R12053557-E24 v1 RF EXPOSURE REPORT

FCC ID: A94424821

RF Exposure Info

Download: PDF
FCCID_4000421

          FCC Part 1 Subpart I
          FCC Part 2 Subpart J
     ISED CANADA RSS 102 ISSUE 5

        RF EXPOSURE REPORT

                 FOR

         WIRELESS MODULE

       MODEL NUMBER: 424821

          FCC ID: A94424821
           IC: 3232A-424821

    REPORT NUMBER: R12053557-E24

        ISSUE DATE: 2018-05-22

             Prepared for
         BOSE CORPORATION
       100 THE MOUNTAIN ROAD
     FRAMINGHAM, MA 01701, USA


             Prepared by
               UL LLC
        12 LABORATORY DR.
RESEARCH TRIANGLE PARK, NC 27709 USA
         TEL: (919) 549-1400




        NVLAP LAB CODE 200246-0


REPORT NO: R12053557-E24                                                         DATE: 2018-05-22
FCC ID: A94424821                                                                IC: 3232A-424821

                                           Revision History



           Issue
 Ver.      Date            Revisions                                               Revised By
   1       2018-05-22      Initial Issue                                           Brian T. Kiewra




                                             Page 2 of 11
UL LLC                                                                    FORM NO: 03-EM-F00858
12 Laboratory Dr., RTP, NC 27709                                              TEL: (919) 549-1400
    This report shall not be reproduced except in full, without the written approval of UL LLC.


REPORT NO: R12053557-E24                                                                                          DATE: 2018-05-22
FCC ID: A94424821                                                                                                 IC: 3232A-424821

                                               TABLE OF CONTENTS
1.     ATTESTATION OF TEST RESULTS ..................................................................................4

2.     TEST METHODOLOGY ......................................................................................................5

3.     REFERENCES ....................................................................................................................5

4.     FACILITIES AND ACCREDITATION ..................................................................................5

5.     MAXIMUM PERMISSIBLE RF EXPOSURE ........................................................................6
     5.1.    FCC RULES .................................................................................................................6
     5.2.    IC RULES .....................................................................................................................7
     5.3.    EQUATIONS.................................................................................................................8
     5.4.    LIMITS AND IC EXEMPTION .....................................................................................10

6.     RF EXPOSURE RESULTS................................................................................................11




                                                             Page 3 of 11
UL LLC                                                                                                  FORM NO: 03-EM-F00858
12 Laboratory Dr., RTP, NC 27709                                                                            TEL: (919) 549-1400
      This report shall not be reproduced except in full, without the written approval of UL LLC.


REPORT NO: R12053557-E24                                                        DATE: 2018-05-22
FCC ID: A94424821                                                               IC: 3232A-424821



1. ATTESTATION OF TEST RESULTS
COMPANY NAME:                 Bose Corporation
                              100 The Mountain
                              Framingham, MA 01701, USA

EUT DESCRIPTION:              Wireless Module

MODEL:                        424821

SERIAL NUMBER:                0199

DATE TESTED:                  2018-03-15 to 2018-05-08

                                   APPLICABLE STANDARDS
                          STANDARD                                     TEST RESULTS
         FCC PART 1 SUBPART I & PART 2 SUBPART J                          Compliant
                ISED CANADA RSS 102 ISSUE 5                               Compliant

UL LLC tested the above equipment in accordance with the requirements set forth in the above
standards. All indications of Pass/Fail in this report are opinions expressed by UL LLC based on
interpretations and/or observations of test results. Measurement Uncertainties were not taken
into account and are published for informational purposes only. The test results show that the
equipment tested is capable of demonstrating compliance with the requirements as documented
in this report.

Note: The results documented in this report apply only to the tested sample, under the
conditions and modes of operation as described herein. This document may not be altered or
revised in any way unless done so by UL LLC and all revisions are duly noted in the revisions
section. Any alteration of this document not carried out by UL LLC will constitute fraud and shall
nullify the document. This report must not be used by the client to claim product certification,
approval, or endorsement by NVLAP, NIST, or any agency of the U.S. Government.

 Approved & Released                              Prepared By:
 For UL LLC By:




 Jeffrey Moser                                    Brian T. Kiewra
 Operations Leader                                Project Engineer
 UL – Consumer Technology Division                UL – Consumer Technology Division




                                           Page 4 of 11
UL LLC                                                                   FORM NO: 03-EM-F00858
12 Laboratory Dr., RTP, NC 27709                                             TEL: (919) 549-1400
   This report shall not be reproduced except in full, without the written approval of UL LLC.


