2A3SE-EM0Body Camera

ShenZhen Sky Blue Ocean Technology Co., Limited

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Application Details

Equipment Class: DTS - Digital Transmission System
Date of Grant: Aug 29, 2022
Application Purpose: Original Equipment
Date of Application: Aug 29, 2022
Equipment Note: Body Camera
Frequency Range: 2412.00000000 - 2462.00000000
Company: ShenZhen Sky Blue Ocean Technology Co., Limited
Country: China

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Users Manual

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Attestation Statements

ShenZhen Sky Blue Ocean Technology Co.,Limited Model Difference Data：2022.08.18 Product description: Body Camera Model name: EM0, EM1, EM2, EMXXXXX, EPXXXXX (X can be 0-9or A-Z or blank) Trade Name: Epoium FCC ID: 2A3SE-EM0 All the model are the same circuit and RF module, except model names . Regards Sincerely Client’s signature : Client’s name / title : ZHIGAO ZHANG（accountant） Contact information / address：Area A, 2st Floor, building E, Zhenbao Industrial Zone, No.38 Industrial Road West, Longhua Street Longhua District Shenzhen, China

Cover Letter(s)

ShenZhen Sky Blue Ocean Technology Co.,Limited (2022.08.24) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Body Camera / EM0 / FCC ID: 2A3SE- EM0 ) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☐ Internal Photos ☐ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. 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. Please contact me if there is any information you may need. Sincerely, Signature: Name: ZHIGAO ZHANG Title: accountant

Cover Letter(s)

ShenZhen Sky Blue Ocean Technology Co.,Limited (2022.08.24) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: ZHIGAO ZHANG Title: accountant

External Photos

ID Label/Location Info

Model: EM0 FCC ID: 2A3SE-EM0 Label Location

Internal Photos

Internal Photos ANT

RF Exposure Info

Shenzhen CTB Testing Co., Ltd. FCC ID: 2A3SE-EM0 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this 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. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHZ)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • f(GHZ) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. 2.4GWIFI: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.412 7.57 5.717±18.006.31<51.959833.00YES 2.437 7.149 5.197±18.006.31<51.969963.00YES 2.462 7.002 5.017±18.006.31<51.980043.00YES 2.412 6.297 4.266±17.005.01<51.556753.00YES 2.437 6.413 4.386±17.005.01<51.564803.00YES 2.462 6.476 4.446±17.005.01<51.572803.00YES 2.412 6.643 4.626±17.005.01<51.556753.00YES 2.437 6.567 4.546±17.005.01<51.564803.00YES 2.462 6.405 4.376±17.005.01<51.572803.00YES 2.422 5.688 3.715±16.003.98<61.239133.00YES 2.437 5.565 3.605±16.003.98<71.242963.00YES 2.452 5.336 3.425±16.003.98<81.246783.00YES 802.11b 802.11g 802.11n( HT20) 802.11n( HT40) Conclusion: For the max result : 1.98004≤ FCC Limit 3.0 for 1g SAR.

Test Report

深圳市星源创科技有限公司 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD 天线测试报告 Antenna Test Report TC：为视特 MN：D2 RF：戴进平 MD：黄清清 MP：19918388579 1 2 深圳市星源创科技有限公司 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD 测试信息 Test information Main ANT Antenna bandAntenna state Antenna form Matchc hanges Note 2G NO3G 4G AUX ANT BT/WIFI2.4GFPCPIFANO GPSNO DIVNO 3 深圳市星源创科技有限公司 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD 测试环境 Test environment 测试项目测试设备 S参数（S-parameter) 1.电压驻波比(VSWR) 2.回波损耗（Rrtun Loss) 网络分析仪：Agilent8753ES 2.有源测试 (Active) 1.发射功率（TRP) 2.接收灵敏度（TIS） 3.屏灭/屏亮 1.暗室：5*3*3m（3D）Chamber 2.综测仪：Agilent8960 CMW500 3.无源测试（Passive) 1.天线增益(Gain) 2.天线效率（Efficiency) 1.暗室：5*3*3m（3D）Chamber 2.网络分析仪：Agilent 8753ES CMW500 4 深圳市星源创科技有限公司 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD 天线位置 Antenna position 5 深圳市星源创科技有限公司 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD 匹配电路 Matching circuit 电容（PF）电感（NH） E1(0402) E2(0402) E3(0402) E4(0402) 匹配电路原理图&位号图 6 深圳市星源创科技有限公司 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD 无源测试数据 Passive test data Frequency(MHZ)240024502483 VSWR 1.641.111.98 Return Loss(DB) -12.25-26.5-9.66 ANT1 S11-VSWR&Return Loss 7 深圳市星源创科技有限公司 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD 无源测试数据 Passive test data 8 深圳市星源创科技有限公司 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD 无源测试数据 Passive test data 9

