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6.3 Manual time synchronisation (transmitter calls)
Your Junghans Mega MF radio-controlled watch can also be syn-
chronised manually, by performing what is called a ’Manual trans-
mitter call’.
You do this by pressing the T1 button for over 3 seconds. The
second hand starts to move and positions itself at 12 o’clock. In
parallel with this, the hour and minute hands continue to show
the current time. The reception phase then starts. The reception
display flashes on the LCD for the transmitter with which synchro-
nisation last took place and, instead of the date, the second’s [00]
are now digitally displayed. Please put the watch down while the
signal is being received as moving the watch around while it is try-
ing to update can cause reception failure
If synchronisation with the transmitter is not possible, all of the
other transmitters are then checked for possible reception of any
of their signals. As soon as a signal has been picked up, the digital
seconds on the LCD display start to advance. When the watch has
picked up the signal, the hands automatically set themselves at
the transmitter’s local time and the second hand advances to the
current second. On the LCD the date is shown and the transmitter
that was successfully received is represented by the corresponding
reception display.
Should you be in a time zone different from that of the transmitter
the watch picked up, then after one-off synchronisation you will
need to set the applicable local time for that location using the
time zone adjustment function.
The time zones displayed when picking up the signal from the
respective transmitters are as follows:
Transmitter Time zone displayed
DCF77 (Europe) CET or CEST
WWVB (North America) Pacific time
JJY40 Japanese local time
JJY60 Japanese local time
If you wish, you can interrupt the manual synchronisation process,
as soon as the second hand is in the 12 o’clock position.
To do so, briefly press the T1 button. The second hand then returns
to the original time.
Please note that manual synchronisation is not possible if battery
power is too low and the [Lo] symbol is showing on the display.
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