60320RAN.002

ANT

RF exposure

Harman Becker Automotive Systems NTG7RSU Automotive Rear Seat Unit for installation in cars with BT, WLAN, Display interface, interface to Head Unit T8GNTG7RSU T8GNTG7RSU ntg7rsu

60320RAN.002s

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456

Test report No: NIE: 60320RAN.002

Assessment report
RF EXPOSURE REPORT ACCORDING TO FCC 47 CFR Part 2.1091 ISED RSS-102 Issue 5:2015

(*) Identification of item under evaluation

Automotive infotainment System

(*) Trademark

Mercedes-Benz

(*) Model and /or type reference Other identification of the product
(*) Features

NTG7RSU
FCC ID: T8GNTG7RSU IC: 6434A-NTG7RSU
HW Version: C0
SW Version: E13.205 Bluetooth, WLAN

Manufacturer

HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH BECKER-GOERING-STR. 16 76307 KARLSBAD GERMANY

Test method requested, standard Summary

FCC 47 CFR Part 2.1091 Radiofrequency radiation exposure evaluation: mobile devices.
ISED RSS-102 Issue 5 (2015-03) ­ Radio Frequency Exposure Compliance of Radiocommunication Apparatus (All Frequency Bands)
IEEE Std C95.3TM -2002 (R2008). IEEE Recommended Practice for Measurements and Computations of Radio Frequency Electromagnetic Fields With Respect to Human Exposure to Such Fields, 100 kHz­300 GHz
IN COMPLIANCE

Approved by (name / position & signature)

Miguel Lacave Antennas Lab Manager

Date of issue

2019-10-25

MIGUEL LACAVE GARCÍA 2019.10.25 11:37:20 +02'00'

Report template No

FAN36_01
(*) "Data provided by the client"

Report No: (NIE) 60320RAN.002

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456
Index
Competences and guarantees ....................................................................................................3 General conditions ......................................................................................................................3 Data provided by the client..........................................................................................................3 Identification of the client.............................................................................................................3 Document history ........................................................................................................................4 General description of the device under evaluation.....................................................................4 RF Exposure Assessment result and verdict...............................................................................5 Appendix A: FCC RF Exposure information ................................................................................7
FCC RF Exposure evaluation .................................................................................................8 FCC MPE Evaluation .............................................................................................................9 Appendix B: ISED RF Exposure information .............................................................................10 ISED RF Exposure evaluation for mobile devices.................................................................11 ISED MPE Evaluation ..........................................................................................................12

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456
Competences and guarantees
In order to assure the traceability to other national and international laboratories, DEKRA has a calibration and maintenance program for its measurement equipment. DEKRA Testing and Certification S.A.U. guarantees the reliability of the data presented in this report, which is the result of the measurements and the tests performed to the item under test on the date and under the conditions stated on the report and, it is based on the knowledge and technical facilities available at DEKRA Testing and Certification at the time of performance of the test. DEKRA Testing and Certification S.A.U. is liable to the client for the maintenance of the confidentiality of all information related to the item under test and the results of the test. The results presented in this Assessment Report apply only to the particular item under test established in this document. IMPORTANT: No parts of this report may be reproduced or quoted out of context, in any form or by any means, except in full, without the previous written permission of DEKRA Testing and Certification S.A.U.
General conditions
1. This report is only referred to the item that has undergone the assessment. 2. This report does not constitute or imply on its own an approval of the product by the Certification Bodies
or competent Authorities. 3. This document is only valid if complete; no partial reproduction can be made without previous written
permission of DEKRA Testing and Certification S.A.U. 4. This test report cannot be used partially or in full for publicity and/or promotional purposes without
previous written permission of DEKRA Testing and Certification S.A.U. and the Accreditation Bodies
Data provided by the client
The following data has been provided by the client:
1. Information relating to the description of the sample ("Identification of the item tested", "Trademark", "Model and/or type reference tested").
2. Maximum output power and maximum antenna gain information.
3. The sample consists of an Automotive Rear Seat Unit (RSU) for installation in cars. Features: BT, WLAN, Display interface, interface to Head Unit.
DEKRA Testing and Certification S.A.U. declines any responsibility with respect to the information provided by the client and that may affect the validity of results.
Identification of the client
Harman Becker Automotive Systems GmbH Becker Göring Strasse 16. 76307. Karlsbad. Germany.

