Test Report - YCP-MB1263-000.pdf

FCC ID: YCP-MB1263-000

Test Report

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FCCID_4469808

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                                                            TEST REPORT
 N°: 159450-732210-A (FILE#1014399)                                                                                                                   Version : 02


 Subject                                  Electromagnetic compatibility tests according to the standards:
                                                    FCC CFR 47 Part 15, Subpart B.
                                                    ANSI C63.4 (2014)
                                                    ICES-003 (2016)

 Issued to                                                               STMicroelectronics SAS
                                                                         190 Avenue Celestin Coq
                                                                         13106 – ROUSSET
                                                                         FRANCE

 Apparatus under test
  Product                                                               Electronic Evaluation Board
  Trade mark                                                            ST
  Manufacturer                                                          STMicroelectronics SAS
  Family range                                                          STM32MP157C-EV1 / STM32MP157A-EV1
  Model under test                                                      STM32MP157C-EV1
  Serial number                                                         118
  FCCID                                                                 YCP-MB1263-000

 Conclusion                                                              See Test Program chapter
 Test date                                                               December 20, 2018 and February 25, 2019
 Test location                                                           MOIRANS
 Sample receipt date                                                     October 19, 2018 and February 25, 2019
 Composition of document                                                 25 pages

 Document issued on                                                      March 6, 2019

                       Written by :                                                                                   Approved by :
                    Nathalie BUGANZA                                                                                 Anthony MERLIN
                     Tests operator                                                                                 Technical manager


 This document shall not be reproduced, except in full, without the written approval of the LCIE. This document contains results related only to the items tested. It does not
imply the conformity of the whole production to the items tested. Unless otherwise specified or rule defined by the test method, the decision of conformity doesn’t take into
account the uncertainty of measures. This document doesn’t anticipate any certification decision. The COFRAC accreditation attests the technical capability of the testing
laboratory for the only tests covered by the accreditation. If some tests mentioned in this report are carried out outside the framework of COFRAC accreditation, they are
indicated by the symbol .


                                                          PUBLICATION HISTORY

  Version                     Date                               Author                                             Modification
     01                March 6, 2019                     Nathalie BUGANZA                                   Creation of the document
     02                March 11, 2019                    Nathalie BUGANZA                                        Adding of FCCID
Each new edition of this test report replaces and cancels the previous edition. The control of the old editions of report is under responsibility of client.




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                                                               SUMMARY

1.      TEST PROGRAM ............................................................................................................................. 4
2.      EQUIPMENT UNDER TEST: CONFIGURATION (DECLARED BY PROVIDER) .............................. 5
3.      MEASUREMENT OF CONDUCTED EMISSION .............................................................................. 9
4.      MEASUREMENT OF RADIATED EMISSION (30MHZ-6GHZ) ....................................................... 16
5.      UNCERTAINTIES CHART .............................................................................................................. 25




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1.        TEST PROGRAM

1.1.      REQUIREMENTS FOR DISTURBANCE EMISSIONS

Standard:
    FCC Part 15, Subpart B (Digital Devices)
    ANSI C63.4 (2014)
    ICES-003 (2016)

                                                                                                                                     RESULTS
EMISSION TEST                                                                        LIMITS
                                                                                                                                    (Comments)
                                                          Frequency              Quasi-peak value            Average value
Limits for conducted disturbance
at mains ports                                           0.15-0.5MHz                   79 dBµV                  66 dBµV                 PASS
150kHz-30MHz                                             0.5-30MHz                   73 dBµV             60 dBµV
                                                         Frequency                      Quasi-peak value @3m
                                                       30MHz-88MHz                           49.5 dBµV/m
Radiated emissions
                                                      88MHz-216MHz                           53.9 dBµV/m                                PASS
30MHz-1GHz
                                                      216MHz-960MHz                          56.9 dBµV/m
                                                       Above 960MHz                          60.0 dBµV/m
                                                                                                       Average value
                                                          Frequency               Peak value @3m
Radiated emissions                                                                                         @3m
1GHz-6GHz*                                                                                                                              PASS
                                                         1GHz-6GHz                  80.0 dBµV/m               60.0 dBµV/m

NP: Not Performed / NA: Not Applicable / NR: Not Requested by the customer (It cannot be taken into account for the declaration of conformity)
*§15.33: The highest internal source of a testing device is defined like more the highest frequency generated or used in the testing device or on which
the testing device works or agrees.
- If the highest frequency of the internal sources of the testing device is lower than 108 MHz, measurement must be only performed until 1GHz.
- If the highest frequency of the internal sources of the testing device ranges between 108 MHz and 500 MHz, measurement must be only performed
until 2GHz.
- If the highest frequency of the internal sources of the testing device ranges between 500 MHz and 1 GHz, measurement must be only performed
until 5GHz.
If the highest frequency of the internal sources of the testing device is above 1 GHz, measurement must be only performed until 5 times the highest
frequency or 40 GHz, while taking smallest of both.




