TFA 98.1030 Instruction Manual Download Page 9

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Radio-controlled alarm clock
with thermometer

7.1 Manual setting of clock and calendar

• Hold the “MODE” button for 2 seconds when time is

displayed to enter setting mode. The hour indicator
is flashing

• Press the“+(12/24)”- button or the “-(C/F)”- button”

to adjust the setting and press the “MODE” button
to confirm each setting.

• The setting sequence is shown as follows:
• Hours, Minutes, Time Zone, Day-of-week language,

Year, Month, Day.

7.1.1 Time zone

• The time zone is used for the countries where the

DCF signal can be received but the time zone is dif-
ferent from the German time (e.g. + 1=one hour
later).

7.1.2 Selection of the language for the weekday

•

Day-of-week language: English (EN), German (GE),
French (FR), Spanish (ES), Italian (IT), Dutch (NE),
Danish (DA).

7.2 12 or 24 hours mode

•

Press the “+(12/24)”- button to select 12 or 24
hours mode.

7.3 Alarm setting

•

Press the “MODE” button twice. The Alarm Time
(“AL“) is shown on the LCD.

• When viewing the Alarm Time, hold the “MODE”

button for 2 seconds to enter Alarm Time setting.
The hour digits are flashing. Press the “+(12/24)”-
button or the “-(C/F)”- button to adjust the hours.
Confirm with the “MODE” button. Set minutes in the
same way.

• Press the “AL ON/OFF” button to switch alarm on or

off. If it is on, “

” is shown on the LCD.

• When alarming, press any button to stop the alarm.

• The time base for the radio-controlled time is a Cae-

sium Atomic Clock operated by the Physikalisch
Technische Bundesanstalt Braunschweig which has
a time deviation of less than one second in one mil-
lion years. The time is coded and transmitted from
Mainflingen near Frankfurt via frequency signal
DCF-77 (77.5 kHz) and has a transmitting range of
approximately 1,500 km. Your radio-controlled
alarm clock receives this signal and converts it to
show the precise time in summer or wintertime. In
Daylight Saving Time “DST” is shown on the LCD.

• The quality of the reception depends greatly on the

geographic location. In normal cases, there should
be no reception problems within a 1,500 km radius
around Frankfurt.

Please take note of the following:

• The recommended distance to any interfering

sources like computer monitors or TV sets is a min-
imum of 1.5 - 2 metres.

• Within ferro-concrete rooms (basements, super-

structures), the received signal is naturally weak-
ened. In extreme cases, please place the unit close
to a window and/or point its front or back towards
the Frankfurt transmitter.

• During night-time, the atmospheric disturbances

are usually less severe and reception is possible in
most cases. A single daily reception is adequate to
keep the accuracy deviation below 1 second.

7. Operation

•

Important:

Buttons will not function while scanning

for DCF unless they are well received or stopped
manually.

•

The instrument will quit automatically the setting
mode, if there is no button used within 8 seconds.

•

Press the “MODE” button to select the following dis-
play: hours, minutes and seconds

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