Test Report (Radiated)

FCC ID: LDKSKMAA2017

Test Report

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FCCID_4432617

                       FCC PART 15, SUBPART C
                ISEDC RSS-247, ISSUE 2, FEBRUARY 2017
                                                  TEST REPORT
                                                                For
                                              Cisco Systems Inc.
                                                   125 West Tasman Drive,
                                                   San Jose, CA 95134 USA


                                          FCC ID: LDKSKMAA2017
                                           IC: 2461N-SKMAA2017

                            Report Type:                            Product Type:
                             Original Report                          4x4 Dual Band Access Point
                       Prepared By           Alexandrae Duran
                                             Test Technician

                     Report Number           R1902192-247

                       Report Date           2019-04-12

                                             Frank Wang
                       Reviewed By           RF Lead

                                           Bay Area Compliance Laboratories Corp.
                                                     1274 Anvilwood Ave
                                                  Sunnyvale, CA 94089, USA
                                           Tel: (408) 732-9162, Fax: (408) 732 9164




Note: This test report is prepared for the customer shown above and for the device described herein. It may not be duplicated or used in
part without prior written consent from Bay Area Compliance Laboratories Corp. This report must not be used by the customer to claim
product certification, approval, or endorsement by A2LA*, NIST, or any agency of the Federal Government.
* This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “*”    (Rev.2)


Cisco Systems Inc.                                                                               FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017



                                                             TABLE OF CONTENTS
  1 General Description ..................................................................................................................................................... 4
  1.1    Product Description for Equipment Under Test (EUT) ...................................................................................... 4
  1.2    Mechanical Description of EUT ......................................................................................................................... 4
  1.3    Objective ............................................................................................................................................................. 4
  1.4    Related Submittal(s)/Grant(s) ............................................................................................................................. 4
  1.5    Test Methodology ............................................................................................................................................... 4
  1.6    Measurement Uncertainty ................................................................................................................................... 5
  1.7    Test Facility Registrations .................................................................................................................................. 5
  1.8    Test Facility Accreditations ................................................................................................................................ 5
  2 System Test Configuration.......................................................................................................................................... 8
  2.1    Justification ......................................................................................................................................................... 8
  2.2    EUT Exercise Software....................................................................................................................................... 8
  2.3    Duty Cycle Correction Factor ............................................................................................................................. 9
  2.4    Equipment Modifications.................................................................................................................................. 11
  2.5    Local Support Equipment ................................................................................................................................. 11
  2.6    Support Equipment ........................................................................................................................................... 11
  2.7    Interface Ports and Cabling ............................................................................................................................... 12
  3 Summary of Test Results ............................................................................................................................................ 13
  4 FCC §15.209, §15.247(d) & ISEDC RSS-247 §5.5, RSS-Gen §8.9, §8.10 - Spurious Radiated Emissions ........... 14
  4.1    Applicable Standards ........................................................................................................................................ 14
  4.2    Test Setup ......................................................................................................................................................... 15
  4.3    Test Procedure .................................................................................................................................................. 15
  4.4    Corrected Amplitude and Margin Calculation .................................................................................................. 16
  4.5    Test Equipment List and Details ....................................................................................................................... 16
  4.6    Test Environmental Conditions ........................................................................................................................ 17
  4.7    Summary of Test Results .................................................................................................................................. 17
  4.8    Spurious Emissions Test Results ...................................................................................................................... 18
  1) 30 MHz – 1 GHz Worst Case, Measured at 3 meters............................................................................................ 18
  2) 1 GHz-18 GHz, measured at 3 meters ................................................................................................................... 19
  3) 1 GHz - 18 GHz for radio co-location*, measured at 1 meter ............................................................................... 23
  4) 18 GHz - 26.5 GHz for radio co-location*, measured at 1 meter .......................................................................... 23
  5) 26.5 GHz - 40 GHz for radio co-location*, measured at 1 meter .......................................................................... 24
  5 Appendix A- EUT Test Setup Photographs............................................................................................................... 25
  6 Appendix B- EUT External Photographs .................................................................................................................. 26
  7 Appendix C- EUT Internal Photographs................................................................................................................... 27
  8 Appendix D (Normative) - ISO/IEC 17025 Certificate and Scope of Accreditation .............................................. 28




Report Number: R1902192-247                                                 Page 2 of 28                           FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                           FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

                              DOCUMENT REVISION HISTORY

      Revision Number         Report Number              Description of Revision       Date of Revision

              0                R1902192-247                   Original Report             2019-04-12




Report Number: R1902192-247                   Page 3 of 28              FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                            FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

1     General Description

1.1    Product Description for Equipment Under Test (EUT)
This test and measurement report was prepared on behalf of Cisco Systems Inc., and their product model:
AIR-AP1840I-B-K9 (US) and AIR-AP1840I-A-K9 (Canada) as referred to as EUT in this report. The product is a
4x4 Dual Band Access Point.


1.2    Mechanical Description of EUT

The product measures approximately 170 mm (L) x 170 mm (W) x 30 mm (H) and weighs approximately 100 g.