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2.       EQUIPMENT UNDER TEST: CONFIGURATION (DECLARED BY PROVIDER)

2.1.     INFORMATIONS

The STM32MP157C-EV1 and STM32MP157A-EV1 Evaluation boards are high-end development platforms for
STM32MP157 microprocessor devices.
Version C supports encryption (Advanced Encryption Standard, Data Encryption Standard and Triple Data Encryption
Standard): it is this version, the most constraining, which has been submitted to the EMC tests
All tests describe in this report have been performed on STM32MP157C-EV1

2.2.     HARDWARE IDENTIFICATION (EUT AND AUXILIARIES):

Equipment under test (EUT):
STM32MP157C-EV1                                                  Serial Number: 118




                                                 Equipment Under Test

Power supply:
During all the tests, EUT is supplied by Vnom: 120 VAC or/and 240 VAC
For measurement with different voltage, it will be presented in test method.

 Name              Type                     Rating                   Reference / Sn              Comments
                                                              CINCON ELECTRONICS CO. LTD
Supply      AC  DC  Battery       100-240V 50-60Hz                                                 -
                                                                   Model: TRG30R050V




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Voltage table used:
                Type                                                    Measurement performed:
                 AC                                     120VAC/60Hz                                240VAC/50Hz
                DC                                         +....VDC                                   -....VDC
        USB (Laptop auxiliary)                   120VAC/60Hz (Laptop auxiliary)             240VAC/50Hz(Laptop auxiliary)


Inputs/outputs - Cable:
                                                   Length       Declared
   Access                   Type                                             Shielded      Under test           Comments
                                                  used (m)        <3m
   Supply               AC Port                       /                                                     Wall plug
 ETHERNET           Communication Port               10                                                        RJ45
    CAN             Communication Port                1                                                       SubD9
   Headset              I/O Port                      1                                                        Jack
Speaker OUT             I/O Port                      1                                                        Jack
  USB_OTG               I/O Port                     0.2                                                       USB
 USB HOST               I/O Port                      /                                                        USB
 USB HOST               I/O Port                      /                                                        USB
 USB HOST               I/O Port                      1                                                        USB
 USB HOST               I/O Port                      1                                                        USB
    UART                I/O Port                     10                                                  Maintenance port
 SPDIF Input            I/O Port                      1                                       
SPDIF Output            I/O Port                      1                                       

Auxiliary equipment used during test:
         Type                  FCC Id                            Reference                          Sn             Comments
        Laptop                 ACER                                  -                               -               Laptop
    USB Key (x 3)                 -                                  -                               -            USB Key (x 3)
      Headphone                   -                                  -                               -             Headphone



2.3.     EUT CONFIGURATION – RUNNING MODE


                                                        Hardware information
Highest internal frequency (PLL, Quartz, Clock, Microprocessor…):             FHighest:          650                MHz
Firmware (if applicable):                                                       V. :                        /
                                                                                           ST OpenSTLinux - Weston - (A Yocto
                                                                                          Project Based Distro) 2.4+openstlinux-
Software (if applicable): For conducted emission test                           V. :
                                                                                           4.14-rocko-mp1-18-11-02 stm32mp1
                                                                                                          ttyS3
                                                                                           ST OpenSTLinux - Weston - (A Yocto
                                                                                          Project Based Distro) 2.4+openstlinux-
Software (if applicable): For radiated emission test                            V. :
                                                                                           4.19-rocko-mp1-19-02-20 stm32mp1
                                                                                                          ttyS3




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        Access                                                 Configuration:
                           Process                Ethernet ping : DUT response to ping is recorded
        Ethernet           Auxiliary for test     Auxiliary PC pings the DUT every ~500ms
                           Performance criteria   /
                           Process                CAN data transmission status shown and recorded
         CAN               Auxiliary for test     /
                           Performance criteria   /
                                                  USB Host tests : File transfer on two keys, mouse and keyboard -> no
                           Process
                                                  error reported at Kernel
       USB Host
                           Auxiliary for test     2 USB keys + mouse + keyboard
                           Performance criteria
                                                  Audio/Video file on a USB key is displayed on DSI display and Headset
                           Process
 AUDIO/VIDEO/USB                                  jack
       OTG                 Auxiliary for test     /
                           Performance criteria
                           Process                Real time camera capture displayed on DSI
       CAMERA              Auxiliary for test     /
                           Performance criteria


2.4.    EQUIPMENT MODIFICATIONS

 None              Modification:

2.5.    SPECIAL ACCESSORIES

None

2.6.    FIELD STRENGTH CALCULATION

The field strength is calculated by adding the Antenna Factor and Cable Factor, and subtracting the Amplifier Gain (if
any) from the measured reading. The basic equation with a sample calculation is as follow:

FS = RA + AF + CF – AG

Where        FS = Field Strength
             RA = Receiver Amplitude
             AF = Antenna Factor
             CF = Cable Factor
             AG = Amplifier Gain

Assume a receiver reading of 52.5dBµV is obtained. The antenna factor of 7.4 and a cable factor of 1.1 is added. The
amplifier gain of 29dB is subtracted, giving field strength of 32 dBµV/m.
FS = 52.5 + 7.4 + 1.1 – 29 = 32 dBµV/m
The 32 dBµV/m value can be mathematically converted to its corresponding level in µV/m.
Level in µV/m = Common Antilogarithm [(32dBµV/m)/20] = 39.8 µV/m.




