Mercedes-Benz C-Class Convertible 2021 Operator's Manual page 388

386 Technical data
1 Rear fenders
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 installations for two-way radio
equipment, use the power supply and antenna
connectors provided in the pre-installation.
Observe the manufacturer's supplements when
installing.
Two-way radio transmission output
The maximum transmission output (PEAK) at the
base of the antenna must not exceed the values
in the following table.
Frequency band and maximum transmission
output
Frequency band Maximum transmis‐
sion output
Short wave (30 W)
3 - 54 MHz
4 m frequency band (15 W)
74 - 88 MHz
2 m frequency band (25 W)
144 - 174 MHz
trunked radio sys‐ (10 W)
tem/Tetra
380 - 460 MHz
Frequency band Maximum transmis‐
sion output
70 cm frequency (15 W)
band
420 - 450 MHz
Two-way radio (10 W)
(2G/3G/4G)
The following devices can be used in the vehicle
without restrictions:
Two-way radios with a maximum transmis‐
R
sion output of up to 100 mW
Two-way radios with transmitter frequencies
R
in the 380 - 410 MHz frequency band and a
maximum transmission output of up to 2 W
(trunked radio system/Tetra)
Mobile phones (2G/3G/4G)
R
There are no restrictions when positioning the
antenna on the outside of the vehicle for the fol‐
lowing frequency bands:
Trunked radio system/Tetra
R
70 cm frequency band
R