Antenna system (ATS), function - GF82.62-P-0001GH
MODEL 163
Preliminary remark
This description concerns mainly the audio, CTEL and navigation antenna system for vehicles fitted with COMAND or radio and navigation unit (MCS).
General
The different antennas are matched in terms of design to their specific reception and transmitting ranges.
A distinction must be made between passive and active antennas:
Passive antennas do not require a voltage supply, they can therefore not directly amplify the radio signal received.
Active antennas are supplied with voltage. They feature an integrated amplifier.
The voltage can be supplied over separate cables or over the coaxial cables over which the actual signals are transmitted simultaneously ( phantom feed ) . In this case, no separate leads are required for the power supply .
A further distinction in terms of the antennas is that certain antennas are used only for reception while others are used both for reception as well as for transmission .
Function up to 31.08.01
The CTEL and GPS roof antenna (A2/49 ) is supplied with direct voltage via the antenna cable ( phantom feed ).
It is connected by a coaxial cable to the CTEL and GPS antenna splitter (A2/57) . These two components ensure reception and transmission of the GSM signals and reception of the GSP signals .
Function as of 01.09.01
The CTEL and GPS roof antenna (A2/49) has the antenna splitter and an antenna amplifier integrated, which eliminates the need for the CTEL and GPS antenna splitter (A2/57) .
The detailed descriptions of the individual systems and components are given in the reference documents listed below.
| Cockpit management and data system (COMAND) function | GF82.85-P-0003GH | ||
| Modular control system (MCS), function | GF82.85-P-0011GI | ||
| Rear window antenna, location/purpose/design/ function | GF82.62-P-3106GH | ||
| FM/AM antenna amplifier, location/purpose/ design/function | GF82.62-P-4101A | ||
| GPS/CTEL roof antenna, location/purpose/ design/function | GF82.70-P-4111A | ||
| Antenna, location/purpose/design/function | Valid up to 31.08.01 | GF82.85-P-3107GH |