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2.7.    CALIBRATION DATE

The calibration intervals are extended at 12+/-1 or 24+/-1 months. This extended interval is based on the fact that there
is sufficient calibration data to statistically establish a trend or based on experience of use of the test equipment to
assure good measurement results for a longer period




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3.     MEASUREMENT OF CONDUCTED EMISSION

3.1.   ENVIRONMENTAL CONDITIONS

Date of test                 :   December 20, 2018
Test performed by            :   Nicolas BILLAUD
Atmospheric pressure (hPa)   :   995
Relative humidity (%)        :   35
Ambient temperature (°C)     :   23

3.2.   TEST SETUP

Mains terminals
The EUT and auxiliaries are set:
 80cm above the ground on the non-conducting table (Table-top equipment)
 10cm above the ground on isolating support (Floor standing equipment)
The distance between the EUT and the LISN is 80cm. The EUT is 40cm away for the vertical ground plane.

The EUT is powered by Vnom.
The EUT is powered through a LISN (measure). Auxiliaries are powered by another LISN.




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                                     Test setup




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3.3.       TEST METHOD

The product has been tested according to ANSI C63.4 and FCC Part 15 subpart B. The product has been tested with a
voltage sets (see the table voltage in §2.2) and compared to the FCC Part 15 subpart B. Measurement bandwidth was
9kHz from 150kHz to 30MHz. This was followed by a Quasi-Peak, i.e. CISPR measurement for any strong signal. If the
average limit is met when using a Quasi-Peak detector, the EUT shall be deemed to meet both limits and measurement
with the average detector is unnecessary. The LISN (measure) is 50 / 50µH. The Peak data are shown on plots in
annex 1. Quasi-Peak and Average measurements are detailed in a table with frequencies and levels measured.
Interconnecting cables and equipment's were moved to position that maximized emission. A summary of the worst case
emissions found in all test configurations and modes is shown on the following page.

Measurements are performed on the phase (L1) and neutral (N) of power line voltage. Graphs are obtained in PEAK
detection. Measures are also performed in Quasi-Peak and Average for any strong signal.

3.4.       TEST EQUIPMENT LIST

           DESCRIPTION                     MANUFACTURER                  MODEL        N° LCIE    Cal_Date     Cal_Due
               Cable + self                           -                      -        A5329578     10/18        10/19
          EMC comb generator                     LCIE SUD EST                -        A3169098       -            -
       Coupling Decoupling Network                  TESEQ                 CDN T8      C2320140     03/18        03/20
         LISN tri-phase ESH2-Z5             RHODE & SCHWARZ             33852.19.53   C2320063     09/18        09/19
         LISN tri-phase ESH2-Z5             RHODE & SCHWARZ             33852.19.53   C2320062     11/18        11/19
                Load 50Ω                              -                      -        A7152052     02/18        02/19
          Receiver 20Hz – 8GHz              ROHDE & SCHWARZ                ESU8       A2642019     12/17        12/19
       Thermo-hygrometer (PM1/2/3)                  KIMO                  HQ 210      B4206022     08/18        08/20
             Transient limiter              RHODE & SCHWARZ              ESH3-Z2      A7122204     02/18        02/19



3.5.       DIVERGENCE, ADDITION OR SUPPRESSION ON THE TEST SPECIFICATION

 None                            Divergence:


3.6.       TEST RESULTS

AC tests Results:
Measurements are performed on the phase (L1) and neutral (N) of the power line.
Results: (PEAK detection)
 Graph identifier          Line                                         Comments
    Emc# 1                Phase                                120VAC/60Hz                                  See below
    Emc# 2                Neutral                              120VAC/60Hz                                  See below
    Emc# 3                Phase                                240VAC/50Hz                                  See below
    Emc# 4                Neutral                              240VAC/50Hz                                  See below




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                                                CONDUCTED EMISSIONS
Graph name:                        Emc#1                        Test configuration:
Limit:                             FCC CFR47 Part15B
                                                                120V60Hz L ESU8
Class:                             A
                                           Frequency range: [150kHz - 30MHz]
Voltage / Frequency:               120VAC / 60Hz                RBW :     10kHz
Line:                              Phase                        VBW :     30kHz
                                                                                          FCC/FCC CFR47 Part15B - Classe:A - Moyenne/
                                                                                          FCC/FCC CFR47 Part15B - Classe:A - QCrête/
                                                                                          Mes.Peak (Phase 1)
                                                                                          Mes.Avg (Phase 1)

