RF Exposure MPE

FCC ID: ACQ-IP815

RF Exposure Info

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FCCID_2709464

                                BEC INCORPORATED

                                       SAR REPORT

                               TEST STANDARDS:
                     FCC Part 15 Subpart C Intentional Radiator


                                    ARRIS Model IP815
                                      Set Top Box


                                  REPORT BEC-1621-03


                                      CUSTOMER:
                               ARRIS Group Incorporated
                                 101 Tournament Drive
                                  Horsham, PA 19044




                      PREPARED BY:
                           Steve Fanella, Test Engineer


              REVIEWED and APPROVED BY:
                         Al Fanella, Test Director


The results described in this report relate only to the item(s) tested. This document shall not be
reproduced except in full without prior written permission of BEC Incorporated


                                                     TABLE OF CONTENTS

  Notice To Customer ...................................................................................................................... 3
  Revision History ............................................................................................................................ 3
  1.0   Administrative Information.............................................................................................. 4
     1.1 Project Details .................................................................................................................. 4
     1.2 Maximum Permissible Exposure Calculation .................................................................. 5
     1.3 Maximum Permissible Exposure Calculation Results ..................................................... 6




Report # BEC-1621-03 ARRIS IP815 FCC Part 15.247 Test Report                                                Release Date: 07/27/2015

                                                                 Page 2 of 6


  Notice To Customer
  This report and any recommendations it contains represent the result of BEC’s testing and
  assessment on behalf of your company. Testing has been conducted according to accepted
  engineering standards and practices. This report reflects testing and assessment of product
  samples provided by your company and may not reflect the characteristics of other samples,
  especially those produced at different times. Therefore this report and its findings and
  recommendations, if implemented, should not be construed as an assurance or implied warranty
  for the continuing electromagnetic compatibility (EMC) of the product. BEC shall not be liable
  for incidental or consequential damages, even if advised of the possibility thereof.

  BEC will not disseminate this report to other parties without your express permission. You may
  reproduce this report in its entirety including this notice and the entireties of any supplemental
  test reports on the same product (e.g. reports on additional testing following modification).
  However ‘you may not reproduce portions of the report (except for the entirety of the summary
  section) or quote from it for any purpose without specific prior written permission from BEC’.



  Revision History
  Revision    Description of Changes                Date of Changes          Date Released
  #
  0           Test Report Initial Release           N/A                      07/27/2015




Report # BEC-1621-03 ARRIS IP815 FCC Part 15.247 Test Report               Release Date: 07/27/2015

                                             Page 3 of 6


  1.0 Administrative Information

  1.1    Project Details

        Project Number                BEC-1621
        Set Top Box Manufacturer      ARRIS Group Incorporated
        Set Top Box Model Number      IP815
        Set Top Box Serial Number     M11513TH0379
                                      1621-05
        Set Top Box Sample Number
                                      (Unmodified Antennas)
        Set Top Box Serial Number     M11513TH0360
                                      1621-04
        Set Top Box Sample Number
                                      (Modified With SMA Ports to the Antennas)
        FCC ID                        ACQ-IP815
        Frequency of Operation        2400 - 2483.5 MHz
                                      BEC Incorporated
        Test Laboratory Location      970 East High Street
                                      Pottstown, PA 19464
                                      ARRIS Group Incorporated
        Test Performed For            101 Tournament Drive
                                      Horsham, PA 19044
        Test Personnel                Paul Banker / Steve Fanella
        Technical Contact             Mike Welty
        Date Received                 07/09/2015
        Condition Received            Suitable for test
        Sample Type                   Production unit
        EUT Classification            Unlicensed Unintentional Radiator
        FCC Classification            DTS- Part 15 Digital Transmission System
                                      FCC Rules Part 15.247: Operation within the
        Applicable FCC Rule Part      bands 920-928 MHz, 2400-2483.5 MHz and 5725-
                                      5850 MHz Direct Sequence System




Report # BEC-1621-03 ARRIS IP815 FCC Part 15.247 Test Report        Release Date: 07/27/2015

                                        Page 4 of 6


  1.2       Maximum Permissible Exposure Calculation

  §15.247 Operation within the bands 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz.

