Test Report DFS

FCC ID: C3K1793

Test Report

Download: PDF
FCCID_3592330

RADIO TEST REPORT For MODEL NO.: 1793 FCC ID: C3K1793 IC ID: 3048A-1793 Test Report No. R-TR447-FCCISED-DFS-1 Issue Date: Sept 22, 2017 FCC CFR47 Part 15 Subpart E Innovation, Science and Economic Development Canada RSS-247 Issue 2 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 Rev 2.0

FCC ID: C3K1793 IC ID: 3048A-1793 1 Record of Revisions Revision Date Section Page(s) Summary of Changes Author/Revised By: 1.0 09/22/2017 All All Version 1.0 Andy Shen Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 2 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 Table of Contents 1 Record of Revisions ............................................................................................................... 2 2 Deviations from Standards .................................................................................................... 6 3 Facilities and Accreditations .................................................................................................. 6 3.1 Test Facility .................................................................................................................... 6 3.2 Accreditations ................................................................................................................. 6 4 Product Description ............................................................................................................... 7 4.1 Test Configurations ........................................................................................................ 8 4.2 Environmental Conditions ............................................................................................... 8 4.3 Antenna Requirements ................................................................................................... 8 4.4 Equipment Modifications ................................................................................................ 9 4.5 Dates of Testing ............................................................................................................. 9 5 Test Results Summary ........................................................................................................ 10 6 Test Equipment List ............................................................................................................. 11 7 Test Method ......................................................................................................................... 12 7.1 Antenna port conducted measurements ....................................................................... 12 7.2 Test Setup Diagrams .................................................................................................... 12 7.3 Radar Waveform Verification ........................................................................................ 13 7.4 Channel Loading .......................................................................................................... 18 7.4.1 Test Method .......................................................................................................... 18 8 Test Results ......................................................................................................................... 20 8.1 Channel Move Time ..................................................................................................... 20 8.1.1 Test Requirement: ................................................................................................. 20 8.1.2 Test Method: ......................................................................................................... 20 8.1.3 Limits: .................................................................................................................... 20 8.1.4 Test Results: ......................................................................................................... 20 8.1.5 Test Data ............................................................................................................... 20 8.2 Channel Closing Transmission Time ............................................................................ 23 8.2.1 Test Requirement: ................................................................................................. 23 8.2.2 Test Method: ......................................................................................................... 23 8.2.3 Limits: .................................................................................................................... 23 8.2.4 Test Results: ......................................................................................................... 23 8.2.5 Test Data ............................................................................................................... 23 8.3 Non-Occupancy Period ................................................................................................ 