1756-FCCIC-RF Exposure Evaluation Report

FCC ID: C3K1756

RF Exposure Info

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FCCID_3166248

RF Exposure Evaluation Report For MODEL NO. 1756 FCC ID: C3K1756 IC ID: 3048A-1756 Test Report No. R-TR378-FCCIC-RFE-2 Issue Date: 26 Sep, 2016 FCC CFR47 Part 2.1093 ISED Canada RSS-102: Issue 5 Prepared by Microsoft EMC Laboratory 17760 NE 67th Ct, Redmond WA, 98052, U.S.A. 425-421-9799 sajose@microsoft.com TESTING CERT #3472.01 Report V2.0

1 Record of Revisions Revision Date Section Page(s) Summary of Changes Author/Revised By: 1.0 08/04/2016 All All Version 1.0 Daniel Salinas 2.0 09/26/2016 All All Updated Report file name. Daniel Salinas Report#: R-TR378-FCCIC-RFE-2 Issued: 26 Sep, 2016 Page 2 of 10 Microsoft EMC Laboratory

Table of Contents 1 Record of Revisions ............................................................................................................... 2 2 Product Description ............................................................................................................... 5 3 Facilities and Accreditations .................................................................................................. 6 3.1 Test Facility .................................................................................................................... 6 3.2 Accreditations ................................................................................................................. 6 4 Average Conducted Output Power Measurements ............................................................... 7 4.1 Test Configuration .......................................................................................................... 7 4.2 Test Method- Average Power ......................................................................................... 7 4.3 Test Equipment List ........................................................................................................ 7 4.4 Test Results .................................................................................................................... 8 5 SAR Test Exclusion ............................................................................................................... 9 5.1 FCC ................................................................................................................................ 9 5.2 ISED ............................................................................................................................... 9 Report#: R-TR378-FCCIC-RFE-2 Issued: 26 Sep, 2016 Page 3 of 10 Microsoft EMC Laboratory

Test Report Attestation Microsoft Corporation Model: 1756 FCC ID: C3K 1756 IC ID: 3048A-1756 Applicable Standards Specification Test Result FCC CFR47 Part 2.1093 Complies ISED Canada RSS-102 Issue 5 Microsoft EMC Laboratory attests that the product model identified in this report has been tested to and meets the requirements identified in the above standards. The test results in this report solely pertains to the specific sample tested, under the conditions and operating modes as provided by the customer. This report shall not be used to claim product certification, approval, or endorsement by A2LA or any agency of any Government. Reproduction, duplication or publication of extracts from this test report requires prior written approval of Microsoft EMC Laboratory. This report replaces the previously issued report #R-TR378-FCCIC-MPE-1 issued by Microsoft EMC Labs on 8/4/2016. Written by: Daniel Salinas Reviewed/ Approved by: Sajay Jose Radio Test Lead EMC/RF Compliance Lab Manager Report#: R-TR378-FCCIC-RFE-2 Issued: 26 Sep, 2016 Page 4 of 10 Microsoft EMC Laboratory

2 Product Description Company Name: Microsoft Corporation Address: One Microsoft Way City, State, Zip: Redmond, WA 98052-6399 Customer Contact: Chaitrali Limaye Functional Description of Wireless Input Accessory Device with BTLE Radio the EUT: Model: 1756 FCC ID: C3K1756 IC ID: 3048A-1756 Radio Description: Bluetooth LE Frequency Range of 2.4 GHz- 2.4835 GHz Operation: Internal Antenna Antenna Info: Gain: +1.73 dBi (@2.4 GHz) EUT Classification: DTS Equipment Design State: Production Equivalent Equipment Condition: Good RF Exposure Conditions: Extremity Exposure, Body Exposure Report#: R-TR378-FCCIC-RFE-2 Issued: 26 Sep, 2016 Page 5 of 10 Microsoft EMC Laboratory

3 Facilities and Accreditations 3.1 Test Facility All facilities used to collect the test data are located at Microsoft EMC Laboratory, 17760 NE 67th Ct, Redmond WA, 98052, USA 3.2 Accreditations The lab is established and follows procedures as outlined in IEC/ISO 17025 and A2LA accreditation requirements. A2LA Accredited Testing Certificate Number: 3472.01 Report#: R-TR378-FCCIC-RFE-2 Issued: 26 Sep, 2016 Page 6 of 10 Microsoft EMC Laboratory

