Kathrein DDA Series User manual

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Car roof top Antenna with integrated Bluetooth
transceiver
(DDA)
DDA01 / DDAECE01
AUDI Part Numbers: 4N0 035 503 N, 4N0 035 503 P,
4N0 035 503 J, 4N0 035 503 Q
(With different color codes for each number.)

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Kathrein Part Numbers: 52510940, 52511567, 52510941,
52510690, 52511155, 52511156, 52511157, 52511158,
52511159, 52511160, 52511161, 52511162, 52511163,
52511164, 52511165, 52511166, 52511238, 52511378,
52511461, 52511466, 52511471, 52511541, 52511546,
52511551, 52511556, 52511561, 52511647, 52511652,
52511657, 52511662, 52511667, 52511672, 52511677,
52511682, 52511687, 52511757, 52511844, 52511849,
52511854, 52511859, 52511864, 52511070, 52511522,
52511570, 52511523, 52511291, 52511521, 52511524,
52511525, 52511526, 52511527, 52511528, 52511529,
52511530, 52511531, 52511532, 52511533, 52511534,
52511535, 52511536, 52511537, 52511538, 52511540,
52511545, 52511550, 52511555, 52511560, 52511646,
52511651, 52511656, 52511661, 52511666, 52511671,
52511676, 52511681, 52511686, 52511755, 52511843,
52511848, 52511853, 52511858, 52511863, 52511564,
(list may be enlarged depending on color code)

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Contents
1. Introduction........................................................................................................................................4
2. Installation Options ............................................................................................................................4
3. Specification .......................................................................................................................................5
3.1. General Specification..................................................................................................................5
3.2. Cell phone...................................................................................................................................5
3.3. Remote heating ..........................................................................................................................5
3.4. Navigation...................................................................................................................................5
3.5. Satellite Radio.............................................................................................................................6
3.6. Bluetooth LE ...............................................................................................................................6
5. Safety and Recommendations............................................................................................................7

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1. Introduction
The DDA is an automotive roof top antenna module with integrated Bluetooth transceiver for
special usage. The Bluetooth circuit and electronics is designed to tunnel a not public described
data stream via Bluetooth generic protocol. The device rejects any communication requests from
Bluetooth devices not supporting the nonpublic payload format. The device is fully integrated to
the electronics of the car. The device will be integrated in the car only by the car-manufacturer or
in case of replacement by a professional garage. The end-user does not have to do any
installations or adjustments. There will be no aftermarket modules available since the device
needs to have a full range of ECUs available to communicate with.
The DDA is connected with the CAN-Bus of the car to communicate with the rest of the ECUs.
Additionally it has an antenna with integrated LNA circuits for reception of GNSS (GPS, GALILEO,
GLONASS, BEIDOU) and SDARS as well as an antenna for cell phone communication (2G, 3G and
4G) with frequency diplexer for 868 MHz ISM-Band. The availability of the separate ISM path is
given for versions without SDARS only. The Bluetooth transmitter is the only system with digital IO.
The other functions are analog circuits like in well known roof top car antennas.
2. Installation Options
Example for a principle setup in a car.
The DDA is designed for in-car use only. It is designed according the detailed specification of the
OEM (car-manufacturer). It MUST be well integrated into the automotive environment (Tambient
max. 95 °C) and needs to be installed by the OEM or in case of replacement by a professional
garage.

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3. Specification
3.1.General Specification
3.2.Cell phone
Radiator terrestrial omnidirectional
Band
Frequency
Service
Supported
[MHz]
Band 5, 8,
12, 13, 14,
17, 19, 20,
698 –960
GSM/WCDMA/LTE
Band 1, 2, 3,
4, 10,33, 34,
35, 36, 37,
39
1710 –2170
GSM/WCDMA/LTE
Band 7, 38,
40
2496 –2690
GSM/WCDMA/LTE
Supported Bands
Max Peak Gain 6 dBi
3.3.Remote heating
Radiator terrestrial omnidirectional
Band
Frequency
Service
Supported
[MHz]
ISM Band
867.5 –869,5
Remote Heating
Supported Bands
Max Peak Gain -6 dBi
3.4.Navigation
Radiator satellite pointing omnidirectional
Band
Frequency
Service
Supported
[MHz]
L1
1559,052 –1605,375
GNSS
Supported Bands
Max Gain of LNA 33 dB
Model Number
DDA01 / DDAECE01
Antenna/Cradle Connectors
FAKRA (male) DIN 72594-1/ISO 20860-1
DC Connector
MQS-Type
Impedance
50 Ohm
Power Requirements
Digital part :DC 9 V - 16 V; 100 mA
SDARS: 5V ±10 %; 150 mA phantom feed
GNSS: 5V ±10 %; 30 mA phantom feed
Phone/ISM: no DC feed

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3.5.Satellite Radio
Radiator satellite pointing omnidirectional
Band
Frequency
Service
Supported
[MHz]
S band
2320 –2345
SDARS
Supported Bands
Max Gain of LNA 31 dB
3.6.Bluetooth LE
4. Radiator terrestrial omnidirectional
Band
Frequency
Service
Supported
[MHz]
ISM-Band
2402 –2480
BTLE
Supported Bands
Max Gain of antenna -6 dBi
Max output power 1 mW (cable)
Each DDA is individually tested and factory set to ensure FCC compliance and cannot be
adjusted without factory reprogramming or disabling the hardware.

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5. Safety and Recommendations
WARNING: The DDA unit is designed for in-car use only. It MUST be well integrated into
the automotive environment (Tambient max. 95 °C) and needs to be installed by
the OEM (car-manufacturer) or in case of replacement by a professional
garage.
RF SAFETY WARNING: This device must be located at least 8 inches (20,3 cm) from all
persons. The car mounted cell phone module attached needs to fulfill the FCC
requirements.
WARNING: The Device must be installed no higher than 10 meters above ground.
This device complies with Part 15 of FCC rules. Operation is subject to two conditions:
1) This device may not cause harmful interference.
2) This device must accept any interference received, including interference that may
cause undesired operation.
Changes or modifications not expressly approved by KATHREIN Automotive could void the
authority to operate this equipment.