Installation the DCF clockInstallation the DCF clock
Figure 1: Align the DCF antenna
The external antenna receives the DCF77 signal and should be directed to Frankfurt, as shown in Figure 1.
The antenna should be placed at least 1 meter away from a monitor, computer or other disturbing electronic devices .
During installation, the receiving LED can be used as an orientation to the quality of reception. The LED should flash at intervals of one second.If the
antenna is properly aligned and the signal is strong enough, the display changes of "no signal" (No impeccable DCF77 signal) in "SEArCH" (search for
the 59th second). Was the 59th second found so will the display shows "rEAd60" (read the DCF time) henceforth. It still takes 60 seconds to display
the correct time.If the clock is not synchronized to the DCF time, the receiver LED flashes DCF work cycle (power reserve is in operation), if the LED is
enabled in the menu.Is the display not changed to "SEArCH", the antenna is probably disturbed by a device or the antenna is too close to the
display.Because the DCF antenna is so sensitive that it can disturb by the display in the near field, there is the possibility to reduce the brightness of
the display during the synchronization, or to deactivate the display. This problem have all other DCF clocks with multiplexed LEDs displays also.By a
darker display the DCF antenna can be mounted significantly closer to the display.
Synchronize with active display
This mode is active when in menu under "receive brightness" the brightness is set > 0.
Appearance of the text on the screen:
"no Sig" no signal.
"SEArCH" Search the fifty-ninth second.
"rEAdxx" read the dcf time.
Synchronize with deactivated display
This mode is active when in menu under "receive brightness" the brightness is set to 0.
When synchronizing with disabled display, only one decimal point for orientation appears.
"no Sig" no signal.
