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Radio signal reception range: China (BPC)
The reception range from the transmitting station is approximately 1,500 km (1,500 km radius of the
transmitting station).
Shangqiu
National Time
Service Center
(68.5 kHz)
1,500 km
BPC is operated by NTSC.
Shangqiu National Time Service Center
Frequency: 68.5 kHz
* NTSC: National Time Service Center
* The watch may be able to receive radio signals outside
a reception range if the receiving conditions are
favorable.
* Even within the reception range, weather conditions,
terrain, buildings, and orientation may mean that
reception is not possible.
“Environments in which it is difficult to receive a radio
signal” → P.24
EN 20
3
HOW TO SET THE TIME (RADIO SIGNAL RECEPTION)
Radio signal reception range: U.S.A. (WWVB)
The reception range from the transmitting station is approximately 1,500 km (1,500 km radius of the
transmitting station).
There are four time zones within the reception range.
Fort Collins
transmitting station
Frequency (60 KHz)
1,500 km
WWVB is operated by NIST.
Fort Collins transmitting station
Frequency: 60 kHz
* NIST: National Institute of Standards and Technology
* The watch may be able to receive radio signals outside
a reception range if the receiving conditions are
favorable.
* Even within the reception range, weather conditions,
terrain, buildings, and orientation may mean that
reception is not possible.
“Environments in which it is difficult to receive a radio
signal” → P.24
* Use of automatic reception is recommended, as this
time frame is optimal for automatic reception.
EN 21
3
HOW TO SET THE TIME (RADIO SIGNAL RECEPTION)
Radio signal reception range: Germany (DCF77), UK (MSF)
Each reception range from the transmitting station of DCF77 and MSF is approximately 1,000 km and 500 km
(1,000 km and 500 km radius of the each transmitting station). There are four time zones within the reception
range.
Mainflingen
transmitting station
(77.5 kHz)
Anthorn transmitting station
(60.0 kHz)
1,000 km
Approx. 500 km
DCF77 is operated by PTB.
Southeastern Frankfurt
Mainflingen transmitting station (77.5 kHz)
* PTB: Physikalisch-Technische Bundesanstalt
MSF is operated by NPL.
Northern England
Anthorn transmitting station
Frequency: 60.0 kHz
* NPL: National Physical Laboratory
* Even within the reception range, weather conditions,
terrain, buildings, and orientation may mean that
reception is not possible.
“Environments in which it is difficult to receive a radio
signal” → P.24
* Use of automatic reception is recommended, as this
time frame is optimal for automatic reception.
EN 22
3
HOW TO SET THE TIME (RADIO SIGNAL RECEPTION)
To improve radio signal reception
Place the watch in a place where it can easily receive a radio signal
such as near a window.
The antenna is embedded at the 9 o’clock position of the watch.
Turning the antenna toward the outside of a window or the
direction facing transmitting stations helps improve radio signal
reception.
* Locations of transmitting stations
“Radio signal reception range indication” → P.18
Do not move the watch while it is
receiving radio signals.
To enhance the reception of radio signals, do not move the
watch or do not change the orientation of the watch while it is
receiving radio signals.
* If the button or crown is operated while the watch is receiving a
radio signal, the reception will be cancelled.
The place where the watch is put before going to bed
Place the watch next to a window facing in the direction of a transmitting station before bedtime because
automatic reception is performed late at night.
The standard radio signal is influenced by the distance from the transmitting station, as well as by terrain
(including buildings) and weather conditions.
Also, please search for a place to easily receive radio signals when attempting reception.
Antenna
EN 23
3
HOW TO SET THE TIME (RADIO SIGNAL RECEPTION)
7


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