Test Report

Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB220805002RFX Report Tel: 4008-707-283Web: http://www.ctb-lab.net Page 1 of 59 TEST REPORT Compiled by: Reviewed by: Approved by: Chen Zheng Arron Liu Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: Body Camera FCC ID: 2A3SE-EM0 Trademark: Epoium Model Number: EM0, EM1, EM2, EMXXXXX, EPXXXXX (X can be 0-9or A-Z or blank) Prepared For: ShenZhen Sky Blue Ocean Technology Co., Limited Address: Area A, 2st Floor, building E, Zhenbao Industrial Zone, No.38 Industrial Road West, Longhua Street Longhua District Shenzhen, China Manufacturer: ShenZhen Sky Blue Ocean Technology Co., Limited Address: Area A, 2st Floor, building E, Zhenbao Industrial Zone, No.38 Industrial Road West, Longhua Street Longhua District Shenzhen, China Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: Floor 1&2, Building A, No. 26 of Xinhe Road, Xinqiao Community, Xinqiao Street, Baoan District, Shenzhen, Guangdong China Sample Received Date: Aug. 1, 2022 Sample tested Date: Aug. 1, 2022 to Aug. 4, 2022 Issue Date: Aug. 4, 2022 Report No.: CTB220805002RFX Test Standards FCC Part15.247 ANSI C63.10:2013 Test Results PASS Remark: This is WIFI-2.4GHz band radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB220805002RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 59 TABLE OF CONTENT Test Report Declaration Page 1. VERSION .......................................................................... 3 2. TEST SUMMARY ................................................................... 4 3. MEASUREMENT UNCERTAINTY ..................................................... 5 4. PRODUCT INFORMATION AND TEST SETUP .......................................... 6 4.1 Product Information .................................................................... 6 4.2 Test Setup Configuration ............................................................... 7 4.3 Support Equipment .................................................................... 7 4.4 Channel List .......................................................................... 7 4.5 Test Mode ............................................................................ 7 4.6 Test Environment ...................................................................... 7 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................... 8 5.1 Test Facility ........................................................................... 8 5.2 Test Instrument Used .................................................................. 8 6. AC POWER LINE CONDUCTED EMISSION ............................................ 10 6.1 Block Diagram Of Test Setup .......................................................... 10 6.2 Limit ................................................................................ 10 6.3 Test procedure ....................................................................... 10 6.4 Test Result .......................................................................... 12 7. RADIATED SPURIOUS EMISSION ................................................... 14 7.1 Block Diagram Of Test Setup .......................................................... 14 7.2 Limit ................................................................................ 14 7.3 Test procedure ....................................................................... 15 7.4 Test Result .......................................................................... 16 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .......................... 33 8.1 Block Diagram Of Test Setup .......................................................... 33 8.2 Limit ................................................................................ 33 8.3 Test procedure ....................................................................... 33 8.4 Test Result .......................................................................... 34 9. COUDUCTED OUTPUT POWER ..................................................... 42 9.1 Block Diagram Of Test Setup .......................................................... 42 9.2 Limit ................................................................................ 42 9.3 Test procedure ....................................................................... 42 9.4 Test Result .......................................................................... 43 10. 6DB OCCUPIED BANDWIDTH ....................................................... 44 10.1 Block Diagram Of Test Setup ......................................................... 44 10.2 Limit ............................................................................... 44 10.3 Test procedure ...................................................................... 44 10.4 Test Result ......................................................................... 45 11. POWER SPECTRAL DENSITY ...................................................... 50 11.1 Block Diagram Of Test Setup ......................................................... 50 11.2 Limit ............................................................................... 50 11.3 Test procedure ...................................................................... 50 11.4 Test Result ......................................................................... 51 12. ANTENNA REQUIREMENT …

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Test Setup Photos

Radiated Emission Below 1G Above 1GHz Conducted Emission