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4.3. DHF clock
Ensure that the transmitter is set in "Init" mode prior to the clock installation.
L
P
The clock is delivered in "Init" mode. To check this, ensure that, when the clock is
powered, the LED (L) is blinking once per second. Otherwise, shunt the two pins
(P) for more than 4 seconds.
DHF Movement
(battery operated)
When inserting the batteries matching up the [+] and [-] symbols or switching on power supply
(for TBT clocks), hands are set at 4h00 or 12h00 until the correct reception of the time signal is
achieved.
The clock will try to pick up the radio signal.
If the reception is good, the clock is synchronised automatically.
Without synchronization for 4 hours, battery operated clocks stop searching for
L
P
incoming signals. The LED blinks every 3 seconds. To force the clock to search
again, shunt the two pins (P) for more than 4 seconds or remove the batteries
and insert them again after 10 seconds.
DHF TBT Movement
If the reception is poor, increase the transmission power or install a DHF
(6-16V)
repeater.
Without power supply, the clock stops.
When the power and the DHF signal are back then the clock is set to the correct time. When the
power is back but not the DHF signal, the hands are driven to 4h or 12h.
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