K7T-WIFIHU-C-2-NEUSB WiFi Module

Radicom Research, Inc. Preliminary Designers Guide for the WiFiHU-NE and WiFiHU USB WiFi Modules RoHS Compliant February 17, 2011 Table of Contents Introduction and Features 3 Ratings and Block Diagram 4 Model and Ordering Information 5 Connecting the WiFiHU or WiFiHU-NE to Your System 6 Mechanical Specification and Pin Orientation for the WiFiHU 7 Mechanical Specification for the WiFiHU USB HUB 8 WiFiHU USB Interface Pins 9 Additional Information on the Interface Signals 10 Important Compliance and User Information 11 Driver Installation Guide For Windows XP/2K 14 Driver Installation Guide For Windows 7 25 Driver Installation Guide For Windows Vista 30 WiFiHU USB Linux Driver Quick Installation Guide 36 Limited Warranty 37 Contacting Radicom Research 39 Introduction 2 Information furnished by Radicom Research is believed to be accurate and reliable. However Radicom Research assumes no responsibility for its use, or any infringement of patents or other rights of third parties that may result from its use. Radicom Research reserves the right to change circuitry at any time without notice. This document is subject to change without notice. Thanks for purchasing Radicom Research’s USB WiFi Module. Radicom is committed to providing quality service and technical support in order to expedite the product development process. The WiFiHU Module requires only a USB (Universal Serial Bus) interface to add state of the art data WiFi wireless operation to any system. It is designed to fully support IEEE802.11n™ Draft 2.0, IEEE802.11e™ and IEEE802.11i™ standards. If further information is required, please contact us and we will provide any additional help needed. Features • Compatible with both USB 1.1 and USB 2.0 host controllers • USB 2.0 Compatible Hot Swappable Interface • IEEE 802.11b/g/n compatible WLAN • 1x2 MIMO technology for extended reception robustness and exceptional throughput • 150Mbps receive PHY rate and 75Mbps transmit PHY rate using 20MHz bandwidth • 300Mbps receive PHY rate and 150Mbps transmit PHY rate using 40MHz bandwidth • 20MHz and 40MHz bandwidth transmission • Operates in 2.4GHz Frequency Range • Compatible with 802.11n draft 2.0 specification • Backward compatible with 802.11b/g devices while operating at 802.11n data rates • Frame aggregation for increased MAC efficiency (A-MSDU, A-MPDU) • Low latency immediate High-Throughput Block Acknowledgement (HT-BA) • Long NAV for media reservation with CF-End for NAV release • PHY-level spoofing to enhance legacy compatibility • MIMO power saving mechanism • Channel management and co-existence • Multiple BSSID feature allows the RTL8191SU-GR to assume multiple MAC identities when used as a wireless bridge • Supports Wake-On-WLAN via Magic Packet and Wake-up frame • Transmit Opportunity (TXOP) Short Inter-Frame Spaces (SIFS) bursting for higher multimedia bandwidth • One Transmit and Two Receive paths (1T2R) • Short Guard Interval (400ns) • DSSS with DBPSK and DQPSK, CCK modulation with long and short preamble • OFDM with BPSK, QPSK, 16QAM, and 64QAM modulation Convolutional Coding Rate: 1/2, 2/3, 3/4, and 5/6 • OFDM receive diversity with MRC using up to 2 receive paths. Switch diversity used for DSSS/CCK • Hardware antenna diversity • Selectable digital transmit and receive FIR filters • Programmable scaling in transmitter and receiver to trade quantization noise against increased probability of clipping • Fast receiver Automatic Gain Control (AGC) • RoHS Compliant and CE Marked 3 Support • IEEE 802.11b/g/n compatible WLAN • IEEE 802.11e QoS Enhancement (WMM) • IEEE 802.11h TPC, Spectrum Measurement • IEEE 802.11i (WPA, WPA2). Open, shared key, and pair-wise key authentication services • Cisco Compatible Extensions (CCX4) Ratings Parameter Min TypicalMax Units Maximum Data Rate 300M bps Operating Temperature HU 0° 70° °C Storage Temperature 0° 125° °C Relative Humidity (non-condensing) 5 % 95 % Current Consumption 152 155 162 mA Transmit & Receive Level -84(Rx) +17 (Tx) dBm Block Diagram 4 USB MAC RF USB Port USB MODULE GND Antenna Model and Ordering Information This versatile WiFiHU USB family of products offers various configuration options to meet the