    100
 dBµV




      0
          150kHz                                                                                                              30MHz
                                                              Fréquence




                                                   Spurious emissions

                                                   Mes.QPea                           Mes.Avg-
Frequency          Mes.Peak   Mes.QPea   LimQP                   Mes.Avg   LimAvg                                      Correction
                                                   k-LimQP                            LimAvg            Line
  (MHz)             (dBµV)    k (dBµV)   (dBµV)                   (dBµV)   (dBµV)                                         (dB)
                                                     (dB)                               (dB)
 0.162               59.8       55.4      79.0       -23.6          46.1    66.0       -19.9         Phase 1                10.0
 0.430               45.2       41.1      79.0       -37.9          33.8    66.0       -32.2         Phase 1                10.1
 1.112               40.4       36.3      73.0       -36.7          29.6    60.0       -30.4         Phase 1                10.2
 5.400               47.8       42.0      73.0       -31.0          35.5    60.0       -24.5         Phase 1                10.6
 19.708              36.5       33.7      73.0       -39.3          29.3    60.0       -30.7         Phase 1                12.3
 21.664              36.4       34.0      73.0       -39.0          29.7    60.0       -30.3         Phase 1                12.5
 23.128              38.6       36.2      73.0       -36.8          32.1    60.0       -27.9         Phase 1                12.7
 26.488              36.6       34.8      73.0       -38.2          30.6    60.0       -29.4         Phase 1                13.1
 26.548              36.3       34.2      73.0       -38.8          29.9    60.0       -30.1         Phase 1                13.1
 26.608              37.2       35.1      73.0       -37.9          30.9    60.0       -29.1         Phase 1                13.1




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                                                CONDUCTED EMISSIONS
Graph name:                        Emc#2                        Test configuration:
Limit:                             FCC CFR47 Part15B
                                                                120V60Hz N ESU8
Class:                             A
                                           Frequency range: [150kHz - 30MHz]
Voltage / Frequency:               120VAC / 60Hz                RBW :     10kHz
Line:                              Neutral                      VBW :     30kHz
                                                                                          FCC/FCC CFR47 Part15B - Classe:A - Moyenne/
                                                                                          FCC/FCC CFR47 Part15B - Classe:A - QCrête/
                                                                                          Mes.Peak (Phase 1)
                                                                                          Mes.Avg (Phase 1)

    100
 dBµV




      0
          150kHz                                                                                                              30MHz
                                                              Fréquence




                                                   Spurious emissions

                                                   Mes.QPea                           Mes.Avg-
Frequency          Mes.Peak   Mes.QPea   LimQP                   Mes.Avg   LimAvg                                      Correction
                                                   k-LimQP                            LimAvg            Line
  (MHz)             (dBµV)    k (dBµV)   (dBµV)                   (dBµV)   (dBµV)                                         (dB)
                                                     (dB)                               (dB)
 0.162               59.8       55.4      79.0       -23.6          45.9    66.0       -20.1          Neutral               10.0
 1.016               40.5       37.0      73.0       -36.0          30.0    60.0       -30.0          Neutral               10.2
 5.336               47.7       42.1      73.0       -30.9          35.6    60.0       -24.4          Neutral               10.6
 19.708              37.2       34.3      73.0       -38.7          29.6    60.0       -30.4          Neutral               12.3
 23.128              38.7       36.7      73.0       -36.3          32.4    60.0       -27.6          Neutral               12.7
 26.488              36.9       35.1      73.0       -37.9          30.9    60.0       -29.1          Neutral               13.1
 26.608              37.4       35.5      73.0       -37.5          31.0    60.0       -29.0          Neutral               13.1




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                                                CONDUCTED EMISSIONS
Graph name:                        Emc#3                        Test configuration:
Limit:                             FCC CFR47 Part15B
                                                                240V50Hz L ESU8
Class:                             A
                                           Frequency range: [150kHz - 30MHz]
Voltage / Frequency:               240VAC / 50Hz                RBW :     10kHz
Line:                              Phase                        VBW :     30kHz
                                                                                          FCC/FCC CFR47 Part15B - Classe:A - Moyenne/
                                                                                          FCC/FCC CFR47 Part15B - Classe:A - QCrête/
                                                                                          Mes.Peak (Phase 1)
                                                                                          Mes.Avg (Phase 1)

    100
 dBµV




      0
          150kHz                                                                                                              30MHz
                                                              Fréquence




