Mercedes-Benz S-Class 2022 Owner's Manual page 488

* NOTE Invalidation of the operating permit
due to failure to comply with the instruc-
tions 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 aerial positions.
#
Vehicles without panoramic sliding sunroof
1
Rear roof area
On vehicles with a panoramic sliding sunroof, fit-
ting an aerial is not permitted.
Use Technical Specification ISO/TS 21609 (Road
Vehicles – "EMCs for installation of aftermarket
radio frequency transmitting equipment") when
Technical data 485
retrofitting two-way radios. Comply with the legal
requirements for detachable parts.
If your vehicle has fittings for two-way radio equip-
ment, use the power supply and aerial connectors
provided in the pre-installation. Observe the man-
ufacturer'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:
Frequency band and maximum transmission out-
put
Frequency band Maximum transmis-
2–m– frequency band
144 - 174 MHz
Terrestrial Trunked
Radio (TETRA)
380 - 460 MHz
sion output
50 W
10 W