Test Report_20170815_v1 - 423816 SAR Exclusion

FCC ID: A94423816

RF Exposure Info

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FCCID_3522540

DESIGN ASSURANCE ENGINEERING SAR Exclusion Calculation Certificate # 1514.1 Test Type: SAR Exclusion Calculation Product Type: Wireless Speaker Product Name/Number: Model Number: 423816 FCC ID: A94423816 IC: 3232A-423816 Prepared For: Design Assurance Engineering Department, Bose Corporation Test Results: Pass [X] Applicable Standards: FCC 47 CFR 2.1093 SAR As per FCC KDB 447498 D01 General RF Exposure Guidance DR03-41372 RSS-102 Section 2.51 Report Number: EMC.423816.17.137.2 General Comments/Special Test Conditions: This report relates only to the items tested. This report covers EMC marking requirements for Enter product and any special modifications or test conditions. Print Name Signature Date Prepared By: Chad Bell August 3, 2017 * Since every test result is separately reviewed after its completion, the electrical engineer review indicated above represents a higher level review to ensure this report lists and contains all applicable and appropriate requirements. If the report carries the “accredited” logo, the reviewer must verify all the tests in this report are covered under the current ISO17025 accreditation. The A2LA-accredited logo must be removed if any of the tests in the report are not performed under the current scope of accreditation. It is the responsibility or the reviewer to ensure the A2LA advertising policy is followed. Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Form FL300959 Rev 04 Tel: (508) 766-6000 Fax: (508) 766-1145 BOSE CONFIDENTIAL Without written permission of laboratory, this report shall not be reproduced except in full. EMC.423816.17.137.2 Page 1 of 3

DESIGN ASSURANCE ENGINEERING SAR Exclusion Calculation Certificate # 1514.1 FCC 47 CFR 2.1093 SAR Exclusion Calculation As per FCC KDB 447498 D01 General RF Exposure Guidance DR03-41372 All power readings below reflect 1dB addition to account for radio tolerance. Maximum (100 MHz to 6 GHz) Maximum d d conducted Worst S S 1-g SAR Exclusion conducted Antenna EIRP Separation Separation output power EIRP EIRP Possible Power Power Frequency Threshold SAR Testing output power, Gain Duty Cylce Distance Distance measured plus (dBm) (mW) Duty Density Density (GHz) Applies only if: d <= Exclusion tolerance (dBi) Corrected (mW) (cm) (mm) tolerance of 1dB Cycle (%) (mW/cm^2) (W/m^2) 50mm) included (mW) (dBm) <= 3.0 9.72 9.4 3.574 13.294 21.35 78 16.653 2.75603 27.5603 0.174 1.74 2.45 0.532 No SAR RSS-102 SAR exemption calculation Summary: Minimum typical separation distance between the antenna and the user when attached via the strap= 27.5603mm Exemption limit from RSS-102 for routine evaluation based on frequency and separation distance for 2450 MHz @ 25mm = 48 mW (see Appendix A: Table 1) EUT’s EIRP = 16.96 mW or 21.35 mW if tolerance is added (see EIRP calculation below) Both 21.35 mW and 16.96 mW are less than 48 mW, therefore the EUT is exempt from routine SAR evaluation. EIRP calculation: 8.72 dBm peak conducted RF output power as measured using a method compliant with RSS-210 3.574dBi dBi peak antenna gain EIRP = peak conducted RF power + peak antenna gain = 8.72 dBm + 3.574 dBi = 12.294 dBm = 16.96mW Conclusion: For our EUT transmitting at 2450 MHz, if evaluate the EUT against the exemption limits at a distance of 25mm (minimum distance from antenna to outside of enclosure), the power at this distance must be below 48 mW. 48 mW – 16.96 mW = 31.04 mW of margin (pass). Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Form FL300959 Rev 04 Tel: (508) 766-6000 Fax: (508) 766-1145 BOSE CONFIDENTIAL Without written permission of laboratory, this report shall not be reproduced except in full. EMC.423816.17.137.2 Page 2 of 3

DESIGN ASSURANCE ENGINEERING SAR Exclusion Calculation Certificate # 1514.1 From RSS-102: 2.5.1 Exemption Limits for Routine Evaluation — SAR Evaluation SAR evaluation is required if the separation distance between the user and/or bystander and the antenna and/or radiating element of the device is less than or equal to 20 cm, except when the device operates at or below the applicable output power level (adjusted for tune-up tolerance) for the specified separation distance defined in Table 1. Output power level shall be the higher of the maximum conducted or equivalent isotropically radiated power (e.i.r.p.) source-based, time-averaged output power. For controlled use devices where the 8 W/kg for 1 gram of tissue applies, the exemption limits for routine evaluation in Table 1 are multiplied by a factor of 5. For limb- worn devices where the 10 gram value applies, the exemption limits for routine evaluation in Table 1 are multiplied by a factor of 2.5. If the operating frequency of the device is between two frequencies located in Table 1, linear interpolation shall be applied for the applicable separation distance. For test separation distance, less than 5 mm, the exemption limits for a separation distance of 5 mm can be applied to determine if a routine evaluation is required. Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Form FL300959 Rev 04 Tel: (508) 766-6000 Fax: (508) 766-1145 BOSE CONFIDENTIAL Without written permission of laboratory, this report shall not be reproduced except in full. EMC.423816.17.137.2 Page 3 of 3


Document Created: 2017-08-15 09:07:38
Document Modified: 2017-08-15 09:07:38
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