Test Report

FCC ID: A4R-X1

Test Report

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FCCID_1939322

FCC 47 CFR PART 15 SUBPART B ICES-003 ISSUE 5 TEST REPORT FOR GLASS MODEL NUMBER: AVT-4 FCC ID: A4R-X1 REPORT NUMBER: 13U14955-4, REVISION A ISSUE DATE: APRIL 12, 2013 Prepared for GOOGLE INC. 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA, 94043, U.S.A Prepared by UL CCS 47173 BENICIA STREET FREMONT, CA 94538, U.S.A. TEL: (510) 771-1000 FAX: (510) 661-0888

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 Revision History Issue Rev. Date Revisions Revised By -- 4/11/13 Initial Issue F. de Anda A 04/12/13 Correction to model on cover page G. Persons Page 2 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS ................................................................................. 4 2. TEST METHODOLOGY ..................................................................................................... 5 3. FACILITIES AND ACCREDITATION ................................................................................. 5 4. CALIBRATION AND UNCERTAINTY ................................................................................ 5 4.1. MEASURING INSTRUMENT CALIBRATION .............................................................. 5 4.2. SAMPLE CALCULATION ............................................................................................ 5 4.3. MEASUREMENT UNCERTAINTY ............................................................................... 5 5. EQUIPMENT UNDER TEST ............................................................................................... 6 5.1. DESCRIPTION OF EUT .............................................................................................. 6 5.1. PRELIMINARY TEST CONFIGURATIONS.................................................................. 6 5.2. MODE(S) OF OPERATION ......................................................................................... 7 5.3. SOFTWARE AND FIRMWARE .................................................................................... 7 5.4. MODIFICATIONS ........................................................................................................ 7 5.5. WORST-CASE CONFIGURATION AND MODE .......................................................... 7 5.1. DETAILS OF TESTED SYSTEM ................................................................................. 8 6. TEST AND MEASUREMENT EQUIPMENT ......................................................................12 7. APPLICABLE LIMITS AND TEST RESULTS ...................................................................13 7.1. RADIATED EMISSIONS .............................................................................................13 7.1. AC MAINS LINE CONDUCTED EMISSIONS .............................................................25 8. SETUP PHOTOS ...............................................................................................................32 8.1. RADIATED EMISSIONS .............................................................................................32 8.2. AC MAINS LINE CONDUCTED EMISSION ................................................................35 Page 3 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 1. ATTESTATION OF TEST RESULTS COMPANY NAME: GOOGLE INC. 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW, CA, 94043, U.S.A EUT DESCRIPTION: GLASS MODEL: EVT-4 SERIAL NUMBER: ECABB131105243 DATE TESTED: MARCH 30 – APRIL 5, 2014 APPLICABLE STANDARDS STANDARD TEST RESULTS FCC PART 15 SUBPART B Pass UL CCS 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 CCS 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 CCS and all revisions are duly noted in the revisions section. Any alteration of this document not carried out by UL CCS 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, any agency of the Federal Government, or any agency of any government. Approved & Released For UL CCS By: Tested By: FRANCISCO DE ANDA MONA HUA EMC SUPERVISOR EMC ENGINEER UL CCS UL CCS Page 4 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 2. TEST METHODOLOGY The tests documented in this report were performed in accordance with ANSI C63.4-2009 and CAN/CSA-CEI/IEC CISPR 22:02 as referenced by ICES-003 Issue 5. 3. FACILITIES AND ACCREDITATION The test sites and measurement facilities used to collect data are located at 47173 Benicia Street, Fremont, California, USA. UL CCS is accredited by NVLAP, Laboratory Code 200065-0. The full scope of accreditation can be viewed at http://www.ccsemc.com. 4. CALIBRATION AND UNCERTAINTY 4.1. MEASURING INSTRUMENT CALIBRATION The measuring equipment utilized to perform the tests documented in this report has been calibrated in accordance with the manufacturer's recommendations, and is traceable to recognized national standards. 4.2. SAMPLE CALCULATION Where relevant, the following sample calculation is provided: Field Strength (dBuV/m) = Measured Voltage (dBuV) + Antenna Factor (dB/m) + Cable Loss (dB) – Preamp Gain (dB) 36.5 dBuV + 18.7 dB/m + 0.6 dB – 26.9 dB = 28.9 dBuV/m 4.3. MEASUREMENT UNCERTAINTY Where relevant, the following measurement uncertainty levels have been estimated for tests performed on the apparatus: PARAMETER UNCERTAINTY Conducted Disturbance, 0.15 to 30 MHz 3.52 dB Radiated Disturbance, 30 to 1000 MHz 4.94 dB Uncertainty figures are valid to a confidence level of 95%. Page 5 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 5. EQUIPMENT UNDER TEST 5.1. DESCRIPTION OF EUT The EUT is a mobile computing device featuring a heads-up video display. The device incorporates an 802.11 b/g 2.4 GHz WLAN and BT, BT-LE radio with an integral antenna. An integral vibrating element provides audio to the user via contact with the user’s head. The EUT is provided with an AC charger and a USB cable. When connected to a PC, the USB cable provides a path for charging and for software updates, and is not intended for any other data transfer functions. GENERAL INFORMATION Power Requirements Charger input: 100-240 VAC / 50-60 Hz, 0.25 A Charger output: 5 VDC, 1 A Frequencies generated or used by the EUT 32.768KHz, 16.369MHz, 38.4MHz, 37.4MHz and 1.0 GHz SUBASSEMBLIES The EUT was constructed using the following subassemblies: Subassembly Description Manufacturer Part Number Glass Google EVT1 Charger Google 10AG212020 USB cable N/A N/A 5.1. PRELIMINARY TEST CONFIGURATIONS The following configurations were investigated during preliminary testing: EUT Configuration Description 1 Standalone, battery operated. 2 Operating while charging with supplied charger. 3 Connected to laptop with minimum configuration. The worst-case configurations were determined to be with AC charger and connected to the laptop PC. Exploratory testing was also performed to determine worst-case orientation. Right- side up (normal wearing position) was determined to be worst case. Page 6 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 5.2. MODE(S) OF OPERATION Mode Description Normal Displaying a continuous video clip on the heads-up display with audio 5.3. SOFTWARE AND FIRMWARE The EUT driver software installed during testing was 201303251100. 5.4. MODIFICATIONS No modifications were made during testing. 5.5. WORST-CASE CONFIGURATION AND MODE The EUT was investigated as X, Y, and Z position, the Z -Orientation is the worst case orientation, so all emission tests were put in the Z-Orientation. Page 7 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 5.1. DETAILS OF TESTED SYSTEM SUPPORT EQUIPMENT & PERIPHERALS SUPPORT EQUIPMENT LIST Description Manufacturer Model S/N FCC ID Laptop PC Dell PP18L 20071776413 DoC AC Adapter Dell PA-12 M1108056-006 N/A AC Charger Google 10AG212020 N/A DoC Telephone Simulator Teltone TLs3 993 N/A Mouse Dell M-UK DEL3 OYH958 DoC I/O CABLES I/O CABLE LIST Cable Port No. of Connector Type Cable Type Cable Remarks No. identical Length ports 1 AC 2 115VAC Unshielded 1.2m NA 2 DC 1 DC Unshielded 1m NA 3 USB 1 EUT Unshielded 0.8m NA 4 USB 1 MOUSE Unshielded 1m NA 5 RJ11 1 Telephone Simulator Unshielded 1.2m NA TEST SETUP The EUT was set up as shown in the following diagrams. A video stored within the EUT was played on the heads-up display with audio running to the vibrating element. Page 8 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 SETUP DIAGRAMS, CONFIGURATION 1 Battery Operated EUT AC Mains Page 9 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 CONFIGURATION 2 With AC charger EUT 1 Charger AC Mains Page 10 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 CONFIGURATION 3 With Laptop minimum configuration MOUSE EUT 4 3 5 Laptop Telephone Simulator 2 AC Adapter 1 1 AC MAIN Page 11 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 6. TEST AND MEASUREMENT EQUIPMENT The following test and measurement equipment was utilized for the tests documented in this report: Test Equipment List Description Manufacturer Model Asset Cal Due Spectrum Analyzer, 44 GHz Agilent / HP E4446A C00986 08/22/13 Antenna, Bilog, 30MHz-1 GHz Sunol Sciences JB1 C01011 04/23/13 Preamplifier, 1-26.5GHz Agilent / HP 8449B C01063 10/22/13 Preamplifier, 1300 MHz Agilent / HP 8447D C00580 11/11/13 EMI Test Receiver, 30 MHz R&S ESHS 20 N02396 08/08/13 LISN, 30 MHz FCC 50/250-25-2 C00626 01/14/14 Page 12 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 7. APPLICABLE LIMITS AND TEST RESULTS 7.1. RADIATED EMISSIONS TEST PROCEDURE ANSI C63.4 The frequency range was investigated from 30 MHz to 2000 MHz. LIMIT §15.109 (a) Except for Class A digital devices, the field strength of radiated emissions from unintentional radiators at a distance of 3 meters shall not exceed the following values: Limits for radiated disturbance of Class B ITE at measuring distance of 3 m Frequency range Limits (MHz) (dBµV/m) 30 to 88 40 (QP) 88 to 216 43.5 (QP) 216 to 960 46 (QP) Above 960 MHz 54 (AV), 74 (PK) Note: The lower limit shall apply at the transition frequency. Page 13 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 RESULTS RADIATED EMISSIONS 30 TO 1000 MHz (STAND ALONE) CONFIGURATION 1 HORIZONTAL PLOT Page 14 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 VERTICAL PLOT Page 15 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 WORST EMISSIONS SUMMARY DATA - STAND ALONE Project :13U14955 Company Name:Google Model / Config:Stand Alone Mode:Normal Test By:Mona Hua Horizontal 30 - 1000MHz Test Meter Antenna Preamp/ E-Fields Marker Frequency Reading Factor Cable dB(uVolts/ [dBuV/m] - Margin Height No. (MHz) (dBuV) Detector dB/m loss [dB] meter) QPk (dB) [cm] Polarity 1 55.6857 36.28 PK 6.9 -28.8 14.38 40 -25.62 200 Horz 2 69.9825 36.54 PK 7.9 -28.7 15.74 40 -24.26 100 Horz 3 132.5006 31.22 PK 13.6 -28 16.82 43.52 -26.7 400 Horz 4 646.9423 29.57 PK 19.8 -25.8 23.57 46.02 -22.45 300 Horz Vertical 30 - 1000MHz Test Meter Antenna Preamp/ E-Fields Marker Frequency Reading Factor Cable dB(uVolts/ [dBuV/m] - Margin Height No. (MHz) (dBuV) Detector dB/m loss [dB] meter) QPk (dB) [cm] Polarity 5 70.2248 34.26 PK 7.9 -28.7 13.46 40 -26.54 200 Vert 6 198.8958 35.5 PK 12.3 -27.3 20.5 43.52 -23.02 200 Vert 7 800.0874 38.92 PK 21.2 -24.8 35.32 46.02 -10.7 200 Vert Page 16 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 RADIATED EMISSIONS 1 TO 2 GHz Page 17 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 CONFIGURATION 2 HORIZONTAL PLOT Page 18 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 VERTICAL PLOT Page 19 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 WORST EMISSIONS CONFIGURATION 2 SUMMARY DATA for 30 to 1000 MHz – EUT with charger Page 20 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 CONFIGURATION 3 HORIZONTAL PLOT Page 21 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 VERTICAL PLOT Page 22 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 WORST EMISSIONS SUMMARY DATA for 30 to 1000 MHz – EUT with Laptop Page 23 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 RADIATED EMISSIONS 1 TO 2 GHz Page 24 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 7.1. AC MAINS LINE CONDUCTED EMISSIONS TEST PROCEDURE ANSI C63.4 LIMIT §15.107 (a) Except for Class A digital devices, for equipment that is designed to be connected to the public utility (AC) power line, the radio frequency voltage that is conducted back onto the AC power line on any frequency or frequencies within the band 150 kHz to 30 MHz shall not exceed the limits in the following table, as measured using a 50 μH/50 ohms line impedance stabilization network (LISN). Compliance with the provisions of this paragraph shall be based on the measurement of the radio frequency voltage between each power line and ground at the power terminal. The lower limit applies at the band edges. Frequency range Limits (dBµV) (MHz) Quasi-peak Average 0.15 to 0.50 66 to 56 56 to 46 0.50 to 5 56 46 5 to 30 60 50 Notes: 1. The lower limit shall apply at the transition frequencies 2. The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz. Page 25 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 RESULTS CONFIGURATION 2 LINE 1 Page 26 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 LINE 2 Page 27 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 6 WORST EMISSIONS SUMMARY DATA – EUT with charger Page 28 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 CONFIGURATION 3 LINE 1 RESULTS Page 29 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 LINE 2 RESULTS Page 30 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.

REPORT NO: 13U14955-4A DATE: APRIL 12, 2013 EUT: GLASS FCC ID: A4R-X1 6 WORST EMISSIONS SUMMARY DATA – EUT with Laptop Page 31 of 36 UL CCS FORM NO: CCSUP4701G 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL CCS.


Document Created: 2013-04-12 16:02:34
Document Modified: 2013-04-12 16:02:34
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