Transmission Range - Conrad 75 17 47 Bedienungsanleitung

15. Transmission range

The transmission range of the radio signals between transmitter and receiver is up to 200m under opti-
mum conditions.
However, the range values refer to the so-called "free field range". (Range in case of
direct sight contact between transmitter and receiver without any interferences).
In practical operation, however, there are walls, ceilings etc. between the transmitter
and the receiver which reduce the range correspondingly.
Due to the different influences on radio transmission, it is not possible to guarantee
a specific range.
Nevertheless, usually operation in a single-family home is possible without prob-
lems.
The range can sometimes be considerably reduced by:
• walls, reinforced concrete ceilings
• coated/metallised insulated glass
• 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, radio-controlled weather stations, baby phones etc.)
• Proximity to electric motors, transformers, power-supply units, computers
• the proximity to improperly shielded or uncovered operating computers or other electric appliances
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