                                                   Spurious emissions

                                                   Mes.QPea                           Mes.Avg-
Frequency          Mes.Peak   Mes.QPea   LimQP                   Mes.Avg   LimAvg                                      Correction
                                                   k-LimQP                            LimAvg            Line
  (MHz)             (dBµV)    k (dBµV)   (dBµV)                   (dBµV)   (dBµV)                                         (dB)
                                                     (dB)                               (dB)
 0.154               60.4       58.7      79.0       -20.3          48.4    66.0       -17.6         Phase 1                10.0
 0.534               36.9       33.6      73.0       -39.4          25.5    60.0       -34.5         Phase 1                10.1
 0.718               40.8       38.7      73.0       -34.3          31.2    60.0       -28.8         Phase 1                10.1
 1.072               42.6       40.4      73.0       -32.6          33.2    60.0       -26.8         Phase 1                10.2
 1.364               41.2       38.4      73.0       -34.6          31.5    60.0       -28.5         Phase 1                10.2
 2.404               40.4       35.8      73.0       -37.2          29.9    60.0       -30.1         Phase 1                10.3
 12.168              46.6       43.4      73.0       -29.6          38.6    60.0       -21.4         Phase 1                11.3




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                                                 CONDUCTED EMISSIONS
Graph name:                         Emc#4                        Test configuration:
Limit:                              FCC CFR47 Part15B
                                                                 240V50Hz N ESU8
Class:                              A
                                            Frequency range: [150kHz - 30MHz]
Voltage / Frequency:                240VAC / 50Hz                RBW :     10kHz
Line:                               Neutral                      VBW :     30kHz
                                                                                           FCC/FCC CFR47 Part15B - Classe:A - Moyenne/
                                                                                           FCC/FCC CFR47 Part15B - Classe:A - QCrête/
                                                                                           Mes.Peak (Phase 1)
                                                                                           Mes.Avg (Phase 1)

    100
 dBµV




       0
           150kHz                                                                                                              30MHz
                                                               Fréquence




                                                    Spurious emissions

                                                    Mes.QPea                           Mes.Avg-
Frequency           Mes.Peak   Mes.QPea   LimQP                   Mes.Avg   LimAvg                                      Correction
                                                    k-LimQP                            LimAvg            Line
  (MHz)              (dBµV)    k (dBµV)   (dBµV)                   (dBµV)   (dBµV)                                         (dB)
                                                      (dB)                               (dB)
 0.154                60.4       58.5      79.0       -20.5          48.7    66.0       -17.3          Neutral               10.0
 0.998                41.3       38.9      73.0       -34.1          31.4    60.0       -28.6          Neutral               10.2
 1.120                42.8       40.4      73.0       -32.6          33.2    60.0       -26.8          Neutral               10.2
 2.424                39.9       35.5      73.0       -37.5          29.7    60.0       -30.3          Neutral               10.3
 3.424                36.4       30.9      73.0       -42.1          22.2    60.0       -37.8          Neutral               10.4
 5.076                40.7       36.3      73.0       -36.7          28.6    60.0       -31.4          Neutral               10.6
 12.020               46.2       43.0      73.0       -30.0          38.3    60.0       -21.7          Neutral               11.3


3.7.        CONCLUSION

The sample of the equipment STM32MP157C-EV1, Sn: 118, tested in the configuration presented in this test report
satisfies to requirements of class A limits of the standard FCC Part15B and ICES-003, for conducted emissions.




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4.     MEASUREMENT OF RADIATED EMISSION (30MHZ-6GHZ)

4.1.   ENVIRONMENTAL CONDITIONS

Date of test                 :   February 25, 2019
Test performed by            :   Majid MOURZAGH
Atmospheric pressure (hPa)   :   1010
Relative humidity (%)        :   32
Ambient temperature (°C)     :   23

4.2.   TEST SETUP

The installation of EUT is identical for pre-characterization measures in a 3 meters semi- anechoic chamber and for
measures on the 10 meters Open site.
The EUT and auxiliaries are set:
 80cm above the ground on the non-conducting table (Table-top equipment)
 10cm above the ground on isolating support (Floor standing equipment)
The EUT is powered by Vnom.




                                                Test setup on OATS




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                                    Test setup in anechoic chamber




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4.3.       TEST METHOD

The product has been tested according to ANSI C63.4, FCC part 15 subpart B.

Pre-characterisation measurement: (30MHz –6GHz)
A pre-scan of all the setup has been performed in a 3 meters semi-anechoic chamber for frequency from 30MHz to
6GHz. Test is performed in horizontal (H) and vertical (V) polarization during the test for maximized the emission
measurement. Continuous linear turntable azimuth search was performed with 360 degrees range. Measurement
performed on all axis of EUT used in normal configuration.
The pre-characterization graphs are obtained in PEAK detection and PEAK/AVERAGE from 1GHz to 6GHz.