26 Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 3 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 8.3.1 Test Requirement: ................................................................................................. 26 8.3.2 Test Method: ......................................................................................................... 26 8.3.3 Limits: .................................................................................................................... 26 8.3.4 Test Results: ......................................................................................................... 26 8.3.5 Test Data: .............................................................................................................. 26 Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 4 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 Test Report Attestation Microsoft Corporation Model: 1793 FCC ID: C3K1793 IC ID: 3048A-1793 Applicable Standards Specification Test Result FCC 47CFR Rule Parts 15.407 (DFS) Pass Innovation, Science and Economic Development Pass Canada RSS-247 Issue 2 (DFS) 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 is prohibited and requires prior written approval of Microsoft EMC Laboratory. Written By: Andy Shen Reviewed/ Issued By: Sajay Jose Radio Test Engineer EMC/RF Compliance Lab Manager Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 5 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 2 Deviations from Standards None. 3 Facilities and Accreditations 3.1 Test Facility All test 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 FCC Registration Number: US1141 IC Site Registration Numbers: 3048A-3, 3048A-4 Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 6 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 4 Product Description Company Name: Microsoft Corporation Address: One Microsoft Way City, State, Zip: Redmond, WA 98052-6399 Customer Contact: Sahithi Kandula Portable Computing Device with IEEE 802.11a/b/g/n/ac Functional Description MIMO radio supporting 20/40/80 MHz bandwidths, of the EUT: Bluetooth 4.0 radio, and an additional 802.11n SISO radio supporting 20MHz bandwidth. Model: 1793 FCC ID: C3K1793 IC ID: 3048A-1793 IEEE 802.11a/n/ac with 20MHz, 40MHz and 80MHz Signal Radio under test: Bandwidths Modulation(s): OFDM – BPSK, QPSK, 16-QAM, 64-QAM, 256-QAM EUT Classification: UNII Client Device without radar detection RF Conducted port impedance: 50 Ω in the frequency range of operation Antenna Gain Measurement N/A – Measurements were performed using conducted test Verification: methods Transmit Power Control: The EUT does not implement TPC Wireless Bridge or Mesh The device does not implement bridge or mesh modes. Capability: Power – Cycle Time: N/A. The EUT is a client device without radar detection The EUT does not detect or store information regarding Radar Waveform Information: radar waveforms Equipment Design State: Prototype/Production Equivalent (EV3B) Equipment Condition: Good RF Conducted Test Sample Top SN: 009360372757; Test Sample Details: Base SN: 061236372654 Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 7 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 4.1 Test Configurations The device was setup in normal operation and connected wirelessly to an 802.11 access point on 40 MHz bandwidth channels. The EUT supports 80 MHz bandwidths, which were excluded from measurements (based on guidance from KDB 905462 D03 v01r02). A host laptop was configured to transmit traffic by using an .MP4 video file to the EUT. Iperf was used to generate a continuous amount of traffic while the video was streamed simultaneously to meet channel loading conditions and allow for random pinging intervals and dynamically allocate the talk/listen ratio. Aeroflex PXI 3001C DFS test system was used to monitor traffic and generate radar pulses. A spectrum analyzer was used for the 30-minute non-occupancy period test. Measurements were performed on the main antenna, Chain B of the EUT. DFS signals were injected into 5 GHz Tx/Rx port B of the Master device. 4.2 Environmental Conditions Ambient air temperature of the test site was within the range of 10 °C to 40 °C (50 °F to 104 °F) unless the EUT specified testing over a different temperature range. Humidity levels were in the range of 10% to 90% relative humidity. Testing conditions were within tolerance and any deviations required from the EUT are reported. 4.3 Antenna Requirements The antennas are internal, permanently attached and there are no provisions for connection to an external antenna. Antenna Gain Chain A Chain B Frequency Band MIMO Wi-Fi Antenna Peak Main Antenna Wi-Fi Peak (MHz) Gain (dBi) Gain (dBi) UNII Band 1- 5150 to 5250 3.95 2.53 UNII Band 2a – 5250 to 5350 3.95 2.53 UNII Band 2c – 5470 to 5725 3.12 3.68 UNII Band 3 – 5725 to 5850 3.00 1.69 Simultaneous transmission on both transmit chains was observed to be the worst-case mode of operation for all test cases. Since the transmit signals are completely uncorrelated in regards to transmit power, the combined gain is calculated using the following formula as specified in KDB 662911 D01 Multiple Transmitter Output v02r01: Directional gain = 10log [(10G1 /10 + 10G2 /10 + … + 10GN /10)/NANT] dBi Combined Directional Antenna Gain Frequency Band Combined Directional Gain (MHz) (dBi) UNII Band 1- 5150 to 5250 3.30 UNII Band 2a – 5250 to 5350 3.30 UNII Band 2c – 5470 to 5725 3.41 UNII Band 3 – 5725 to 5850 2.39 Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 8 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 4.4 Equipment Modifications No modifications were made during testing. 