HumanTechnik lisa A-2422-0 Instrucciones De Servicio página 8

All transmitters and receivers
must be set to the same chan-
nel.
Installing the Radio-lisa
converter
Simply connect the Radio-lisa
converter to a power point. The
unit is immediately ready to
use.
Radio range
The transmitter for the Radio-
lisa converter are designed to
have a radio signal range of 80
meters under optimum condi-
tions.
The following conditions may
result in a reduced range:
- Signal transmission through
building structures or vegeta-
tion
- Interference from TVs, com-
puter monitors and mobile
phones. Under certain cir-
cumstances, this may pre-
vent the receiver from func-
tioning at all.
- Positioning of the transmitter
at an unfavourable distance
from surfaces which reflect
radio waves, for example
floors and walls. This may
lead to the signal wave being
weakened or even cancelled
out by the reflected wave.
8 English
- 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.
- Having units operating at
similar frequencies located
close to one another may
also result in mutual interfe-
rence.
Positioning the radio
transmitter
Bear in mind the following
points when positioning the ra-
dio transmitter, in order to achie-
ve the greatest possible range
from the radio transmitter:
- The radio transmitter should
not be set up close to devi-
ces which emit powerful
interference signals, such as
TVs, computer monitors or
mobile phones.
- The radio transmitter should
not be placed on metallic
objects, since otherwise the
radio range will be restricted
by metallic shielding.
- Position the radio transmitter
as close to the centre of the
building as possible, at a
medium height in the room.