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456

Document history

Report number 60268RAN.002

Date 2019-10-25

First release

Description

General description of the device under evaluation
The device under evaluation consists of an Automotive Rear Seat Unit (RSU) for installation in cars. Features: BT, WLAN, Display interface, interface to Head Unit. According to the manufacturer, during its normal use, the separation distance between the device and the body of nearby users will be greater than 20 cm. In order to perform the assessment a conservative evaluation distance of 20 cm has been used. The rear seat unit contains two Bluetooth/WLAN module based on Broadcom´s BCM89359 chip. It provides the following features: - WLAN 2,4 GHz - WLAN 5 GHz (MIMO) - BT 2.0 + EDR - BT 3.0 The equipment specifications declared by the manufacturer for each supported technology and band are:

WLAN Chip

Technology / Mode

Band

Frequency (MHz)

Maximum Conducted
Output Power (dBm)

Antenna peak gain
(dBi)

Cable Maximum Maximum

loss E.I.R.P. E.I.R.P.

(dBm) (dBm)

(mW)

WLAN (SISO)

2.4 GHz 2412 - 2484

WLAN (SISO/MIMO) 5.7 GHz 4910 - 5825

1

WLAN (MIMO)

5.7 GHz 5745 - 5825

Bluetooth

2.4 GHz 2402 - 2480

WLAN (SISO)

2.4 GHz 2412 - 2484

WLAN (SISO/MIMO) 5.7 GHz 5745 - 5825

2

WLAN (MIMO)

5 GHz 4910 - 5825

Bluetooth

2.4 GHz 2405 - 2470

20.00 20.00 20.00 10.00 20.00 20.00 20.00 10.00

0.30 0.30 -0.10 0.50 0.70 1.10 0.60 1.00

Table 1: Equipment specifications

2.51

17.80

60.19

2.31

17.99

62.95

2.51

17.40

54.89

2.31

8.19

6.59

2.12

18.58

72.11

1.82

19.29

84.82

2.12

18.48

70.47

1.82

9.19

8.29

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456
RF Exposure Assessment result and verdict
FCC assessment: Limits for Maximum Permissible Exposure (MPE) to comply with FCC 47 CFR § 2.1091 are defined in "§1.1310 Radiation Exposure limits, paragraph (e)":

WLAN Chip
1
2

Technology / Mode
WLAN (SISO) WLAN (SISO/MIMO)
WLAN (MIMO) Bluetooth
WLAN (SISO) WLAN (SISO/MIMO)
WLAN (MIMO) Bluetooth

Band
2.4 GHz 5.7 GHz 5.7 GHz 2.4 GHz 2.4 GHz 5.7 GHz 5 GHz 2.4 GHz

Frequency (MHz)
2412 - 2484 5745 - 5825 5745 - 5825 2402 - 2480 2412 - 2484 5745 - 5825 4910 - 5825 2405 - 2470

Distance (cm)
20.00 20.00 20.00 20.00 20.00 20.00 20.00 20.00

Power density (mW/cm2)
0.01 0.01 0.01 0.00 0.01 0.02 0.01 0.00

FCC General Population
Limit (mW/cm2)
1.00
1.00
1.00
1.00
1.00 1.00
1.00
1.00

Table 2: Assessment result and verdict

Verdict
Pass Pass Pass Pass Pass Pass Pass Pass

Simultaneous Transmission assessment: The device supports simultaneous transmission for the following technology combinations:
1. Chip1 (WLAN 2.4 GHz SISO and WLAN 5 GHz SISO) and Chip 2 (WLAN 2.4 GHz SISO and WLAN 5 GHz SISO)
2. Chip 1 (WLAN 2.4 GHz SISO and WLAN 5 GHz SISO) and Chip 2 (WLAN 5 GHz MIMO) 3. Chip1 (WLAN 2.4 GHz SISO and Bluetooth) and Chip 2 (WLAN 5 GHz MIMO) 4. Chip1 (WLAN 2.4 GHz SISO and Bluetooth) and Chip 2 (WLAN 2.4 GHz SISO and Bluetooth) 5.

