Datasheet

Specifications
• Receive 77.5kHz DCF77 signal transmitted by PTB.
• Automatic time adjustment after signal reception.
• Calendar with day-of-the-week display.
• Hour, Minute and Second display.
• 12 or 24 hour format.
• Quartz crystal oscillator frequency : 32.768kHz.
• Time accuracy (atomic clock): better than 1 second in 3000 years.
• Time accuracy (free run): average within 60 seconds per month.
• Operating temperature from 0°C to 50°C (32°F to 122°F).
• Temperature measuring range from -9.9°C to 50°C (14.2°F to 122°F).
• Temperature resolution 0.1°C (0.1°F).
Location Precautions
This clock receives a radio wave much like a TV or radio. Be sure to locate it near a window or
some other locations where reception is good. Avoid the following locations, which can interfere
with proper reception.
Inside or near concrete/ steel buildings or structures, unless the clock is close / next to a window
(with curtain open).
Next or close to power station.
Inside moving vehicles (automobile, train, airplanes etc) which radio transmission or electronics
will interfere the reception of radio-controlled clock.