Transmission Range - Eurochron EFWS 301 Mode D'emploi

14. TRANSMISSION RANGE

The transmission range of the radio signals between outdoor sensor and weather
station is up to 80 m 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 set up in the house and the outdoor sensor, e.g.
below a car port or at the side of a window.
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.
When the weather station doesn't receive any data from the outdoor sensor (in
spite of new batteries), observe chapter 13.
The range can sometimes be considerably reduced by:
—
walls/masonry, reinforced concrete ceilings
—
coated/metalised insulated glass, aluminium windows, etc
—
vehicles
—
trees, shrubbery, earth, rocks
—
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, mains adapters
—
proximity to mains sockets, mains cables
—
proximity to improperly shielded or uncovered operating computers or other
electric appliances
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