4.5 Dates of Testing Testing was performed from September 11st – September 13nd, 2017. Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 9 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 5 Test Results Summary FCC CFR 47/ Limit Test Test Description ISED Rule Part Result In-Service Monitoring 15.407(h)(2)(iv) Monitor Co-channel N/A* RSS-247 [6.3] Radar Channel Availability Check 15.407 (h)(2)(ii) 60s Detection N/A* RSS-247 [6.3] Channel Move Time 15.407 (h)(2)(iii) 10s Pass RSS-247 [6.3] Channel Closing Transmission 15.407 (h)(2)(iii) 200ms + Aggregate Pass Time RSS-247 [6.3] 60ms over remaining 10s period Non-Occupancy Period 15.407 (h)(2)(iv) 30 minutes Pass RSS-247 [6.3] *Note: The EUT is a Client device without radar detection. Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 10 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 6 Test Equipment List Calibration Manufacturer Description Model # Asset # FCC ID Due Aeroflex PXI Chassis 3001C RF-132 N/A 05/27/2018 Cisco LDK Aironet ISO AIR-AP1252AG- 102061, Cisco RF-331 N/A* Access A-K9 LDK Point 102062 Spectrum Agilent N9030A EMC-605 N/A 08/08/2018 Analyzer Murata RF Cable MXHQ87WA3000 RF-456 N/A N/A* Murata RF Cable MXHQ87WA3000 RF-588 N/A N/A* Rosenberger RF Cable L72-449-915 EMC-154 N/A N/A* MegaPhase RF Cable L72-450-915 EMC-312 N/A N/A* Pasternack RF-Cable PE304-16 RF-620 N/A N/A* Pasternack RF-Cable PE302-48 RF-659 N/A N/A* 3dB N/A N/A* Pasternack 7087-3 RF-438 Attenuator 3dB N/A N/A* Pasternack 7087-3 RF-337 Attenuator 30dB N/A N/A* Pasternack 7092-30 RF-149 Attenuator 20dB N/A N/A* Pasternack PE7087-20 RF-129 Attenuator 10dB N/A N/A* Pasternack PE7087-10 RF-557 Attenuator RF N/A N/A* L-Com SC5802N RF-048 Combiner RF N/A N/A* L-Com SC5802N RF-049 Combiner Madge Tech THP Monitor PRHTemp2000 EMC-680 N/A 10/25/2017 Note: Equipment with Calibration Due Date of “N/A*” are functionally verified or characterized before test. Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 11 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 7 Test Method 7.1 Antenna port conducted measurements Antenna port conducted measurements were performed on a bench-top setup consisting of a spectrum analyzer, splitters/combiners (as necessary), attenuators, and pre-characterized RF cables. The Aeroflex PXI 3001C DFS test system monitored traffic and generated radar bursts. The correction factors between the EUT, support equipment, radar test generator and the spectrum analyzer are added internally in the Aeroflex test system. 7.2 Test Setup Diagrams Figure 1. Test Setup for Antenna Port Conducted Measurements Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 12 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 7.3 Radar Waveform Verification Spectrum Signal 35 dB Att. 10 dB Att. Analyzer Generator Two Way Two Way Splitter Splitter 50 Ω 50 Ω Termination Termination Figure 2. Test Setup for Conducted Measurement Radar Verification Required Min. Max Antenna Radar Device Output Output EIRP Device Gain Detection Type Power Power (dBm) (dBi) Threshold (dBm) (dBm) Level (dBm) Master CISCO -1 20 6 26 -63 AIR-AP1252AG-A-K9 Client Microsoft 13.64 15.12 3.41 18.42 N/A Model 1793 DFS Measurement Radar Type Channel Move Time 0 Channel Closing Transmission Time 0 Non-Occupancy Period 0 Rader Frequency Level Pulse Pulse width Pulse Repetition Type (MHz) (dBm) count (μs) Interval (ms) 0 5310 -63.063 18 1.00 1.428 0 5510 -63.109 18 1.00 1.428 Note: 80 MHz bandwidths were not tested, due to the lack of 80 MHz Master devices available on the market (allowed based on guidance from KDB 905462 D03 v01r02). Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 13 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 Figure 3. Radar Burst Level at -63dBm: Radar Type 0 (5310 MHz 40 MHz BW) Figure 4. Radar Pulse width: Radar Type 0 (5310 MHz 40 MHz BW) Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 14 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 Figure 5. Radar Pulse Repetition Interval: Radar Type 0 (5310 MHz 40 MHz BW) Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 15 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 Figure 6. Radar Burst Level at -63dBm: Radar Type 0 (5510 MHz 40 MHz BW) Figure 7. Radar Pulse width: Radar Type 0 (5510 MHz 40 MHz BW) Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 16 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 Figure 8. Radar Pulse