Test Report

FCC ID: OAYARS100-3

Test Report

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FCCID_219350

                                                                               FCC ID: OAYARS100—3

    EMCC                                                                                      Page 1 of 29
      DR. RASEK


                      TEST REPORT # EMCC—980162EB, 2001—0CT—23


 EQUIPMENT UNDER TEST:
     Type:                                  ARS 100—3
     Serial Number (ECU):                   1999460003
     Serial Number (frontend):              7541047395
     Equipment Category:                    Part 15 Forward—Looking Field Disturbance Sensor,
                                            Vehicle Radar System

     Manufacturer:                          Automotive Distance Control Systems GmbH, A.D.C.
     Address:                               Kemptener Strasse 99
                                            88131 Lindau (Bodensee)
                                            Germany
     Phone:                                 +49—8382—9699—0
     Fax:                                   +49—8382—9699—19


 RELEVANT STANDARD:                         47 CFR Part 15C — Intentional Radiators, §15.253


 MEASUREMENT PROCEDURE USED:

     [ anist C63.4—1992              [_] FCC/oET MP—4 (1987)            [X IEEE Std C95.3—1991


 TEST REPORT PREPARED BY:
     Reinhard Sauerschell
     EMCC DR. RASEK
     Moggast 72—74
     91320 Ebermannstadt
     Germany
     Phone: +49 9194 9016
     Fax: +49 9194 8125
     E—mail: r.sauerschell@emce.de


 TEST PERSONNEL:                                      HEAD OF LABORATORY:




     Reinhard Sauerschell                                  Winfried Hoffmann


EMCC DR. RASEK                            RADIO LABORATORIES                   Telephone:       +49—9194—9016
Moggast 72—74                              EMC LABORATORIES                    Telefax:         +49—9194—8125
91320 Ebermannstadt                                Akfredtisrungs              Mail:        emc.cons@emcc.de
Germany                                            Rat s3                      Web:          http:/www.emcc.de

FCC Registration # 90566                     TTI—P—G 094/94
                                             TTI—P—G 074/95
ARS100—3_FCC.doc


                                                                                                                                                 FCC ID: OAYARS100-3
                                                                                                                                      T est Report #EMCC-980162EB
                                                                                                                                                          Page 2 of 29
                                                                                                                                            I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253


CONTENTS                                                                                                                                                                                    Page


1     GENERAL INFORMATION.................................................................................................................................................................4
      1.1   Purpose..............................................................................................................................................................................4
      1.2   Limits and Reservations....................................................................................................................................................4
      1.3   Test Location .....................................................................................................................................................................4
      1.4   Manufacturer......................................................................................................................................................................4
      1.5   Dates ..................................................................................................................................................................................4
2     Product Description..........................................................................................................................................................................5
      2.1     Equipment Under Test (EUT).............................................................................................................................................5
      2.2     EUT Peripherals .................................................................................................................................................................5
      2.3     Mode of Operation During Testing ....................................................................................................................................5
      2.4     Modifications Required for Compliance............................................................................................................................5
3     Test Results Summary .....................................................................................................................................................................6
4     Antenna Requirement .......................................................................................................................................................................7
      4.1     Regulation..........................................................................................................................................................................7
      4.2     Result .................................................................................................................................................................................7
5     Conducted Emissions.......................................................................................................................................................................8
      5.1     Regulation..........................................................................................................................................................................8
      5.2     Test Equipment..................................................................................................................................................................8
      5.3     Test Procedures ................................................................................................................................................................8
      5.4     Test Results .......................................................................................................................................................................8
6     Radiated Emissions ..........................................................................................................................................................................9
      6.1      Regulation..........................................................................................................................................................................9
      6.2      Radiated Emissions Test, 9 kHz to 30 MHz (Magnetic Field Test) ................................................................................. 11
          6.2.1    Test Equipment ........................................................................................................................................................ 11
          6.2.2    Test Procedures ....................................................................................................................................................... 11
          6.2.3    Calculation of Field Strength Limits ........................................................................................................................ 12
          6.2.4    Field Strength Calculation........................................................................................................................................ 12
          6.2.5    Test Results.............................................................................................................................................................. 13
      6.3      Radiated Emissions Test, 30 MHz to 26.5 GHz ............................................................................................................... 14
          6.3.1    Test Equipment ........................................................................................................................................................ 14
          6.3.2    Test Procedures ....................................................................................................................................................... 14
          6.3.3    Calculation of Field Strength Limits ........................................................................................................................ 15
          6.3.4    Average Correction Factor....................................................................................................................................... 15
          6.3.5    Field Strength Calculation........................................................................................................................................ 15
          6.3.6    Test Results.............................................................................................................................................................. 16
      6.4      Radiated Emissions Test, 26.5 GHz to 231 GHz (outside the operating band)............................................................. 17
          6.4.1    Test Equipment ........................................................................................................................................................ 17
          6.4.2    Test Procedures ....................................................................................................................................................... 18
          6.4.3    Calculations of Spurious Emissions Limits............................................................................................................. 18
          6.4.4    Field Strength Calculation........................................................................................................................................ 19
          6.4.5    Power Density Calculation....................................................................................................................................... 19
          6.4.6    Test Results.............................................................................................................................................................. 20
      6.5      Radiated Emissions Test within the Band, 76.0 GHz to 77.0 GHz.................................................................................. 21
          6.5.1    Test Equipment ........................................................................................................................................................ 21
          6.5.2    Test Procedures ....................................................................................................................................................... 21
          6.5.3    Calculations of Power Density Limits ..................................................................................................................... 21
          6.5.4    Power Density Calculation....................................................................................................................................... 22
          6.5.5    Test Results.............................................................................................................................................................. 22
7     Operation within the Band, Frequency Stability ............................................................................................................................ 23
      7.1     Regulation........................................................................................................................................................................ 23
      7.2     Test Equipment................................................................................................................................................................ 23
      7.3     Test Procedures .............................................................................................................................................................. 23
      7.4     Test Results ..................................................................................................................................................................... 24
8     Radio Frequency Exposure ............................................................................................................................................................ 25
      8.1      Regulation........................................................................................................................................................................ 25
      8.2      Test Equipment................................................................................................................................................................ 27
      8.3      Test Procedures .............................................................................................................................................................. 27
      8.4      Calculations of Power Density Limits ............................................................................................................................. 27
      8.5      Power Density Calculation .............................................................................................................................................. 27
      8.6      Test Results ..................................................................................................................................................................... 28

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                                                                                                                                               FCC ID: OAYARS100-3
                                                                                                                                    T est Report #EMCC-980162EB
                                                                                                                                                        Page 3 of 29
                                                                                                                                          I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253

9     Miscellaneous Comments and Notes ............................................................................................................................................. 29
10           List of ANNEXES..................................................................................................................................................................... 29




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                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                               Page 4 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




1 GENERAL INFORMATION

1.1 Purpose
The purpose of this report is to show compliance to the FCC regulations for devices operating under
section 15.253 of the Code of Federal Regulations title 47.


1.2 Limits and Reservations
The test results in this report apply only to the particular Equipment Under Test (EUT) as declared in
this report.
This test report shall not be reproduced except in full without the written permission of EMCC DR.
RAŠEK.


