Test Report

FCC ID: V7TW311R

Test Report

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FCCID_1153395

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R FCC PART 15.109 MEASUREMENT AND TEST REPORT FOR SHENZHEN TENDA TECHNOLOGY CO., LTD. 3F, MOSO INDUSTRIAL BUILDING, NO.1031, LIMING ROAD XILI TOWN, NANSHAN DISTRICT, SHENZHEN, CHINA FCC ID: V7TW311R Report Concerns: Equipment Type: Original Report Wireless-N Broadband Router Model: W311R Report No.: STR09088013E-3 Test/Witness Engineer: Test Date: 2009-08-04 to 2009-08-10 Issue Date: 2009-08-15 Prepared By: SEM.Test Compliance Service Co., Ltd. 3/F, Jinbao Commerce Building, Xin'an Fanshen Road, Bao'an District, Shenzhen, P.R.C. (518101) Approved & Authorized By: Jandy So / PSQ Manager Note: This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by SEM.Test Compliance Service Co., Ltd. REPORT NO.: STR09088013E-3 PAGE 1 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R TABLE OF CONTENTS 1. GENERAL INFORMATION...................................................................................................................................3 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT)...............................................................................3 1.2 TEST STANDARDS...................................................................................................................................................3 1.3 RELATED SUBMITTAL(S)/GRANT(S) .......................................................................................................................3 1.4 TEST METHODOLOGY .............................................................................................................................................4 1.5 TEST FACILITY .......................................................................................................................................................4 1.6 EUT EXERCISE SOFTWARE ....................................................................................................................................4 1.7 ACCESSORIES EQUIPMENT LIST AND DETAILS .......................................................................................................4 1.8 EUT CABLE LIST AND DETAILS .............................................................................................................................4 2. SUMMARY OF TEST RESULTS ...........................................................................................................................5 3. §15.107 (A)- CONDUCTED EMISSION .................................................................................................................6 3.1 MEASUREMENT UNCERTAINTY ..............................................................................................................................6 3.2 TEST EQUIPMENT LIST AND DETAILS .....................................................................................................................6 3.3 TEST PROCEDURE ...................................................................................................................................................6 3.4 BASIC TEST SETUP BLOCK DIAGRAM.....................................................................................................................6 3.5 ENVIRONMENTAL CONDITIONS ..............................................................................................................................7 3.6 TEST RECEIVER SETUP ...........................................................................................................................................7 3.7 SUMMARY OF TEST RESULTS/PLOTS ......................................................................................................................7 3.8 CONDUCTED EMISSIONS TEST DATA ......................................................................................................................7 4. §15.109(A)- RADIATED EMISSION ....................................................................................................................10 