1.3    Objective

This report is prepared on behalf of Cisco Systems Inc., in accordance with Part 2, Subpart J, and Part 15,
Subparts B and C of the Federal Communication Commission’s rules and ISEDC RSS-247 Issue 2 on February
2017.
The objective is to determine compliance with FCC Part 15.247 and ISEDC RSS-247 rules for Antenna
Requirements and Radiated Spurious Emissions.


1.4    Related Submittal(s)/Grant(s)
R1902192-407


1.5    Test Methodology
All measurements contained in this report were conducted in accordance with ANSI C63.10-2013, American
National Standard of Procedures for Compliance Testing of Unlicensed Wireless Devices and FCC KDB
558074 D01 DTS Meas Guidance v04: Guidance for Performing Compliance Measurements on Digital
Transmission Systems (DTS) Operating Under §15.247.




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Cisco Systems Inc.                                               FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

1.6   Measurement Uncertainty

All measurements involve certain levels of uncertainties, especially in the field of EMC. The factors
contributing to uncertainties are spectrum analyzer, cable loss, antenna factor calibration, antenna directivity,
antenna factor variation with height, antenna phase center variation, antenna factor frequency interpolation,
measurement distance variation, site imperfections, mismatch (average), and system repeatability.

                                      Parameter                  Measurement uncertainty
                            Occupied Channel Bandwidth                    ±5 %
                             RF output power, conducted                 ±0.57 dB
                          Power Spectral Density, conducted             ±1.48dB
                           Unwanted Emissions, conducted                ±1.57dB
                               All emissions, radiated                  ±4.0 dB
                          AC power line Conducted Emission              ±2.0 dB
                                    Temperature                          ±2 º C
                                      Humidity                            ±5 %
                           DC and low frequency voltages                 ±1.0 %
                                        Time                              ±2 %
                                     Duty Cycle                           ±3 %



1.7   Test Facility Registrations
BACLs test facilities that are used to perform Radiated and Conducted Emissions tests are currently recognized
by the Federal Communications Commission as Accredited with NIST Designation Number US1129.
BACL’s test facilities that are used to perform Radiated and Conducted Emissions tests are currently registered
with Industry Canada under Registration Numbers: 3062A-1, 3062A-2, and 3062A-3.
BACL is a Chinese Taipei Bureau of Standards Metrology and Inspection (BSMI) validated Conformity
Assessment Body (CAB), under Appendix B, Phase I Procedures of the APEC Mutual Recognition
Arrangement (MRA). BACL’s BSMI Lab Code Number is: SL2-IN-E-1002R

BACL’s test facilities that are used to perform AC Line Conducted Emissions, Telecommunications Line
Conducted Emissions, Radiated Emissions from 30 MHz to 1 GHz, and Radiated Emissions from 1 GHz to 6
GHz are currently recognized as Accredited in accordance with the Voluntary Control Council for Interference
[VCCI] Article 15 procedures under Registration Number A-0027.


1.8   Test Facility Accreditations

Bay Area Compliance Laboratories Corp. (BACL) is:
A- An independent, 3rd-Party, Commercial Test Laboratory accredited to ISO/IEC 17025:2005 by A2LA (Test
Laboratory Accreditation Certificate Number 3279.02), in the fields of: Electromagnetic Compatibility and
Telecommunications. Unless noted by an Asterisk (*) in the Compliance Matrix (See Section 3 of this Test
Report), BACL’s ISO/IEC 17025:2005 Scope of Accreditation includes all of the Test Method Standards and/or
the Product Family Standards detailed in this Test Report..
BACL’s ISO/IEC 17025:2005 Scope of Accreditation includes a comprehensive suite of EMC Emissions, EMC
Immunity, Radio, RF Exposure, Safety and wireline Telecommunications test methods applicable to a wide
range of product categories. These product categories include Central Office Telecommunications Equipment


Report Number: R1902192-247                       Page 5 of 28              FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                            FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

