12 Transmission range
The weather station can receive radio signals from the outdoor sensor within a
range of up to 80 metres under optimum conditions.
What is meant by this transmission range is the so-called "free-field
range".
However, the ideal arrangement (e.g. weather station and outdoor sensor
located on a smooth, plain meadow without trees, houses, etc.) never
occurs in practice.
The weather station is normally installed indoors and the outdoor sensor
beside a window.
The actual range cannot be guaranteed due to various factors affecting
radio transmission.
The range should be sufficient for use in a detached house.
If the weather station does not receive any data from the outdoor sensor
(despite new batteries being inserted), reduce the distance between the
weather station and the outdoor sensor.
The range can be reduced considerably due to:
Walls and reinforced concrete ceilings
Coated/vapour-deposited insulating glass panes, aluminium windows, etc.
Vehicles
Trees, bushes, soil and rocks
Proximity to metal and conductive objects (e.g. radiators)
Proximity to human bodies
Broadband interference, e.g. in residential areas (DECT telephones, mobile
phones, wireless headphones, wireless speakers, other wireless weather sta-
tions operating on the same frequency, babyphones, etc.)
Proximity to electric motors, transformers, power adapters
Proximity to mains sockets and network cables
Proximity to poorly shielded or uncovered computers or other electrical appli-
ances
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