specific system requirements a designer may need to add state of the art WiFi USB operation. The WiFiHU is available as a module, a module with USB Jack and antennae interface, or as a complete external device in an enclosure. The WiFiHU also has three different antennae options. Model Description Comments WiFiHU-a WiFi USB Module with dual on board chip antennae Uses onboard chip antennae. Not for use with External Antenna. Allows designer to determine USB Jack placement. WiFiHU-a-1-NE WiFiHU-a installed in a WiFiHU-CB1 Carrier Board with on board USB Jack. Complete WiFi Module with dual chip antennae with USB Jack interface. WiFiHU-a-1-UE WiFiHU-a and WiFiHU-CB1 installed in enclosure Complete WiFi Standalone model with on board dual chip antenna and USB Jack mounted in enclosure. WiFiHU-c WiFi USB Module with two SMD Connectors for attaching antenna cable and 2.4GHz 2 dBi Omni-directional antenna Allows designer to determine USB Jack and antenna placement. WiFiHU-c-1-NE WiFiHU-c installed in WiFiHU- CB1 Carrier Board with on board USB Jack. Complete WiFi Module with cable and antenna with USB Jack interface. WiFiHU-c-1-UE WiFiHU-c and WiFiHU-CB1 installed in enclosure Complete WiFi Standalone model with cable, antenna and USB Jack mounted in enclosure WiFiHU-c-2-NE WiFiHU-c installed in WiFiHU- CB2 Carrier Board with on board RPSMA antenna Jack and USB Jack Complete WiFi Module with Fixed location antenna and USB Jack. WiFiHU-c-2-UE Complete WiFi module with antenna installed in a case. Complete WiFi USB Model with antenna and USB Jack mounted in enclosure. 5 Connecting the WiFiHU or WiFiHU-NE to Your System The WiFiHU Modules are designed for easy connection to any standard USB Port and wireless network. Connect one end of the USB cable into the USB connector on the WiFiHU-NE …

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Radicom Research, Inc. www.Radi.com 2148 Bering Drive, San Jose, CA 95131 U.S.A. Tel: 408-383-9006 Fax: 408-383-9007 Confidentility Letter (Permanent) Attention: Application Examiner Re: Request for confidentiality Applicant: Radicom Research Inc. FCC ID: K7T-WIFIHU-C-2-NE To whom it may concern, Request is hereby submitted by Radicom Research Inc. to withhold permanently from public review certain portions of the application for equipment certification for the referenced FCC identifiers. This request for confidentiality is made pursuant to 47 CFR 0.457(d) of the FCC Rules. In particular, the following sections of the application are to be kept permanently confidential: • Schematics • Detailed Block diagrams • Detailed Operational/Functional Description Rationale for request for confidentiality: Radicom Research Inc. has invested considerable time and materials in research and development to produce the referenced product. Disclosure of the permanently confidential portions of this application to competitors would not only give them significant competitive advantages in developing similar products, but would also disclose successful implementation of unpublished, leading edge technology developed by us. If you have questions or need further information, please contact the undersigned. Sincerely, Printed name: Roger L. Sheridan Title: Quality Manager Company name: Radicom Research, Inc. Date: 2011-05-31

FCC ID: K7T-WIFIHU-C-2-NE Date: Jun. 21, 2011 Modular Approval Request Letter Dear Sir, There’s an USB WiFi Module that would like to have your authorization as a modular approval. The specific product as below, USB WiFi Module, with its designed features and specified description, meets special requirements for full modular approval on FCC Public Notice DA 00-1407 by cross-reference list below. Com pany: Radicom Research Inc. Product Name: USB WiFi Module Model Number: WiFiHU-c-2-NE FCC ID: K7T-WIFIHU-C-2-NE Requirement of Part 15.212 Reference to WiFiHU-c-2-NE 1. The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located internal to the shielded radio elements. The module has its own RF shielding. Please see internal photo.pdf 2. The modular transmitter must have buffered modulation/data inputs. The modular has buffered data inputs, it is integrated in chip RTL8191SU. Please see diagram.pdf 3. The modular transmitter must have its own power supply regulation. All power lines derived from the host device are regulated before energizing other circuits internal to the WiFiHU-c-2-NE. Please see circuit.pdf 4. The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204(c). The WiFiHU-c-2-NE meets the FCC antenna requirements. It has a unique connector. Please see internal photo.pdf 5. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. The WiFiHU-c-2-NE was tested in a stand-alone configuration via an USB hub PCB (WiFiHU-NE). To remove the WiFiHU carefully remove it from the two 8 pin headers on the WiFiHU-NE USB interface board. Please see conducted set-up photo.pdf and spurious set-up photo.pdf 6. The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. The label position of WiFiHU-c-2-NE is clearly indicated. Please see the label.pdf 7. The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. The WiFiHU-c-2-NE is compliant with all applicable FCC rules. Detail instructions are given in the Users Manual. Please see Installation guide.pdf 8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). The WiFiHU-c-2-NE complies with applicable RF exposure requirements. Please see RF safety evaluation. pdf Yours sincerely, Jimmy Yang Engineer Intertek Testing Service Taiwan Ltd .

Radicom Research, Inc. www.Radi.com 2148 Bering Drive, San Jose, CA 95131 U.S.A. Tel: 408-383-9006 Fax: 408-383-9007 Attestation for FCC Declaration of Conformity FCC ID: K7T-WIFIHU-C-2-NE Date: 2011-05-31 Please be notified that we, the undersigned, Radicom Research Inc. declares that the product which bears the above FCC ID is also compliant with the FCC requirements for DoC. The test report number supporting the DoC is TS11050006-EME. Testing in regards to this report was done by Intertek Testing Services Taiwan Ltd., located at 11, Ln. 275, Ko Nan 1st Street, Shiang-Shan District, Hsinchu 300 Taiwan, R.O.C., which has been accredited in accordance to all of the requirements of 47CFR 2.948 (d) and (e) of the FCC rules and KDB349827. Sincerely, Printed name: Roger L. Sheridan Position: Quality Manager Company Name: Radicom Research, Inc. Tel: 408-383-9006 Fax: 408-383-9007 Email: [email protected]

Internal photo of EUT Model: WiFiHU-c-2-NE Model: WiFiHU-c-2-NE Internal photo of EUT Model: WiFiHU-c-2-NE Model: WiFiHU-c-2-NE Internal photo of EUT Model: WiFiHU-c-2-NE Model: WiFiHU-c-2-NE Internal photo of EUT Model: WiFiHU-c-2-NE Model: WiFiHU-c-2-NE Internal photo of EUT Model: WiFiHU-c-2-NE Antenna Internal photo of EUT Antenna

Model: WiFiHU-c-2-NE FCC ID & IC Label Location Radicom Research Inc. Model: WiFiHU-c-2-NE FCC ID: K7T-WIFIHU-C-2-NE IC: 2377A-WIFIHUC2NE

Internal photo of EUT Model: WiFiHU-c-2-NE Model: WiFiHU-c-2-NE Internal photo of EUT Model: WiFiHU-c-2-NE Model: WiFiHU-c-2-NE Internal photo of EUT Model: WiFiHU-c-2-NE Model: WiFiHU-c-2-NE Internal photo of EUT Model: WiFiHU-c-2-NE Model: WiFiHU-c-2-NE Internal photo of EUT Model: WiFiHU-c-2-NE Antenna Internal photo of EUT Antenna

FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050012-EME Page 1 of 7 Maximum Permissible Exposure (MPE) Evaluation Report Report No. : TS11050012-EME Model No. : WiFiHU-c-2-NE Issued Date : Jun. 08, 2011 Applicant: Radicom Research Inc. 2148 Bering Dr., San Jose, CA. 95131, USA Test Method/ Standard: FCC 1.1310 Test By: Intertek Testing Services Taiwan Ltd. No. 11, Lane 275, Ko-Nan 1 Street, Chia-Tung Li, Shiang-Shan District, Hsinchu City, Taiwan It may be duplicated completely for legal use with the allowance of the applicant. It shall not be reproduced except in full, without the written approval of Intertek Laboratory. The test result(s) in this report only applies to the tested sample(s). The test report was prepared by: Sign on File Jill Chen / Assistant These measurements were taken by: Sign on File Terry Hsu / Engineer The test report was reviewed by: Name Jimmy Yang Title Engineer FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050012-EME Page 2 of 7 Table of Contents Summary of Tests ............................................................................................................. 3 1. Introduction .................................................................................................................. 