Range - Eurochron EFTH 902 Mode D'emploi

16. RANGE

The transmission range of the radio signals between outdoor sensor and basis station
is up to 30 m under optimum conditions.
However, the range values refer to the so-called "free field range".
However, this ideal arrangement (e.g. basis station and outdoor sensors on a plain,
even meadow without trees, houses, etc.) never exists in practice.
Normally the basis station is set up in the house and the outdoor sensors, e.g. below
a car port or at the side of a window or in other rooms of the building.
Due to the different influences on radio transmission, no specific range can be
guaranteed, unfortunately.
Usually, however, operation in a family home is possible without any problems.
When the basis station doesn't receive any data from the outdoor sensor (in spite
of new batteries), observe chapter 14.
The range may be considerably reduced by:
—
walls/masonry, reinforced concrete ceilings
—
coated/metallised 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
basis 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 devices
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