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Notes on the technical data
The given data only applies to vehicles with
standard equipment. You can obtain further infor‐
mation at a qualified specialist workshop.
On-board electronics
Notes on work on the engine electronics
* NOTES Premature wear through
improper maintenance
Improper maintenance may cause vehicle
components to wear more quickly and the
vehicle's operating permit may be invalidated.
Always have work on the engine elec‐
#
tronics and related components carried
out at a qualified specialist workshop.
Two-way radios
Installation notes for two-way radios
& WARNING Risk of accident due to
improper work on two-way radios
If two-way radios are manipulated or retrofit‐
ted incorrectly, the electromagnetic radiation
from the two-way radios can interfere with
the vehicle electronics and jeopardize the
operating safety of the vehicle.
You should have all work on electrical
#
and electronic components carried out
at a qualified specialist workshop.
& WARNING Risk of accident due to
improper operation of two-way radios
If you use two-way radios in the vehicle
improperly, their electromagnetic radiation
can disrupt the vehicle's electronics. This is
the case in the following situations, in partic‐
ular:
The two-way radio is not connected to an
R
exterior antenna.
The exterior antenna is installed incor‐
R
rectly or is not a low-reflection antenna.
This could jeopardize the operating safety of
the vehicle.
Have the low-reflection exterior antenna
#
installed at a qualified specialist work‐
shop.
When operating two-way radios in the
#
vehicle, always connect them to the
low-reflection exterior antenna.
* NOTE Invalidation of the operating per‐
mit due to failure to comply with the
instructions for installation and use
The operating permit may be invalidated if the
instructions for installation and use of two-
way radios are not observed.
Only use approved frequency bands.
#
Observe the maximum permissible out‐
#
put power in these frequency bands.
Only use approved antenna positions.
#
Use Technical Specification ISO/TS 21609 (Road
Vehicles - EMC guidelines for installation of after‐
market radio frequency transmitting equipment)
when retrofitting two-way radios. Comply with the
legal requirements for detachable parts.
If your vehicle has installations for two-way radio
equipment, use the power supply or antenna con‐
nections intended for use with the installation.
Observe the manufacturer's supplements during
installation.
Two-way radio transmission output
The maximum transmission outputs (PEAK) at the
base of the antenna must not exceed the values
in the following table:
Frequency band and maximum transmission
output
Frequency band
Maximum transmis‐
Short wave
3 – 54 MHz
4 m waveband
74 – 88 MHz
2 m waveband
144 – 174 MHz
Trunked radio sys‐
tem/Tetra
380 – 460 MHz
Technical data 225
sion output
100 W
30 W
50 W
10 W
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