4 2. RF Exposure Limit ....................................................................................................... 4 3. RF Exposure calculations ............................................................................................. 5 4 Description of EUT ....................................................................................................... 6 5. Test results .................................................................................................................... 7 FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050012-EME Page 3 of 7 Summary of Tests MPE Evaluation meet FCC OET No. 65: 1997, IEEE C95.1-2005 USB WiFi Module - Model: WiFiHU-c-2-NE FCC ID: K7T-WIFIHU-C-2-NE Test Reference Results MPE Evaluation FCC Guidelines for Human Exposure IEEE C95.1 Complies FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050012-EME Page 4 of 7 1. Introduction The EUT operates in the 2.4 GHz ISM band. Due to the EUT (include antenna) at its normal operation distance is at least 20 cm from the human body, the EUT was defined as a Mobile Device. The reason to do the MPE Evaluation is to avoid the RF hazard to human body. The maximum output power and gain of the antenna were used to calculate the limited Power density (S) at 20 cm distance away from the product. The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 and Safety Code 6 are followed. According to 1.1307 (b)(1), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. 2. RF Exposure Limit According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in 1.1307(b). Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (minutes) (A) Limits for Occupational / Control Exposures 30-300 61.4 0.163 1.0 6 300-1500 - - F/300 6 1500-100,000 - - 5 6 (B) Limits for General Population / Uncontrolled Exposure 30-300 27.5 0.073 0.2 30 300-1500 - - F/1500 30 1500-100,000 - - 1.0 30 F= Frequency in MHz FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050012-EME Page 5 of 7 3. RF Exposure calculations From §FCC 1.1310 table 1, the maximum permissible RF exposure for an uncontrolled environment is 1 mW/(cm 2 ) (or 10 W/m 2 )* Power density (S) is calculated by the following formula: S = (P * G)/4πR 2 where, S = Power density (mW/cm 2 ) P = Output power to antenna (mW) R = Distance between radiating structure and observation point (cm) G = Gain of antenna in numeric π = 3.1416 Example: Assume a mobile device operates at 2412MHz and its maximum output power is 50mW, and the maximum gain of antenna is 1 (numeric) /0dBi. then the power density (S) = (50 * 1)/4*π*20 2 = 0.00995 (mW/cm 2 ) (or = 0.0995 W/m 2 ) FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050012-EME Page 6 of 7 4 Description of EUT The EUT is an USB WiFi Module, and was defined as information technology equipment. For more detail features, please refer to User's manual as file name “Installation guide.pdf” 4.1 Antenna description Antenna The antenna is affixed to the EUT using a unique connector, which allows for replacement of a broken antenna, but DOES NOT use a standard antenna jack or electrical connector. Antenna Gain : 2 dBi Antenna Type : Dipole antenna Connector Type : IPX FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050012-EME Page 7 of 7 5. Test results EUT : WiFiHU-c-2-NE Mode Channel Frequency (MHz) Antenna gain (numeric) Output power to antenna (mW) Power density (mW/cm 2 ) Limit of power density (mW/cm 2 ) 2412 1.58 20.09 0.006334760 1.0 2437 1.58 19.68 0.006204834 1.0 802.11b 2462 1.58 18.24 0.005750825 1.0 2412 1.58 49.43 0.015585838 1.0 2437 1.58 48.75 0.015371992 1.0 802.11g 2462 1.58 47.75 0.015056712 1.0 2412 1.58 50.23 0.015839087 1.0 2437 1.58 49.09 0.015478545 1.0 802.11n HT20 2462 1.58 48.31 0.015231061 1.0 2412 1.58 45.29 0.014280064 1.0 2437 1.58 44.16 0.013922914 1.0 802.11n HT40 2462 1.58 43.15 0.013605990 1.0 The Notice in Installation Manual has been stated as below: While installing and operating this transmitter, the radio frequency exposure limit of 1 mW/ (cm 2 ) may be exceeded at distances close to the transmitter. Therefore, the user must maintain a minimum distance of 20 cm from the device at all time.

FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 1 of 65 EMC TEST REPORT Report No. : TS11050011-EME Model No. : WiFiHU-c-2-NE Issued Date : Jun. 08, 2011 Applicant: Radicom Research Inc. 2148 Bering Dr., San Jose, CA. 95131, USA Test Method/ Standard: CFR 47 FCC Part 15.247 & ANSI C63.4 2003 Test By: Intertek Testing Services Taiwan Ltd. No. 11, Lane 275, Ko-Nan 1 Street, Chia-Tung Li, Shiang-Shan District, Hsinchu City, Taiwan It may be duplicated completely for legal use with the allowance of the applicant. It shall not be reproduced except in full, without the written approval of Intertek Laboratory. The test result(s) in this report only applies to the tested sample(s). The test report was prepared by: Sign on File Jill Chen / Assistant These measurements were taken by: Sign on File Terry Hsu / Engineer The test report was reviewed by: Name Jimmy Yang Title Engineer FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 2 of 65 Table of Contents 1. Summary of Test Data................................................................................................. 3 2. General Information .................................................................................................... 4 3. Maximum 6 dB Bandwidth .......................................................................................... 8 4. 99 % Occupied Bandwidth ........................................................................................ 16 5. Maximum Output Power............................................................................................ 24 6. Power Spectral Density ............................................................................................. 26 7. RF Antenna conducted Spurious............................................................................... 34 8. Radiated Spurious Emission..................................................................................... 41 9. Emission on Band Edge............................................................................................ 50 Appendix A: Test Equipment List................................................................................... 65 FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 3 of 65 1. Summary of Test Data Test/Requirement Description Applicable Rule Result Minimum 6 dB Bandwidth 15.247(a)(2) Pass Maximum Output Power 15.247(b) Pass Power Spectral Density 15.247(e) Pass RF Antenna Conducted Spurious 15.247(d) Pass Radiated Spurious Emission 15.247(d), 15.205, 15.209 Pass Emission on the Band Edge 15.247(d) Pass AC Power Line Conducted Emission 15.207 Pass FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 4 of 65 2. General Information Identification of the EUT Product: USB WiFi Module Model No.: WiFiHU-c-2-NE FCC ID.: K7T-WIFIHU-C-2-NE Frequency Range: 1. 2412 MHz ~ 2462 MHz for 802.11b, 802.11g, 802.11n HT20 2. 2422 MHz ~ 2452 MHz for 802.11n HT40 Channel Number: 1. 11 channels for 2412 MHz ~ 2462 MHz 2. 7 channels for 2422 MHz ~ 2452 MHz Rated Power: DC 5 V Power Cord: N/A Data Cable: USB shielded cable 0.2 meter × 1 Sample Received: May 02, 2011 Test Date(s): May 04, 2011 ~ Jun 03, 2011 Note 1: This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification program. Note 2: When determining the test conclusion, the Measurement Uncertainty of test has been considered. FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 5 of 65 Description of EUT The EUT is a USB WiFi Module, and was defined as information technology equipment. For more detail features, please refer to User's manual as file name “Installation guide.pdf” Antenna description Antenna The antenna is affixed to the EUT using a