[including NEBS - Network Equipment Building Systems], Unlicensed and Licensed Wireless and RF devices,
Information Technology Equipment (ITE); Telecommunications Terminal Equipment (TTE); Medical Electrical
Equipment; Industrial, Scientific and Medical Test Equipment; Professional Audio and Video Equipment;
Industrial and Scientific Instruments and Laboratory Apparatus; Cable Distribution Systems, and Energy
Efficient Lighting.
B- A Product Certification Body accredited to ISO/IEC 17065:2012 by A2LA (Product Certification Body
Accreditation Certificate Number 3279.03) to certify
- For the USA (Federal Communications Commission):
         1-      All Unlicensed radio frequency devices within FCC Scopes A1, A2, A3, and A4;
         2-      All Licensed radio frequency devices within FCC Scopes B1, B2, B3, and B4;
         3-      All Telephone Terminal Equipment within FCC Scope C.
- For the Canada (Industry Canada):
         1      All Scope 1-Licence-Exempt Radio Frequency Devices;
         2      All Scope 2-Licensed Personal Mobile Radio Services;
         3      All Scope 3-Licensed General Mobile & Fixed Radio Services;
         4      All Scope 4-Licensed Maritime & Aviation Radio Services;
         5      All Scope 5-Licensed Fixed Microwave Radio Services
         6      All Broadcasting Technical Standards (BETS) in the Category I Equipment Standards List.
- For Singapore (Info-Communications Development Authority (IDA)):
         1      All Line Terminal Equipment: All Technical Specifications for Line Terminal Equipment –
                Table 1 of IDA MRA Recognition Scheme: 2011, Annex 2
         2.     All Radio-Communication Equipment: All Technical Specifications for Radio-Communication
                Equipment – Table 2 of IDA MRA Recognition Scheme: 2011, Annex 2
- For the Hong Kong Special Administrative Region:
         1      All Radio Equipment, per KHCA 10XX-series Specifications;
         2      All GMDSS Marine Radio Equipment, per HKCA 12XX-series Specifications;
         3      All Fixed Network Equipment, per HKCA 20XX-series Specifications.
- For Japan:
         1      MIC Telecommunication Business Law (Terminal Equipment):
               - All Scope A1 - Terminal Equipment for the Purpose of Calls;
               - All Scope A2 - Other Terminal Equipment
         2      Radio Law (Radio Equipment):
               - All Scope B1 - Specified Radio Equipment specified in Article 38-2-2, paragraph 1, item 1 of
                       the Radio Law
               - All Scope B2 - Specified Radio Equipment specified in Article 38-2-2, paragraph 1, item 2 of
                       the Radio Law
               - All Scope B3 - Specified Radio Equipment specified in Article 38-2-2, paragraph 1, item 3 of
                       the Radio Law

C- A Product Certification Body accredited to ISO/IEC 17065:2012 by A2LA (Product Certification Body
Accreditation Certificate Number 3279.01) to certify Products to USA’s Environmental Protection Agency
(EPA) ENERGY STAR Product Specifications for:
       1 Electronics and Office Equipment:
           - for Telephony (ver. 3.0)
           - for Audio/Video (ver. 3.0)
           - for Battery Charging Systems (ver. 1.1)
           - for Set-top Boxes & Cable Boxes (ver. 4.1)
           - for Televisions (ver. 6.1)
           - for Computers (ver. 6.0)
           - for Displays (ver. 6.0)
           - for Imaging Equipment (ver. 2.0)

Report Number: R1902192-247                    Page 6 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                          FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

           - for Computer Servers (ver. 2.0)
        2 Commercial Food Service Equipment
           - for Commercial Dishwashers (ver. 2.0)
           - for Commercial Ice Machines (ver. 2.0)
           - for Commercial Ovens (ver. 2.1)
           - for Commercial Refrigerators and Freezers
        3 Lighting Products
           - For Decorative Light Strings (ver. 1.5)
           - For Luminaires (including sub-components) and Lamps (ver. 1.2)
           - For Compact Fluorescent Lamps (CFLs) (ver. 4.3)
           - For Integral LED Lamps (ver. 1.4)
        4 Heating, Ventilation, and AC Products
          - for Residential Ceiling Fans (ver. 3.0)
          - for Residential Ventilating Fans (ver. 3.2)
        5 Other
         - For Water Coolers (ver. 3.0)

D- A NIST Designated Phase-I and Phase-II Conformity Assessment Body (CAB) for the following
economies and regulatory authorities under the terms of the stated MRAs/Treaties:
   - Australia: ACMA (Australian Communication and Media Authority) – APEC Tel MRA -Phase I;
   - Canada: (Innovation, Science and Economic development Canada - ISEDC) Foreign Certification Body –
      FCB – APEC Tel MRA -Phase I & Phase II;
   - Chinese Taipei (Republic of China – Taiwan):
           o BSMI (Bureau of Standards, Metrology and Inspection) APEC Tel MRA -Phase I;
           o NCC (National Communications Commission) APEC Tel MRA -Phase I;
   - European Union:
           o EMC Directive 2014/30/EU US-EU EMC & Telecom MRA CAB (NB)
           o Radio Equipment (RE) Directive 2014/53/EU US-EU EMC & Telecom MRA CAB (NB)
           o Low Voltage Directive (LVD) 2014/35/EU
   - Hong Kong Special Administrative Region: (Office of the Telecommunications Authority – OFTA)
        APEC Tel MRA -Phase I & Phase II
   - Israel – US-Israel MRA Phase I
   - Republic of Korea (Ministry of Communications - Radio Research Laboratory) APEC Tel MRA -Phase I
   - Singapore: (Infocomm Media Development Authority - IMDA) APEC Tel MRA -Phase I & Phase II;
   - Japan: VCCI - Voluntary Control Council for Interference US-Japan Telecom Treaty VCCI Side Letter-
   - USA:
           o ENERGY STAR Recognized Test Laboratory – US EPA
           o Telecommunications Certification Body (TCB) – US FCC;
           o Nationally Recognized Test Laboratory (NRTL) – US OSHA
   - Vietnam: APEC Tel MRA -Phase I;




Report Number: R1902192-247                  Page 7 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                               FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

2     System Test Configuration

2.1    Justification

The EUT was configured for testing according to ANSI C63.10-2013 and FCC KDB 558074 D01 DTS Meas
Guidance v04.
The EUT was tested in a testing mode to represent worst-case results during the final qualification test.
The worst-case data rates are determined to be as follows for each mode based upon investigation by measuring
the average power, peak power and PPSD across all data rates bandwidths, and modulations.