REPORT NO: R12053557-E24                                                        DATE: 2018-05-22
FCC ID: A94424821                                                               IC: 3232A-424821



2. TEST METHODOLOGY
All calculations were made in accordance with FCC Parts 2.1091, 2.1093 and KDB 447498 D01
v06 and IC Safety Code 6, RSS 102 Issue 5.


3. REFERENCES
All measurements were made as documented in test report UL LLC Documents R12053557-
E10, R12053557-E11 and R12053557-E12 for operation in the 2.4 GHz band and UL LLC
Document R12053557-E13 for operation in the 5 GHz bands.

Output power, Duty cycle and Antenna gain data is excerpted from the applicable test reports.



4. FACILITIES AND ACCREDITATION
The test sites and measurement facilities used to collect data are located at 12 Laboratory Dr.,
Research Triangle Park, NC 27709, USA and 2800 Perimeter Park Drive, Suite B, Morrisville,
NC 27560.

UL LLC (RTP) is accredited by NVLAP, Laboratory Code 200246-0. The full scope of
accreditation can be viewed at http://www.nist.gov/nvlap/




                                           Page 5 of 11
UL LLC                                                                   FORM NO: 03-EM-F00858
12 Laboratory Dr., RTP, NC 27709                                             TEL: (919) 549-1400
   This report shall not be reproduced except in full, without the written approval of UL LLC.


REPORT NO: R12053557-E24                                                        DATE: 2018-05-22
FCC ID: A94424821                                                               IC: 3232A-424821

5. MAXIMUM PERMISSIBLE RF EXPOSURE
   5.1.        FCC RULES
§1.1310 The criteria listed in Table 1 shall be used to evaluate the environmental impact of
human exposure to radio-frequency (RF) radiation as specified in §1.1307(b), except in the case
of portable devices which shall be evaluated according to the provisions of §2.1093 of this
chapter.




                                          Page 6 of 11
UL LLC                                                                   FORM NO: 03-EM-F00858
12 Laboratory Dr., RTP, NC 27709                                             TEL: (919) 549-1400
   This report shall not be reproduced except in full, without the written approval of UL LLC.


REPORT NO: R12053557-E24                                                                   DATE: 2018-05-22
FCC ID: A94424821                                                                          IC: 3232A-424821

    5.2.        IC RULES
IC Safety Code 6 (2015), Section 2.2.2: To ensure compliance with the basic restrictions outlined
in Section 2.1, at frequencies between 10 MHz and 300 GHz, the reference levels for electric- and
magnetic-field strength and power density must be complied with.

TABLE 5: Reference Levels for Electric Field Strength, Magnetic Field Strength and Power
Density in Uncontrolled Environments




TABLE 6: Reference Levels for Electric Field Strength, Magnetic Field Strength and Power
Density in Controlled Environments




                                               Page 7 of 11
UL LLC                                                                           FORM NO: 03-EM-F00858
12 Laboratory Dr., RTP, NC 27709                                                     TEL: (919) 549-1400
    This report shall not be reproduced except in full, without the written approval of UL LLC.


REPORT NO: R12053557-E24                                                        DATE: 2018-05-22
FCC ID: A94424821                                                               IC: 3232A-424821

   5.3.        EQUATIONS
POWER DENSITY

Power density is given by:

S = EIRP / (4 * Pi * D^2)

Where

S = Power density in mW/cm^2
EIRP = Equivalent Isotropic Radiated Power in mW
D = Separation distance in cm

Power density in units of mW/cm^2 is converted to units of W/m^2 by multiplying by 10.


DISTANCE

Distance is given by:

D = SQRT (EIRP / (4 * Pi * S))

Where

D = Separation distance in cm
EIRP = Equivalent Isotropic Radiated Power in mW
S = Power density in mW/cm^2


SOURCE-BASED DUTY CYCLE

Where applicable (for example, multi-slot cell phone applications) a duty cycle factor may be
applied.

Source-based time-averaged EIRP = (DC / 100) * EIRP

Where

DC = Duty Cycle in %, as applicable
EIRP = Equivalent Isotropic Radiated Power in W




                                          Page 8 of 11
UL LLC                                                                   FORM NO: 03-EM-F00858
12 Laboratory Dr., RTP, NC 27709                                             TEL: (919) 549-1400
   This report shall not be reproduced except in full, without the written approval of UL LLC.


