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4. Range and reception interference
The free field range (i.e. the range of the line of sight
contact between the transmitter and the receiver) is
100 m under optimum conditions. Walls and even
reinforced concrete can be penetrated, which does,
however, reduce the range.
In the event of interference, turn the display unit
slightly until it is again receiving data from the
required sensor.
A reduced range can have the following causes:
●
High frequency interference of all kinds
●
Buildings of all types or vegetation
●
The distance of the transmitter or receiver from
conductive surfaces or objects (even to the human
body or the ground) has an effect on the radiation
characteristics and therefore the range.
●
Wide band interference in built up areas can reach
levels that reduce the signal-noise ratio throughout
the frequency band which reduces the range.
●
Devices working on adjacent frequencies can also
affect the receiver.
●
Badly shielded PCs can radiate into the receiver and
reduce the range.
