2AR82-SKOWB663U301IEEE 802.11a/b/g/n/ac 2T2R USB Wi-Fi Module Integrated BT 2.1+EDR/4.2/5.1

广州视琨电子科技有限公司 GuangzhouShikunElectronicTechnologyCompanyLimited 版权 CVTE 所有，本文档内容属商业机密。未经允许，任何组织或个人不得以任何形式复制和传播。 保密等级：机密 SPECIFICATION 产品规格书 SKO.WB663U.3 IEEE802.11a/b/g/n/ac2T2RUSBWi-FiModule IntegratedBT2.1+EDR/4.2/5.1 ApprovedbyShikun Checkedby审核Recheckedby复审Approvedby批准 Pleasesendtheoriginalbacktousafteryouhaveapprovedandsigned. 客户承认签章后敬请寄回正本一份。 Approvedbycustomer Comments确认意见Approvedby批准签字Company’sseal盖章 Customer’sName: 版权 CVTE 所有，本文档内容属商业机密。未经允许，任何组织或个人不得以任何形式复制和传播。 REVISIONHISTORY VERSIONDATEBOARDIDPAGEDESCRIPTIONAUTHOR V1.02021.07.19 SKO.WB663U.3 A21286 AllFirstreleaseZhouz V1.12021.07.28 SKO.WB663U.3 A21286 3 修改实物图片 Zhouz 版权 CVTE 所有，本文档内容属商业机密。未经允许，任何组织或个人不得以任何形式复制和传播。 Content 1.Introduction（简介） ............................................................................................................ 1 2.Features（特性） ................................................................................................................... 1 3.BlockDiagram（结构框图） ............................................................................................... 2 4.PackageOutlineandMounting（外形及安装尺寸） ................................................... 2 5.ProductPictures（实物图片） ............................................................................................ 3 6.KeyMaterials（关键物料） ................................................................................................. 4 7.GeneralRequirements（一般要求） ............................................................................... 4 8.ElectricalCharacteristics（电气特性） ........................................................................... 4 8.1IEEE802.11bSection ................................................................................................. 5 8.2IEEE802.11gSection ................................................................................................. 5 8.3IEEE802.11nHT20Section(2.4GHz) .................................................................. 6 8.4IEEE802.11nHT40Section(2.4GHz) .................................................................. 7 8.5IEEE802.11aSection ................................................................................................. 8 8.6IEEE802.11nHT20Section(5GHz) ...................................................................... 9 8.7IEEE802.11nHT40Section(5GHz) ...................................................................... 9 8.8IEEE802.11acSection ............................................................................................ 10 8.9BluetoothSection ...................................................................................................... 11 9.Mechanical,EnvironmentalandReliabilityTests（机械、环境和可靠性测试）13 10.Package（包装） ................................................................................................................. 15 11.SocketSpecification（插座规格） ................................................................................. 