1.3 Test Location
Company Name:                 EMCC DR. RAŠEK
Street:                       Moggast 72-74
City:                         91320 Ebermannstadt
Country:                      Germany
Laboratory:                   Test Laboratory of EMCC DR. RAŠEK
                              FCC Registration Number: 90566
                              This site has been fully described in a report submitted to the FCC, and
                              accepted in the letter dated February 09, 2000 Registration Number 90566.
Phone:                        +49-9194-9016
Fax:                          +49-9194-8125
E-Mail:                       emc.cons@emcc.de
Web:                          www.emcc.de


1.4 Manufacturer
Company Name:                 Automotive Distance Control Systems GmbH, A.D.C.
Street:                       Kemptener Strasse 99
City:                         88131 Lindau (Bodensee)
Country:                      Germany

Name for contact purposes:     Mr Walter Leichte
Phone:                  +49-8382-9699-89
Fax:                    +49-8382-9699-94
E-mail:                 wleichte@adc-gmbh.de


1.5 Dates
Date of receipt of EUT:       CW 39/2001
Test date:                    CW 39/2001 and 42/2001




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                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                               Page 5 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




2 PRODUCT DESCRIPTION

2.1 Equipment Under Test (EUT)

Description:                  Adaptive Cruise Control Pulse Doppler RADAR System
Device designation:           Part 15 Forward-Looking Field Disturbance Sensor, Vehicle Radar System
Type:                         ARS 100-3
No. of units:                 two, RADAR frontend, Electronic Control Unit
Serial number (ECU):          1999460003
Serial number (frontend):     7541047395
FCC ID:                       OAYARS100-3

Transmit Frequency:           76 to 77 GHz
Type of modulation:           FM – Pulse Doppler
Class of emission (ITU):      52M0P0N
Measurement distance:         0.5 to 150 m
RF power:                     200 µW average nominal
Antenna:                      Integral
Power:                        12.0 VDC (9 to 32 VDC range)


2.2 EUT Peripherals
The EUT was tested connected with
- CAN-bus simulator for start up and initializing purposes,
- standard laboratory DC power supply.


2.3 Mode of Operation During Testing
The equipment under test (EUT) was operated during the tests under the two following conditions:
- normal operation mode,
- CW mode (for test purposes only) for measuring the carrier power.
Normal operation mode appeared after power on automatically.
CW mode was set via the CAN-bus from a PC.


2.4 Modifications Required for Compliance
None




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                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                               Page 6 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




3 TEST RESULTS SUMMARY

Summary of Test Results

Requirement                                CFR Section                Report Section      Test Result
Antenna Requirement                        15.203                     4                   Pass
Conducted Emissions                        15.207                     5                   n.a.
Radiated Spurious Emissions                15.209, 15.205(b),         6                   Pass
                                           15.253(c)
Power Density Limits (Fundamental)         15.253(b)                  6                   Pass
Operation within the band, frequency       15.253(e)                  7                   Pass
stability
Radio frequency exposure                   15.253(f)                  8                   Pass



The client has made the determination that EUT Condition, Characterization, and Mode of Operation
are representative of production units, and meet the requirements of the specifications referenced
herein.

Consistent with Industry practice, measurement and test equipment not directly involved in obtaining
measurement results but having an impact on measurements (such as cable loss, antenna factors,
etc.) are factored into the "Correction Factor" documented in certain test results. Instrumentation
employed for testing meets tolerances consistent with known Industry Standards and Regulations.

The measurements contained in this report were made in accordance with the procedure ANSI C63.4 -
1992 and IEEE Std C95.3-1991. All requirements were found to be within the limits outlined in this
report.
The test results in this report apply only to the particular Equipment Under Test (EUT) as declared in
this report.

Test Personnel: Reinhard Sauerschell
Issuance Date: 2001-10-23




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                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                               Page 7 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




4 ANTENNA REQUIREMENT
Test Requirement: FCC CFR47, Part 15C

4.1 Regulation
15.203 An intentional radiator shall be designed to ensure that no antenna other than that furnished by
the responsible party shall be used with the device. The use of a permanently attached antenna or of
an antenna that uses a unique coupling to the intentional radiator shall be considered sufficient to
comply with the provisions of Part 15C. The manufacturer may design the unit so that the user can
replace a broken antenna, but the use of a standard antenna jack or electrical connector is prohibited.
This requirement does not apply to carrier current devices or to devices operated under the provisions
of Sections 15.211, 15.213, 15.217, 15.219, or 15.221. Further, this requirement does not apply to
intentional radiators that must be professionally installed, such as perimeter protection systems and
some field disturbance sensors, or to other intentional radiators which, in accordance with Section
15.31(d), must be measured at the installation site. However, the installer shall be responsible for
ensuring that the proper antenna is employed so that the limits in this Part are not exceeded.



4.2 Result
Device:                       Adaptive Cruise Control Pulse Doppler RADAR System
Type:                         ARS 100-3
Serial number (ECU):          1999460003
Serial number (frontend):     7541047395

Antenna is integral.
The EUT meets the requirements of this section.




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                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                               Page 8 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




5 CONDUCTED EMISSIONS
Test Requirement: FCC CFR47, Part 15C
Test Procedure: ANSI C63.4:1992

5.1 Regulation
Section 15.207 (a) For an intentional radiator which is designed to be connected to the public utility
(AC) power line, the radio frequency voltage that is conducted back onto the AC power line on any
frequency or frequencies within the band 450 kHz to 30 MHz shall not exceed 250 microvolts.
Compliance with this provision shall be based on the measurement of the radio frequency voltage
between each power line and ground at the power terminals.

Section 15.207 (d) Measurements to demonstrate compliance with the conducted limits are not
required for devices which only employ battery power for operation and which do not operate from the
AC power lines or contain provisions for operation while connected to the AC power lines. Devices that
include, or make provision for, the use of battery chargers which permit operating while charging, AC
adaptors or battery eliminators or that connect to the AC power lines indirectly, obtaining their power
through another device which is connected to the AC power lines, shall be tested to demonstrate
compliance with the conducted limits.


5.2 Test Equipment
Not applicable.

5.3 Test Procedures
Not applicable.

5.4 Test Results

Device:                       Adaptive Cruise Control Pulse Doppler RADAR System
Type:                         ARS 100-3
Serial number (ECU):          1999460003
Serial number (frontend):     7541047395

The EUT is powered from a vehicle battery. Therefore - according to Section 15.207 (d) - conducted
emissions measurements to demonstrate compliance with the conducted limits are not required.