unique connector, which allows for replacement of a broken antenna, but DOES NOT use a standard antenna jack or electrical connector. Antenna Gain : 2 dBi Antenna Type : Dipole antenna Connector Type : IPX Peripherals equipment Peripherals BrandModel No. Serial No. Description of Data Cable Notebook PC DELLLatitude D6102YWZK1S USB shielded cable 0.1 meter × 1 Modem LEMEL MD-56KVT-100 00V230A00078422N/A Printer HP DeskJet 400 TH86I1K30S N/A Mouse IBM MO09BO 23-021287 N/A FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 6 of 65 Operation mode The EUT was supplied with 5 Vdc from Notebook PC (Test voltage: 120Vac, 60Hz) and it was run in TX / RX mode that was controlled by “MP819xVC” program. Plug the EUT into Notebook PC via USB interface, then turn on the Notebook PC power and run the test program “MP819xVC” under windows OS, which provide by manufacturer. With individual verifying, the maximum output power was found out 1 Mbps data rate for 802.11b mode and 6 Mbps data rate for 802.11g mode, 6.5 Mbps data rate for 802.11n HT 20 mode and 13 Mbps data rate for 802.11n HT 40 mode. The final tests were executed under these conditions recorded in this report individually. Please refer the details below: Chain 0: 802.11b channel 6 Chain 0: 802.11n HT20 channel 6 Data rate (Mbps) PK(dBm) Data rate (Mbps)PK(dBm) 1 16.09 6.5 16.87 2 15.92 13 16.76 5.5 15.87 19.5 16.69 11 15.81 26 16.61 39 16.54 52 16.44 58.5 16.39 65 16.37 Chain 0: 802.…

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FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 34 of 65 7. RF Antenna conducted Spurious Name of Test RF Antenna Conducted Spurious Base Standard FCC 15.247(d) Test Result: Complies Measurement Data: See plots below Method of Measurement: Reference FCC document: KDB558074 The measurements were performed from 30 MHz to 25 GHz(for 2.4G) and 30 MHz to 40 Method of Measurement: Reference FCC document: KDB558074 The measurements were performed from 30 MHz to 25 GHz RF antenna conducted per FCC 15.247 (d) was measured from the EUT antenna port using a 50 ohm spectrum analyzer with the resolution bandwidth set at 100 kHz, and the video bandwidth set at 100 kHz. Harmonics and spurious noise must be at least 20 dB down from the highest emission level within the authorized band as measured with a 100 kHz RBW. The table below is the results from the highest emission for each channel within the authorized band. This table was used to determine the spurious limits for each channel. Test Diagram: Spectrum Analyzer Attenuator, DC block and high pass filter if necessary EUT FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 35 of 65 Chain 0: conducted spurious @ 802.11b mode channel 1 Chain 0: conducted spurious @ 802.11b mode channel 6 FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 36 of 65 Chain 0: conducted spurious @ 802.11b mode channel 11 Chain 0: conducted spurious @ 802.11g mode channel 1 FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 37 of 65 Chain 0: conducted spurious @ 802.11g mode channel 6 Chain 0: conducted spurious @ 802.11g mode channel 11 FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 38 of 65 Chain 0: conducted spurious @ 802.11n HT20 mode channel 1 Chain 0: conducted spurious @ 802.11n HT20 mode channel 6 FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 39 of 65 Chain 0: conducted spurious @ 802.11n HT20 mode channel 11 Chain 0: conducted spurious @ 802.11n HT40 mode channel 3 FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 40 of 65 Chain 0: conducted spurious @ 802.11n HT40 mode channel 6 Chain 0: conducted spurious @ 802.11n HT40 mode channel 9 FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 