16 12.WarningInformation（警告语） .................................................................................... 16 SKO.WB663U.3 QR-ZZPJ-017A 版权CVTE所有，本文档内容属商业机密。未经允许，任何组织或个人不得以任何形式复制和传播。 1 1.Introduction （简介） SKO.WB663U.3moduleisbasedonMEDIATEKMT7663BUNsolution.MT7663BUNis ahighlyintegratedsinglechipwhichfeaturesalowpower2x211a/b/g/n/acdual-band Wi-Fisubsystem.TheWi-Fisubsystemcontainsthe802.11a/b/g/n/acradio,baseband, andMACthataredesignedtomeetboththelowpowerandhighthroughputapplication. TheBluetoothsubsystemcontainstheBluetoothradiowhichcomplieswithBluetooth v2.1+EDR,v4.2,andv5.1,baseband,linkcontroller.Thisdocumentationdescribesthe engineeringrequirementsspecification. SKO.WB663U.3模块基于MEDIATEKMT7663BUN解决方案。MT7663BUN是一款高度 集成的芯片，具有低功耗2x211a/b/g/n/ac双频Wi-Fi子系统。Wi-Fi子系统包含 802.11a/b/g/n/ac射频、基带和MAC，旨在满足低功耗和高吞吐量应用。蓝牙子系统包含蓝牙 2.1+EDR、v4.2和v5.1、基带和链路控制器。本文件描述了工程需求规范。 2.Features （特性） ReservingSystem 接收制式 IEEEStd.802.11a IEEEStd.802.11b IEEEStd.802.11g IEEEStd.802.11n IEEEStd.802.11ac BT2.1+EDR/4.2/5.1 ChipSolution 芯片方案 MT7663BUN Band 波段 2.4/5GHz Dimensions 尺寸 70.00mm×25.05mm×3.20mm 型号安装方式支持标准频段天线接口备注 SKO.WB663U. 3 外挂 Ext-WIFI IEEE 802.11a/b/g/n/ac BT2.1+EDR/4.2/5.1 2.4/5G Hz WiFi：板载天线 BT：Ipex 70.00mm×25.05mm×3 .20mm SKO.WB663U.3 QR-ZZPJ-017A 版权CVTE所有，本文档内容属商业机密。未经允许，任何组织或个人不得以任何形式复制和传播。 2 3. Block Diagram （结构框图） 4. Package Outline and Mounting （外形及安装尺寸） N/A SKO.WB663U.3 QR-ZZPJ-017A 版权CVTE所有，本文档内容属商业机密。未经允许，任何组织或个人不得以任何形式复制和传播。 3 Pin Definition（引脚定义） PINSYMBOLDESCRIPTION 1VDD_5V 5V Input \ 5V输入 2VDD_5V 5V Input \ 5V输入 3BT_WOW BT WAKE HOST \BT唤醒主机，模组上拉到3.3V，唤醒时模组输出低电平 4GND Ground \地 5GND Ground \地 6USB_DM USB2.0 DM Signal \ USB2.0差分负电压信号 7USB_DP USB2.0 DP Signal \ USB2.0差分正电压信号 8GND Ground \地 9WiFi_WOW WIFI WAKE HOST \ WIFI唤醒主机，模组上拉到3.3V，唤醒时模组输出低电平 10RESET RESET \复位，正常工作为高电平，模组内部上拉，输入低电平时模组复位 5. Product Pictures （实物图片） 正视图（top view） 背视图（bottom view） SKO.WB663U.3 QR-ZZPJ-017A 版权CVTE所有，本文档内容属商业机密。未经允许，任何组织或个人不得以任何形式复制和传播。 4 6. Key Materials （关键物料） 序号关键件名称型号规格/材料备注 1 集成电路 MT7663BUN76-QFN 2PCBSKO.WB663U.3FR-4,4LAY 3 晶体振荡器 2.3.3.40000120840MHz 4 双工器 RFDIP160806ALM6T30 7. General Requirements（一般要求） No.FeatureDescription 7-1 Operation Voltage工作电压范围 5.0V+/-0.5 7-2 Current Consumption最大电流 800mA 7-3 Ripple纹波 ≤250Vp-p 7-4 Operation Temperature工作温度范围 0°C to +40°C 7-5 Antenna Type天线类型 Internal antenna(WiFi) & External antenna(BT) 7-6USBHigh Speed USB 2.0 Interface 7-7 Storage Temperature存储温度 -40°C to +85°C 8. Electrical Characteristics（电气特性） 除非另有说明，电气规范试验是在下列条件下进行，环境条件温度：25°C±5°C；电源电压：模块输 入电压5.0V（±10%）； The Test for electrical specification was performed under the following condition unless otherwise specified. Ambient condition Temperature :25°C± 5°C; Power supply voltages：5.0V (±10%) input power at the Module. SKO.WB663U.3 QR-ZZPJ-017A 版权CVTE所有，本文档内容属商业机密。未经允许，任何组织或个人不得以任何形式复制和传播。 13 9.Mechanical,EnvironmentalandReliabilityTests （机械、环境和可靠性测试） TestItemsTestConditionsQtyCriteriaCondition 9-1Droptest Thepackedsampleswas testedatbelowcondition: Dropheight: 760mm(0.5~9.5kg） 610mm(9.5~18.5kg) Droptime:1xcor…