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                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                               Page 9 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




6 RADIATED EMISSIONS
Test Requirement: FCC CFR47, Part 15C
Test Procedure: ANSI C63.4:1992

6.1 Regulation

Section 15.253 Operation within the bands 46.7-46.9 GHz and 76.0-77.0 GHz.
(a) Operation within the bands 46.7-46.9 GHz and 76.0-77.0 GHz is restricted to vehicle-mounted field
disturbance sensors used as vehicle radar systems. The transmission of additional information, such as
data, is permitted provided the primary mode of operation is as a vehicle-mounted field disturbance
sensor. Operation under the provisions of this section is not permitted on aircraft or satellites.
(b) The radiated emission limits within the bands 46.7-46.9 GHz and 76.0-77.0 GHz are as follows:
(1) If the vehicle is not in motion, the power density of any emission within the bands specified in this
section shall not exceed 200 nW/cm² at a distance of 3 meters from the exterior surface of the radiating
structure.
(2) For forward-looking vehicle-mounted field disturbance sensors, if the vehicle is in motion the power
density of any emission within the bands specified in this section shall not exceed 60 mW/cm² at a
distance of 3 meters from the exterior surface of the radiating structure.
(3) For side-looking or rear-looking vehicle-mounted field disturbance sensors, if the vehicle is in motion
the power density of any emission within the bands specified in this section shall not exceed 30
mW/cm² at a distance of 3 meters from the exterior surface of the radiating structure.
(c) The power density of any emissions outside the operating band shall consist solely of spurious
emissions and shall not exceed the following:
(1) Radiated emissions below 40 GHz shall not exceed the general limits in Section 15.209 of this part.
(2) Radiated emissions outside the operating band and between 40 GHz and 200 GHz shall not exceed
the following:
(i) For vehicle-mounted field disturbance sensors operating in the band 46.7-46.9 GHz: 2 pW/cm² at a
distance of 3 meters from the exterior surface of the radiating structure.
(ii) For forward-looking vehicle-mounted field disturbance sensors operating in the band 76-77 GHz:
600 pW/cm² at a distance of 3 meters from the exterior surface of the radiating structure.
(iii) For side-looking or rear-looking vehicle-mounted field disturbance sensors operating in the band 76-
77 GHz: 300 pW/cm² at a distance of 3 meters from the exterior surface of the radiating structure.
(3) For radiated emissions above 200 GHz from field disturbance sensors operating in the 76-77 GHz
band: the power density of any emission shall not exceed 1000 pW/cm² at a distance of 3 meters from
the exterior surface of the radiating structure.
(4) For field disturbance sensors operating in the 76-77 GHz band, the spectrum shall be investigated
up to 231 GHz.
(d) The provisions in Section 15.35 of this part limiting peak emissions apply.
(e) Fundamental emissions must be contained within the frequency bands specified in this section
during all conditions of operation. Equipment is presumed to operate over the temperature range -20 to
+50 degrees Celsius with an input voltage variation of 85% to 115% of rated input voltage, unless
justification is presented to demonstrate otherwise.




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                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                              Page 10 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253



Section 15.35 Measurement detector functions and bandwidths.
(b) On any frequency of frequencies above 1000 MHz, the radiated limits shown are based upon the
use of measurement instrumentation employing an average detector function. When average radiated
emission measurements are specified in the regulations, including emission measurements below 1000
MHz, there is also a limit on the radio frequency emissions, as measured using instrumentation with a
peak detector function, corresponding to 20 dB above the maximum permitted average limit for the
frequency being investigated unless a different peak emission limit is otherwise specified in the rules in
this part, e.g., see § 15.255. Unless otherwise specified, measurements above 1000 MHz shall be
performed using a minimum resolution bandwidth of 1 MHz. Measurement of AC power line conducted
emissions are performed using a CISPR quasipeak detector, even for devices for which average
radiated emission measurements are specified.

Section 15.209 (a) Except as provided elsewhere in this subpart, the emissions from an intentional
radiator shall not exceed the field strength levels specified in the following table:

 Frequency                       Field Strength                      Measurement distance
 (MHz)                           (microvolts/meter)                  (meters)
 0.009–0.490                     2400/F(kHz)                         300
 0.490–1.705                     24000/F(kHz)                        30
 1.705–30.0                      30                                  30
 30–88                           100                                 3
 88–216                          150                                 3
 216–960                         200                                 3
 Above 960                       500                                 3

(b) In the emission table above, the tighter limit applies at the band edges.

(c) The level of any unwanted emissions from an intentional radiator operating under these general
provisions shall not exceed the level of the fundamental emission. For intentional radiators which
operate under the provisions of other sections within this part and which are required to reduce their
unwanted emissions to the limits specified in this table, the limits in this table are based on the
frequency of the unwanted emission and not the fundamental frequency. However, the level of any
unwanted emissions shall not exceed the level of the fundamental frequency.

(d) The emission limits shown in the above table are based on measurements employing a CISPR
quasi peak detector except for the frequency bands 9–90 kHz, 110–490 kHz and above 1000 MHz.
Radiated emission limits in these three bands are based on measurements employing an average
detector.
(e) The provisions in §§ 15.31, 15.33, and 15.35 for measuring emissions at distances other than the
distances specified in the above table, determining the frequency range over which radiated emissions
are to be measured, and limiting peak emissions apply to all devices operated under this part.




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                                                                                      FCC ID: OAYARS100-3
                                                                                T est Report #EMCC-980162EB
                                                                                                   Page 11 of 29
                                                                                      I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253



6.2 Radiated Emissions Test, 9 kHz to 30 MHz (Magnetic Field Test)

6.2.1 Test Equipment

 Type                         Manufacturer/     Serial No.              Last Calibration     Next Calibration
                              Model No.
 Receiver                     Rohde & Schwarz   825132/015              Oct. 2000            Oct. 2001
 (9 kHz - 1 GHz)              ESS
 Loop Antenna                 R&S               892665/004              June 2000            June 2002
                              HFH 2-Z2


6.2.2 Test Procedures
For tabletop equipment, the EUT is placed on a 1 meter by 1.5 meters wide and 0.8 meter high
nonconductive table that sits on a flush mounted metal turntable. Floor standing equipment is placed
directly on the flush mounted metal turntable. The EUT is connected to its associated peripherals with
any excess I/O cabling bundled to approximately 1 meter.
Emissions from the unit are maximized by adjusting the orientation of the receive loop antenna and
rotating the EUT on the turntable. Manipulating the system cables also maximizes EUT emissions.
The EUT was tested as a tabletop equipment, connected with CAN-bus simulator and the power supply
to provide the 12 VDC operation power.
The test distance was reduced to 1 … 3 m and comparing the results with the calculated 3 m limit by
extrapolating the limit by using the square of an inverse linear distance extrapolation factor (40
dB/decade) according to section 15.31 (f) (2).
The tests were performed in normal operation mode. The initial step in collecting radiated data is a
peak scan of the measurement range with an EMI test receiver. The significant peaks within a margin
of 25 dB to the limit are then measured with quasi-peak detector.
Worst case radiated emissions are listed under chapter: test results.


 Radiated Emissions Test Characteristics
 (magnetic field test)
 Frequency range                                             9 kHz - 30 MHz
 Test distance                                               1 … 3 m*
 Test instrumentation resolution bandwidth                   200 Hz (9 kHz - 150 kHz)
                                                             9 kHz (150 kHz - 30 MHz)
 Test instrumentation detector                               QP
 Receive antenna height                                      1m
 Receive antenna orientation                                 0 - 360°
* Section 15.31 (f) (2) At frequencies below 30 MHz, measurements may be performed at a distance
closer than that specified in the regulations; however, an attempt should be made to avoid making
measurements in the near field. Pending the development of an appropriate measurement procedure
for measurements performed below 30 MHz, when performing measurements at a closer distance than

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                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                              Page 12 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253

specified, the results shall be extrapolated to the specified distance by either making measurements at
a minimum of two distances on at least one radial to determine the proper extrapolation factor or by
using the square of an inverse linear distance extrapolation factor (40 dB/decade).



