OREGON SCIENTIFIC JM828WF User Manual

Wide-Screen Weather Forecast RF Clock

JM828WF-GB Cover R2 8/31/04, 3:37 PM1

with Thermometer

Model: JM828WF / JM828WFU

User Manual

WIDE-SCREEN WEATHER FORECAST RF CLOCK

WITH THERMOMETER

MODEL: JM828WF (Europe Version)

JM828WFU (UK Version)

USER MANUAL

INTRODUCTION

Congratulations for purchase of the JM828WF Weather Forecast
RF Clock.

The JM828WF is a multifunction Radio Frequency (RF) control­led clock. When brought within radio signals generated from
Frankfurt, Germany (DCF77) (Model JM828WF) or from Rugby,
UK (MSF60) (Model JM828WFU), the unit will automatically
synchronize with the current time and date.

The JM828WF can indicate weather forecasts and pressure change
trends.

Other features include a daily crescendo alarm with an eight­minute snooze function, and extra-large display.

MAIN FEATURES

A

SNOOZE BUTTON

Activates the snooze function

B

RADIO RECEPTION SIGNAL

Indicates the condition of radio reception

C

EXTRA - LARGE DISPLAY

Displays the time, date, alarm status, and temperature

D

ALARM ON ICON [ ]

Appears when the alarm is activated

E

ALARM ICON [ ]

Appears when the alarm time is displayed

F

BATTERY LOW (BATT) INDICATOR

Lights up when the batteries are running dry

G

UP [ ] AND DOWN [ ] BUTTONS

Increases or decreases the value of a setting

H

CLOCK BUTTON

Toggles the calendar clock display modes or activates the
calendar clock setting mode

I

ALARM BUTTON

Displays the alarm time or sets the alarm status

J

TREND INDICATOR

Indicates the trend of pressure changes

K

WEATHER FORECAST

Indicates the change of weather pattern

L

SENSOR

For indoor temperature reading

M

RESET BUTTON

Resets the unit by returning all settings to their default values

N

BATTERY COMPARTMENT

Accommodates four UM4 or AAA-size batteries

ALARM

O

Speaker alarm

TABLE STAND

P

For mounting the unit on a flat horizontal surface

WALL - MOUNT HOLE

Q

For mounting the unit on a wall

1

EN

JM828WF-GB R2 8/31/04, 3:38 PM1

EN

BATTERY INFORMATION

The unit requires four UM4 or AAA-size batteries for operation.

How to insert batteries:

1. Press the door tab and click open the door.

2. Insert the batteries strictly according to the polarities shown
therein.

3. Replace the door until it clicks in place.

Replace the batteries when the battery low indicator lights up.

To enable the feature again, hold down the buttons again. The
Antenna Icon [ ] signal will start blinking to initiate
reception automatically.

Note: Interference from sources such as TV sets can affect the
signal. If, after batteries have been inserted for ten minutes, the
DCF-77 signal is not received, then set the time manually (see
below, How To Set The Calendar Clock Manually).

TIME DISPLAY MODES

When the calendar is displayed, press CLOCK once to toggle
between hour, minute, second mode or the hour, minute, day-of­the-week mode.

When the alarm-time is displayed, pressing CLOCK once will
display the calendar instead. Then use the button again to toggle
the time modes.

hour, minute, and day-of-the-week mode

ABOUT RADIO RECEPTION

The JM828WF is designed to automatically synchronize its current
time and date when brought within range of the DCF77 or the
MSF60 (Model JM828WFU) RF signal.

When the unit is within range, its radio-control mechanism will
override all manual settings.

When the unit is receiving radio signal, the reception icon will
start to blink. The reception icon will show either strong, weak
or no signal depending on the strength of the radio signal. A
complete reception generally takes about two to 10 minutes.

Receiving
radio
signal

When the reception is completed the reception icon will stop
blinking. The reception icon will show [
[ ] for successful reception.

Reception
complete

For better reception of radio signals, place the clock away from
metal objects and electrical appliances to minimize interference.

To disable the auto-reception feature, hold down the [
[ ] buttons simultaneously for two seconds. The Antenna Icon

[

] will appear but it will not blink. The unit will NOT respond

to radio signals.

No signal Weak signal Strong signal

] for no reception or

No reception, or

manually adjusted

Successful reception

] and

hour, minute, and second mode

CALENDAR AND ALARM TIME DISPLAY

The calendar and the alarm-time share the same section of the
display.

The calendar is displayed in a day-month format.

When the calendar is displayed, press ALARM once to change
the display to the alarm-time. Press ALARM again to activate
the alarm. The ALARM ON icon is displayed when the alarm is
active.

To display the calendar, press CLOCK once.

calendar mode

alarm mode

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