Mercedes-Benz C-Class Saloon 2022 Owner's Manual page 442

* 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.
#
1 Rear roof area
On vehicles with a panoramic sliding sunroof, fit-
ting an aerial to the roof area is not permitted.
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.
Technical data 439
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
70‑cm‑ frequency
band
430 - 470 MHz
sion output
50 W
10 W
35 W