Characterization on 10 meters open site from 30MHz to 1GHz:
Radiated Emissions were measured on an open area test site. A description of the facility is on file with the FCC. The
product has been tested at a distance of 10 meters from the antenna and compared to the FCC part 15 subpart B limits.
Measurement bandwidth was 120kHz from 30 MHz to 1GHz. Test is performed in horizontal (H) and vertical (V)
polarization, during the test for maximized the emission measurement. The height antenna is varied from 1m to 4m.
Continuous linear turntable azimuth search was performed with 360 degrees range. Measurement performed on all axis
of EUT used in normal configuration. A summary of the worst case emissions found in all test configurations and modes
is shown. Frequency list has been created with anechoic chamber pre-scan results.

Characterization on 3 meters full anechoic chamber from 1GHz to 6GHz:
The product has been tested at a distance of 3 meters from the antenna and compared to the FCC part 15 subpart B
limits. Measurement bandwidth was 1MHz from 1GHz to 6GHz.
Test is performed in horizontal (H) and vertical (V) polarization. Continuous linear turntable azimuth search was
performed with 360 degrees range. Measurement performed on all axis of EUT used in normal configuration. A
summary of the worst case emissions found in all test configurations and modes is shown.The height antenna is
 On mast, varied from 1m to 4m
 Fixed and centered on the EUT (EUT smaller than the beamwidth of the measurement antenna)
Frequency list has been created with anechoic chamber pre-scan results.

4.4.       TEST EQUIPMENT LIST

            DESCRIPTION                MANUFACTURER            MODEL          N° LCIE       Cal_Date       Cal_Due
        Amplifier 20MHz – 6 GHz             LCIE                   -          A7085025        11/18          11/19
                  Cable                       -                  6GHz         A5329191        06/18          06/19
             Emission Cable              MICRO-COAX             18GHz         A5329657        06/18          06/19
             Emission Cable              MICRO-COAX             18GHz         A5329658        03/18          03/19
       Semi-Anechoic chamber #1            SIEPEL                  -          D3044016        09/18          09/19
  Radiated emission comb generator         BARDET                  -          A3169050          -              -
          Receiver 20Hz – 8GHz         ROHDE & SCHWARZ           ESU8         A2642019        12/17          12/19
            Spectrum analyzer          ROHDE & SCHWARZ          FSV 30        A4060051        03/18          03/19
                BAT EMC                     NEXIO              v3.17.0.10     L1000115          -              -
         Thermo-hygrometer (C1)            OREGON              WMR 80         B4206013        06/18          06/20
       Turntable chamber (Cage#1)       MATURO Gmbh            TT 2.0 SI      F2000406          -              -
         Antenna mast (Cage#1)          MATURO Gmbh             AM 4.0        F2000407          -              -
       Turntable controller (Cage#1)    MATURO Gmbh           Control Unit    F2000408          -              -
             Table C1/OATS              MATURO Gmbh                -          F2000437          -              -




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           DESCRIPTION                   MANUFACTURER                  MODEL       N° LCIE    Cal_Date   Cal_Due
             Antenna Bi-log                      CHASE                 CBL6111A    C2040051     01/18      02/19
             Emission Cable                    SUCOFLEX                  6GHz      A5329061     03/18      03/19
              Cable (OATS)                          -                    1GHz      A5329623     03/18      03/19
                 OATS                               -                     -        F2000409     02/19      02/20
        Facteur OATS 30M-1GHz                     LCIE                    V3       L2000035       -          -
       Thermo-hygrometer (PM1/2/3)                KIMO                  HQ 210     B4206022     08/18      08/20
  Turntable / Mast controller (OATS)           ETS Lindgren           Model 2066   F2000372       -          -
          Antenna mast (OATS)                  ETS Lindgren             2071-2     F2000392       -          -
            Turntable (OATS)                   ETS Lindgren           Model 2187   F2000403       -          -



4.5.       DIVERGENCE, ADDITION OR SUPPRESSION ON THE TEST SPECIFICATION

 None                          Divergence:




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4.6.         TEST RESULTS

Pre-characterisation measurement (30MHz-1GHz): pre-scan measurement at 3m (PEAK detection)

See graphs:
    Graph identifier          Polarization                EUT position                        Comments
      Emr# 1                Vertical/ Horizontal            Axis XY                   240VAC/50Hz      See below

                                              RADIATED EMISSIONS
Graph name:                  Emr#1                          Test configuration:
Limit:                       FCC CFR47 Part15B
                                                            (H+V) -Configuration n°1 FCC <1GHz
Class:                       A
                                        Frequency range: [30MHz - 1GHz]
Antenna polarization:        Horizontal & Vertical          RBW :     100kHz
Azimuth:                     0° - 360°                      VBW :     300kHz
                                                                                           FCC/FCC CFR47 Part15B - Classe:A - QCrête/3.0m/
                                                                                           Niveau (Suspect Manuel) (Verticale)
                                                                                           Niveau (Suspect Manuel) (Horizontale)
                                                                                           Mes.Peak (Verticale)
                                                                                           Mes.Peak (Horizontale)

