Retrofitting two-way radios and
mobile phones (RF transmitters)
Use the Technical Specification
ISO/TS 21609 46
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 correct 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 Maximum trans-
mission output
(PEAK)
Short wave
(f < 54 MHz) 100 W
4 m waveband 30 W
2 m waveband 50 W
Trunked radio/Tetra 35 W
70 cm waveband 35 W
GSM 900/AMPS 10 W
GSM 1800 10 W
UMTS 10 W Aerial positions
The following aerial positions may be used if
RF transmitters have been properly installed:
Aerial positions, Saloon
:
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
46 ISO/TS 21609 – Technical Specification for Road Vehicles -- (EMC) guidelines for installation of aftermarket
radio frequency transmitting equipment. Vehicle electronics
331Technical data
* optional
212_AKB; 2; 4, en-GB
mkalafa
,V ersion: 2.11.8.1
2009-05-05T14:17:16+02:00 - Seite 331 Z
Dateiname: 6515346702_buchblock.pdf; erzeugt am 07. May 2009 14:17:31; WK