2.2    EUT Exercise Software

The test firmware used was Tera Term and test commands, provided by Cisco Systems Inc., the software is
compliant with the standard requirements being tested against.



                                                 Frequency
                          Modulation                                     Power Setting
                                                   (MHz)
                                                    2412                       17
                            802.11b                 2437                       17
                                                    2462                       17
                                                    2412                       17
                            802.11g                 2437                       17
                                                    2462                       17
                                                    2412                       17
                            802.11n                 2437                       17
                                                    2462                       17
                                                    2402                        5
                              BLE                   2426                        5
                                                    2480                        5



Data Rates Tested:
802.11b mode: 1Mbps
802.11g mode: 6Mbps
802.11n mode: m0




Report Number: R1902192-247                       Page 8 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                                 FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

2.3   Duty Cycle Correction Factor

According to KDB 558074 D01 DTS Meas Guidance v04 section 6.0:
Preferably, all measurements of maximum conducted (average) output power will be performed with the EUT
transmitting continuously (i.e., with a duty cycle of greater than or equal to 98%). When continuous operation
cannot be realized, then the use of sweep triggering/signal gating techniques can be utilized to ensure that
measurements are made only during transmissions at the maximum power control level. Such sweep
triggering/signal gating techniques will require knowledge of the minimum transmission duration (T) over
which the transmitter is on and is transmitting at its maximum power control level for the tested mode of
operation. Sweep triggering/signal gating techniques can then be used if the measurement/sweep time of the
analyzer can be set such that it does not exceed T at any time that data is being acquired (i.e., no transmitter off-
time is to be considered).

                                    Total On                                     Duty Cycle Correction
                                                 Period        Duty Cycle
           Radio Mode                Time                                               Factor
                                                  (ms)            (%)
                                      (ms)                                               (dB)
              802.11b                12.4058     12.4928           99.30                 0.031
              802.11g                 2.0580     2.1522            95.62                 0.194
            802.11n20                20.2464     20.9928           96.44                 0.157
               BLE                        -         -               100                     0

Duty Cycle = On Time (ms)/ Period (ms)
Duty Cycle Correction Factor (dB) = 10*log(1/Duty Cycle)
Please refer to the following plots.

                                                    802.11b mode




                     Date:11.APR.2019 22:35:22


                                                    802.11g mode

Report Number: R1902192-247                         Page 9 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                               FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017




                     Date:11.APR.2019 22:40:03




                                                 802.11n20 Mode




                     Date:11.APR.2019 22:46:23




Report Number: R1902192-247                      Page 10 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                                        FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

                                                                BLE




                      Date:11.APR.2019 22:59:34




2.4   Equipment Modifications

No equipment modifications are made to the EUT


2.5   Local Support Equipment

             Manufacturer                         Description                Model                Serial Number

                     Dell                           Laptop                Latitude E6410            3CKRAQ1



2.6   Support Equipment

            Manufacturer                                Description                              Model

                 Cisco                                  Power supply                       AIR-PWRINJ6 V01




Report Number: R1902192-247                               Page 11 of 28              FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                        FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

2.7   Interface Ports and Cabling

            Cable Description       Length                    To                     From

              Ethernet cable         2m                       PoE                     EUT

        Ethernet-serial-USB cable    2m                      EUT                     Laptop




Report Number: R1902192-247               Page 12 of 28             FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                                FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

3    Summary of Test Results

Results reported relate only to the product tested.


           FCC and ISEDC Rules                         Description of Test                     Results

           FCC §2.1053, §15.35(b),
        §15.205, §15.209, §15.247 (d)
            ISEDC RSS-247 §5.5                    Radiated Spurious Emissions                Compliant
          ISEDC RSS-Gen §8.9 and
                   §8.10




Report Number: R1902192-247                       Page 13 of 28              FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                               FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

4     FCC §15.209, §15.247(d) & ISEDC RSS-247 §5.5, RSS-Gen §8.9, §8.10 -
      Spurious Radiated Emissions

4.1    Applicable Standards

As per FCC §15.35(d): Unless otherwise specified, on any frequency or frequencies above 1000 MHz, the
radiated emission limits are based on the use of measurement instrumentation employing an average detector
function. Unless otherwise specified, measurements above 1000 MHz shall be performed using a minimum
resolution bandwidth of 1 MHz.

