System Range Information - Conrad FHT8 Bedienungsanleitung

15. System range information

Transmission of data between heating control and valve op-
erating mechanism is performed wirelessly per radio trans-
mission.
The transmitting power is less than 10mW, i.e. much below
the transmitting power of a mobile phone which may have
a transmitting power that is 200 times as great. Therefore,
negative effects on sensitive people or animals are not to
be expected.
The radio heating thermostat system works in the 868MHz
range which is also used by other radio services. There-
fore restrictions in the operation and the range can occur
through the devices which work on the same or neighbour-
ing frequency.
The range stated of up to 100m is the free-field range, i.e.
the range at sight contact between the transmitter and the
receiver.
In practical operation, however, there are walls, the ceil-
ings of rooms etc. between the transmitter and the receiver
which reduce the range correspondingly.
Further causes of a reduced range:
• high frequency disturbances of all types
• buildings of all types and vegetation
• conductive metals which are located in the proximity of
the devices or within or close to the radio route, e.g. ra-
diators, metal insulation glass windows, reinforced con-
crete floors etc.
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