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obstructions and that radio waves DO NOT curve around objects. Actual transmission
range will vary depending on what is in the path of the signal. Each obstruction (roof,
walls, floors, ceilings, thick trees, etc.) will effectively cut signal range in half.
Example: A Professional Weather Center with a 330 feet range is mounted on an
interior wall, so that the signal has to pass through one interior wall, one exterior wall,
and across the 10 feet width of the room between the 2 walls. The first wall will
reduce the range to 165 feet, and the second wall will reduce the range to 87 feet.
Factoring in the 10 foot room, this leaves a maximum of 77 feet of remaining signal
range.
This allowance is typically enough for a frame wall with non-metallic siding; however
certain materials can reduce range even further. Metal siding, stucco, and some
types of glass can reduce signal range by as much as ¾ or more, compared to the ½
reduction typical of most obstructions. It is possible to receive a signal through these
materials, however maximum range will be much less due to their tendency to absorb
or reflect a much larger portion of the sensor’s signal
.
Note :
•
After batteries are installed in the sensor, install the batteries in the Weather
Center to receive the signal from the sensor as soon as possible. If the
Weather Center is powered more than 5 hours after the sensor is powered, the
Weather Center will never receive signal successfully from this sensor. In this
case, user will need to reinstall the batteries from the sensor to redo set-up
procedure.