6.2.3 Calculation of Field Strength Limits
Calculation: microvolts/meter to dBµV/m

                                           Specified parameters
          Frequency                       Field Strength                          Measurement distance
             (MHz)             (µV/m)                      (dBµV/m)                      (meters)
        0.009–0.490           266.7-4.9                    48.5-13.8                       300
        0.490–1.705           49.0-14.1                    33.8-23.0                        30
         1.705–30.0              30                          29.5                           30



6.2.4 Field Strength Calculation
No special calculation for obtaining the field strength in dBµV/m is necessary, because the EMI receiver
and the active loop antenna operate as a system, where the reading gives directly the field strength
result (dBµV/m). The gain, antenna factors and cable losses are already taken into consideration.

For test distance other than what is specified, but fulfilling the requirements of Section 15.31 (f) (2) the
field strength is calculated by adding additionally an extrapolation factor of 40 dB/decade (inverse
linear-distance for field strength measurements). The basic equation with a sample calculation is as
follows:

FS = RA + DF
where
    FS = Field Strength in dBµV/m
    RA = Receiver Amplitude in dBµV/m
    DF = Distance Extrapolation Factor in dB,
      where DF = 20 log (Dtest/Dspec) where Dtest = Test Distance and Dspec = Specified Distance

Assume the tests performed at a reduced Test Distance of 3 m instead of the Specified Distance
of 30 m giving a Distance Extrapolation Factor of DF = 40 log(3m/30m) = -40 dB.
Assuming a receiver amplitude of 40.7 dBµV/m is obtained. The distance factor of -40 dB are added,
giving a field strength of 0.7 dBµV/m. The 0.7 dBµV/m value can be mathematically converted to its
corresponding level in µV/m.

FS = 40.7 - 40 = 0.7 [dBµV/m]

Level in µV/m = Common Antilogarithm (0.7/20) = 1.1




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                                                                                                     FCC ID: OAYARS100-3
                                                                                              T est Report #EMCC-980162EB
                                                                                                                 Page 13 of 29
                                                                                                    I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




6.2.5 Test Results
Device:                                   Adaptive Cruise Control Pulse Doppler RADAR System
Type:                                     ARS 100-3
Serial number (ECU):                      1999460003
Serial number (frontend):                 7541047395


                                                PRODUCT EMISSIONS QUASI PEAK DATA
 No      Emission             Receiver    Test       Receiver   Distance      Result =    Spec       Margin   Remarks
         Frequency            Mode and    Distance   Reading    Extrapola-    Corrected   Limit
                              Bandwidth                         tion Factor   Reading
                                                     RA         for 3 m       FS
                                                                DF
         [MHz]                [kHz]       [m]        [dBµV/m]   [dB]          [dBµV/m]    [dBµV/m]   [dB]
 1       0.83                 10kHz/QP 1             42.0       -40           2.0         29.1       27.1
 2       1.170                10kHz/QP 1             37.9       -40           -2.1        26.3       28.4
 3       1.330                10kHz/QP 1             39.7       -40           -0.3        25.1       25.4
 4       4.835                10kHz/QP 1             36.9       -40           -3.1        29.5       32.6
 5       10.0                 10kHz/QP 1             42.0       -40           2.0         29.5       27.5
 6       30.0                 10kHz/QP 1             50.1       -40           10.1        29.5       19.4


The EUT meets the requirements of this section.

Test Personnel: Reinhard Sauerschell

Test Date: 2001-09-27




AR S 1 0 0 -3 _ FC C . D OC


                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                              Page 14 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




6.3 Radiated Emissions Test, 30 MHz to 26.5 GHz

6.3.1 Test Equipment

 Type                         Manufacturer/     Serial No.        Last Calibration       Next Calibration
                              Model No.
 Receiver                     Rohde & Schwarz   825132/015        Oct. 2000              Oct. 2001
                              ESS
 (30 MHz - 1 GHz)
 Antenna          EMCO 3143                     9604-1269         Oct. 2000              April 2002
 (30 MHz - 1 GHz)
 Receiver         Rohde & Schwarz                                 June 2000              Dec. 2001
                  ESAI-D                        833771/008
 (1 GHz - 26.5
                  ESMI-RF                       833827/002
 GHz)
                  ESMI-B1                       832504/005
 Antenna          Schwarzbeck                   137               Oct. 1999              Oct. 2001
 (1 GHz - 18 GHz) BBHA 9120 D
 Standard Gain    Mid Century                   1362/86           May 2000               May 2002
 Horn Antenna     MC 20/31B
 (18 GHz - 26.5
 GHz)


6.3.2 Test Procedures
For tabletop equipment, the EUT is placed on a 1 meter by 1.5 meters wide and 0.8 meter high
nonconductive table that sits on a flush mounted metal turntable. Floor standing equipment is placed
directly on the flush mounted metal turntable. The EUT is connected to its associated peripherals with
any excess I/O cabling bundled to approximately 1 meter.
The EUT was tested as a tabletop equipment, connected with CAN-bus simulator and the power supply
to provide the 12 VDC operation power.
The tests were performed in normal operation mode.
The initial step in collecting radiated data is a peak scan of the measurement range with an EMI test
receiver under closer distances as given in the rule. The significant peaks are then measured with the
appropriate distance and detectors.
Worst case radiated emissions are listed under chapter: test results.




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                                                                                  FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                              Page 15 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




 Radiated Emissions Test Characteristics
 Frequency range                                        30 MHz - 26,500 MHz
 Test distance                                          3m
 Test instrumentation resolution bandwidth              120 kHz (30 MHz - 1,000 MHz)
                                                        1 MHz (1,000 MHz - 26,500 MHz)
 Test instrumentation detector                          QP (30 MHz - 1,000 MHz)
                                                        AV (1,000 MHz - 26,500 MHz)
 Receive antenna scan height                            1m-4m
 Receive antenna polarization                           Vertical/Horizontal



6.3.3 Calculation of Field Strength Limits
Calculation: microvolts/meter to dBµV/m
 Frequency                       Field Strength                        Measurement         Remarks
                                                                       distance
 (MHz)                           (microvolts/meter) (dBµV/m)           (meters)
 30–88                           100                  40               3
 88–216                          150                  43.5             3
 216–960                         200                  46               3
 960-26,500                      500                  54               3




6.3.4 Average Correction Factor
NOTE: All AV measurements were performed using the test receiver’s average detector and the max.
hold facility; the average value measured directly without the necessity of additional correction factor.



6.3.5 Field Strength Calculation
The field strength is calculated by adding the Antenna Factor and Cable Factor. The basic equation
with a sample calculation is as follows:

FS = RA + AF + CF
where
    FS = Field Strength in dBµV/m
    RA = Receiver Amplitude in dBµV
    AF = Antenna Factor in dB(1/m)
    CF = Cable Attenuation Factor in dB

AR S 1 0 0 -3 _ FC C . D OC


                                                                                                          FCC ID: OAYARS100-3
                                                                                                  T est Report #EMCC-980162EB
                                                                                                                     Page 16 of 29
                                                                                                        I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253



Assume a receiver reading of 23.5 dBµV is obtained. The Antenna Factor of 7.4 dB(1/m) and a Cable
Factor of 1.1 dB are added, giving a field strength of 32 dBµV/m. The 32 dBµV/m value can be
mathematically converted to its corresponding level in µV/m.