As Per FCC §15.205(a) except as show in paragraph (d) of this section, only spurious emissions are permitted in
any of the frequency bands listed below:

               MHz                       MHz                          MHz                         GHz

            0.090 – 0.110             16.42 – 16.423
                                                                     960 – 1240               4. 5 – 5. 15
            0.495 – 0.505          16.69475 – 16.69525
                                                                    1300 – 1427               5. 35 – 5. 46
           2.1735 – 2.1905             25.5 – 25.67
                                                                   1435 – 1626.5              7.25 – 7.75
            4.125 – 4.128              37.5 – 38.25
                                                                  1645.5 – 1646.5             8.025 – 8.5
          4.17725 – 4.17775              73 – 74.6
                                                                    1660 – 1710                9.0 – 9.2
          4.20725 – 4.20775             74.8 – 75.2
                                                                  1718.8 – 1722.2              9.3 – 9.5
            6.215 – 6.218              108 – 121.94
                                                                    2200 – 2300               10.6 – 12.7
          6.26775 – 6.26825              123 – 138
                                                                    2310 – 2390               13.25 – 13.4
          6.31175 – 6.31225          149.9 – 150.05
                                                                   2483.5 – 2500              14.47 – 14.5
            8.291 – 8.294         156.52475 – 156.52525
                                                                    2690 – 2900               15.35 – 16.2
            8.362 – 8.366             156.7 – 156.9
                                                                    3260 – 3267               17.7 – 21.4
          8.37625 – 8.38675         162.0125 –167.17
                                                                   3.332 – 3.339             22.01 – 23.12
          8.41425 – 8.41475           167.72 – 173.2
                                                                   3 3458 – 3 358             23.6 – 24.0
            12.29 – 12.293               240 – 285
                                                                   3.600 – 4.400              31.2 – 31.8
         12.51975 – 12.52025           322 – 335.4
                                                                                              36.43 – 36.5
         12.57675 – 12.57725           399.9 – 410
                                                                                              Above 38.6
            13.36 – 13.41               608 – 614


As per FCC §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)                       (micro volts/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

** Except as provided in paragraph (g), fundamental emissions from intentional radiators operating under this
Section shall not be located in the frequency bands 54-72 MHz, 76-88 MHz, 174-216 MHz or 470-806 MHz.
However, operation within these frequency bands is permitted under other sections of this Part, e.g., Sections
15.231 and 15.241.

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Cisco Systems Inc.                                               FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

As per FCC §15.247 (d), in any 100 kHz bandwidth outside the frequency band in which the spread spectrum or
digitally modulated intentional radiator is operating, the radio frequency power that is produced by the
intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the
highest level of the desired power, based on either an RF conducted or a radiated measurement, provided the
transmitter demonstrates compliance with the peak conducted power limits. If the transmitter complies with the
conducted power limits based on the use of RMS averaging over a time interval, as permitted under paragraph
(b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. Attenuation
below the general limits specified in §15.209(a) is not required. In addition, radiated emissions which fall in the
restricted bands, as defined in §15.205(a), must also comply with the radiated emission limits specified in
§15.209(a) (see §15.205(c).


4.2   Test Setup

The radiated emissions tests were performed in the 5-meter Chamber, using the setup in accordance with ANSI
C63.10-2013. The specification used was the FCC 15 Subpart C limits.

The spacing between the peripherals was 10 centimeters.

External I/O cables were draped along the edge of the test table and bundle when necessary.


4.3   Test Procedure

The EUT host, and all support equipment power cords were connected to the AC floor outlet.

Maximizing procedure was performed on the highest emissions to ensure that the EUT complied with all
installation combinations.

For radiated testing the EUT was set 3 meter away from the testing antenna, which was varied from 1-4 meter,
and the EUT was placed on a turntable, which was 0.8 meter and 1.5 meter above the ground plane for below
and above 1000 MHz measurements, the table shall be rotated for 360 degrees to find out the highest emission.
The receiving antenna’s polarity should be changed between horizontal and vertical.

The spectrum analyzer or receiver was set as:

Below 1000 MHz:
             RBW = 100 kHz / VBW = 300 kHz / Sweep = Auto

Above 1000 MHz:
              (1) Peak: RBW = 1MHz / VBW = 3MHz / Sweep = 100 ms
              (2) Average: RBW = 1MHz / VBW = 3MHz / Sweep = Auto




Report Number: R1902192-247                      Page 15 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                                FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

4.4     Corrected Amplitude and Margin Calculation

The Corrected Amplitude (CA) is calculated by adding the Antenna Factor (AF), the Cable Loss (CL), the
Attenuator Factor (Atten) and subtracting the Amplifier Gain (Ga) to indicated Amplitude (Ai) reading. The
basic equation is as follows:

          CA = Ai + AF + CL + Atten – Ga

For example, a corrected amplitude of 40.3 dBuV/m = Indicated Reading (32.5 dBuV) + Antenna Factor
(+23.5dB) + Cable Loss (3.7 dB) + Attenuator (10 dB) - Amplifier Gain (29.4 dB)

The “Margin” column of the following data tables indicates the degree of compliance within the applicable
limit. For example, a margin of -7 dB means the emission is 7 dB below the maximum limit. The equation for
margin calculation is as follows:

