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bjanott,
warranty and operating permit may be inva-
lidated.
Retrofitting of two-way radios and
mobile phones (RF transmitter)
When retrofitting RF transmitters, the
ISO/TS 21609 technical specifications
to be used.
If your vehicle has fittings for two-way radio
equipment (e.g. taxis, hire cars or official vehi-
cles), use the power supply or aerial connec-
tions intended for use with the basic wiring.
Be sure to observe the manufacturer's addi-
tional instructions when installing the fittings.
! The Mercedes-Benz warranty does not
cover consequential damage resulting from
improper installation.
To ensure proper installation, Mercedes-
Benz recommends having this work done
at a Mercedes-Benz Service Centre or at a
qualified specialist workshop.
Transmission output
Transmission output at the aerial base must
not exceed the maximum values below.
Waveband
Short wave
(f < 54 MHz)
4 m waveband
2 m waveband
Trunked radio/Tetra 35 W
70 cm waveband
GSM 900/AMPS
49
ISO/TS 21609 – Technical Specification for Road Vehicles -- (EMC) guidelines for installation of aftermarket
radio frequency transmitting equipment.
* optional
49
are
Maximum trans-
mission output
(PEAK)
100 W
30 W
50 W
35 W
10 W
Version: 2.11.7.7
Vehicle electronics
Waveband
GSM 1800
UMTS
Aerial positions
The following aerial positions may be used if
RF transmitters have been properly installed:
Front roof area (vehicles with sliding/tilt-
:
ing sunroof*: observe the roof's sweep)
(vehicles with panorama sliding roof*: this
area is not authorised for use)
Rear roof area (vehicles with panorama
;
sliding sunroof*: this area is not author-
ised for use)
Rear mudguard (recommended installa-
=
tion position: on the side which faces the
centre of the road)
Boot lid
?
G
Risk of accident
Incorrect retrofitting of RF transmitters can
cause the vehicle electronics to malfunction,
impair the vehicle's operating safety and,
thus, also impair your own safety.
To ensure proper installation, Mercedes-Benz
recommends having this work done at a
Mercedes-Benz Service Centre or at a quali-
fied specialist workshop.
Maximum trans-
mission output
(PEAK)
10 W
10 W
Z
423
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