Mercedes-Benz GLC : Vehicle electronics / Frequency band and maximum transmission output

The following can be used in the vehicle without
restrictions:
- Two-way radios with a maximum transmission
output of up to 100 mW
- RF transmitters with transmitter frequencies
in the 380 - 410 MHz frequency band and a
maximum transmission output of up to 2 W
(TETRA)
- Mobile phones (2G/3G/4G)
There are no restrictions when positioning the
antenna on the outside of the vehicle for the following
frequency bands:
- Terrestrial Trunked Radio (TETRA)
- 70 cm frequency band
- 2G/3G/4G
Notes on installing two-way radios
WARNING Risk of accident due to
improper work on two-way radios
If two-way radios are manipulated or retrofitted
incorrectly, the electromagnetic radiation
from the two-way radios can interfere with
the vehicle electronics and jeopardize the
operating safety of the vehicle...
Manufacturer information about wireless vehicle
components can be found using the key phrase
"Radio operating permits" in the Digital Operator's
Manual in the vehicle, on the Internet and
in the app...
Other information:
Requirements:
The engine has been warmed up.
The vehicle is parked on a level surface.
The engine is running at idle speed.
The hood is closed.
The engine oil level is determined during driving.
Determining the engine oil level can take up to
30 minutes with a normal driving style and even
longer with an active driving style...
..