          Margin = Corrected Amplitude - Limit


4.5     Test Equipment List and Details

                                                                                      Calibration      Calibration
        Manufacturer           Description           Model No.          Serial No.
                                                                                         Date           Interval
                                                       ESCI
      Rohde and Schwarz     Receiver, EMI Test                           100338       2018-07-05         2 years
                                                    1166.5950.03
           Agilent          Analyzer, Spectrum         E4446A         MY48250238      2018-05-08         1 year
        Sunol Sciences      System Controller          SC99V            011003-1          N/R             N/A
        Sunol Sciences     Antenna, Biconi-Log           JB1           A013105-3      2018-02-26         2 years
          Wisewave            Antenna, Horn         ARH-4223-02         10555-01      2018-02-14         2 years
          Wisewave            Antenna, Horn         ARH-4223-02         10555-02      2018-02-14         2 years
           Agilent            Amplifier, Pre            8447D          2944A10187     2018-04-02         1 year
                           2.92mm (M) X2, 1501      KPS-1501AN-
      Insulated Wire INC                                                DC 1807       2018-03-13         2 years
                           Armor Neoprene, 396       3960-KPS
              -                SMA cable                  -              C00011        Each time1         N/A
              -               N-Type Cable                -              C00012        Each time1         N/A
                                                                                                   1
              -               N-Type Cable                -              C00014        Each time          N/A
             HP               Pre-Amplifier             8449B          3008A01978     2018-08-10         1 year
        Sunol Sciences        Antenna, Horn           DRH-118           A052704       2017-03-27         2 years
           Vasona             Test software         V6.0 build 11       10400213          N/R             N/R

Note1: cable and attenuator included in the test set-up will be checked each time before testing.
Statement of Traceability: BACL Corp. attests that all of the calibrations on the equipment items listed above were
traceable to NIST or to another internationally recognized National Metrology Institute (NMI), and were compliant with
A2LA Policy P102 (dated 9 June 2016) “A2LA Policy on Metrological Traceability”.




Report Number: R1902192-247                       Page 16 of 28             FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                                    FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

4.6    Test Environmental Conditions

              Temperature:                22-25 ºC
         Relative Humidity:               29-30 %
             ATM Pressure:                102.1 kPa

The testing was performed by Zhao Zhao and Alexandrae Duran from 2019-03-15 to 2019-03-22 in 5m chamber 3.


4.7    Summary of Test Results

According to the data hereinafter, the EUT complied with FCC Title 47, Part 15C standard’s radiated emissions
limits, and had the worst margin of:

2.4GHz Wi-Fi

      Mode: Transmitting
              Margin                 Frequency                   Polarization
                                                                                              Mode, channel
               (dB)                    (MHz)                 (Horizontal/Vertical)

               -6.19                    7236                      Horizontal                 2412 MHz, CCK


BLE

      Mode: Transmitting

              Margin                 Frequency                   Polarization
                                                                                              Mode, channel
               (dB)                    (MHz)                 (Horizontal/Vertical)

               -0.38                    4960                          Vertical                2480 MHz, BLE


Please refer to the following table and plots for specific test result details




Report Number: R1902192-247                           Page 17 of 28              FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                           FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

4.8     Spurious Emissions Test Results

      1) 30 MHz – 1 GHz Worst Case, Measured at 3 meters

      Worst Case Colocation: BLE 2480 MHz, 2.4 GHz Wi-Fi HT/VHT20 mode 2412 MHz and 5 GHz Wi-Fi
      HT/VHT80 mode 5290 MHz




                     Corrected   Antenna   Antenna      Turntable
      Frequency                                                         Limit      Margin
                     Amplitude    Height   Polarity     Azimuth                               Comment
       (MHz)                                                          (dBµV/m)      (dB)
                     (dBµV/m)     (cm)      (H/V)       (degrees)
      37.00475         17.94       300        V              324         40         -22.06       Pass
       38.6945         16.45       265        V              267         40         -23.55       Pass
      42.88775         13.62       285        V              120         40         -26.38       Pass
      98.49475         19.43       115        V              69         43.5        -24.07       Pass
      963.85525         25         200        V              230         54          -29         Pass
       142.18          19.21       200        V              295        43.5        -24.29       Pass




Report Number: R1902192-247                  Page 18 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                                        FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

    2) 1 GHz-18 GHz, measured at 3 meters

         2.4GHz Wi-Fi


           S.A.      Turntable            Test Antenna            Cable              Cord.       FCC/ISED
 Freq.                                                                      Pre-
         Reading     Azimuth                                      Loss              Reading                       Comments
(MHz)                            Height    Polarity      Factor             Amp.                Limit    Margin
         (dBµV)      (degrees)                                    (dB)             (dBµV/m)
                                  (cm)      (H/V)        (dB/m)             (dB)              (dBµV/m)    (dB)
                                   Low Channel 2412 MHz CCK mode power setting: 17
4824      45.65         51        285      H       32.56  8.52  35.66     51.07                 74       -22.93     PK
4824      37.68         51        285      H       32.56  8.52  35.66     43.10                 54       -10.90     AV
4824      47.04         79        288      V       32.56  8.52  35.66     52.46                 74       -21.54     PK
4824      39.03         79        288      V       32.56  8.52  35.66     44.45                 54        -9.55     AV
7236      44.31         0         100      V       36.73  10.92 35.67     56.28                 74       -17.72     PK
7236      35.84         0         100      V       36.73  10.92 35.67     47.81                 54        -6.19     AV
                                   Mid Channel 2437 MHz CCK mode power setting: 17
4874      47.21        309        100      H       32.81  8.52  35.66     52.88                 74       -21.12     PK
4874      39.00        309        100      H       32.81  8.52  35.66     44.67                 54        -9.33     AV
4874      46.91        289        310      V       32.81  8.52  35.66     52.58                 74       -21.42     PK
4874      39.89        289        310      V       32.81  8.52  35.66     45.56                 54        -8.44     AV
7311      44.02         0         100      V       37.06  10.92 35.67     56.32                 74       -17.68     PK
7311      32.78         0         100      V       37.06  10.92 35.67     45.08                 54        -8.92     AV
                                   High Channel 2462 MHz CCK mode power setting: 17
4924      46.62         56        262      V       32.79  8.52  35.66     52.27                 74       -21.73     PK
4924      40.83         56        262      V       32.79  8.52  35.66     46.48                 54        -7.52     AV
7386      44.44         0         100      V       37.02  11.05 35.67     56.84                 74       -17.16     PK
7386      34.72         0         100      V       37.02  11.05 35.67     47.12                 54        -6.88     AV




