Mercedes-Benz E-Class 2009 Owner's Manual page 288

Retrofitting of two-way radios and
mobile phones (RF transmitter)
Use the Technical Specification
44
ISO/TS 21609 implementation regulation
when retrofitting RF (radio frequency) trans-
mitters.
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.
! Damage resulting from installation work
that has not been carried out correctly is
not covered by the Mercedes-Benz implied
warranty.
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
GSM 1800
UMTS
ISO/TS 21609 – Technical Specification for Road Vehicles -- (EMC) guidelines for installation of aftermarket
44
radio frequency transmitting equipment.
* optional
Maximum trans-
mission output
(PEAK)
100 W
30 W
50 W
35 W
10 W
10 W
10 W
Vehicle electronics
Aerial positions
The following aerial positions may be used if
RF transmitters have been properly installed:
Aerial positions, Coupé
Front roof area (vehicles with panorama
:
sliding sunroof*: this area is not author-
ised 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
?
Aerial positions, Cabriolet
Rear mudguard (recommended installa-
:
tion position: on the side which faces the
centre of the road)
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