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6. Range
The free-field range for visual contact between transmitter and receiver is 400 ft.
(120 m) under optimal conditions. Walls and even steel concrete structures may be
penetrated; however, the range is then reduced accordingly. Reduced range can
be caused by the following:
· High frequency disturbances of all types
· All types of structures or vegetation
· The distance between the sensor and the receiver to the conducting areas or
objects (and even to the human body or the earth) has an effect on the transmis-
sion properties and in turn the range.
· Broadband disruptions in city areas can reach levels that reduce the signal-noise
distance in the entire frequency range and in turn reduce the range.
· Devices with adjoining working frequencies can also have an effect on the re-
ceiver.
· PCs with poor shielding can interfere with the receiver and reduce the range.
7. Instructions for Maintenance and Care
- Protect the base station against dust and moisture. Never clean it with chemical
detergents; just use a soft dry piece of linen. Do not put any pressure on the
display.
- The outdoor sensor is to be cleaned from time to time to remove the dirt and dust
that has settled on it. Check easy accessibility of the wind sensors and ensure
that the sensors are fitting tight on the holder.