HumanTechnik Radiorécepteur portable radio-lisa Mode D'emploi page 23

Battery depleted
The blue battery indicator is lit. Please replace
the batteries as soon as possible.
Transmission range
Note the following points when using the porta-
ble RF receiver:
The radio signals are designed to have a range
of 80 meters under optimum conditions.
The following conditions may result in a re-
duced range:
- Obstacles like building structures or vegetation.
- Interference from TVs, computer monitors and
mobile phones. Under certain circumstances,
these may prevent the receiver from function-
ing at all.
- Positioning of the transmitter at an unfa-
vourable distance from surfaces which re-
flect radio waves, for example floors and walls.
This may lead to a weakened or even can-
celled-out signal by the reflected wave.
- Metallic objects reduce the range due to the
shielding effect of the metal.
- Particularly in towns and cities, there may be
many other sources of radio waves which can
disrupt the original signal.
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