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Guangzhou Shikun Electronics Co., Ltd Date: 07/09/2021 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 To whom it may concern: I, the undersigned, hereby authorize UL Verification Services Inc. to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by UL Verification Services Inc. on our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing UL Verification Services Inc. as our representative, we still recognize that we are responsible to: a) comply with the relevant provisions of the certification program; b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c) make claims regarding certification only in respect of the scope for which certification has been granted; d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized; e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f) use certification only to indicate the products are certified as being in conformity with specified standards; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; i) keep a record of all complaints made known to us relating to the product’s compliance with requirements of the relevant standard and to make these records available to the when requested; j) take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signed by: Company Name: Guangzhou Shikun Electronics Co., Ltd Contact Name: Bing Yi Title of Person: Certification Manager Address: NO.6 Liankun Road, Huangpu District, Guangzhou 510530, China

Guangzhou Shikun Electronics Co., Ltd Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Request for Confidentiality FCC ID: 2AR82-SKOWB663U301 To Whom It May Concern: Pursuant to the provisions of Sections 0.457 and 0.459 of the Commission’s rules (47 CFR §§ 0.457, 0.459), we are requesting the Commission to withhold the following attachments as confidential document from public disclosure indefinitely. Schematic Diagram Block Diagram Theory of Operation BOM List Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Best Regards Company Name: Guangzhou Shikun Electronics Co., Ltd Contact Name: Bing Yi Title of Person: Certification Manager Address: NO.6 Liankun Road, Huangpu District, Guangzhou 510530, China Date: 08/06/2021

Modular Approval Request FCC (Per 15.212) FCC ID: 2AR82-SKOWB663U301 Items to be coveredAnswer From Applicant 1. The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements. Yes 2. The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over- modulation. Yes 3. The modular transmitter must have its own power supply regulation.Yes 4. The modular transmitter must comply with the antenna and transmission system requirements of §§15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a “unique” antenna coupler (at all connections between the module and the antenna, including the cable). The “professional installation” provision of §15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section. Yes 5. The modular transmitter must be tested in a stand-alone configuration,i.e., the module must not be inside another device during testing for compliance with part 15 requirements. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in §15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see §15.27(a)). The length of these lines shall be the length typical of actual use or, if that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified and commercially available (see §15.31(i)). Yes 6. The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. (A) If using a permanently affixed label, the modular transmitter must be labeled with its own FCC identification number, and, if the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID: XYZMODEL1” or “Contains FCC ID: XYZMODEL1.” Any similar wording that expresses the same meaning Yes may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. (B) If the modular transmitter uses an electronic display of the FCC identification number, the information must be readily accessible and visible on the modular transmitter or on the device in which it is installed. If the module is installed inside another device, then the outside of the device into which the module is installed must display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains FCC certified transmitter module(s).” Any similar wording that expresses the same meaning may be used. The user manual must include instructions on how to access the electronic display. A copy of these instructions must be included in the application for equipment authorization. 7. The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete 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. Yes 8. Radio frequency devices operating under the provisions of this part are subject to the radio frequency radiation exposure requirements specified in §§1.1307(b), 1.1310, 2.1091, and 2.1093 of this chapter, as appropriate. Applications for equipment authorization of modular transmitters under this section must contain a statement confirming compliance with these requirements. The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. Technical information showing the basis for this statement must be submitted to the Commission upon request. Yes Note: If compliance with one or more of the numbered requirements, listed above, cannot be demonstrated, it may be possible to obtain a “Limited Modular Approval” (LMA). ___________________________ Bing Yi Title: Certification Manager Guangzhou Shikun Electronics Co., Ltd

External Photographs Page 2 of 6 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . View of EUT-1 View of EUT-2 WIFI ANT 1 WIFI ANT 2 Page 3 of 6 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . View of EUT-3 (BT ANT 1-190mm) View of EUT-4(BT ANT 2-230mm) Page 4 of 6 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . View of EUT-5(BT ANT 3-390mm) View of EUT-6 Page 5 of 6 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . View of EUT-7 View of EUT-8 Page 6 of 6 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . View of EUT-9

Label: Location:

Internal Photographs Page 2 of 2 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . Internal View of EUT-1