      (i)     Systems operating under the provisions of this section shall be operated in a manner
              that ensures that the public is not exposed to radio frequency energy levels in excess
              of the Commission's guidelines. See §1.1307(b)(1) of this chapter.

  §1.1307 Actions that may have a significant environmental effect, for which Environmental
  Assessments (EAs) must be prepared.

  (b)(1) The appropriate exposure limits in §§1.1310 and 2.1093 of this chapter are generally
  applicable to all facilities, operations and transmitters regulated by the Commission.

  §1.1310 Radiofrequency radiation exposure limits.

  (2) At operating frequencies less than or equal to 6 GHz, the limits for maximum permissible
  exposure (MPE), derived from whole-body SAR limits and listed in Table 1 of paragraph (e) of
  this section, may be used instead of whole-body SAR limits as set forth in paragraph (a) through
  (c) of this section to evaluate the environmental impact of human exposure to RF radiation as
  specified in §1.1307(b), except for portable devices as defined in §2.1093 as these evaluations
  shall be performed according to the SAR provisions in §2.1093 of this chapter.

  (4) Both the MPE limits listed in Table 1 of paragraph (e) of this section and the SAR limits as
  set forth in paragraph (a) through (c) of this section and in §2.1093 of this chapter are for
  continuous exposure, that is, for indefinite time periods. Exposure levels higher than the limits
  are permitted for shorter exposure times, as long as the average exposure over the specified
  averaging time in Table 1 is less than the limits. Detailed information on our policies regarding
  procedures for evaluating compliance with all of these exposure limits can be found in the FCC's
  OET Bulletin 65, “Evaluating Compliance with FCC Guidelines for Human Exposure to
  Radiofrequency Electromagnetic Fields,” and in supplements to Bulletin 65, all available at the
  FCC's Internet Web site: http://www.fcc.gov/oet/rfsafety


  §2.1093 Radiofrequency radiation exposure evaluation: portable devices.

   (b) For purposes of this section, a portable device is defined as a transmitting device designed to
  be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of
  the user.




Report # BEC-1621-03 ARRIS IP815 FCC Part 15.247 Test Report                Release Date: 07/27/2015

                                              Page 5 of 6


  From: OET Bulletin 65 Edition 97-02, page 19.

                 S = __PG__                     (3)
                       4πR2

  where:         S = Power Density (in appropriate units, e.g., mW/cm2)
                 P = Power input to the antenna (in appropriate units, e.g., mW)
                 G = Power Gain of the antenna in the direction of interest to an isotropic radiator
                 R = distance to the center of radiation of the antenna (appropriate units, e.g., cm)


  or:            S = __EIRP__                   (4)
                       4πR2

  where:         EIRP = equivalent (or effective) isotropically radiated power


  1.3      Maximum Permissible Exposure Calculation Results

  Effective Isotropic Radiated Power (EIRP) =

           Antenna Power Output (dBW) + antenna gain (dBi) or
           Antenna Power Output (Watts) X numeric gain

             Antenna Power       Antenna Gain               EIRP
                  dBW                dBi                     dBW
                 -29.17               3                     -26.17

             Antenna Power       Antenna Gain             EIRP
                 Watts             numeric                Watts
                .001210             1.9953               .002415

  The value R, distance to the center of radiation of the antenna, is 20 cm.


           S = __EIRP__         =       _ 2.415 mW__            =      .0004805 mW/cm2
                 4πR2                       4π(20)2

  Results: The calculated Power Density of the measurements for antenna 0 and antenna 1 of the
  ARRIS Model IP815 Set Top Box is 0.0004805 mW/cm2. This complies with the limit of 1.0
  mW/cm2 from Table 1(B) of 47 CFR Part 1.1310. Therefore, no exposure evaluation is required.



Report # BEC-1621-03 ARRIS IP815 FCC Part 15.247 Test Report                   Release Date: 07/27/2015

                                              Page 6 of 6



Document Created: 2015-07-29 11:15:52
Document Modified: 2015-07-29 11:15:52

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