Report Number: R1902192-247                              Page 19 of 28             FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                                    FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017



           S.A.      Turntable            Test Antenna          Cable     Pre-      Cord.        FCC/ISED
 Freq.
         Reading     Azimuth                                    Loss      Amp.     Reading                       Comments
(MHz)                            Height    Polarity   Factor                                   Limit    Margin
         (dBµV)      (degrees)                                  (dB)      (dB)    (dBµV/m)
                                  (cm)      (H/V)     (dB/m)                                 (dBµV/m)    (dB)
                                 Low Channel 2412 MHz Non HT20 mode power setting: 17
4824      44.35        189       227      H        32.56    8.52  35.66     49.77               74      -24.23     PK
4824      33.23        189       227      H        32.56    8.52  35.66     38.65               54      -15.35     AV
4824      44.87         0        100      V        32.56    8.52  35.66     50.29               74      -23.71     PK
4824      33.65         0        100      V        32.56    8.52  35.66     39.07               54      -14.93     AV
7236      45.42         0        100      V        36.73   10.92  35.67     57.39               74      -16.61     PK
7236      34.02         0        100      V        36.73   10.92  35.67     45.99               54       -8.01     AV
                                 Mid Channel 2437 MHz Non HT20 mode power setting: 17
4874      52.59         0        100      H        32.81    8.52  35.66     58.26               74      -15.74     PK
4874      34.31         0        100      H        32.81    8.52  35.66     39.98               54      -14.02     AV
4874      44.57         0        100      V        32.81    8.52  35.66     50.24               74      -23.76     PK
4874      33.28         0        100      V        32.81    8.52  35.66     38.95               54      -15.05     AV
7311      45.37         0        100      V        37.06   10.92  35.67     57.67               74      -16.33     PK
7311      32.51         0        100      V        37.06   10.92  35.67     44.81               54       -9.19     AV
                                 High Channel 2462 MHz Non HT20 mode power setting: 17
4924      45.76         0        100      V        32.79    8.52  35.66     51.41               74      -22.59     PK
4924      33.96         0        100      V        32.79    8.52  35.66     39.61               54      -14.39     AV
7386      45.42         0        100      V        37.02   11.05  35.67     57.82               74      -16.18     PK
7386      33.02         0        100      V        37.02   11.05  35.67     45.42               54       -8.58     AV




Report Number: R1902192-247                           Page 20 of 28              FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                                    FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017



           S.A.      Turntable            Test Antenna          Cable     Pre-      Cord.        FCC/ISED
 Freq.
         Reading     Azimuth                                    Loss      Amp.     Reading                       Comments
(MHz)                            Height    Polarity   Factor                                   Limit    Margin
         (dBµV)      (degrees)                                  (dB)      (dB)    (dBµV/m)
                                  (cm)      (H/V)     (dB/m)                                 (dBµV/m)    (dB)
                                 Low Channel 2412 MHz HT/VHT20 mode power setting: 17
4824      44.61        192        255      H       32.56    8.52 35.66     50.03                74      -23.97     PK
4824      33.04        192        255      H       32.56    8.52 35.66     38.46                54      -15.54     AV
4824      44.18         0         100      V       32.56    8.52 35.66     49.60                74      -24.40     PK
4824      35.35         0         100      V       32.56    8.52 35.66     40.77                54      -13.23     AV
7236      45.62         0         100      V       36.73   10.92 35.67     57.59                74      -16.41     PK
7236      35.48         0         100      V       36.73   10.92 35.67     47.45                54       -6.55     AV
                                 Mid Channel 2437 MHz HT/VHT20 mode power setting: 17
4874      45.34         0         100      H       32.81    8.52 35.66     51.01                74      -22.99     PK
4874      33.98         0         100      H       32.81    8.52 35.66     39.65                54      -14.35     AV
4874      45.54         0         100      V       32.81    8.52 35.66     51.21                74      -22.79     PK
4874      34.22         0         100      V       32.81    8.52 35.66     39.89                54      -14.11     AV
7311      43.64         0         100      V       37.06   10.92 35.67     55.94                74      -18.06     PK
7311      33.13         0         100      V       37.06   10.92 35.67     45.43                54       -8.57     AV
                                 High Channel 2462 MHz HT/VHT20 mode power setting: 17
4924      45.13         0         100      V       32.79    8.52 35.66     50.78                74      -23.22     PK
4924      34.08         0         100      V       32.79    8.52 35.66     39.73                54      -14.27     AV
7386      47.15         0         100      V       37.02   11.05 35.67     59.55                74      -14.45     PK
7386      33.56         0         100      V       37.02   11.05 35.67     45.96                54       -8.04     AV