       100
 dBµV/m




        0
             30MHz                                                                                                                  1GHz
                                                            Fréquence




                                                   Spurious emissions


       Frequency (MHz)         Peak Level (dBµV/m)                      Hauteur (m)                         Polarization
            55.993                    44.1                                  1.6                               Vertical
           111.991                    41.7                                  1.6                               Vertical
           124.996                    40.3                                  1.6                               Vertical
           168.006                    33.8                                  1.6                               Vertical
           375.000                    45.6                                  1.6                               Vertical
            30.068                    41.6                                  1.6                              Horizontal
            30.425                    40.9                                  1.6                              Horizontal
            55.993                    41.7                                  1.6                              Horizontal



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     Frequency (MHz)           Peak Level (dBµV/m)                Hauteur (m)                Polarization
         111.991                      38.9                            1.6                     Horizontal
         124.996                      36.2                            1.6                     Horizontal
         168.006                      38.0                            1.6                     Horizontal
         375.000                      42.9                            1.6                     Horizontal
         480.000                      42.0                            1.6                     Horizontal
         624.960                      44.4                            1.6                     Horizontal


QUALIFICATION (30MHz-1GHz): 10 meters measurement on the Open Area Test Site.
Frequency list has been created with semi-anechoic chamber pre-scan results.
Measurements are performed using a QUASI-PEAK detection.

   Test    Meter  Detector Polarity Azimuth Antenna Gain/Loss Transducer   Level    Limit  Margin
Frequency Reading                            Height  Factor     Factor
  (MHz)   dB(µV) (Pk/QP/Av) (V/H) (Degrees)   (cm)    (dB)       (dB)    (dBµV/m) (dBµV/m) (dB)
 30.100     24.0      QP         V          0      100         -          23.0       47.0      49.6    -2.6
 30.400     23.5      QP         V         90      100         -          22.7       46.2      49.6    -3.4
 56.000     36.5      QP         V         60      130         -           8.4       44.9      49.6    -4.7
 112.000    28.5      QP         H          0      235         -          13.7       42.2      54.0   -11.8
 125.000    28.0      QP         V          0      130         -          14.5       42.5      54.0   -11.5
 168.000    30.6      QP         V          0      100         -          12.5       43.1      54.0   -10.9
 375.000    31.5      QP         V        180      110         -          19.1       50.6      56.9    -6.3
 480.000    26.5      QP         V          0      100         -          22.0       48.5      56.9    -8.4
 625.000    28.9      QP         H        125      240         -          25.0       53.9      56.9    -3.0
Note: Measure have been done at 10m distance and corrected according to requirements of 15.209.e)
(M@3m = M@10m+10.5dB)




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N° 159450-732210-A (File#1014399)                  Version : 02                                       Page 22/25


Pre-characterisation measurement (1GHz-6GHz): pre-scan measurement at 3m (PEAK and AVERAGE detection, graph
examples)

See graphs:
    Graph identifier             Polarization                EUT position                    Comments
      Emr# 2                   Vertical/ Horizontal            Axis XY               240VAC/50Hz      See below

                                                RADIATED EMISSIONS
Graph name:                    Emr#2                          Test configuration:
Limit:                         FCC CFR47 Part15B
                                                              (H+V) - Configuration 1 [1-6]GHz -FCC
Class:                         A
                                           Frequency range: [1GHz - 6GHz]
Antenna polarization:          Horizontal & Vertical          RBW :     1MHz
Azimuth:                       0° - 360°                      VBW :     3MHz
                                                                                         FCC/FCC CFR47 Part15B - Classe:A - Moyenne/3.0m/
                                                                                         FCC/FCC CFR47 Part15B - Classe:A - Crête/3.0m/
                                                                                         Mes.Peak (Horizontale)
                                                                                         Mes.Peak (Verticale)
                                                                                         Mes.Avg (Horizontale)
                                                                                         Mes.Avg (Verticale)

       100
 dBµV/m




        0
             1GHz                                                                                                                   6GHz
                                                               Fréquence




                                                      Spurious emissions


  Frequency           Peak              LimM              Peak-LimM                                                   Correction
                                                                           Hauteur (m)   Polarization
    (MHz)           (dBµV/m)          (dBµV/m)               (dB)                                                        (dB)
   1125.000           42.1               60.0                -17.9             1.3         Horizontal                     1.6
   3509.500           46.6               60.0                -13.4             1.3         Horizontal                    14.1
   5764.000           55.1               60.0                 -4.9             1.3         Horizontal                    20.6
   3539.000           47.0               60.0                -13.0             1.3          Vertical                     13.9
   5618.500           55.3               60.0                 -4.7             1.3          Vertical                     20.0




