RF Exposure Info._20170814_v1 - 3_11899001 3422914_SAR_Exclusion

FCC ID: A94422914

RF Exposure Info

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FCCID_3551844

DESIGN ASSURANCE ENGINEERING SAR Exclusion Calculation Certificate # 1514.1 FCC ID: A94422914 IC: 3232A-422914 Test Type: SAR Test Exclusion Product Type: Wireless Speaker Product Name/Number: Model Number: 422914 FCC ID: A94422914 IC: 3232A-422914 Prepared For: Design Assurance Engineering Department, Bose Corporation Results: SAR test exempt Applicable Standards: FCC CFR 2.1093 SAR Exclusion Calculation Industry Canada RSS-102 Report Number: EMC.422914.17.219.1 Print Name Signature Date Prepared By: Bryan Cerqua August 7, 2017 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. Report Number: EMC.422914.17.219.1 Page 1 of 8

DESIGN ASSURANCE ENGINEERING SAR Exclusion Calculation Certificate # 1514.1 FCC ID: A94422914 IC: 3232A-422914 Table of Contents 1. Minimum distance declaration ................................................................................................................................................... 3 2. Maximum EIRP.......................................................................................................................................................................... 4 3. Duty cycle .................................................................................................................................................................................. 5 4. FCC ........................................................................................................................................................................................... 6 5. Industry Canada ........................................................................................................................................................................ 8 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. Report Number: EMC.422914.17.219.1 Page 2 of 8

DESIGN ASSURANCE ENGINEERING SAR Exclusion Calculation Certificate # 1514.1 FCC ID: A94422914 IC: 3232A-422914 1. Minimum distance declaration Separation distance between EUT and closest part of the body is =< 5mm Minimum declared separation distance ~ 5 mm, d = 5 mm PCB etch antenna 5 mm Inside view showing PCB etch antenna (Antenna gain is 1.84 dBi) 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. Report Number: EMC.422914.17.219.1 Page 3 of 8

DESIGN ASSURANCE ENGINEERING SAR Exclusion Calculation Certificate # 1514.1 FCC ID: A94422914 IC: 3232A-422914 2. Maximum EIRP The maximum conducted output power is shown below for Bluetooth (BT) and Bluetooth Low Energy (BLE). Data taken for FCC & IC reports: Bose_Model_422914_BT_Report_Rev1.pdf Bose_Model_422914_BLE_Report_Rev1.pdf It is not possible to have BT and BLE transmit at the same time. Bluetooth conducted output power Output Power Summary Table (Basic Rate: 1 Mbps) Output Directional Frequency Limit Margin Channel Mode Power Gain Result (MHz) (dB) (dB) (dBm) (dBi) Low 2402 DH5 5.81 1.84 30 24.19 Pass Middle 2441 DH5 6.96 1.84 30 23.04 Pass High 2480 DH5 7.79 1.84 30 22.21 Pass Output Power Summary Table (Enhanced Rate: 2 Mbps) Output Directional Frequency Limit Margin Channel Mode Power Gain Result (MHz) (dB) (dB) (dBm) (dBi) Low 2402 2-DH5 4.59 1.84 30 25.41 Pass Middle 2441 2-DH5 6.29 1.84 30 23.71 Pass High 2480 2-DH5 7.25 1.84 30 22.75 Pass Output Power Summary Table (Enhanced Rate: 3 Mbps) Output Directional Frequency Limit Margin Channel Mode Power Gain Result (MHz) (dB) (dB) (dBm) (dBi) Low 2402 3-DH5 4.92 1.84 30 25.08 Pass Middle 2441 3-DH5 6.46 1.84 30 23.54 Pass High 2480 3-DH5 7.40 1.84 30 22.60 Pass Bluetooth Low Energy conducted output power Output Power Summary Table (BLE) Output Directional Frequency Limit Margin Channel Power Gain Result (MHz) (dB) (dB) (dBm) (dBi) Low 2402 5.82 0 30 24.18 Pass Middle 2440 6.92 0 30 23.08 Pass High 2480 7.80 0 30 22.20 Pass Maximum power for Bluetooth is 7.79 dBm (Basic rate: 1 Mbps); rounding up to 7.8 dBm Maximum power for Bluetooth low energy is 7.8 dBm. 17 units were screen for power variation, worst case spread including tune up tolerance was 1.17 dB Antenna gain: 1.84 dBi Maximum EIRP = 7.8 + 1.17 + 1.84 = 10.8 dBm (12 mW) 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. Report Number: EMC.422914.17.219.1 Page 4 of 8

DESIGN ASSURANCE ENGINEERING SAR Exclusion Calculation Certificate # 1514.1 FCC ID: A94422914 IC: 3232A-422914 3. Duty cycle Duty cycle measurements were made while operating in normal Bluetooth mode as well as operating in Bluetooth Low Energy mode. EUT paired with iPod playing music. (Bluetooth mode) Measured duty cycle 2.9 % (100mS capture window) Duty cycle while operating in Bluetooth Low energy mode. Measured duty cycle 0.44% (500mS capture window) Worst case duty cycle is when operating in normal Bluetooth mode; 2.9 % rounding up to 3% Note: Duty cycles obtained when using BlueTest3 don’t represent normal operating type duty cycle. 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. Report Number: EMC.422914.17.219.1 Page 5 of 8

DESIGN ASSURANCE ENGINEERING SAR Exclusion Calculation Certificate # 1514.1 FCC ID: A94422914 IC: 3232A-422914 4. FCC Reference KDB 447498: D01 General RF Exposure Guidance v06, October 23, 2015 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. Report Number: EMC.422914.17.219.1 Page 6 of 8

DESIGN ASSURANCE ENGINEERING SAR Exclusion Calculation Certificate # 1514.1 FCC ID: A94422914 IC: 3232A-422914 SAR test exclusion calculation: Bluetooth normal operation: (A2DP mode): Separation distance between EUT antenna and human body = 5mm Maximum EIRP = 10.8 dBm (12 mW) Duty Cycle = 3 % EIRP (dBm) duty cycle corrected = 10.8 – 10*Log(1/0.03) = 10.8 – 15.2 = -4.4 dBm (0.36 mW) (Max ERIP (mW)) / (Separation distance (mm)) * √f(GHz) < = 3.0 (0.36 / 5 ) * √f(2.48) = 0.11 < 3.0 SAR test exempt. If BlueTest3 where used to transmit DH5 packet with maximum payload: (FYI, test mode only, not typical of normal operation) Duty cycle = 78 % EIRP (dBm) duty cycle corrected = 10.8 – 10*Log(1/0.78) = 10.8 – 1.08 = 9.72 dBm (9.37 mW) (Max ERIP (mW)) / (Separation distance (mm)) * √f(GHz) < = 3.0 (9.37 / 5 ) * √f(2.48) = 2.95 < 3.0 SAR test exempt. 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. Report Number: EMC.422914.17.219.1 Page 7 of 8

DESIGN ASSURANCE ENGINEERING SAR Exclusion Calculation Certificate # 1514.1 FCC ID: A94422914 IC: 3232A-422914 5. Industry Canada Reference: RSS-102 Issue 5 Factoring in real use duty cycle (3%), the maximum EIRP = -4.4 dB (0.36mW) see page 7. 0.36 mW is less than the 4 mW limit, therefore the EUT qualifies for SAR test exclusion. 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. Report Number: EMC.422914.17.219.1 Page 8 of 8


Document Created: 2017-08-07 14:44:11
Document Modified: 2017-08-07 14:44:11
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