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14. Transmission range
The transmission range of the radio signals between the outdoor sensor for temperature/air humidity and the weather
station is up to 30m under optimum conditions.
However, the range values refer to the so-called "free field range".
However, this ideal arrangement (e.g. weather station and outdoor sensor on a plain, even meadow
without trees, houses etc.) never exists in practice.
Normally, the weather station is installed inside the house and the outdoor sensor next to a window
(further outdoor sensors e.g. in the basement or the garage).
Due to the different influences on radio transmission, it is not possible to guarantee a specific range.
However, trouble-free operation is usually possible in a detached house.
If the weather station does not receive any data from the outdoor sensors (despite new batteries),
reduce the distance between the outdoor sensors and the weather station, change the installation site.
The range can sometimes be considerably reduced by:
• walls, reinforced concrete ceilings
• coated/metallised insulated glass
• vehicles
• trees, brushes, earth, rocks
• the proximity to metallic & conductive objects (e.g. heating elements)
• proximity to human body
• Broadband interferences, e.g. in residential areas (DECT telephones, mobiles, radio-controlled headphones,
radio-controlled speakers, other radio-controlled weather stations, baby phones etc.)
• Proximity to electric motors, transformers, power-supply units, computers
• proximity to badly shielded or openly operated computers or other electric devices
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