FS = 23.5 + 7.4 + 1.1 = 32 [dBµV/m]

Level in µV/m = Common Antilogarithm (32/20) = 39.8


6.3.6 Test Results
Device:                                   Adaptive Cruise Control Pulse Doppler RADAR System
Type:                                     ARS 100-3
Serial number (ECU):                      1999460003
Serial number (frontend):                 7541047395


                                                PRODUCT EMISSIONS DATA 15.205 BANDS
 No      Emission             Receiver    Test       Receiver   Correction   Distance      Result = Spec       Polari-   Margin   Remark
         Frequency            Mode and    Distance   Reading    Factor       Extrapola-    Corrected Limit     zation
                              Bandwidth                                      tion Factor   Reading
                                                     RA         AF+CF        DF            FS                  Ant
         [MHz]                [kHz]       [m]        [dBµV]     [dB(1/m)]    [dB]          [dBµV/m] [dBµV/m]             [dB]

 1       12,711               1000, PK    3          18.3       40.3         0             58.6      74        v         15.4
                              1000, AV    3          12.4       40.3         0             52.7      54        v         1.3




The EUT meets the requirements of this section.

Test Personnel: Reinhard Sauerschell

Test Date:                      2001-10-18




AR S 1 0 0 -3 _ FC C . D OC


                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                              Page 17 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253



6.4 Radiated Emissions Test, 26.5 GHz to 231 GHz
    (outside the operating band)

6.4.1 Test Equipment

 Type                         Manufacturer/ Model   Serial No.           Last Calibration    Next
                              No.                                                            Calibration
 Receiver           Rohde & Schwarz                                      June 2000           Dec. 2001
                    ESAI-D                          833771/008
 (26.5 GHz - 110    ESMI-RF                         833827/002
 GHz)               ESMI-B1                         832504/005
 Waveguide Mixer    R&S/Tektronix
                    FS-Z40/WM782A                   840448/007
                    FS-Z60/WM782U                   840449/001
                    FS-Z75/WM782V                   840450/005
                    FS-Z110/WM782W                  840451/005
 LO Amplifier       R&S, FS-Z30                     775850/002
 Standard Gain Horn FMI/Pro N 2224-25               49                   May 2000            May 2002
 Ant.
 Standard Gain Horn FMI/ProN 2424-25                30                   May 2000            May 2002
 Ant.
 Standard Gain Horn Electrof./Tho WG25-25           001                  May 2000            May 2002
 Ant
 Standard Gain Horn Electrof./Tho WG27-25           001                  May 2000            May 2002
 Ant.
 Spectrum Analyzer Tektronix 2755A1                 B 010245
 Waveguide Mixer    Tektronix WM 490 F              B 020970
 Waveguide Mixer    Tektronix WM 490 G              B 020958
 Waveguide          Tektronix 119-1728-00           678B/0567
 Transition
 Diplexer           Textronix 015-0385-00           003/900
 Standard Gain Horn FMI/Pro N 2824-25               24                   May 2000            May 2002
 Ant.
 Standard Gain Horn FMI/Pro N 3024-25               001                  May 2000            May 2002
 Ant.
 Standard Gain Horn Electrof./Tho WR-3              001                  May 2000            May 2002
 Ant.




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                                                                                    FCC ID: OAYARS100-3
                                                                             T est Report #EMCC-980162EB
                                                                                                Page 18 of 29
                                                                                   I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




6.4.2 Test Procedures
The basic test setups and procedures are the same as for the tests 30 MHz to 26.5 GHz. Above 26.5
GHz additional external mixers have to be used, which means additional correction factors.
Due to high mixer loss at very high frequencies the distance between the EUT and the test antenna
was reduced to very low values (some cm) to detect any emissions.
The operating band 76 GHz to 77 GHz was excluded, but nevertheless up to 100 MHz into the band
the emissions were checked in respect of the frequency error test (refer to chapter 7).

 Radiated Emissions Test Characteristics
 Frequency range                                   26,500 MHz - 231,000 MHz
 Test distance                                     0.01 - 3 * m
 Test instrumentation resolution bandwidth         1 MHz
 Test instrumentation detector                     PK
 Receive antenna scan height                       no height scan performed due to high gain antenna
 Receive antenna polarization                      Vertical/Horizontal


* According to Section 15.31 (f) (1): At frequencies at or above 30 MHz, measurements may be
performed at a distance other than what is specified provided: measurements are not made in the near
field except where it can be shown that near field measurements are appropriate due to the
characteristics of the device; and it can be demonstrated that the signal levels needed to be measured
at the distance employed can be detected by the measurement equipment. (...) When performing
measurements at a distance other than that specified, the results shall be extrapolated to the specified
distance using an extrapolation factor of 20 dB/decade (inverse linear-distance for field strength
measurements; inverse-linear-distance-squared for power density measurements).



6.4.3 Calculations of Spurious Emissions Limits

 Frequency                       Field Strength                          Measurement        Remarks
                                                                         distance
 (MHz)                           (microvolts/meter) (dBµV/m)             (meters)
 26,500 – 40,000                 500                  54                 3


 Frequency                       Power Density                           Measurement        Remarks
                                                                         distance
 (MHz)                           pW/cm²             dBm/cm²              (meters)
 40,000 – 200,000                600                -62.2                3
 > 200,000                       1000               -60.0                3




AR S 1 0 0 -3 _ FC C . D OC


                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                              Page 19 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253

6.4.4 Field Strength Calculation
The field strength is calculated by adding the Antenna Factor and Mixer Loss. The basic equation with
a sample calculation is as follows:

FS = RA + AF + ML
where
    FS = Field Strength in dBµV/m
    RA = Receiver Amplitude in dBµV
    AF = Antenna Factor in dB(1/m)
    ML = Mixer Loss in dB

Assume a receiver reading of 10.2 dBµV is obtained. The Antenna Factor of 38.8 dB(1/m) and a Mixer
Loss of 22 dB are added, giving a field strength of 71 dBµV/m. The 71 dBµV/m value can be
mathematically converted to its corresponding level in µV/m.

FS = 10.2 + 38.8 + 22 = 71 [dBµV/m]

Level in µV/m = Common Antilogarithm (71/20) = 3,548


For test distance other than what is specified, but fulfilling the requirements of Section 15.31 (f)(1) the
field strength is calculated by adding additionally an extrapolation factor of 20 dB/decade (inverse
linear-distance for field strength measurements). The basic equation with a sample calculation is as
follows:

FS = RA + AF + ML + DF
where
    FS = Field Strength in dBµV/m
    RA = Receiver Amplitude in dBµV
    AF = Antenna Factor in dB(1/m)
    ML = Mixer Loss in dB
    DF = Distance Extrapolation Factor in dB,
      where DF = 20 log (Dtest/Dspec) where Dtest = Test Distance and Dspec = Specified Distance.

Assume the tests performed at a reduced Test Distance of 1 m instead of the Specified Distance
of 3 m giving a Distance Extrapolation Factor of DF = 20 log(1m/3m) = -9.5 dB.
Assuming a receiver reading of 10.2 dBµV is obtained. The Antenna Factor of 38.3 dB(1/m), the Mixer
Loss of 22 dB and the Distance Factor of -9.5 dB are added, giving a field strength of 61.5 dBµV/m.
The 61.5 dBµV/m value can be mathematically converted to its corresponding level in µV/m.

