Datexx EXACTIME RC171W User Manual download pdf (Page 2)

WWVB RADIO CONTROLLED TIME

The NIST (National Institute of Standards and

Technology) radio station (WWVB) is located in Ft.

Collins, Colorado. It transmits an exact time signal

continuously throughout the most of the continental

United States at 60 KHz frequency. The Travel Alarm

Clock can receive this WWVB signal through the

internal antenna from up to 2,000 miles away. Due to

the nature of the Earth’s ionosphere, reception can be

limited during the daylight hours. The radio controlled

clock will search for an alternate station that receives

the atomic time signal from the NIST Atomic clock in

Boulder, Colorado.

The WWVB tower icon on the unit’s display will flash

indicating a radio signal reception from the WWVB

station. If the tower icon is not fully lit, or if the time

and date are not set automatically, please consider the

following:

* During night-time hours, atmospheric disturbances

 are typically less severe and radio signal reception

 may improve. A single daily reception is sufficient

 enough to keep the clock accuracy within 1 second.

* Make sure the unit is positioned at 8 feet (2 meters)

 distance from any interference source such as a TV,

 computer monitor, microwave, etc.

* Within concrete wall rooms such as basements or

 office buildings, the received signal may be weakened.

 Always place the Table Alarm Clock near the

 window for better reception.

B. ALARM 1 & ALARM 2 BUTTONS

* Select and set Alarm One and Alarm Two

* Recall current alarms status

C. MODE BUTTON

* Allows toggle between display modes (Alarm1,

 Alarm2 and Temperature)

* Activates manual programming mode

* Activates or deactivates the atomic time receiver

D. UP ( ) BUTTON

* Increases all function parameters

* Selects 12 or 24 hour time display format

* Activates US Time Zone selection mode

E. DOWN ( ) BUTTON

* Decreases all function parameters

* Sets the language for the day of the week

F. SNOOZE/LIGHT BUTTON

* Activates snooze function and LCD backlight

REAR VIEW

G. BATTERY COMPARTMENT

* Accommodates 2 (two) AAA 1.5V alkaline batteries.

7 8

MANUAL SETTINGS

TIME ZONE

* Select the Time Zone by pressing and

 holding the UP ( ) button for 3 seconds.

* Keep holding UP ( ) button until the

 desired time zone (Pacific, Mountain,

 Central or Eastern) is highlighted on

 the clock’s display map.

CLOCK

* Press and hold MODE button for 3

 seconds: the year digit will flash.

* Press UP ( ) or DOWN ( ) to

 change flashing digits.

* After the first value is set, press

 MODE button again to confirm and

 move to the next parameter.

* Continue setting month, date, hour,

 minutes and temperature display

 format.

* Press MODE button for the last

 time to return to the time of day

 with seconds, after the last

 parameter is set.

DATE

MONTH YEAR

ALARM 2

ALARM 1

DATE

MONTH YEAR

ALARM 2

ALARM 1

DATE

MONTH YEAR

ALARM 2

ALARM 1

DATE

MONTH YEAR

ALARM 2

ALARM 1

DATE

MONTH YEAR

ALARM 2

ALARM 1

DATE

MONTH YEAR

ALARM 2

ALARM 1

DATE

MONTH YEAR

ALARM 2

ALARM 1

DATE

MONTH YEAR

ALARM 2

ALARM 1

GETTING STARTED

BATTERY INSTALLATION

* Open the battery compartment door.

*Install 2 battery AAA size 1.5V matching the polarity

 as shown in the battery compartment.

* Replace the battery compartment door.

RADIO CONTROLLED CLOCK

After installing batteries, set the time manually.

ONE TIME SET is needed ONLY when first used.

The clock will update the time automatically afterwards.

Once the atomic time signal is received, the date and time

will be set automatically, and the [ ] icon will appear.

After the clock is set manually, place it by the window for

the better reception. The atomic clock receiver is

programmed that it will continue to search for the atomic

time signal daily for every hour between 1:00 am and

4:30 am. Once the time signal has been successfully

received, the time and date will be updated automatically.

CALENDAR AND CLOCK DISPLAY MODES

Precise time is displayed in hour-

minutes-seconds format on the top

ine of the Atomic Alarm Clock.

The date is displayed in month-date

format on the bottom line next to the

day of the week.

DATE

MONTH YEAR

ALARM 2

ALARM 1

1 2 3 4

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Datexx EXACTIME RC171W User Manual Page 2

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