41 of 65 8. Radiated Spurious Emission Name of Test Radiated Spurious Emission Base Standard FCC 15.247(d), 15.209, 15.205 Test Result: Complies Measurement Data: See Tables below Method of Measurement: Reference FCC document: KDB558074, ANSI C63.4 The frequency range from 30 MHz to 1000 MHz using Bilog Antenna. The frequency range over 1 GHz using Horn Antenna. Radiated emissions were invested cover the frequency range from 30 MHz to 1000 MHz using a receiver RBW of 120 kHz record QP reading, and the frequency over 1 GHz using a spectrum analyzer RBW of 1 MHz and 10 Hz VBW record Average reading. (15.209 paragraph), the Peak reading (1 MHz RBW/VBW) recorded also on the report. The EUT for testing is arranged on a wooden turntable. If some peripherals apply to the EUT, the peripherals will be connected to EUT and the whole system. During the test, all cables were arranged to produce worst-case emissions. The signal is maximized through rotation. The height of antenna and polarization is changing constantly for exploring for maximum signal level. The height of antenna can be up to 4 meters and down to 1 meter. The measurement for radiated emission will be done at the distance of three meters unless the signal level is too low to measure at that distance. In the case of the reading under noise floor, a pre-amplifier is used and/or the test is conducted at a closer distance. And then all readings are extrapolated back to the equivalent 3 meters reading using inverse scaling with distance. The EUT configuration please refer to the “Spurious set-up photo.pdf”. FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 42 of 65 Test Diagram: Emission Limit: The spurious Emission shall test through the 10th harmonic. In addition, radiated emissions which fall in the restricted bands, as defined in §15.205(a), must also comply with the radiated emission limits specified in §15.209(a). Frequency (MHz) Limits (dBμV/m@ 3 meter) 30-88 40 88-216 43.5 216-960 46 Above 960 54 Remark: 1. In the above table, the tighter limit applies at the band edges. 2. Distance refers to the distance in meters between the measuring instrument antenna and the closed point of any part of the device or system Note: (1) The EUT was tested while in a continuous transmit mode and the worst case data rates are Mbps data rate for 802.11b mode, 6 Mbps data rate for 802.11g mode, 6.5 Mbps data rate for 802.11n HT20 mode and 13 Mbps data rate for 802.11n HT40 mode. The EUT was tuned to a low, middle and high channel. (2) The EUT operating at 2.4 GHz ISM band. Frequency Range scanned from 30 MHz to 25 GHz. Horn or Bilog Antenna RF Test Receiver Ground Plane Antenna To w e r □ 3 meter 1-4 meter 0.8 m EUT & Peripherals HPF and Pre-Amp. (if necessary) FCC ID. : K7T-WIFIHU-C-2-NE Report No.: TS11050011-EME Page 43 of 65 Measurement results: frequencies equal to or less than 1 GHz The test was performed on EUT under 802.11b, 802.11g, 802.11n HT20 and 802.11n HT40 mode. The worst case occurred at 802.11b Tx channel 1. EUT : WiFiHU-c-2-NE Worst Case : 802.11b Tx at channel 1 Antenna Freq. Receiver Corr. ReadingCorrectedLimit Margin Polariz. Factor Level @ 3 m (V/H) (MHz) Detector (dB/m) (dBuV)(dBuV/m)(dBuV/m) (dB) V 30.60 QP 12.60 25.23 37.82 40.00 -2.18 V 58.13 QP 12.90 19.56 32.45 40.00 -7.55 V 94.99 QP 7.38 29.75 37.12 43.50 -6.38 V 107.60QP 7.64 30.88 38.52 43.50 -4.98 V 249.22QP 12.22 24.19 36.40 46.00 -9.60 V 878.75QP 24.35 13.25 37.59 46.00 -8.41 H 94.99 QP 7.93 30.85 38.77 43.50 -4.73 H 165.80QP 13.84 23.99 37.82 43.50 -5.68 H 199.75QP 11.27 25.69 36.95 43.50 -6.55 H 249.22QP 12.…

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