FS = 10.2 + 38.8 + 22 - 9.5 = 61.5 [dBµV/m]

Level in µV/m = Common Antilogarithm (61.5/20) = 1,188


6.4.5 Power Density Calculation
The power density is calculated by using the reading, mixer loss, effective aperture of the antenna and
distance correction factor (20 dB/dec relation).
The basic calculation is similar as described in the chapter above with the difference, that the result is
the power density:


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                                                                                                           FCC ID: OAYARS100-3
                                                                                                 T est Report #EMCC-980162EB
                                                                                                                    Page 20 of 29
                                                                                                       I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253

FS = RA + ML + DF - A
where
    FS = Field Strength in dBµV/m
    RA = Receiver Amplitude in dBµV
    ML = Mixer Loss in dB
    DF = Distance Extrapolation Factor in dB,
    A = effective Antenna Aperture in dB/cm²
       where DF = 20 log (Dtest/Dspec) where Dtest = Test Distance and Dspec = Specified Distance,
       and A = 10 log (effective Antenna Aperture in cm²).


6.4.6 Test Results
Device:                               Adaptive Cruise Control Pulse Doppler RADAR System
Type:                                 ARS 100-3
Serial number (ECU):                  1999460003
Serial number (frontend):             7541047395


                                  PRODUCT EMISSIONS DATA, 26.5 GHz < f < 40 GHz
 No      Emission Receiver        Test      Receiver   Antenna        Mixer      Distance      Result =    Spec       Polarization Margin
         Frequen- Mode and        Distan-   Reading    Factor         Loss       Extrapola-    Corrected   Limit
         cy       Bandwidth       ce                                             tion Factor   Reading                Eut/Ant
                                            RA         AF             ML         DF            FS
         [MHz]          [kHz]     [m]       [dBµV]     [dB(1/m)]      [dB]       [dB]          [dBµV/m]    [dBµV/m]                [dB]



 No emissions detected (noise only)




                                            PRODUCT EMISSIONS DATA, f > 40 GHz
 No      Emission Receiver        Test      Receiver   Mixer       Distance      Eff.          Result =    Spec        Polariza-   Margin
         Frequen- Mode and        Distan-   Reading    Loss        Extrapola-    Antenna       Corrected   Limit       tion
         cy       Bandwidth       ce                               tion Factor   Area          Reading
                                            RA         ML          DF            A             FS                      Ant
         [MHz]          [kHz]     [m]       [dBm]      [dB]        [dB]          [dB/cm²]      [dBm/cm²] [dBm/cm²]                 [dB]

 1       76,000         1000/PK   1         <-98 *     31          -9.5          5.8           <-82.3      -62.2       h/v         >20.1
 2       77,000         1000/PK   1         <-96 *     31          -9.5          5.8           <-80.3      -62.2       h/v         >18.1
 3       76,100         1000/PK   1         <-98 *     31          -9.5          5.8           <-82.3      -62.2       h/v         >20.1
 4       76,900         1000/PK   1         <-96 *     31          -9.5          5.8           <-80.3      -62.2       h/v         >18.1


NOTES: * noise only


The EUT meets the requirements of this section.

Test Personnel: Reinhard Sauerschell

Test Date: 2001-09-25

AR S 1 0 0 -3 _ FC C . D OC


                                                                                     FCC ID: OAYARS100-3
                                                                               T est Report #EMCC-980162EB
                                                                                                  Page 21 of 29
                                                                                     I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253

Radiated Emissions Test within the Band, 76.0 GHz to 77.0 GHz

6.4.7 Test Equipment

 Type                         Manufacturer/ Model     Serial No.              Last Calibration   Next
                              No.                                                                Calibration
 Receiver                     Rohde & Schwarz                                 June 2000          Dec. 2001
                              ESAI-D                  833771/008
 (26.5 GHz - 110              ESMI-RF                 833827/002
 GHz)                         ESMI-B1                 832504/005
 Waveguide Mixer              R&S/Tektronix
                              FS-Z40/WM782A           840448/007
                              FS-Z60/WM782U           840449/001
                              FS-Z75/WM782V           840450/005
                              FS-Z110/WM782W          840451/005
 LO Amplifier                 R&S, FS-Z30             775850/002
 Stand. Gain Horn             FMI/ProN 27240-10       24                      May 2000           May 2002
 Ant




6.4.8 Test Procedures
Refer to chapter 6.4.2.

 Radiated Emissions Test Characteristics
 Frequency range                                        76,000 MHz - 77,000 MHz
 Test distance                                          3m
 Test instrumentation resolution bandwidth              1 MHz
 Test instrumentation detector                          PK
 Receive antenna scan height                            no height scan performed due to high gain antenna
 Receive antenna polarization                           Vertical/Horizontal



6.4.9 Calculations of Power Density Limits

 Frequency                             Power Density               Measurement distance Remarks
 (MHz)                                 µW/cm²       dBm/cm²        (meters)
 76,000 MHz - 77,000 MHz               60           -12.2          3                      in motion
 76,000 MHz - 77,000 MHz               0.2          -37.0          3                      not in motion




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                                                                                                     FCC ID: OAYARS100-3
                                                                                                T est Report #EMCC-980162EB
                                                                                                                   Page 22 of 29
                                                                                                      I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




6.4.10 Power Density Calculation
Refer to appropriate chapter above.



6.4.11 Test Results
Device:                               Adaptive Cruise Control Pulse Doppler RADAR System
Type:                                 ARS 100-3
Serial number (ECU):                  1999460003
Serial number (frontend):             7541047395


                                                    PRODUCT EMISSIONS DATA
 No      Emission Receiver        Test      Receiver   Mixer   Distance      Eff.       Result =     Spec        Margin   NOTES
         Frequen- Mode and        Distan-   Reading    Loss    Extrapola-    Antenna    Corrected    Limit
         cy       Bandwidth       ce                           tion Factor   Area       Reading
                                            RA         ML      DF            A
         [MHz]          [kHz]     [m]       [dBm]      [dB]    [dB]          [dB/cm²]   [dBm/cm²]    [dBm/cm²]   [dB]

 1       76,309         1000/PK   3         -80        31      0             -9.1       -39.9        -37.0       2.9      1,2,3,4,5,6
 2       76,509         1000/PK   3         -56.9      31      0             -9.1       -16.8        -12.2       4.6      1,2,5,7




NOTES:                 1: Polarization of test antenna: copolarized with EUT sensor,
                       2: in motion state,
                       3: not in motion state,
                       4: normal operation mode (pulse mode),
                       5: CW mode,
                       6: LO,
                       7: carrier


The EUT meets the requirements of this section.

Test Personnel: Reinhard Sauerschell

Test Date: 2001-09-24




AR S 1 0 0 -3 _ FC C . D OC


                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                              Page 23 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




7 OPERATION WITHIN THE BAND, FREQUENCY STABILITY
Test Requirement: FCC CFR47, Part 15C
Test Procedure: ANSI C63.4:1992

7.1 Regulation

Section 15.253 Operation within the bands 46.7-46.9 GHz and 76.0-77.0 GHz.
(e) Fundamental emissions must be contained within the frequency bands specified in this section
during all conditions of operation. Equipment is presumed to operate over the temperature range -20 to
+50 degrees Celsius with an input voltage variation of 85% to 115% of rated input voltage, unless
justification is presented to demonstrate otherwise.