4.1 MEASUREMENT UNCERTAINTY ............................................................................................................................10 4.2 TEST EQUIPMENT LIST AND DETAILS ...................................................................................................................10 4.3 TEST PROCEDURE .................................................................................................................................................10 4.4 TEST RECEIVER SETUP .........................................................................................................................................11 4.5 CORRECTED AMPLITUDE & MARGIN CALCULATION ............................................................................................11 4.6 ENVIRONMENTAL CONDITIONS ............................................................................................................................11 4.7 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................11 REPORT NO.: STR09088013E-3 PAGE 2 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R 1. GENERAL INFORMATION 1.1 Product Description for Equipment Under Test (EUT) Client Information Applicant: SHENZHEN TENDA TECHNOLOGY CO., LTD. Address of applicant: 3F, MOSO INDUSTRIAL BUILDING, NO.1301, LIMING ROAD XILI TOWN, NANSHAN DISTRICT, SHENZHEN, CHINA. Manufacturer: SHENZHEN TENDA TECHNOLOGY CO., LTD. Address of manufacturer: 3F, MOSO INDUSTRIAL BUILDING, NO.1301, LIMING ROAD XILI TOWN, NANSHAN DISTRICT, SHENZHEN, CHINA. General Description of E.U.T Items Description EUT Description: Wireless-N Broadband Router Trade Name: Tenda Model No.: W311R Adding Model: / Rated Voltage: DC 9V adapter Packaging Size: 16.1x10.2x3.3 cm For more information refer to the circuit diagram form and the user’s manual. The test data is gathered from a production sample, provided by the manufacturer. 1.2 Test Standards The following report is prepared on behalf of the SHENZHEN TENDA TECHNOLOGY CO., LTD. in accordance with Part 2, Subpart J, and Part 15, Subparts A and B of the Federal Communication Commissions rules. The objective is to determine compliance with FCC Part 15.107, and 15.109 rules. Maintenance of compliance is the responsibility of the manufacturer. Any modification of the product, which results in lowering the emission/immunity, should be checked to ensure compliance has been maintained. 1.3 Related Submittal(s)/Grant(s) No Related Submittal(s). REPORT NO.: STR09088013E-3 PAGE 3 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R 1.4 Test Methodology All measurements contained in this report were conducted with ANSI C63.4-2003, American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the range of 9 kHz to 40 GHz. The equipment under test (EUT) was configured to measure its highest possible susceptibility against the tested phenomena. The test modes were adapted accordingly in reference to the Operating Instructions. 1.5 Test Facility FCC – Registration No.: 994117 SEM.Test Compliance Services Co., Ltd. EMC Laboratory has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files and the Registration is 994117. Industry Canada (IC) Registration No.: 7673A The 3m Semi-anechoic chamber of SEM.Test Compliance Services Co., Ltd. has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 7673A. 1.6 EUT Exercise Software The EUT exercise program used during radiated and conducted testing was designed to exercise the system components. The test software, provided by the customer, is started while the EUT is on to simulate the normal work. under the Windows XP terminal. 