4 Average Conducted Output Power Measurements 4.1 Test Configuration The EUT is pre-programmed to transmit continuously in BTLE mode at low/mid/high channels of the frequency band. The actual test mode is identified by the LED on the EUT. Channel 0: Slow White LED blink. Channel 19: Fast white LED blink. Channel 39: Solid white LED blink. 4.2 Test Method- Average Power (According to KDB 558074 Section 9.2.3.1) Antenna port conducted measurements were performed on a bench-top setup consisting of an average power meter and pre-characterized RF cables. Total Average Power (dBm)= Measured Average Power (dBm)+ DCF (dB) EIRP (Effective Isotropic Radiated Power) is calculated based on the following formula: 4.3 Test Equipment List Manufacturer Description Model # Asset # Calibration Due Rohde & Power Meter NRP2 RF-237 4/14/2017 Schwarz Rohde & Power Sensor NRP-Z81 RF-282 4/12/2017 Schwarz Report#: R-TR378-FCCIC-RFE-2 Issued: 26 Sep, 2016 Page 7 of 10 Microsoft EMC Laboratory

4.4 Test Results Table 1: Average Power Measured Measured Maximum EIRP EIRP Frequency Mode Average Average Antenna (dBm) (mW) (MHz) Power (dBm) Power (mW) Gain (dBi) 2402 GFSK 0.10 1.02 1.73 1.83 1.52 2440 GFSK -0.04 0.99 1.73 1.69 1.48 2480 GFSK 0.06 1.01 1.73 1.79 1.51 Table 2: Max Average Power Maximum Maximum Maximum EIRP EIRP manufacturer manufacturer Antenna (dBm) (mW) Frequency stated Average stated Average Gain (MHz) Power Power (dBi) (adjusted for Tune (adjusted for Tune up up Tolerance) Tolerance) (dBm) (mW) 2402 1.8 1.51 1.73 3.53 2.25 2440 1.8 1.51 1.73 3.53 2.25 2480 1.8 1.51 1.73 3.53 2.25 Report#: R-TR378-FCCIC-RFE-2 Issued: 26 Sep, 2016 Page 8 of 10 Microsoft EMC Laboratory

5 SAR Test Exclusion 5.1 FCC According to FCC KDB 447498 D01 General RF Exposure Guidance v06 (Oct 23, 2015) section 4.3.1, the 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm is defined as . , , [√f(GHz)] ≤ 3.0………….<Eq. 1> . , where • f(GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison Based on manufacturer declaration and when the minimum test separation distance is <5mm, a distance of 5mm is applied to determine SAR test exclusion. Frequency Average Average SAR Exclusion SAR Exclusion (MHz) Output Power Output Threshold using Limit (dBm) Power (mW) Eq. 1 2480 1.8 1.51 0.63 <3.0 The EUT is excluded from routine SAR evaluation measurements, since the SAR test exclusion criteria is met. 5.2 ISED For devices with a minimum separation distance of 5 mm SAR evaluation is exempt for transmitters operating with an output power < 4 mW at 2450 MHz (RSS-102 Table 1). EIRP is used to compare against the exclusion threshold. Frequency Average Average Antenna EIRP EIRP SAR (MHz) Output Output Gain (dBi) (dBm) (mW) Exclusion Power Power Limit (dBm) (mW) (mW) 2480 1.8 1.51 1.73 3.53 2.25 4 The EUT is excluded from routine SAR evaluation measurements, since the SAR test exclusion criteria is met. Report#: R-TR378-FCCIC-RFE-2 Issued: 26 Sep, 2016 Page 9 of 10 Microsoft EMC Laboratory

End of Report Report#: R-TR378-FCCIC-RFE-2 Issued: 26 Sep, 2016 Page 10 of 10 Microsoft EMC Laboratory


Document Created: 2019-10-30 16:54:53
Document Modified: 2019-10-30 16:54:53
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