Mercedes-Benz GLC 200 4MATIC Owner's Manual page 441

438 Technical data
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
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
Frequency band
Two-way radio
2G
Two-way radio
3G/4G/5G
The following devices can be used in the vehicle
without restrictions:
two-way radios with a maximum transmission
R
output of up to 100 mW
two-way radios with transmitter frequencies in
R
the 380 - 420 MHz frequency band and a
sion output
maximum transmission output of up to 2 W
50 W
(TETRA)
mobile phones (2G/3G/4G/5G)
R
10 W
There are no restrictions when positioning the
aerial on the outside of the vehicle for the follow-
ing frequency bands:
TETRA
R
2G/3G/4G/5G
R
Maximum transmis-
sion output
2 W
0.5 W