1.7 Accessories Equipment List and Details Manufacturer Description Model Serial Number IBM Notebook T22 LV14893 TP-LINK Modem TM-EC5658V KT99CTQC-508 Lenovo Printer 3110 OD65133711480 1.8 EUT Cable List and Details Cable Description Length (M) Shielded/Unshielded With Core/Without Core Power Cable 1.8 Unshielded Without Core REPORT NO.: STR09088013E-3 PAGE 4 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R 2. SUMMARY OF TEST RESULTS Description of Test Result §15.107 (a) Conducted Emission Compliant §15.109(a) Radiated Emission Compliant REPORT NO.: STR09088013E-3 PAGE 5 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R 3. §15.107 (a)- CONDUCTED EMISSION 3.1 Measurement Uncertainty Base on NIS 81, The Treatment of Uncertainty in EMC Measurements, the best estimate of the uncertainty of any conducted emissions measurement is + 1.5 dB. 3.2 Test Equipment List and Details Serial Description Manufacturer Model Cal. Date Due. Date Number EMI Test Rohde & Schwarz ESPI 101611 2009-07-08 2010-07-07 Receiver L.I.S.N Schwarz beck NSLK8126 8126-224 2009-07-08 2010-07-07 Pulse Limiter Rohde & Schwarz ESH3-Z2 100911 2009-07-08 2010-07-07 AMN Rohde & Schwarz ESH3-Z5 828304/014 2009-07-08 2010-07-07 3.3 Test Procedure The setup of EUT is according with per ANSI C63.4-2003 measurement procedure. The specification used was with the FCC Part 15.107 Limit. The external I/O cables were draped along the test table and formed a bundle 30 to 40 cm long in the middle. The spacing between the peripherals was 10 cm. 3.4 Basic Test Setup Block Diagram LISN Modem Notebook Printer EUT LISN 10m To Receiver 1.5 0.8m Non-conduction table above Ground Plane 1. 5 m REPORT NO.: STR09088013E-3 PAGE 6 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R 3.5 Environmental Conditions Temperature: 25 °C Relative Humidity: 52% ATM Pressure: 1012 mbar 3.6 Test Receiver Setup During the conducted emission test, the test receiver was set with the following configurations: Start Frequency .......................................................................... 150 kHz Stop Frequency........................................................................... 30 MHz Sweep Speed .............................................................................. Auto IF Bandwidth.............................................................................. 10 kHz Quasi-Peak Adapter Bandwidth ................................................. 9 kHz Quasi-Peak Adapter Mode ......................................................... Normal 3.7 Summary of Test Results/Plots According to the data in section 3.8, the EUT complied with the FCC 15B Conducted margin for a Class B device, with the worst margin reading of: -13.35 dBμV at 0.42MHz in the Line mode, Pk detector, 0.15-30MHz 3.8 Conducted Emissions Test Data LINE CONDUCTED EMISSIONS FCC 15 CLASS B Frequency Amplitude Detector Phase Limit Margin MHz dBμV QP/Ave/Pk Line/Neutral dBμV dB 0.42 44.10 Pk Line 57.45 -13.35 0.33 45.96 Pk Line 59.45 -13.49 0.25 46.07 Pk Neutral 61.76 -15.69 0.39 41.66 Pk Neutral 58.06 -16.40 Note: The Peak reading is less than the average limit, so the average is full fit the average limit and no record. REPORT NO.: STR09088013E-3 PAGE 7 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R Plot of Conducted Emissions Test Data Conducted Disturbance EUT: Wireless-N Broadband Router M/N: W311R Operating Condition: Linking Test Specification: L Comment: AC 120V/60Hz connect to PC RBW 9 kHz MT 5 ms Att 10 dB AUTO dBµV 100 1 MHz 10 MHz 90 1 PK MAXH 80 2 AV MAXH TDF 70 -QP 60 -AV 50 6DB 40 30 20 10 0 150 kHz 30 MHz Date: 4.AUG.2009 10:44:44 REPORT NO.: STR09088013E-3 PAGE 8 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R Plot of Conducted Emissions Test Data Conducted Disturbance EUT: Wireless-N Broadband Router M/N: W311R Operating Condition: Linking Test Specification: N Comment: AC 120V/60Hz connect to PC RBW 9 kHz MT 5 ms Att 10 dB AUTO dBµV 100 1 MHz 10 MHz 90 1 PK MAXH 80 2 AV MAXH TDF 70 -QP 60 -AV 50 6DB 40 30 20 10 0 150 kHz 30 MHz Date: 4.AUG.2009 10:43:32 REPORT NO.: STR09088013E-3 PAGE 9 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R 4. §15.109(a)- RADIATED EMISSION 4.1 Measurement Uncertainty Base on NIS 81, The Treatment of Uncertainty in EMC Measurements, the best estimate of the uncertainty of any radiation emissions measurement is + 3.0 dB. 4.2 Test Equipment List and Details Manufacturer Description Model Serial Number Cal. Date Due. Date Spectrum Analyzer ROHDE&SCHWARZ FSEA20 DE25181 