Simultaneous technologies and modes

Result

Chip 1 (WLAN 2.4 GHz (SISO) + WLAN 5 GHz (SISO/MIMO)) + Chip 2 (WLAN 2.4 GHz (SISO) + WLAN 5 GHz (SISO/MIMO))

0.06

Chip 1 (WLAN 2.4 GHz (SISO) + WLAN 5 GHz (SISO/MIMO)) + Chip 2 (WLAN 5 GHz (SISO/MIMO) + WLAN 5 GHz (MIMO))

0.06

Chip 1 (WLAN 2.4 GHz (SISO) + Bluetooth) + Chip 2 (WLAN 5 GHz (SISO/MIMO) + WLAN 5 GHz (MIMO))

0.04

Chip 1 (WLAN 2.4 GHz (SISO) + Bluetooth) + Chip 2 (WLAN 2.4 GHz (SISO) + Bluetooth)

0.03

Table 3: Simultaneous Transmission assessment

Limit
1 1 1 1

Verdict
Pass Pass Pass Pass

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456
ISED assessment:
Limits for RF Field Strength to comply with RSS-102 Issue 5 are defined in "Health Canada's RF exposure guideline, Safety code 6":

WLAN Chip

Technology / Mode

Band

Frequency (MHz)

Distance (cm)

Power
density (W/m2)

WLAN (SISO)

2.4 GHz 2412 - 2484 20.00

0.12

WLAN (SISO/MIMO) 5.7 GHz 5745 - 5825 20.00

0.13

1

WLAN (MIMO)

5.7 GHz 5745 - 5825 20.00

0.11

Bluetooth

2.4 GHz 2402 - 2480 20.00

0.01

WLAN (SISO)

2.4 GHz 2412 - 2484 20.00

0.14

WLAN (SISO/MIMO) 5.7 GHz 5745 - 5825 20.00

0.17

2

WLAN (MIMO)

5 GHz 4910 - 5825 20.00

0.14

Bluetooth

2.4 GHz 2405 - 2470 20.00

0.02

Table 4: Assessment result and verdict

ISED General Public
Limit (W/m2)
5.37
8.72
9.71
5.35
5.37 9.71
8.72
5.36

Verdict
Pass Pass Pass Pass Pass Pass Pass Pass

Simultaneous Transmission assessment: The device supports simultaneous transmission for the following technology combinations:
1. Chip1 (WLAN 2.4 GHz SISO and WLAN 5 GHz SISO) and Chip 2 (WLAN 2.4 GHz SISO and WLAN 5 GHz SISO)
2. Chip 1 (WLAN 2.4 GHz SISO and WLAN 5 GHz SISO) and Chip 2 (WLAN 5 GHz MIMO) 3. Chip1 (WLAN 2.4 GHz SISO and Bluetooth) and Chip 2 (WLAN 5 GHz MIMO) 4. Chip1 (WLAN 2.4 GHz SISO and Bluetooth) and Chip 2 (WLAN 2.4 GHz SISO and Bluetooth)

Simultaneous technologies and modes

Result

Limit

Chip 1 (WLAN 2.4 GHz (SISO) + WLAN 5 GHz (SISO/MIMO)) + Chip 2 (WLAN 2.4 GHz (SISO) + WLAN 5 GHz (SISO/MIMO))

0.08

1

Chip 1 (WLAN 2.4 GHz (SISO) + WLAN 5 GHz (SISO/MIMO)) + Chip 2 (WLAN 5 GHz (SISO/MIMO) + WLAN 5 GHz (MIMO))

0.07

1

Chip 1 (WLAN 2.4 GHz (SISO) + Bluetooth) + Chip 2 (WLAN 5 GHz (SISO/MIMO) + WLAN 5 GHz (MIMO))

0.06

1

Chip 1 (WLAN 2.4 GHz (SISO) + Bluetooth) + Chip 2 (WLAN 2.4 GHz (SISO) + Bluetooth)

0.05

1

Table 5: Simultaneous Transmission assessment

Verdict
Pass Pass Pass Pass

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456
Appendix A: FCC RF Exposure
information