The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. FCC RF EXPOSURE REPORT CERTIFICATION TEST REPORT For IEEE 802.11a/b/g/n/ac 2T2R USB Wi-Fi Module Integrated BT 2.1+EDR/4.2/5.1 MODEL NUMBER: SKO.WB663U.3 FCC ID: 2AR82-SKOWB663U301 IC: 24728-SKOWB663U31 REPORT NUMBER: 4790053515-5 ISSUE DATE: August 17, 2021 Prepared for Guangzhou Shikun Electronics Co., Ltd NO.6 Liankun Road,Huangpu District,Guangzhou,China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Building 10, Innovation Technology Park, No. 1, Li Bin Road, Song Shan Lake Hi- Tech Development Zone Dongguan, 523808, People’s Republic of China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4790053515-5 Page 2 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 08/17/2021 Initial Issue REPORT NO.: 4790053515-5 Page 3 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS ................................................................................. 4 2. TEST METHODOLOGY ..................................................................................................... 5 3. FACILITIES AND ACCREDITATION ................................................................................. 5 4. REQUIREMENT ................................................................................................................. 6 REPORT NO.: 4790053515-5 Page 4 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 1. ATTESTATION OF TEST RESULTS Applicant Information Company Name: Guangzhou Shikun Electronics Co., Ltd Address: NO.6 Liankun Road,Huangpu District,Guangzhou,China Manufacturer Information Company Name: Guangzhou Shikun Electronics Co., Ltd Address: NO.6 Liankun Road,Huangpu District,Guangzhou,China EUT Information EUT Name: IEEE 802.11a/b/g/n/ac 2T2R USB Wi-Fi Module Integrated BT 2.1+EDR/4.2/5.1 Model: SKO.WB663U.3 Sample Received Date: August 04, 2021 Sample Status: Normal Sample ID: 4123864 Date of Tested: August 06, 2021 ~ August 16, 2021 APPLICABLE STANDARDS STANDARD TEST RESULTS FCC 47CFR§2.1091 PASS Prepared By: Checked By: Mick Zhang Shawn Wen Project Engineer Laboratory Leader Approved By: Stephen Guo Laboratory Manager REPORT NO.: 4790053515-5 Page 5 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 2. TEST METHODOLOGY The tests documented in this report were performed in accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091. 3. FACILITIES AND ACCREDITATION Accreditation Certificate A2LA (Certificate No.: 4102.01) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. has been assessed and proved to be in compliance with A2LA. FCC (FCC Designation No.: CN1187) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. Has been recognized to perform compliance testing on equipment subject to the Commission's Declaration of Conformity (DoC) and Certification rules ISED (Company No.: 21320) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. has been registered and fully described in a report filed with Industry Canada. The Company Number is 21320. VCCI (Registration No.: G-20019, R-20004, C-20012 and T-20011) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. has been assessed and proved to be in compliance with VCCI, the Membership No. is 3793. Facility Name: Chamber D, the VCCI registration No. is G-20019 and R-20004 Shielding Room B, the VCCI registration No. is C-20012 and T-20011 Note: All tests measurement facilities use to collect the measurement data are located at Building 10, Innovation Technology Park, Song Shan Lake Hi tech Development Zone, Dongguan, 523808, China. REPORT NO.: 4790053515-5 Page 6 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 4. REQUIREMENT LIMIT AND CALCULATION METHOD Systems operating under the provisions of FCC 47 CFR section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as mobile device whereby a distance of 0.2m normally can be maintained between the user and the device, and below RF Permissible Exposure limit shall comply with. Limits for General Population/Uncontrolled Exposure RF EXPOSURE LIMIT Frequency Range (MHz) E-field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Time |E| 2 , |H| 2 or S (Minutes) 0.3 -- 1.34 614 1.63 (100)* 30 1.34 -- 30 824/f 2.19/f (180/f 2 )* 30 30 -- 300 27.5 0.073 0.2 30 300 -- 1500 --…