2009-07-08 2010-07-07 Positioning C&C CC-C-1F N/A 2009-07-08 2010-07-07 Controller Trilog Broadband SCHWARZBECK VULB9163 9163-333 2009-07-08 2010-07-07 Antenna Horn Antenna SCHWARZBECK BBHX 9120 9120-426 2009-07-08 2010-07-07 RF Switch EM EMSW18 SW060023 2009-07-08 2010-07-07 Amplifier Agilent 8447F 3113A06717 2009-07-08 2010-07-07 Coaxial Cable SCHWARZBECK AK9513 9513-10 2009-07-08 2010-07-07 EMI Test Receiver ROHDE&SCHWARZ ESPI 25498514 2009-07-08 2010-07-07 4.3 Test Procedure The setup of EUT is according with per ANSI C63.4-2003 measurement procedure. The specification used was with the FCC Part 15.205 and FCC Part 15.109 Limit. The external I/O cables were draped along the test table and formed a bundle 30 to 40 cm long in the middle. The spacing between the peripherals was 10 cm. Antenna Tower 1m-4m 3m EUT 0.8m Turntable Table To EMI Receiver Ground Plane REPORT NO.: STR09088013E-3 PAGE 10 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R 4.4 Test Receiver Setup During the conducted emission test, the test receiver was set with the following configurations: Start Frequency .......................................................................... 30 MHz Stop Frequency........................................................................... 1000 MHz Sweep Speed .............................................................................. Auto IF Bandwidth.............................................................................. 10 kHz Quasi-Peak Adapter Bandwidth ................................................. 120 kHz Quasi-Peak Adapter Mode ......................................................... Normal 4.5 Corrected Amplitude & Margin Calculation The Corrected Amplitude is calculated by adding the Antenna Factor and the Cable Factor, and subtracting the Amplifier Gain from the Amplitude reading. The basic equation is as follows: Corr. Ampl. = Indicated Reading – Corr. Factor The “Margin” column of the following data tables indicates the degree of compliance with the applicable limit. For example, a margin of -6dBμV means the emission is 6dBμV below the maximum limit for Class B. The equation for margin calculation is as follows: Margin = Corr. Ampl. – FCC Part 15B Limit 4.6 Environmental Conditions Temperature: 25 °C Relative Humidity: 54% ATM Pressure: 1011 mbar 4.7 Summary of Test Results/Plots According to the data, the EUT complied with the FCC 15B Class B standards, and had the worst margin of: -1.33 dBμV at 899.9577MHz in the Horizontal polarization, 30 MHz to 1 GHz, 3Meters REPORT NO.: STR09088013E-3 PAGE 11 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R Plot of Radiation Emissions Test Data Radiated Disturbance EUT: Wireless-N Broadband Router M/N: W311R Operating Condition: Linking Test Specification: Horizontal & Vertical Comment: AC 120V/60Hz connect to PC Horizontal No. Frequency Reading Correct Result Limit Margin Degree Height Remark (MHz) (dBuV/m) Factor(dB) (dBuV/m) (dBuV/m) (dB) ( °) (cm) 1 124.9249 34.37 4.57 38.94 43.50 -4.56 160 100 peak 2 136.8747 31.89 3.42 35.31 43.50 -8.19 36 100 peak 3 250.4859 36.35 7.69 44.04 46.00 -1.96 12 100 peak 4 384.5447 30.72 9.96 40.68 46.00 -5.32 2 100 peak 5 642.2923 23.78 15.31 39.09 46.00 -6.91 360 100 peak 6 899.9577 25.87 18.80 44.67 46.00 -1.33 110 100 peak REPORT NO.: STR09088013E-3 PAGE 12 OF 13 FCC PART 15.109

SHENZHEN TENDA TECHNOLOGY CO., LTD. Model: W311R Vertical No. Frequency Reading Correct Result Limit Margin Degree Height Remark (MHz) (dBuV/m) Factor(dB) (dBuV/m) (dBuV/m) (dB) ( °) (cm) 1 124.9249 27.95 4.57 32.52 43.50 -10.98 2 100 peak 2 250.4859 27.76 7.69 35.45 46.00 -10.55 30 200 peak 3 384.5447 31.80 9.96 41.76 46.00 -4.24 100 100 peak 4 512.9478 25.42 13.20 38.62 46.00 -7.38 200 200 peak 5 642.2923 25.09 15.31 40.40 46.00 -5.60 325 100 peak 6 899.9577 22.24 18.80 41.04 46.00 -4.96 360 100 peak ***** END OF REPORT ***** REPORT NO.: STR09088013E-3 PAGE 13 OF 13 FCC PART 15.109


Document Created: 2009-08-13 15:35:30
Document Modified: 2009-08-13 15:35:30
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