About Radio Reception - Oregon Scientific JMR818WF User Manual

Note: Though the sensor is splash proof, and is meant for
use outside, it should be placed away from direct sunlight,
rain, or snow.
Once the batteries have been inserted into the remote thermo-
sensor unit, batteries can now be inserted into the main unit.
The JMR818WF (main unit) requires four (4) UM4 or "AAA"
size batteries for operation.
How to insert batteries into the main unit:
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 so that it clicks into place.
Note: If not disposed of properly, batteries can be
harmful. Protect the environment by taking exhausted
batteries to authorized disposal stations.
Note: [ BATT ] Battery-low indicator
Replace the batteries when the battery-low indicator lights
up.

ABOUT RADIO RECEPTION

The JMR818WF is a radio frequency (RF) controlled clock.
When located within a 1500km radius of radio signal (DCF77) at
Frankfurt, Germany, the clock time will automatically synchronize
with DCF77 time-signal transmission. The benefit of a RF
controlled clock is that highly-accurate time is maintained and
manual adjustments to the time and date are not be required.
When the batteries are first installed, the JMR818WF will
automatically search for a radio signal.
JMR818WF-E R1 R OP
Black
When in search mode, the antenna icon [
process takes between two (2) and (10) minutes. After initial
search, short periodic reception-signal scans will commence
several times a day.
The antenna icon indicates the quality of reception.
Interference
Reception can be affected by a number of factors. For best reception,
place the device away from metal objects and electrical appliances.
Note: Interference from sources such as TV sets can affect
the signal. If, after batteries have been inserted for ten
minutes, the DCF77 signal is not received, then set the
time manually (see section: How To Set The Calendar
Clock Manually).
"SECONDS" AND DAY-OF-THE-WEEK
The "second" and the day-of-the-week share the same section of
the display.
The day-of-the-week is displayed as an abbreviation in four
languages.
3
3
] will blink. This
STRONG
WEAK
NO RECEPTION
RECEIVING
DISPLAY
day-of-the-week display
"second" display
8/27/04, 6:00 PM