A radio clock is a so-called quartz clock, which can receive a time signal transmitted by radio. As a rule, this signal is transmitted by a time signal transmitter.

1. The history of the radio clock

The patent for the radio clock was registered in 1967 by Wolfgang Hilberg. Wolfgang Hilbert was a successful professor of electrical engineering at the Technical University in Darmstadt. He was of the opinion that the time is a very important information that every person in Germany needs. In this way he got the idea of ​​the radio clock, which he regularly tried to realize after work. When he finally succeeded, there were no buyers for his idea for years. Many people considered the radio clock to be a mere bauble that would not be worth investing in. Twenty years later, shortly after the patent expired, the breakthrough came. The first radio clock was launched by Junghans and quickly became very popular. Today there are radio Controlled in all sorts of variations and models and are indispensable.

2. Functioning of a radio clock

There is much more technology in a radio clock than most people would expect. Despite everything, the technology is designed so that the operation of the watch is considered very demanding but the use is really simple and straightforward.
Basically, three things are needed for operation: an extremely accurate timer (for example, an atomic clock), a long-wave transmitter and a receiver (in this case the radio clock).

2.1 Function of the atomic clock

The atomic clock is considered a very accurate and accurate timepiece, which has only incredible deviation of 1 second in 20 million years. On the whole earthyou can not find a comparable clock. Atomic clocks measure time on the basis of characteristic frequencies of radiation transitions of the electrons of free atoms.
The collaboration of hundreds of atomic clocks provides the so-called international atomic time and ensures the precision of many unlikely radio Controlled worldwide.

2.2 Function of the longwave transmitter

A long-wave transmitter emits electromagnetic waves in the frequency range from 30kHz to 300kHZ. Thus, one codes the time signal electronically, causing it to be transmitted in the form of a second signal.

2.3 Functioning of the receiver

Depending on the model of the radio clock, the time signal is received either hourly or daily. When receiving the signal, the radio clock synchronizes itself automatically. After that, it runs automatically until the next signal.

3. Advantages of radio Controlled

wireless controlled clocks convince with their incredibly precise time specifications. So if you own a radio clock, you can always be sure you know the right time. Accordingly, constant readjustment of the clock as well as delays due to the wrong time disappear. In addition, it is no longer necessary to pay attention to the changes between summer time and winter time, since radio Controlled automatically synchronize correctly.
Another advantage is that radio Controlled are completely noiseless. Accordingly, there is no nerve killing ticking, which constantly reminds the owner of the advancing time.