About The Time Signal; General Information; Tips For Good Reception; Getting Started - ADE CK 1604 Instrucciones De Operación

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About the Time Signal

About the Time Signal

General Information

This radio wall clock obtains its radio signal from the DCF77 time signal transmitter.
This broadcasts the precise and official time of the Federal Republic of Germany on the
long-wave frequency of 77.5 kHz.
The transmitter is located in Mainflingen near Frankfurt am Main and, with its range of
up to 2000 km, supplies the majority of radio-controlled clocks in western Europe with
the necessary radio signals.
As soon as the clock is supplied with current from the battery, it switches to receiving
mode and searches for the signal from the DCF77 transmitter. If the time signal has
been received with sufficient strength, the hands set themselves to the correct time.
The clock switches on multiple times daily and synchronises the clock time with the
radio signal from the DCF77 transmitter. In the event the signal is not received, e.g.
during a strong storm, the device continues to run precisely and then switches to
receiving mode again at the next scheduled time.

Tips for good reception

‚ Hang or place the radio wall clock as near as possible to a window.
‚ Maintain distance from TV sets, computers, and monitors. Base stations from
cordless telephones should also not be located in immediate proximity to the
clock.
‚ The reception is generally better at night. If, during the day, the clock had no
reception, it may well be that the signal will be received immediately and at full
strength in the evening hours.
‚ The weather, e.g. a heavy storm, can cause interference with the reception.
‚ Temporary shutoffs of the transmitter can sometimes happen, e.g. because of
maintenance work.

Getting started

You need an LR6 (AA), 1.5 V battery to use the product.
1. Remove the safety pin over the battery compartment. Otherwise the clock hands
will be unable to move.
2. Place the battery on the bottom of the battery compartment as shown.
Pay attention to the correct polarity (+/-).
As soon as the battery is inserted the clock switches to receiving mode – see next
chapter.
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Radio Wall Clock CK 1604

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