal damage may occur due to the effects of magnetism and impact.Reference positionThe time may be off, even if the correct time is being received.
If the reference position is shifted, the time may be shifted.
In this case, please refer to the manual manually.System reset or reference position adjustmentYou need to do this.
However, if you have a certain amount of charge and leave it near a window or other place with good reception all night, it will automatically receive the signal and adjust the time.
There is no doubt that this is a very useful and useful feature.
By the way, in Japan, the base stations that transmit radio waves are2 locationsThere is.
A base station called a standard radio wave transmitting station isFukuoka prefectureandFukushima prefectureIt is located in
These two locations cover almost all of Japan (there are some places that cannot be reached, such as the Ogasawara Islands), and they continue to transmit radio waves almost 24 hours a day.
Transmission may be temporarily interrupted due to station repairs or unfavorable weather conditions (this is called a suspension).
Other than that, it continues to transmit 24 hours a day. Other than that, it continues to transmit 24 hours a day.
Regarding environments where reception is easy and difficult.
An environment where it is easy to receive
・Midnight to early morning
・A sunny place with a good view and no tall obstacles or buildings around.
・Near windows in buildings
On the contraryEnvironment where reception is difficultHa
・Reinforced buildings that easily block radio waves (reception is possible if you are near a window)
・Near home appliances and OA equipment
・When riding a vehicle
・Near high-voltage lines or overhead wires
・During the daytime when various interference waves are transmitted
As I have already explained, most messages are automatically received at night.
If you try forced reception manually during the day, please note the above and read the instructions.
If you try it, you can also receive it manually.
Summary
If you understand its characteristics and use it, it will always keep accurate time.
radio clockThis is the biggest feature of the app, so if you want to know the exact time at any time, please use it!
The second part issolar rechargeable watchI will explain about it!