Mercedes-Benz S-Class Owner's Manual page 529

if the two-way radio is not connected to
R
an exterior aerial
if the exterior aerial is not correctly
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mounted or is not of low reflection
This could jeopardise the operating safety of
the vehicle.
Have the low-reflection exterior aerial
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fitted at a qualified specialist workshop.
When operating two-way radios in the
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vehicle, always connect them to the
low-reflection exterior aerial.
* 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.
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Observe the maximum permissible out‐
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put power in these frequency bands.
Only use approved aerial positions.
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1 Front roof area
2 Rear roof area
3
Rear wings
4 Boot lid
On vehicles with a panoramic sliding sunroof,
installing an aerial to the front or rear roof area
is not permitted.
Technical data 527
On the rear wings, it is recommended that you
install the aerial on the side of the vehicle clos‐
est to the centre of the road.
Use Technical Specification ISO/TS 21609 (Road
Vehicles – "EMCs for installation of aftermarket
radio frequency transmitting equipment") when
retrofitting two-way radios. Comply with the
legal requirements for detachable parts.
If your vehicle has fittings for two-way radio
equipment, use the power supply and aerial con‐
nectors provided in the pre-installation. Observe
the manufacturer's supplements when fitting.
Two-way radio transmission output
The maximum transmission output (PEAK) at the
base of the aerial must not exceed the values in
the following table: