La Crosse Technology WIRELESS WEATHER STATION Instruction Manual page 24

*When the signal from the transmitter is successfully received by the Temperature
Station, this icon will be switched on. (If not successful, the icon will not be shown
on the LCD). User can therefore easily see whether the last reception was
successful ("ON" icon) or not ("OFF" icon). On the other hand, the short blinking of
the icon shows that a reception is being done at that time.
For better distinctness the LCD screen is split into 3 sections displaying the
information for time and indoor data, weather forecast, and outdoor data.
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