Report Number: R1902192-247                           Page 21 of 28              FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                                     FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

BLE, Measured at 1 Meter


           S.A.      Turntable            Test Antenna           Cable     Pre-      Cord.        FCC/ISED
 Freq.
         Reading     Azimuth                                     Loss      Amp.     Reading                       Comments
(MHz)                            Height    Polarity    Factor                                   Limit    Margin
         (dBµV)      (degrees)                                   (dB)      (dB)    (dBµV/m)
                                  (cm)      (H/V)      (dB/m)                                 (dBµV/m)    (dB)
                                                      Low Channel 2402 MHz
4804      56.90        168        113         V         32.56    11.84   35.66       65.65       84      -18.36     PK
4804      52.24        168        113         V         32.56    11.84   35.66       60.99       64       -3.01     AV
4804      55.91        150        170         H         32.56    11.84   35.66       64.66       84      -19.35     PK
4804      51.11        150        170         H         32.56    11.84   35.66       59.86       64       -4.15     AV
7206      54.20        144        124         V         36.73    14.79   35.67       70.05       84      -13.96     PK
7206      47.61        144        124         V         36.73    14.79   35.67       63.46       64       -0.55     AV
7206      53.06        234        131         H         36.73    14.79   35.67       68.91       84      -15.10     PK
7206      45.45        234        131         H         36.73    14.79   35.67       61.30       64       -2.71     AV
                                                      Mid Channel 2426 MHz
4852      56.51        175        104         V         32.81    11.89   38.09       63.12       84      -20.88     PK
4852      51.90        175        104         V         32.81    11.89   38.09       58.51       64       -5.49     AV
4852      57.36        148        120         H         32.81    11.89   38.09       63.97       84      -20.03     PK
4852      53.35        148        120         H         32.81    11.89   38.09       59.96       64       -4.04     AV
7278      51.89        143        182         V         37.06    15.08   37.41       66.62       84      -17.38     PK
7278      43.20        143        182         V         37.06    15.08   37.41       57.93       64       -6.07     AV
7278      50.80        193        170         H         37.06    15.08   37.41       65.53       84      -18.47     PK
7278      41.84        193        170         H         37.06    15.08   37.41       56.57       64       -7.43     AV
                                                      High Channel 2480 MHz
4960      58.58        150        107         V         32.79    12.59   38.15       65.81       84      -18.19     PK
4960      54.44        193        264         V         32.79    12.59   38.15       61.67       64       -2.33     AV
4960      57.23        152        105         H         32.79    12.59   38.15       64.46       84      -19.54     PK
4960      56.39        193        264         H         32.79    12.59   38.15       63.62       64       -0.38     AV
7440      52.76        190        142         V         37.02    15.36   37.62       67.52       84      -16.48     PK
7440      45.02        190        142         V         37.02    15.36   37.62       59.78       64       -4.22     AV
7440      49.17        190        182         H         37.02    15.36   37.62       63.93       84      -20.07     PK
7440      38.80        190        182         H         37.02    15.36   37.62       53.56       64      -10.44     AV




Report Number: R1902192-247                            Page 22 of 28              FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                          FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

    3) 1 GHz - 18 GHz for radio co-location*, measured at 1 meter

2.4GHz and 5GHz notch filters were added.




    4) 18 GHz - 26.5 GHz for radio co-location*, measured at 1 meter




Report Number: R1902192-247                 Page 23 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                         FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

    5) 26.5 GHz - 40 GHz for radio co-location*, measured at 1 meter




*EUT configuration for radio co-location: BLE 2480 MHz, 2.4 GHz Wi-Fi HT/VHT20 mode 2412 MHz and 5
GHz Wi-Fi HT/VHT80 mode 5290 MHz




Report Number: R1902192-247                Page 24 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                               FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

5    Appendix A- EUT Test Setup Photographs

Please refer to the attachment




Report Number: R1902192-247      Page 25 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                               FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

6    Appendix B- EUT External Photographs

Please refer to the attachment




Report Number: R1902192-247      Page 26 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                               FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

7    Appendix C- EUT Internal Photographs

Please refer to the attachment




Report Number: R1902192-247      Page 27 of 28            FCC Part 15C/ISEDC RSS-247 Test Report


Cisco Systems Inc.                                             FCC ID: LDKSKMAA2017, IC: 2461N-SKMAA2017

8    Appendix D (Normative) - ISO/IEC 17025 Certificate and Scope of
     Accreditation




Please follow the web link below for a full ISO 17025 scope
                                 https://www.a2la.org/scopepdf/3297-02.pdf


                                          --- END OF REPORT ---




Report Number: R1902192-247                    Page 28 of 28            FCC Part 15C/ISEDC RSS-247 Test Report



Document Created: 2019-09-07 15:02:15
Document Modified: 2019-09-07 15:02:15

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