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QUALIFICATION (1GHz-6GHz): 3 meters measurement in full anechoic chamber. The frequency list is created from the
results obtained during the pre-characterization in anechoic chamber.
Measurements are performed using a PEAK and AVERAGE detection.
   Test    Meter      Detector      Polarity    Azimuth   Antenna Gain/Loss     Transducer    Level      Limit     Margin
Frequency Reading                                          Height  Factor         Factor
  (MHz)   dB(µV)     (Pk/QP/Av)      (V/H)      (Degrees)   (cm)    (dB)           (dB)      (dBµV/m)   (dBµV/m)    (dB)
                                               Not performed : Margin > -15dB

4.7.   CONCLUSION

The sample of the equipment STM32MP157C-EV1, Sn: 118, tested in the configuration presented in this test report
satisfies to requirements of class A limits of the standard FCC Part15B and ICES-003, for radiated emissions.




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5.        UNCERTAINTIES CHART

                                                                                                                    Incertitude
                                                                                                                                          Incertitude
                                                                                                                    élargie
                                                                                                                                          limite
                                                                                                                    laboratoire /
                                                                                                                                          du CISPR /
Type de mesure / Kind of measurement                                                                                Wide
                                                                                                                                          CISPR
                                                                                                                    uncertainty
                                                                                                                                          uncertainty
                                                                                                                    laboratory
                                                                                                                                          limit y
                                                                                                                    (k=2) x
Mesure des perturbations conduites en tension sur le réseau d’énergie (monophasé /triphasé) 10kHz-150kHz
                                                                                                                          3.27dB              3.8dB
Measurement of conducted disturbances in voltage on the power port ( single & three phases)10kHz-150kHz
Mesure des perturbations conduites en tension sur le réseau d’énergie (monophasé /triphasé) 150kHz-30MHz
                                                                                                                          3.29dB              3.4dB
Measurement of conducted disturbances in voltage on the power port ( single & three phases)150kHz-30MHz
Mesure des perturbations conduites en tension sur le réseau de télécommunication
                                                                                                                          3.26dB               5dB
Measurement of conducted disturbances in voltage on the telecommunication port.
Mesure des perturbations discontinues conduites en tension
                                                                                                                          3.33dB              3.4dB
Measurement of discontinuous conducted disturbances in voltage
Mesure des perturbations conduites en courant
                                                                                                                          2.67dB              2.9dB
Measurement of conducted disturbances in current
Mesure du champ électrique rayonné en cage de Faraday semi-anéchoïque
de 30MHz à 1GHz
                                                                                                                          5.06dB              5.3dB
Measurement of radiated electric field in half-anechoic Faraday room
From 30MHz to 1GHz
Mesure du champ électrique rayonné en cage de Faraday semi-anéchoïque
de 1GHz à 6GHz
                                                                                                                          5.18dB              5.2dB
Measurement of radiated electric field in half-anechoic Faraday room
From 1GHz à 6GHz
Mesure du champ électrique rayonné en cage de Faraday semi-anéchoïque
de 6GHz à 18GHz
                                                                                                                          5.21dB              5.5dB
Measurement of radiated electric field in half-anechoic Faraday room
From 6GHz to 18GHz
Mesure du champ électrique rayonné sur le site en espace libre de Moirans
30MHz – 1GHz.
                                                                                                                           5.2dB              6.3dB
Measurement of radiated electric field on the Moirans open area test site
30MHz – 1GHz.
Mesure du champ électrique rayonné IN SITU de 30 à 1000 MHz                                                             A l’étude /
IN SITU measurement of radiated electric field from 30 to 1000MHz                                                         Under               5.2dB
                                                                                                                       consideration
 Mesure de la puissance perturbatrice
                                                                                                                           3.32dB              4.5dB
 Measurement of disturbance power
 Mesure des harmoniques de courant
                                                                                                                           11.11%                 /
 Measurement of current harmonics
 Mesure du flicker
                                                                                                                            9.26%                 /
 Flicker measurement
Les valeurs d’incertitudes calculées du laboratoire étant inférieures aux valeurs d’incertitudes limites établies par le CISPR, la conformité de
l’échantillon est établie directement par les niveaux limites applicables. Ce tableau regroupe l'ensemble des incertitudes maximales pour les essais
réalisables dans le laboratoire, qu’ils aient été ou non réalisés dans le cadre du présent rapport / The uncertainty values calculated by the laboratory
are lower than limit uncertainty values defined by the CISPR. The conformity of the sample is directly established by the applicable limits values. This
table includes all uncertainties maximum feasible for testing in the laboratory, whether or not made in this report
Note - L'incertitude de mesure instrumentale est déterminée selon la CISPR 16-4-2. / The instrumentation measurement uncertainty is determined
according to CISPR16-4-2




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Document Created: 2019-10-03 15:23:55
Document Modified: 2019-10-03 15:23:55

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