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456
FCC RF Exposure evaluation
Devices operating in standalone mobile device exposure conditions may contain a single transmitter or multiple transmitters that do not transmit simultaneously. A minimum test separation distance  20 cm is required between the antenna and radiating structures of the device and nearby persons to apply mobile device exposure limits. The distance must be at least 20 cm and fully supported by the operating and installation configurations of the transmitter and its antenna(s), according to the source-based time-averaged maximum power requirements of § 2.1091(d)(2). In cases where cable losses or other attenuations are applied to determine compliance, the most conservative operating configurations and exposure conditions must be evaluated. The minimum test separation distance required for a device to comply with mobile device exposure conditions must be clearly identified in the installation and operating instructions, for all installation and exposure conditions, to enable users and installers to comply with RF exposure requirements. For mobile devices that have the potential to operate in portable device exposure conditions, similar to the configurations described in § 2.1091(d)(4), a KDB inquiry is required to determine the SAR test requirements for demonstrating compliance.
When a device qualifies for the categorical exclusion provision of § 2.1091(c), the minimum test separation distance may be estimated, when applicable, by simple calculations according to plane-wave equivalent conditions, to ensure the transmitter and its antenna(s) can operate in manners that meet or exceed the estimated distance. The source-based time-averaged maximum radiated power, according to the maximum antenna gain, must be applied to calculate the field strength and power density required to establish the minimum test separation distance. When the estimated test separation distance becomes overly conservative and does not support compliance, MPE measurement or computational modeling may be used to determine the required minimum separation distance.
According to §1.1310 Radiofrequency radiation exposure limits, paragraph (e), the limits for Maximum Permissible Exposure (MPE) to radiofrequency electromagnetic fields are:

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456

FCC MPE Evaluation
Each supported transmission technology will be evaluated to determine if it is in compliance with limits for Maximum Permissible Exposure (MPE) to radiofrequency electromagnetic fields.

In order to perform the assessment, the following equations have been used for the calculations; these equations are accurate in the far-field of an antenna and will over-predict power density in the near field, where they could be used for making a "worst case" or conservative prediction:

Power density:

S[mW

/ cm2 ] 

PE.I.R.P.[mW ] 4R[cm]2

Minimum compliance distance: Rmin [cm] 

PE.I.R.P. [mW ] 4S[mW / cm2 ]

Where:
S = power density PE.I.R.P. = Equivalent isotropically radiated power R = distance to the center of radiation of the antenna (evaluation distance) Rmin = distance to the center of radiation of the antenna

Multiple frequencies assessment When multiple sources are introduced into an environment, it becomes necessary to address the sources interdependently, since each source will contribute some percentage of the maximum exposure toward the total exposure at a fixed location. The sum of the ratios of the exposure from each source to the corresponding maximum exposure for the frequency of each source must be evaluated.

The exposure complies with the maximum permissible exposure if the sum of the ratios is less than unity:

n

Si < 1

 MPE i1

i

Where Si is the power flux density of each source; MPEi is the power flux density basic restriction of each source.

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456
Appendix B: ISED RF Exposure
information

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456
ISED RF Exposure evaluation for mobile devices
According to RSS-102 Issue 5, Paragraph "4. Exposure Limits", Industry of Canada has adopted the RF field strength limits established in Health Canada's RF exposure guideline, Safety code 6:

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DEKRA Testing and Certification, S.A.U. Parque Tecnológico de Andalucía, c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España C.I.F. A29 507 456

ISED MPE Evaluation
Each supported transmission technology will be evaluated to determine if it is in compliance with RSS-102 Issue 5, RF Field Strength Limits for devices used by the General Public.

In order to perform the assessment, the following equations have been used for the calculations; these equations are accurate in the far-field of an antenna and will over-predict power density in the near field, where they could be used for making a "worst case" or conservative prediction:

Power density:

S[W

/ m2] 

PE.I .R.P.[W ] 4R[m]2

Minimum compliance distance: Rmin [m] 

PE.I .R.P.[W ] 4S[W / m2 ]

Where:
S = power density PE.I.R.P. = Equivalent isotropically radiated power R = distance to the center of radiation of the antenna (evaluation distance) Rmin = distance to the center of radiation of the antenna

Multiple frequencies assessment
When multiple sources are introduced into an environment, it becomes necessary to address the sources interdependently, since each source will contribute some percentage of the maximum exposure toward the total exposure at a fixed location. The sum of the ratios of the exposure from each source to the corresponding maximum exposure for the frequency of each source must be evaluated.

The exposure complies with the maximum permissible exposure if the sum of the ratios is less than unity:

n

Si < 1

 MPE i1

i

Where Si is the power flux density of each source; MPEi is the power flux density basic restriction of each source.

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