REPORT NO: R12053557-E24                                                           DATE: 2018-05-22
FCC ID: A94424821                                                                  IC: 3232A-424821

MIMO AND COLOCATED TRANSMITTERS (IDENTICAL LIMIT FOR ALL TRANSMITTERS)

For multiple chain devices, and colocated transmitters operating simultaneously in frequency
bands where the limit is identical, the total power density is calculated using the total EIRP
obtained by summing the EIRP (in linear units) of each transmitter.

Total EIRP = (EIRP1) + (EIRP2) + ... + (EIRPn)

where

EIRPx = Source-based time-averaged EIRP of chain x or transmitter x

The total EIRP is then used to calculate the Power Density or the Distance as applicable.


MIMO AND COLOCATED TRANSMITTERS

For multiple colocated transmitters operating simultaneously in frequency bands where different
limits apply:

The Power Density at the specified separation distance is calculated for each transmitter chain
or transmitter.

The fraction of the exposure limit is calculated for each chain or transmitter as
(Power Density of chain or transmitter) / (Limit applicable to that chain or transmitter).

The fractions are summed.

Compliance is established if the sum of the fractions is less than or equal to one.




                                            Page 9 of 11
UL LLC                                                                      FORM NO: 03-EM-F00858
12 Laboratory Dr., RTP, NC 27709                                                TEL: (919) 549-1400
    This report shall not be reproduced except in full, without the written approval of UL LLC.


REPORT NO: R12053557-E24                                                         DATE: 2018-05-22
FCC ID: A94424821                                                                IC: 3232A-424821

    5.4.       LIMITS AND IC EXEMPTION

INDUSTRY CANADA EXEMPTION

RSS-102 Clause 2.5.2 RF exposure evaluation is required if the separation distance between
the user and the device’s radiating element is greater than 20 cm, except when the device
operates as follows:

•   at or above 300 MHz and below 6 GHz and the source-based, time-averaged maximum
    e.i.r.p. of the device is equal to or less than 1.31 x 10-2 ƒ0.6834 W (adjusted for tune-up
    tolerance), where ƒ is in MHz;




                                           Page 10 of 11
UL LLC                                                                    FORM NO: 03-EM-F00858
12 Laboratory Dr., RTP, NC 27709                                              TEL: (919) 549-1400
    This report shall not be reproduced except in full, without the written approval of UL LLC.


REPORT NO: R12053557-E24                                                           DATE: 2018-05-22
FCC ID: A94424821                                                                  IC: 3232A-424821

6. RF EXPOSURE RESULTS
In the table(s) below, Power and Gain are entered in units of dBm and dBi respectively and
conversions to linear forms are used for the calculations.


Multiple chain or colocated transmitters
 Band        Mode      Chain Separation      Output Antenna Duty      EIRP FCC Power         IC
                         for   Distance      Power    Gain    Cycle             Density    P
                                                                                           Density

                        MIMO       (cm)      (dBm)    (dBi)    (%)    (mW) (mW/cm^2) (W/m^2)
 2.4 GHz    Bluetooth   N/A                  11.50     1.61   100.0   20.5
 2.4 GHz     WLAN        1                   19.50     3.34   100.0 192.3
 2.4 GHz     WLAN        2                   19.50     1.61   100.0 129.1
  5 GHz      WLAN        1                   15.50     2.16   100.0   58.4
  5 GHz      WLAN        2                   15.50     2.28   100.0   60.0
           Combined                20                                 460.3      0.092       0.92




Notes:

   1) For MPE the new KDB 447498 requires the calculations to use the maximum rated
      power; that power should be declared by the manufacturer, and should not be lower than
      the measured power.

   2) The values above include tune up tolerances under extreme conditions in the real field
      as declared by the client.

   3) The output power in the tables above is the maximum power per chain among various
      channels and various modes within the specific band.

   4) The antenna gain in the tables above is the maximum antenna gain among various
      channels within the specified band.



                                          END OF REPORT




                                            Page 11 of 11
UL LLC                                                                       FORM NO: 03-EM-F00858
12 Laboratory Dr., RTP, NC 27709                                                 TEL: (919) 549-1400
   This report shall not be reproduced except in full, without the written approval of UL LLC.



Document Created: 2018-05-22 09:32:13
Document Modified: 2018-05-22 09:32:13

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC