Test Report

FCC ID: SK9WF111

Test Report

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FCCID_3857012

Certification Test Report FCC ID: SK9WF111 FCC Rule Part: 15.247 Report Number: AT72135742-2P2 Manufacturer: Itron, Inc. Model: WF111 Test Begin Date: April 09, 2018 Test End Date: April 18, 2018 Report Issue Date: May 18, 2018 FOR THE SCOPE OF ACCREDITATION UNDER Certificate Number: AT-2021 This report must not be used by the client to claim product certification, approval, or endorsement by ANAB, NIST, or any agency of the Federal Government. Prepared by: Reviewed by: Jeremy Pickens Ryan McGann Senior Wireless Engineer Senior Engineer TÜV SÜD America Inc. TÜV SÜD America Inc. This test report shall not be reproduced except in full. This report may be reproduced in part with prior written consent of TÜV SÜD America Inc. The results contained in this report are representative of the sample(s) submitted for evaluation. This report contains 16 pages 5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598

TABLE OF CONTENTS 1 GENERAL ............................................................................................................................................ 3 1.1 PURPOSE.......................................................................................................................................... 3 1.2 PRODUCT DESCRIPTION ................................................................................................................... 3 1.3 TEST METHODOLOGY AND CONSIDERATIONS ................................................................................. 4 2 TEST FACILITIES .............................................................................................................................. 5 2.1 LOCATION ....................................................................................................................................... 5 2.2 LABORATORY ACCREDITATIONS/RECOGNITIONS/CERTIFICATIONS ................................................ 5 2.3 RADIATED EMISSIONS TEST SITE DESCRIPTION .............................................................................. 6 2.3.1 Semi-Anechoic Chamber Test Site .......................................................................................... 6 2.3.2 Open Area Tests Site (OATS) ................................................................................................. 7 2.4 CONDUCTED EMISSIONS TEST SITE DESCRIPTION ........................................................................... 8 3 APPLICABLE STANDARD REFERENCES.................................................................................... 8 4 LIST OF TEST EQUIPMENT ............................................................................................................ 9 5 SUPPORT EQUIPMENT ...................................................................................................................10 6 EQUIPMENT UNDER TEST SETUP BLOCK DIAGRAM ..........................................................10 7 SUMMARY OF TESTS ......................................................................................................................11 7.1 ANTENNA REQUIREMENT – FCC: SECTION 15.203 ........................................................................11 7.2 POWER LINE CONDUCTED EMISSIONS – FCC: SECTION 15.207; ISED CANADA: RSS-GEN 8.8 .....11 7.2.1 Measurement Procedure ........................................................................................................11 7.2.2 Measurement Results .............................................................................................................11 7.3 RADIATED SPURIOUS EMISSIONS – FCC: SECTIONS 15.205, 15.209; ISED CANADA: RSS-GEN 8.9/8.10 ......................................................................................................................................................13 7.3.1 Measurement Procedure ........................................................................................................13 7.3.2 Measurement Results .............................................................................................................13 7.3.3 Sample Calculation: ..............................................................................................................15 8 ESTIMATION OF MEASUREMENT UNCERTAINTY ...............................................................16 9 CONCLUSION ....................................................................................................................................16 5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598

Model: WF111 FCC ID: SK9WF111 1 GENERAL 1.1 Purpose The purpose of this report is to demonstrate compliance with Part 15 Subpart C of the FCC’s Code of Federal Regulations for a Class II Permissive Change. The purpose of this Class II Permissive Change is to add a new antenna and host combination. 1.2 Product description The Itron WF111 is a communications module which includes an 802.11b/g/n(HT20) transmitter operating in the 2400-2483.5MHz band. The module operates on DC voltage which is supplied by the host device. This Class II Permissive Change addresses the WF111 (FCC ID: SK9F111) integrated into the Itron, Inc. Socket Based Router (SBR) with new monopole antenna configuration. This test report documents the compliance of the 2.4 GHz transceiver. Technical Details: Detail Description Frequency Range 2412 – 2462MHz Number of Channels 11 Modulation Format 802.11 b/g/n(HT20) 802.11b: 1,2,5.5,11 Mbps Data Rates (kbps) 802.11g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps 802.11n: 7.2, 14.4, 21.7, 28.9, 43.3, 57.8, 65.5, 72.2 Mbps Operating Voltage 3.3Vdc (Supplied by host) WF121-N: 2.14 dBi Antenna Type(s) / Gain(s) Taoglas GW26.0112 Monopole (new): 1.8 dBi Manufacturer Information: Itron, Inc. 313 N Hwy 11 West Union, SC 29696 EUT Serial Numbers: FCC2 (Host S/N) Test Sample Condition: The test samples were provided in good working order with no visible defects. Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 3

Model: WF111 FCC ID: SK9WF111 1.3 Test Methodology and Considerations All modes of operation, including all available data rates, were evaluated for each mode. The data presented in this report represents the worst case where applicable. The purpose of this Class II Permissive Change is to add a new antenna and host to the originally certified module, therefore this evaluation is limited to Radiated Emissions testing and AC Power Line Conducted Emissions testing only For radiated emissions, the EUT was evaluated in the Socket Based Router (SBR). The data rates evaluated were 802.11b 1Mbps, 802.11g 6Mbps, and 802.11n MCS0 (7.2Mbps). For AC power line conducted emissions the EUT was evaluated installed in the Socket Based Router (SBR) powered from 240Vac, 60Hz. Radiated inter-modulation testing was performed for all combinations of simultaneous transmission and found to comply. Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 4

Model: WF111 FCC ID: SK9WF111 2 TEST FACILITIES 2.1 Location The radiated and conducted emissions test sites are located at the following address: TÜV SÜD America, Inc. 5015 B.U. Bowman Drive Buford, GA 30518 Phone: (770) 831-8048 Fax: (770) 831-8598 2.2 Laboratory Accreditations/Recognitions/Certifications TÜV SÜD America, Inc. is accredited to ISO/IEC 17025 by the ANSI-ASQ National Accreditation Board/ANAB accreditation program, and has been issued certificate number AT-2021 in recognition of this accreditation. Unless otherwise specified, all tests methods described within this report are covered under the ISO/IEC 17025 scope of accreditation. The Semi-Anechoic Chamber Test Site, Open Area Test Site (OATS) and Conducted Emissions Site have been fully described, submitted to, and accepted by the FCC, Innovation, Science, and Economic Development Canada and the Japanese Voluntary Control Council for Interference by information technology equipment. FCC Registration Number: 391271 Innovation, Science, and Economic Development Canada Lab Code: 23597 VCCI Member Number: 1831 • VCCI OATS Registration Number R-1526 • VCCI Conducted Emissions Site Registration Number: C-1608 Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 5

Model: WF111 FCC ID: SK9WF111 2.3 Radiated Emissions Test Site Description 2.3.1 Semi-Anechoic Chamber Test Site The Semi-Anechoic Chamber Test Site consists of a 20’ x 30’ x 18’ shielded enclosure. The chamber is lined with Toyo Ferrite Grid Absorber, model number FFG-1000. The ferrite tile grid is 101 x 101 x 19mm thick and weighs approximately 550 grams. These tiles are mounted on steel panels and installed directly on the inner walls of the chamber. The turntable is 150cm in diameter and is located 160cm from the back wall of the chamber. The chamber is grounded via 1 – 8’ copper ground rod, installed at the center of the back wall, it is bound to the ground plane using 3/4” stainless steel braided cable. The turntable is all steel, flush mounted table installed in an all steel frame. The table is remotely operated from inside the control room located 25’ from the range. The turntable is electrically bonded to the surrounding ground plane via steel fingers installed on the edge of the turn table. The steel fingers make constant contact with the ground plane during operation. Behind the turntable is a 3’ x 6’ x 4’ deep shielded pit used for support equipment if necessary. The pit is equipped with 1 – 4” PVC chases from the turntable to the pit that allow for cabling to the EUT if necessary. The underside of the turntable can be accessed from the pit so cables can be supplied to the EUT from the pit. A diagram of the Semi-Anechoic Chamber Test Site is shown in Figure 2.3-1 below: 3 Meters 5 Feet Diameter 20 Feet 30 Feet Figure 2.3-1: Semi-Anechoic Chamber Test Site Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 6

Model: WF111 FCC ID: SK9WF111 2.3.2 Open Area Tests Site (OATS) The open area test site consists of a 40’ x 66’ concrete pad covered with a perforated electro- plated galvanized sheet metal. The perforations in the sheet metal are 1/8” holes that are staggered every 3/16”. The individual sheets are placed to overlap each other by 1/4” and are riveted together to provide a continuous seam. Rivets are spaced every 3” in a 3 x 20 meter perimeter around the antenna mast and EUT area. Rivets in the remaining area are spaced as necessary to properly secure the ground plane and maintain the electrical continuity. The entire ground plane extends 12’ beyond the turntable edge and 16’ beyond the antenna mast when set to a 10 meter measurement distance. The ground plane is grounded via 4 – 8’ copper ground rods, each installed at a corner of the ground plane and bound to the ground plane using 3/4” stainless steel braided cable. The turntable is an all aluminum 10’ flush mounted table installed in an all aluminum frame. The table is remotely operated from inside the control room located 40’ from the range. The turntable is electrically bonded to the surrounding ground plane via steel fingers installed on the edge of the turn table. The steel fingers make constant contact with the ground plane during operation. Adjacent to the turntable is a 7’ x 7’ square and 4’ deep concrete pit used for support equipment if necessary. The pit is equipped with 5 – 4” PVC chases from the pit to the control room that allow for cabling to the EUT if necessary. The underside of the turntable can be accessed from the pit so cables can be supplied to the EUT from the pit. The pit is covered with 2 sheets of 1/4” diamond style re-enforced steel sheets. The sheets are painted to match the perforated steel ground plane; however the underside edges have been masked off to maintain the electrical continuity of the ground plane. All reflecting objects are located outside of the ellipse referenced in ANSI C63.10. A diagram of the Open Area Test Site is shown in Figure 2.3-2 below: 10Meter 3 Meters 40Feet 7x7x4 Pit 66 Feet Figure 2.3-2: Open Area Test Site Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 7

Model: WF111 FCC ID: SK9WF111 2.4 Conducted Emissions Test Site Description The AC mains conducted EMI site is located in the main EMC lab. It consists of an 8’ x 8’ solid aluminum horizontal ground reference plane (GRP) bonded every 3” to an 8’ X 8’ vertical ground plane. The site is of sufficient size to test table top and floor standing equipment in accordance with ANSI C63.10. A diagram of the room is shown below in figure 2.4-1: Vertical Ground Plane (8’ x 12’) Non-Conductive EUT Table (1m x 1.5m x .8m) .4 Meters .8 Meters Horizontal Ground Plane (8’ x 12’) LISN Figure 2.4-1: AC Mains Conducted EMI Site 3 APPLICABLE STANDARD REFERENCES The following standards were used:  ANSI C63.10-2013: American National Standard of Procedures for Compliance Testing of Unlicensed Wireless Devices  US Code of Federal Regulations (CFR): Title 47, Part 2, Subpart J: Equipment Authorization Procedures, 2018  US Code of Federal Regulations (CFR): Title 47, Part 15, Subpart C: Radio Frequency Devices, Intentional Radiators, 2018  ISED Canada Radio Standards Specification: RSS-247 – Digital Transmission Systems (DTSs), Frequency Hopping Systems (FHSs) and License-Exempt Local Area Network (LE-LAN) Devices, Issue 2, Feb 2017  ISED Canada Radio Standards Specification: RSS-GEN – General Requirements and Information for the Certification of Radiocommunication Equipment, Issue 4, Nov 2014. Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 8

Model: WF111 FCC ID: SK9WF111 4 LIST OF TEST EQUIPMENT The calibration interval of test equipment is annually or the manufacturer’s recommendations. Where the calibration interval deviates from the annual cycle based on the instrument manufacturer’s recommendations, it shall be stated below. Table 4-1: Test Equipment Calibration AssetID Manufacturer Model # Equipment Type Serial # Last Calibration Date Due Date 30 Spectrum Technologies DRH-0118 1-18GHz Horn Antenna 970102 05/09/2017 05/09/2019 40 EMCO 3104 Bicon Antenna 3211 06/08/2016 06/08/2018 Chamber EMI Cable Consisits of cables 485, 167 ACS Set 242, 204 and 10 167 09/29/2017 09/29/2018 168 Hewlett Packard 11947A Transient Pulse Limiter 44829 01/22/2018 01/22/2019 213 TEC PA 102 Amplifier 44927 07/24/2017 07/24/2018 324 ACS Belden Conducted EMI Cable 8214 04/05/2018 04/05/2019 334 Rohde&Schwarz 3160-09 HF Antenna - 18-26.5GHz 45576 10/07/2017 10/07/2018 335 Suhner SF-102A Cable (40GHZ) 882/2A 07/11/2017 07/11/2018 338 Hewlett Packard 8449B High Frequency Pre-Amp 3008A01111 07/11/2017 07/11/2019 345 Suhner Sucoflex 102A Cable 42(GHZ) 1077/2A 07/10/2017 07/10/2018 412 Electro Metrics LPA-25 Log Periodic Antenna 1241 08/08/2016 08/08/2018 SMS-200AW-72.0- 422 Florida RF SMR Cable 805 11/27/2017 11/27/2018 432 Microwave Circuits H3G020G4 Highpass Filter 264066 05/13/2017 05/13/2018 SMRE-200W-12.0- 616 Florida RF Cables SMRE High Frequency Cable N/A 10/07/2017 10/07/2018 SMS-290AW-480.0- 676 Florida RF Labs SMS Cable MFR2Y194 01/08/2018 01/08/2019 EMI Receiver; RF Input 50ohm; 10Hz-50MHz; 813 PMM 9010 10Hz-30MHz 697WW30606 02/12/2018 02/12/2019 819 Rohde & Schwarz USA, Inc. ESR26 EMI Test Receiver 101345 10/31/2017 10/31/2018 3010 Rohde & Schwarz ENV216 Two-Line V-Network 3010 07/11/2017 07/11/2018 NCR = No Calibration Required NOTE: All test equipment was used only during active calibration cycles. Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 9

Model: WF111 FCC ID: SK9WF111 5 SUPPORT EQUIPMENT Table 5-1: Support Equipment – Radiated Emissions Item Equipment Type Manufacturer Model/Part Serial Number Number 1 Host Device Itron, Inc. SBR FCC2 Table 5-2: Cable Description – Radiated Emissions Cable Cable Type Length Shield Termination A AC Power Cable 1.75 m No Host Device to AC Mains 6 EQUIPMENT UNDER TEST SETUP BLOCK DIAGRAM EUT 1 A AC Mains Figure 6-1: Test Setup Block Diagram Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 10

Model: WF111 FCC ID: SK9WF111 7 SUMMARY OF TESTS Along with the tabular data shown below, plots were taken of all signals deemed important enough to document. 7.1 Antenna Requirement – FCC: Section 15.203 When installed in the Itron, Inc. Socket Based Router (SBR) the EUT utilizes an internal Taoglas monopole antenna with a peak gain of 1.8dBi in the 2.4GHz ISM band. The antenna employs a reverse polarity SMA connector. The EUT and host device require professional installation, therefore meeting the requirements of Section 15.203. 7.2 Power Line Conducted Emissions – FCC: Section 15.207; ISED Canada: RSS-Gen 8.8 7.2.1 Measurement Procedure Conducted emissions were performed from 150 kHz to 30 MHz with the spectrum analyzer’s resolution bandwidth set to 9 kHz and the video bandwidth set to 30 kHz. The calculation for the conducted emissions is as follows: Corrected Reading = Analyzer Reading + LISN Loss + Cable Loss Margin = Corrected Reading - Applicable Limit 7.2.2 Measurement Results Performed by: Arthur Sumner Table 7.2.2-1: Conducted EMI Results – Line 1 Corrected Reading Limit Margin Frequency (MHz) Quasi- Average Quasi-Peak Average Quasi-Peak Average Correction Peak (dBuV) (dBuV) (dBuV) (dB) (dB) (dB) (dBuV) 0.162 45.04 34.56 65.36 55.36 -20.32 -20.8 9.58 0.226 43.39 33.84 62.6 52.6 -19.21 -18.76 9.58 0.394 41.49 25.76 57.98 47.98 -16.49 -22.22 9.59 0.41 51.01 46.83 57.65 47.65 -6.64 -0.82 9.59 0.418 50.56 40.2 57.49 47.49 -6.93 -7.29 9.59 0.43 47.49 31.53 57.25 47.25 -9.76 -15.72 9.59 0.694 48.13 40.5 56 46 -7.87 -5.5 9.59 1.286 47.74 38.06 56 46 -8.26 -7.94 9.6 1.678 45.97 38.12 56 46 -10.03 -7.88 9.61 18.358 45.89 42.93 60 50 -14.11 -7.07 9.83 Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 11

Model: WF111 FCC ID: SK9WF111 Table 7.2.2-2: Conducted EMI Results – Line 2 Corrected Reading Limit Margin Frequency (MHz) Quasi- Average Quasi-Peak Average Quasi-Peak Average Correction Peak (dBuV) (dBuV) (dBuV) (dB) (dB) (dB) (dBuV) 0.158 47.55 25.89 65.57 55.57 -18.02 -29.68 9.58 0.17 46.78 22.78 64.96 54.96 -18.18 -32.18 9.58 0.182 45.09 31.8 64.39 54.39 -19.3 -22.59 9.58 0.198 43.76 27.43 63.69 53.69 -19.93 -26.26 9.58 0.23 43.57 36.2 62.45 52.45 -18.88 -16.25 9.58 0.282 41.1 35.86 60.76 50.76 -19.66 -14.9 9.59 0.402 46.91 35.46 57.81 47.81 -10.9 -12.35 9.59 0.434 45.47 30.58 57.18 47.18 -11.71 -16.6 9.59 0.454 49.12 42.73 56.8 46.8 -7.68 -4.07 9.59 18.51 44.58 41.59 60 50 -15.42 -8.41 9.86 Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 12

Model: WF111 FCC ID: SK9WF111 7.3 Radiated Spurious Emissions – FCC: Sections 15.205, 15.209; ISED Canada: RSS-Gen 8.9/8.10 7.3.1 Measurement Procedure Radiated emissions tests were made over the frequency range of 30 MHz to 25 GHz, 10 times the highest fundamental frequency. The EUT was rotated through 360° and the receive antenna height was varied from 1 meter to 4 meters so that the maximum radiated emissions level would be detected. For frequencies below 1000 MHz, quasi-peak measurements were made using a resolution bandwidth RBW of 120 kHz and a video bandwidth VBW of 300 kHz. For frequencies above 1000 MHz, peak and average measurements were made with RBW and VBW of 1 MHz and 3 MHz respectively. The EUT was caused to generate a continuous modulated carrier at each of the low, middle, and high channels. Each emission found to be in a restricted band was compared to the applicable radiated emission limits. 7.3.2 Measurement Results Performed by: Tyler Leeson, Arthur Sumner Table 7.3.2-1: Radiated Spurious Emissions Tabulated Data – 802.11b Level Antenna Correction Corrected Level Limit Margin Frequency (dBuV) Polarity Factors (dBuV/m) (dBuV/m) (dB) (MHz) pk Qpk/Avg (H/V) (dB) pk Qpk/Avg pk Qpk/Avg pk Qpk/Avg Low Channel 2390 72.37 43.81 H -4.58 67.79 39.23 74.0 54.0 6.2 14.8 2390 71.43 43.07 V -4.58 66.85 38.49 74.0 54.0 7.1 15.5 4824 47.64 34.52 H 3.64 51.28 38.16 74.0 54.0 22.7 15.8 4824 48.30 36.21 V 3.64 51.94 39.85 74.0 54.0 22.1 14.2 Middle Channel 4874 47.96 36.04 H 3.82 51.78 39.86 74.0 54.0 22.2 14.1 4874 47.72 35.46 V 3.82 51.54 39.28 74.0 54.0 22.5 14.7 High Channel 2483.5 70.14 41.46 H -4.15 65.99 37.31 74.0 54.0 8.0 16.7 2483.5 68.35 40.13 V -4.15 64.20 35.98 74.0 54.0 9.8 18.0 4924 47.83 35.55 H 4.00 51.83 39.55 74.0 54.0 22.2 14.4 4924 48.07 35.72 V 4.00 52.07 39.72 74.0 54.0 21.9 14.3 Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 13

Model: WF111 FCC ID: SK9WF111 Table 7.3.2-2: Radiated Spurious Emissions Tabulated Data – 802.11g Level Antenna Correction Corrected Level Limit Margin Frequency (dBuV) Polarity Factors (dBuV/m) (dBuV/m) (dB) (MHz) pk Qpk/Avg (H/V) (dB) pk Qpk/Avg pk Qpk/Avg pk Qpk/Avg Low Channel 2390 68.52 49.86 H -4.58 63.94 45.28 74.0 54.0 10.1 8.7 2390 73.42 51.76 V -4.58 68.84 47.18 74.0 54.0 5.2 6.8 4824 47.64 34.52 H 3.64 51.28 38.16 74.0 54.0 22.7 15.8 4824 48.30 36.21 V 3.64 51.94 39.85 74.0 54.0 22.1 14.2 Middle Channel 4874 46.10 32.30 H 3.82 49.92 36.12 74.0 54.0 24.1 17.9 4874 45.30 32.20 V 3.82 49.12 36.02 74.0 54.0 24.9 18.0 12185 47.60 33.90 H 16.60 64.20 50.50 83.5 63.5 19.3 13.0 12185 46.90 33.90 V 16.60 63.50 50.50 83.5 63.5 20.0 13.0 High Channel 2483.5 61.10 43.40 H -4.15 56.95 39.25 74.0 54.0 17.1 14.8 2483.5 61.30 42.80 V -4.15 57.15 38.65 74.0 54.0 16.9 15.4 4924 46.10 32.70 H 4.00 50.10 36.70 74.0 54.0 23.9 17.3 4924 46.40 32.70 V 4.00 50.40 36.70 74.0 54.0 23.6 17.3 7386 46.90 32.60 H 8.96 55.86 41.56 74.0 54.0 18.1 12.4 7386 45.90 32.60 V 8.96 54.86 41.56 74.0 54.0 19.1 12.4 12310 47.50 34.20 H 17.51 65.01 51.71 83.5 63.5 18.5 11.8 12310 47.30 34.20 V 17.51 64.81 51.71 83.5 63.5 18.7 11.8 Table 7.3.2-3: Radiated Spurious Emissions Tabulated Data – 802.11n Level Antenna Correction Corrected Level Limit Margin Frequency (dBuV) Polarity Factors (dBuV/m) (dBuV/m) (dB) (MHz) pk Qpk/Avg (H/V) (dB) pk Qpk/Avg pk Qpk/Avg pk Qpk/Avg Low Channel 2390 68.60 49.80 H -4.58 64.02 45.22 74.0 54.0 10.0 8.8 2390 65.50 47.70 V -4.58 60.92 43.12 74.0 54.0 13.1 10.9 4824 45.60 32.40 H 3.64 49.24 36.04 74.0 54.0 24.8 18.0 4824 46.10 32.40 V 3.64 49.74 36.04 74.0 54.0 24.3 18.0 12060 47.30 33.90 H 15.69 62.99 49.59 83.5 63.5 20.5 14.0 12060 46.70 33.90 V 15.69 62.39 49.59 83.5 63.5 21.1 14.0 14472 46.60 33.30 H 19.28 65.88 52.58 83.5 63.5 17.6 11.0 14472 47.00 33.30 V 19.28 66.28 52.58 83.5 63.5 17.2 11.0 Middle Channel 4874 45.30 32.10 H 3.82 49.12 35.92 74.0 54.0 24.9 18.1 4874 45.00 32.20 V 3.82 48.82 36.02 74.0 54.0 25.2 18.0 7311 46.90 32.50 H 8.94 55.84 41.44 74.0 54.0 18.2 12.6 7311 45.50 32.40 V 8.94 54.44 41.34 74.0 54.0 19.6 12.7 12185 47.80 33.90 H 16.60 64.40 50.50 83.5 63.5 19.1 13.0 12185 46.80 33.80 V 16.60 63.40 50.40 83.5 63.5 20.1 13.1 High Channel 2483.5 64.30 44.10 H -4.15 60.15 39.95 74.0 54.0 13.9 14.1 2483.5 62.20 43.10 V -4.15 58.05 38.95 74.0 54.0 16.0 15.1 4924 44.90 32.00 H 4.00 48.90 36.00 74.0 54.0 25.1 18.0 4924 45.80 32.10 V 4.00 49.80 36.10 74.0 54.0 24.2 17.9 7386 45.90 32.40 H 8.96 54.86 41.36 74.0 54.0 19.1 12.6 7386 45.30 32.40 V 8.96 54.26 41.36 74.0 54.0 19.7 12.6 12310 46.60 33.70 H 17.51 64.11 51.21 83.5 63.5 19.4 12.3 12310 46.90 33.70 V 17.51 64.41 51.21 83.5 63.5 19.1 12.3 19696 48.80 34.40 H 14.17 62.97 48.57 83.5 63.5 20.5 15.0 19696 48.20 34.30 V 14.17 62.37 48.47 83.5 63.5 21.1 15.1 Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 14

Model: WF111 FCC ID: SK9WF111 7.3.3 Sample Calculation: RC = RU + CFT Where: CFT = Total Correction Factor (AF+CA+AG)-DC (Average Measurements Only) RU = Uncorrected Reading RC = Corrected Level AF = Antenna Factor CA = Cable Attenuation AG = Amplifier Gain DC = Duty Cycle Correction Factor Example Calculation: Peak – 802.11b Corrected Level: 72.37 + -4.58 = 67.79dBuV/m Margin: 74dBuV/m – 67.79dBuV/m = 6.2dB Example Calculation: Average – 802.11b Corrected Level: 43.81 + -4.58 + 0 = 39.23dBuV Margin: 54dBuV – 39.23dBuV = 14.8dB Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 15

Model: WF111 FCC ID: SK9WF111 8 ESTIMATION OF MEASUREMENT UNCERTAINTY The expanded laboratory measurement uncertainty figures (ULab) provided below correspond to an expansion factor (coverage factor) k = 1.96 which provide confidence levels of 95%. Parameter Ulab Occupied Channel Bandwidth ± 0.009 % RF Conducted Output Power ± 0.349 dB Power Spectral Density ± 0.372 dB Antenna Port Conducted Emissions ± 1.264 dB Radiated Emissions ≤ 1 GHz ± 5.814 dB Radiated Emissions > 1 GHz ± 4.318 dB Temperature ± 0.860 °C Radio Frequency ± 2.832 x 10-8 AC Power Line Conducted Emissions ± 3.360 dB 9 CONCLUSION In the opinion of TÜV SÜD America, Inc. the WF111, implemented by Itron, Inc. meets the requirements of FCC Part 15 subpart C for the tests documented in this test report. END REPORT Report No: AT72135742-2P2 TÜV SÜD America, Inc. Page 16


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