7.2 Test Equipment

 Type                         Manufacturer/ Model     Serial No.         Last Calibration    Next
                              No.                                                            Calibration
 Receiver                     Rohde & Schwarz                            June 2000           Dec. 2001
                              ESAI-D                  833771/008
 (26.5 GHz - 110              ESMI-RF                 833827/002
 GHz)                         ESMI-B1                 832504/005
 Waveguide Mixer              R&S/Tektronix
                              FS-Z40/WM782A           840448/007
                              FS-Z60/WM782U           840449/001
                              FS-Z75/WM782V           840450/005
                              FS-Z110/WM782W          840451/005
 LO Amplifier                 R&S, FS-Z30             775850/002
 Stand. Gain Horn             FMI/ProN 27240-10       24                 May 2000            May 2002
 Ant
 Climatic Test Unit           Heraeus Vötsch VLK      29143              March 2001          March 2002
                              07/90
 True RMS Digital             Hewlett-Packard 3478A   2301A17492         March 2001          March 2002
 Multimeter
 Programmable                 R&S NGPE40              451292/0529
 Power Source




7.3 Test Procedures
The EUT was installed in a climatic chamber, where the temperature was changed in 10°C steps from
–20° C to +50° C. The frequency was measured under normal operation mode (pulse mode) by
variation the input voltage (10.0 VDC, 12.0 VDC, 16.0 VDC, as declared by the manufacturer). The
frequency stability is the variation of the average frequency of the two measured –10 dB points of the
pulse spectrum over temperature and voltage referred to the value at normal temperature (20°C) and
normal voltage (12 VDC).



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                                                                                            FCC ID: OAYARS100-3
                                                                                       T est Report #EMCC-980162EB
                                                                                                          Page 24 of 29
                                                                                             I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




7.4 Test Results
Device:                               Adaptive Cruise Control Pulse Doppler RADAR System
Type:                                 ARS 100-3
Serial number (ECU):                  1999460003
Serial number (frontend):             7541047395

Temperature               Input Voltage Frequ. of lower Frequ. of upper    Calc. Mid           Drift
                                         –10dB point     –10dB point       Frequency
         C                     Volt         MHz              MHz              MHz             MHz
     -20 °C                     12          76508.9         76512.9         76510.9            63.7
                               10.0         76508.9         76513.0         76510.9            63.7
                               16.0         76509.0         76513.0         76511.0            63.8
     -10 °C                     12          76493.3         76497.5         76495.4            48.1
                               10.0         76493.3         76497.5         76495.4            48.2
                               16.0         76493.4         76497.6         76495.5            48.2
      0 °C                      12          76476.7         76481.3         76479.0            31.8
                               10.0         76477.1         76481.6         76479.4            32.1
                               16.0         76477.3         76481.8         76479.6            32.3
     10 °C                      12          76474.0         76478.7         76476.4            29.1
                               10.0         76474.1         76478.9         76476.5            29.2
                               16.0         76474.1         76479.0         76476.5            29.3
     20 °C                      12          76444.5         76450.0         76447.2            0.0
                               10.0         76446.6         76452.1         76449.3            2.1
                               16.0         76448.3         76453.7         76451.0            3.8
     30 °C                      12          76454.1         76459.1         76456.6            9.4
                               10.0         76453.6         76458.6         76456.1            8.9
                               16.0         76453.2         76458.2         76455.7            8.5
     40 °C                      12          76444.6         76449.7         76447.2            -0.1
                               10.0         76443.8         76448.8         76446.3            -0.9
                               16.0         76443.1         76448.1         76445.6            -1.7
     50 °C                      12          76422.5         76427.4         76424.9           -22.3
                               10.0         76421.1         76426.2         76423.7           -23.6
                               16.0         76419.6         76424.7         76422.1           -25.1

          Maximum frequency error [MHz]:                                  -25.1 / +63.8




Compared with the results in chapter 6.4.6 and 6.5.5, the EUT meets the requirements of this section.

Test Personnel: Reinhard Sauerschell

Test Date:                    2001-10-18 to 2001-10-19




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                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                              Page 25 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




8 RADIO FREQUENCY EXPOSURE
Test Requirement: FCC CFR47, Part 15C
Test Procedure: IEEE Std C95.3-1991

8.1 Regulation

Section 15.253 Operation within the bands 46.7-46.9 GHz and 76.0-77.0 GHz.
(f) Regardless of the power density levels permitted under this section, devices operating under the
provisions of this section are subject to the radio frequency radiation exposure requirements specified
in § 1.1307(b), § 2.1091 and § 2.1093 of this chapter, as appropriate. Applications for equipment
authorization of devices operating under this section must contain a statement confirming compliance
with these requirements for both fundamental emissions and unwanted emissions. Technical
information showing the basis for this statement must be submitted to the Commission upon request.

§ 2.1091 Radiofrequency radiation exposure evaluation: mobile devices.
(a) Requirements of this section are a consequence of Commission responsibilities under the National
Environmental Policy Act to evaluate the environmental significance of its actions. See subpart I of part
1 of this chapter, in particular § 1.1307(b).
(b) For purposes of this section, a mobile device is defined as a transmitting device designed to be
used in other than fixed locations and to generally be used in such a way that a separation distance of
at least 20 centimeters is normally maintained between the transmitter’s radiating structure(s) and the
body of the user or nearby persons. In this context, the term ‘‘fixed location’’ means that the device is
physically secured at one location and is not able to be easily moved to another location. Transmitting
devices designed to be used by consumers or workers that can be easily relocated, such as wireless
devices associated with a personal computer, are considered to be mobile devices if they meet the 20
centimeter separation requirement.
(c) Mobile devices that operate in the Cellular Radiotelephone Service, the Personal Communications
Services, the Satellite Communications Services, the General Wireless Communications Service, the
Wireless Communications Service, the Maritime Services and the Specialized Mobile Radio Service
authorized under subpart H of part 22 of this chapter, part 24 of this chapter, part 25 of this chapter,
part 26 of this chapter, part 27 of this chapter, part 80 of this chapter (ship earth stations devices only)
and part 90 of this chapter are subject to routine environmental evaluation for RF exposure prior to
equipment authorization or use if they operate at frequencies of 1.5 GHz or below and their effective
radiated power (ERP) is 1.5 watts or more, or if they operate at frequencies above 1.5 GHz and their
ERP is 3 watts or more. Unlicensed personal communications service devices, unlicensed millimeter
wave devices and unlicensed NII devices authorized under §15.253, § 15.255, and subparts D and E of
part 15 of this chapter are also subject to routine environmental evaluation for RF exposure prior to
equipment authorization or use if their ERP is 3 watts or more or if they meet the definition of a portable
device as specified in § 2.1093
(b) requiring evaluation under the provisions of that section. All other mobile and unlicensed
transmitting devices are categorically excluded from routine environmental evaluation for RF exposure
prior to equipment authorization or use, except as specified in §§ 1.1307(c) and 1.1307(d) of this
chapter. Applications for equipment authorization of mobile and unlicensed transmitting devices subject
to routine environmental evaluation must contain a statement confirming compliance with the limits
specified in paragraph (d) of this section as part of their application. Technical information showing the
basis for this statement must be submitted to the Commission upon request.