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The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. CFR 47 FCC PART 15 SUBPART C ISED RSS-247 ISSUE 2 CERTIFICATION TEST REPORT For IEEE 802.11a/b/g/n/ac 2T2R USB Wi-Fi Module Integrated BT 2.1+EDR/4.2/5.1 MODEL NUMBER: SKO.WB663U.3 FCC ID: 2AR82-SKOWB663U301 IC: 24728-SKOWB663U31 REPORT NUMBER: 4790053515-1 ISSUE DATE: August 17, 2021 Prepared for Guangzhou Shikun Electronics Co., Ltd NO.6 Liankun Road,Huangpu District,Guangzhou,China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Building 10, Innovation Technology Park, No. 1, Li Bin Road, Song Shan Lake Hi- Tech Development Zone Dongguan, 523808, People’s Republic of China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4790053515-1 Page 2 of 84 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0087 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 08/17/2021 Initial Issue REPORT NO.: 4790053515-1 Page 3 of 84 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0087 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Summary of Test Results Clause Test Items FCC/ISED Rules Test Results 1 6dB Bandwidth and 99% Occupied Bandwidth FCC Part 15.247 (a) (2) RSS-247 Clause 5.2 (a) ISED RSS-Gen Clause 6.7 Pass 2 Peak Conducted Output Power FCC Part 15.247 (b) (3) RSS-247 Clause 5.4 (d) Pass 3 Power Spectral Density FCC Part 15.247 (e) RSS-247 Clause 5.2 (b) Pass 4 Conducted Bandedge and Spurious Emission FCC Part 15.247 (d) RSS-247 Clause 5.5 Pass 5 Radiated Bandedge and Spurious Emission FCC Part 15.247 (d) FCC Part 15.209 FCC Part 15.205 RSS-247 Clause 5.5 RSS-GEN Clause 8.9 Pass 6 Conducted Emission Test for AC Power Port FCC Part 15.207 RSS-GEN Clause 8.8 Pass 7 Antenna Requirement FCC Part 15.203 RSS-GEN Clause 6.8 Pass Note: 1.This test report is only published to and used by the applicant, and it is not for evidence purpose in China. 2. The measurement result for the sample received is <Pass> according to < CFR 47 FCC PART 15 SUBPART C >< ISED RSS-247 > when <Accuracy Method> decision rule is applied. REPORT NO.: 4790053515-1 Page 4 of 84 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0087 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS ................................................................................. 6 2. TEST METHODOLOGY ..................................................................................................... 7 3. FACILITIES AND ACCREDITATION ................................................................................. 7 4. CALIBRATION AND UNCERTAINTY ................................................................................ 8 4.1. MEASURING INSTRUMENT CALIBRATION .............................................................. 8 4.2. MEASUREMENT UNCERTAINTY ............................................................................... 8 5. EQUIPMENT UNDER TEST ............................................................................................... 9 5.1. DESCRIPTION OF EUT .............................................................................................. 9 5.2. CHANNEL LIST ........................................................................................................... 9 5.3. MAXIMUM PEAK OUTPUT POWER ........................................................................... 9 5.4. TEST CHANNEL CONFIGURATION ........................................................................... 9 5.5. THE WORSE CASE POWER SETTING PARAMETER ..............................................10 5.6. DESCRIPTION OF AVAILABLE ANTENNAS .............................................................10 5.7. DESCRIPTION OF TEST SETUP ...............................................................................11 6. MEASURING INSTRUMENT AND SOFTWARE USED ....................................................12 7. ANTENNA PORT TEST RESULTS ...................................................................................14 7.1. ON TIME AND DUTY CYCLE .....................................................................................14 7.2. 6 dB DTS BANDWIDTH AND 99 % OCCUPIED BANDWIDTH ..................................15 7.3. CONDUCTED OUTPUT POWER ...............................................................................17 7.4. POWER SPECTRAL DENSITY ..................................................................................18 7.5. CONDUCTED BANDEDGE AND SPURIOUS EMISSIONS ........................................20 8. RADIATED TEST RESULTS .............................................................................................22 8.1. RESTRICTED BANDEDGE ........................................................................................28 8.1.1. LE 1M MODE .......................................................................................................28 8.1.2. LE 2M MODE .......................................................................................................31 8.2. SPURIOUS EMISSIONS (1 GHz ~ 3 GHz) .................................................................34 8.2.1. LE 1M MODE ....................................................…

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The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. CFR 47 FCC PART 15 SUBPART C ISED RSS-247 ISSUE 2 CERTIFICATION TEST REPORT For IEEE 802.11a/b/g/n/ac 2T2R USB Wi-Fi Module Integrated BT 2.1+EDR/4.2/5.1 MODEL NUMBER: SKO.WB663U.3 FCC ID: 2AR82-SKOWB663U301 IC: 24728-SKOWB663U31 REPORT NUMBER: 4790053515-3 ISSUE DATE: August 17, 2021 Prepared for Guangzhou Shikun Electronics Co., Ltd NO.6 Liankun Road,Huangpu District,Guangzhou,China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Building 10, Innovation Technology Park, No. 1, Li Bin Road, Song Shan Lake Hi- Tech Development Zone Dongguan, 523808, People’s Republic of China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4790053515-3 Page 2 of 139 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No: 10-SL-F0088 This report shall not be r…

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