National Geographic 274NE - Manual (Page 4)

274 NE
4 Radio Controlled Clock (RCC)
The RCC has the most accurate time within the
continent. This unit receives the time signal
transmitted by Physikalisch-Technische
Bundesanstalt (PTB) of Germany, which is
regulated by 4 atomic clocks and in average
deviates less than 1 second in 2 million years.
PTB transmits the time signal (DCF77, 77.5kHz)
continuously from Mainflingen, 25 km southeast
of Frankfurt (am Main). It is expected that the
signal can cover a distance of 2,000 km from the
transmitter. However, some environmental
effects may affect the transmitting distance.
For more information please see www.ptb.de
With all wireless devices, the receiving ability
may be affected by, but not limited to, the
following, therefore for best accuracy avoid the
following situations:
4.1 Wave Signal Reception
As long as the batteries are supplying power to the clock, the clock will receive the time signal and
adjust the time automatically. No manual adjustment is required after power up. Accurate adjustment
of the clock based on the time signal is supported in the continental Europe.
The monitor automatically receives the time signal everyday at 1:00am and makes any required
adjustment to the time setting, indicated by the flashing icon
.
If the time signal is successfully received the icon will appear and the RCC icon will stop
flashing.
Important: Do not press any button while the wave signal reception is in progress.
4.2 Triggering a Wave Signal Reception Manually
You can trigger a wave signal reception at any time by pressing the WAVE - button .
4.3 Unsuccessful Wave Signal Reception
If the automatic updates are unsuccessful, the wave on top of the antenna tower and will
disappear. The unit will try to receive the signal for 10 minutes every hour until successful reception.
5 Operation
5.1 Setting the language
The day can be displayed in 4 different languages (English/French/German/Italian).
In stand-by:
•
Press the SET- button for 3 seconds.
• A double beep confirms that you entered the setting mode.
• Press the + or - button to change the display language.
• Press the SET- button to confirm. The year is flashing on the display.
• Long transmitting distance
• Nearby mountains and valleys
• Among tall buildings
• Near railway, high voltage cable, etc.
• Near freeway, airport, etc.
• Near construction site
• Inside concrete buildings
• Near electrical appliances
• Bad weather
• Inside moving vehicles
• Nearby metallic structures
FR
ES
TN
PT
IE UK
IS
BE
LU
NL
DE
IT
MT
CH
AT
CZ
PL
SE
NO
DK
FI
EE
LT
HR
BA YU
AL
MK
EL
TR
GE
CY
SY
JO
LB
IL
BG
RO
UA
MD
BY
LV
SK
HU
SI
1500 Km
OK
OK
OK