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                                                                                 FCC ID: OAYARS100-3
                                                                            T est Report #EMCC-980162EB
                                                                                               Page 26 of 29
                                                                                  I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253

(d) The limits to be used for evaluation are specified in § 1.1310 of this chapter. All unlicensed personal
communications service (PCS) devices and unlicensed NII devices shall be subject to the limits for
general population/uncontrolled exposure.
(1) For purposes of analyzing mobile transmitting devices under the occupational/controlled criteria
specified in § 1.1310 of this chapter, timeaveraging provisions of the guidelines may be used in
conjunction with typical maximum duty factors to determine maximum likely exposure levels.
(2) Timeaveraging provisions may not be used in determining typical exposure levels for devices
intended for use by consumers in general population/uncontrolled environments as defined in § 1.1310
of this chapter. However, ‘‘sourcebased’’ timeaveraging based on an inherent property or dutycycle of a
device is allowed. An example of this is the determination of exposure from a device that uses digital
technology such as a timedivision multipleaccess (TDMA) scheme for transmission of a signal. In
general, maximum average power levels must be used to determine compliance.
(3) If appropriate, compliance with exposure guidelines for devices in this section can be accomplished
by the use of warning labels and by providing users with information concerning minimum separation
distances from transmitting structures and proper installation of antennas.
(4) In some cases, e.g., modular or desktop transmitters, the potential conditions of use of a device
may not allow easy classification of that device as either mobile or portable (also see § 2.1093). In such
cases, applicants are responsible for determining minimum distances for compliance for the intended
use and installation of the device based on evaluation of either specific absorption rate (SAR), field
strength or power density, whichever is most appropriate.

§ 1.1307 Actions that may have a significant environmental effect, for which Environmental
Assessments (EAs) must be prepared.
(b) In addition to the actions listed in paragraph (a) of this section, Commission actions granting
construction permits, licenses to transmit or renewals thereof, equipment authorizations or
modifications in existing facilities, require the preparation of an Environmental Assessment (EA) if the
particular facility, operation or transmitter would cause human exposure to levels of radiofrequency
radiation in excess of the limits in §§ 1.1310 and 2.1093 of this chapter. Applications to the
Commission for construction permits, licenses to transmit or renewals thereof, equipment authorizations
or modifications in existing facilities must contain a statement confirming compliance with the limits
unless the facility, operation, or transmitter is categorically excluded, as discussed below. Technical
information showing the basis for this statement must be submitted to the Commission upon request.

§ 1.1310 Radiofrequency radiation exposure limits.

TABLE 1—LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE)—Continued

 Frequency range              Electric field   Magnetic field   Power density     Averaging time
      (MHz)                     strength         strength
                                                                 (mW/cm²)            (minutes)
                                 (V/m)             (A/m)

    1500–100,000                    -                -               1.0                30




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                                                                                      FCC ID: OAYARS100-3
                                                                                T est Report #EMCC-980162EB
                                                                                                   Page 27 of 29
                                                                                      I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




8.2 Test Equipment

 Type                         Manufacturer/ Model       Serial No.             Last Calibration   Next
                              No.                                                                 Calibration
 Receiver                     Rohde & Schwarz                                  June 2000          Dec. 2001
                              ESAI-D                    833771/008
 (26.5 GHz - 110              ESMI-RF                   833827/002
 GHz)                         ESMI-B1                   832504/005
 Waveguide Mixer              R&S/Tektronix
                              FS-Z40/WM782A             840448/007
                              FS-Z60/WM782U             840449/001
                              FS-Z75/WM782V             840450/005
                              FS-Z110/WM782W            840451/005
 LO Amplifier                 R&S, FS-Z30               775850/002
 Stand. Gain Horn             FMI/ProN 27240-10         24                     May 2000           May 2002
 Ant
 Standard Gain Horn Millitech SGH-10-RP000              128                    May 2000           May 2002
 Ant.
 Standard Gain Horn Electrof./Tho WG27-25               001                    May 2000           May 2002
 Ant.


8.3 Test Procedures
The radiation in the band 76 GHz to 77 GHz GHz was tested with standard gain horn antennas at a
distance of 0.2 m to the surface of the EUT.
Two operation modes were checked:
- vehicle in motion (carrier on, pulse mode),
- vehicle not in motion (carrier off).
The surface of the EUT was scanned with the antennas. Max. levels were detected in the copolarized
plane of the antenna of EUT.
Emissions outside the band are negligible.


8.4 Calculations of Power Density Limits

 Frequency                             Power Density                 Remarks
 (MHz)                                 mW/cm²       dBm/cm²
 1,500 to 100,000                      1.0          0




8.5 Power Density Calculation
Refer to appropriate chapter above.




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                                                                                                     FCC ID: OAYARS100-3
                                                                                                T est Report #EMCC-980162EB
                                                                                                                   Page 28 of 29
                                                                                                      I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253

8.6 Test Results
Device:                             Adaptive Cruise Control Pulse Doppler RADAR System
Type:                               ARS 100-3
Serial number (ECU):                1999460003
Serial number (frontend):           7541047395


                                                    PRODUCT EMISSIONS DATA
 No      Emission Receiver        Test      Receiver   Mixer   Distance      Eff.       Result =     Spec        Margin   NOTES
         Frequen- Mode and        Distan-   Reading    Loss    Extrapola-    Antenna    Corrected    Limit
         cy       Bandwidth       ce                           tion Factor   Area       Reading
                                            RA         ML      DF            A
         [MHz]          [kHz]     [m]       [dBm]      [dB]    [dB]          [dB/cm²]   [dBm/cm²]    [dBm/cm²]   [dB]

 1       76,486         1000/PK   0.2       -52.3      31      0             -9.1       -12.2        0           12.2     1,2,4,7
 2       76,486         1000/PK   0.2       -45.2      31      0             -9.1       -5.1         0           5.1      1,2,5,7
 3       76,312         1000/PK   0.2       -51.2      31      0             4.9        -25.1        0           25.1     1,3,5,6




NOTES:                 1: Polarization of test antenna: copolarized with EUT sensor,
                       2: in motion state,
                       3: not in motion state,
                       4: normal operation mode (pulse mode),
                       5: CW mode,
                       6: LO,
                       7: carrier


The EUT meets the requirements of this section.

Test Personnel: Reinhard Sauerschell

Test Date: 2001-09-24 to 2001-09-25




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                                                                                 FCC ID: OAYARS100-3
                                                                           T est Report #EMCC-980162EB
                                                                                              Page 29 of 29
                                                                                 I ssue Dat e: 2001-O CT -23
Test of Automotive Distance Control Systems GmbH, A.D.C. Type ARS 100-3, Serial number (ECU) 1999460003, Serial
                 number (frontend) 7541047395 to 47 CFR Part 15C - Intentional Radiators, §15.253




9 MISCELLANEOUS COMMENTS AND NOTES
None.




10 LIST OF ANNEXES


Following annexes are separated parts from this test report.


Description                                                                          Pages
Annex 1: Photographs of test setups                                                  5
Annex 2: Photographs of equipment under test (EUT), external views                   9
Annex 3: Photographs of equipment under test (EUT), internal views                   9




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Document Created: 2002-01-07 15:30:27
Document Modified: 2002-01-07 15:30:27

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