Retrofitting two-way radios and
mobile phones (RF transmitters)
G
WARNING
If RF transmitters are tampered with or not
properly retrofitted, the electromagnetic
radiation they emit can interfere with the
vehicle electronics. This may jeopardise
the
operational
safety of the vehicle. There
is a risk of an accident.
You should have all work on electrical and
electronic components carried out at a
qualified specialist workshop.
G
WARNING
If you operate RF transmitters incorrectly
in
the
vehicle, the electromagnetic radia-
tion could interfere with the vehicle elec-
tronics, e.g.:
R
if the RF transmitter is not connected to
an exterior aerial
R
the exterior aerial has been fitted
incorrectly or is not a low-reflection
type
This could jeopardise the operating safety
of the vehicle. There is a risk of an acci-
dent.
Have the low-reflection exterior aerial
fitted at a qualified specialist workshop.
When operating RF transmitters in the
vehicle, always connect them to the low-
reflection exterior aerial.
!
Only have work carried out on the engine
electronics and its associated parts, such
as control units, sensors, actuating com-
ponents and connector leads, at a qualified
specialist workshop. Vehicle components
may otherwise wear more quickly and the
vehicle's operating permit may be invali-
dated.
!
The operating permit may be invalidated
if the instructions for installation and use
of RF transmitters are not observed.
In particular, the following conditions
must be complied with:
R
only approved wavebands may be used.
R
observe the maximum permissible output
in these wavebands.
R
only approved aerial positions may be
used.
Excessive levels of electromagnetic radia-
tion can cause damage to health. The use of an
exterior aerial takes into consideration the
scientific discussion surrounding the pos-
sible health risk posed by electromagnetic
fields.
The following aerial positions may be used if
RF transmitters have been properly instal-
led:
:
Front roof area
;
Rear roof area
i
On vehicles with a folding top, fitting an
aerial to the front roof area is not permit-
ted.
Use Technical Specification ISO/TS 21609
(Road Vehicles – EMC guidelines for instal-
lation of aftermarket radio frequency trans-
mitting equipment) when retrofitting RF
(radio frequency) transmitters. Comply with
the legal requirements for add-on parts.
If your vehicle has fittings for two-way radio
equipment, use the power supply and aerial
connections intended for use in the basic
wiring. Be sure to observe the manufacturer's
additional instructions during installation.
Deviations with respect to wavebands, maxi-
mum transmission outputs or aerial positions
must be approved by smart.
186
Retrofitting two-way radios and mobile phones (RF transmitters)
>> Technical data.
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