Repetition Interval: Radar Type 0 (5510 MHz 40 MHz BW) Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 17 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 7.4 Channel Loading 7.4.1 Test Method Channel Loading measurements were taken with a spectrum analyzer. CSV files were generated, and Channel Loading was calculated using that measured data. Channel Loading was measured to be > 17%. Channel Loading is calculated using the following formula: % 100 Frequency Signal Total On Time On Time + Off Channel (MHz) Bandwidth (ms) Time (ms) Loading (MHz) (%) 5310 40 0.626 100 62.6 5510 40 0.674 100 67.4 Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 18 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 5310MHz Channel Loading 0 0 0.02 0.04 0.06 0.08 0.1 0.12 ‐10 ‐20 ‐30 Level (dBm) ‐40 ‐50 ‐60 ‐70 ‐80 ‐90 Time (s) Figure 9. Channel Loading (5310 MHz 40 MHz BW) 5510MHz Channel Loading 0 ‐10 0 0.02 0.04 0.06 0.08 0.1 0.12 ‐20 Level (dBm) ‐30 ‐40 ‐50 ‐60 ‐70 ‐80 Time (s) Series1 Figure 10. Channel Loading (5510 MHz 40 MHz BW) Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 19 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 8 Test Results 8.1 Channel Move Time 8.1.1 Test Requirement: FCC CFR 47 Rule Part 15.407 (h)(2)(iv) ISED Canada RSS-247 [6.3] 8.1.2 Test Method: Measurements were performed according to the procedures defined in KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02. 8.1.3 Limits: After a radar signal is detected, the device shall cease all transmissions on the operating channel within 10 seconds. 8.1.4 Test Results: Pass. The EUT ceased transmission on the channel within 200 ms and there was less than an aggregate of 60ms transmission time in a 10s period. 8.1.5 Test Data 8.1.5.1 Channel Move Time Frequency Signal Channel Move Time Limit (s) Result (MHz) Bandwidth (s) (MHz) 5310 40 0.638 10 Pass 5510 40 0.614 10 Pass Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 20 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 Figure 11. Channel Move Time 5310 MHz Radar Master Device Traffic Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 21 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 Figure 12. Channel Move Time 5510 MHz Master Device Traffic Radar Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 22 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 8.2 Channel Closing Transmission Time 8.2.1 Test Requirement: FCC CFR 47 Rule Part 15.407 (h)(2)(iii) ISED Canada RSS-247 [6.3] 8.2.2 Test Method: Measurements were performed according to the procedures defined in KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02. 8.2.3 Limits: After the radar burst has been applied, the EUT shall cease normal transmission on the channel within 200 ms starting at the beginning of the channel move time. Control signaling required to facilitate a channel move (an aggregate of 60 ms) over the remaining 10-second period of the channel move time is permissible. 8.2.4 Test Results: Pass. The EUT ceased transmission on the channel within the allotted time. 8.2.5 Test Data Channel Channel Closing Carrier Channel Closing Transmission Time Limit + Frequency Bandwidth Transmission Aggregate Control Signaling Result (MHz) (MHz) Time Time Limit (ms) (ms) 5310 40 23 200 +60 Pass 5510 40 28 200 +60 Pass Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 23 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 EUT Radar Burst Master Control Transmission Level Signaling Figure 13. Channel Closing Transmission Time (5310 MHz) Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 24 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 EUT Radar Burst Master Control Transmission Level Signaling Figure 14. Channel Closing Transmission Time (5510 MHz) Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 25 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 8.3 Non-Occupancy Period 8.3.1 Test Requirement: FCC CFR 47 Rule Part 15.407 (h)(2)(iv) ISED Canada RSS-247 [6.3] 8.3.2 Test Method: Measurements were performed according to the procedures defined in KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02. 8.3.3 Limits: A channel that has been flagged as containing a radar system, either by a channel availability check or in-service monitoring, is subject to a non-occupancy period of at least 30 minutes. The non-occupancy period starts at the time when the radar system is detected. 8.3.4 Test Results: Pass. After radar was detected by the master device, the EUT did not transmit on the tested channel for at least 30 minutes. 8.3.5 Test Data: Plot shown for 2000 second sweep time. Figure 15. 30 Minute Non-Occupancy Period (5270 MHz) Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 26 of 27 Microsoft EMC Laboratory

FCC ID: C3K1793 IC ID: 3048A-1793 End of Report Report#: R-TR447-FCCISED-DFS-1 Issued: September 22, 2017 Page 27 of 27 Microsoft EMC Laboratory


Document Created: 2017-09-22 15:29:23
Document Modified: 2017-09-22 15:29:23
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC