IK4W7PROReversing system

FCCStatement ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice, pursuanttoPart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonable protectionagainstharmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates usesandcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewith theinstructions,maycauseharmfulinterferencetoradiocommunications.However,thereis noguaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoes causeharmfulinterferencetoradioortelevisionreception,whichcanbedeterminedbyturning theequipmentoffandon,theuserisencouragedtotrytocorrecttheinterferencebyoneor moreofthefollowingmeasures: --Reorientorrelocatethereceivingantenna. --Increasetheseparationbetweentheequipmentandreceiver. --Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiveris connected. --Consultthedealeroranexperiencedradio/TVtechnicianforhelp. Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothefollowingtwo conditions: (1)Thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptany interferencereceived,includinginterferencethatmaycauseundesiredoperation. Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliance couldvoidtheuser'sauthoritytooperatetheequipment.

Model No.: W7 PRO

29.8mm 19.8mm

Model No.: W7 PRO

Page 1 of 2 Product Name: Reversing system Model No.：W7 PRO, K7 PRO, RVW-AF1 FCC ID：IK4W7PRO RF Exposure Evaluation 1.1 RF Exposure Compliance Requirement 1.1.1 Limits According to FCC Part1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in part1.1307(b) F= Frequency in MHz Friis Formula Friis transmission formula: Pd = (Pout*G)/(4* Pi * R 2) Where Pd = power density in mW/cm2 Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/cm2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. 1.1.2 Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. Page 2 of 2 1.1.3 EUT RF Exposure Evaluation Antenna Gain: 2dBi Antenna Gain: The maximum Gain measured in fully anechoic chamber is 1.58 in linear scale. Output Power Into Antenna & RF Exposure Evaluation Distance: Channel Frequency (MHz) Max Conducted Peak Output Power (dBm) Output Power to Antenna (mW) Power Density at R = 20 cm (mW/cm 2 ) Limit Result Lowest 2406.5 16.76 47.4242 0.0150 1.0 PASS Note: Refer to report No. BLA-EMC-202102-A0702 for EUT test Max Conducted Peak Output Power value. The distance r (4th column) calculated from the Fries transmission formula is far greater than 20 cm separation Requirement

Page 1 of53 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Add: Building C, No. 107, Shihuan Road, Shiyan Sub-District, Baoan District, Shenzhen, Guangdong Province, China Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com TEST REPORT Product Name : Reversing system Brand Mark : N/A Model No. : W7 PRO, K7 PRO, RVW-AF1 FCC ID : IK4W7PRO Report Number : BLA-EMC-202102-A0702 Date of Sample Receipt : 2021/2/2 Date of Test : 2021/2/2 to 2021/3/31 Date of Issue : 2021/4/2 Test Standard : 47 CFR Part 15, Subpart C 15.247 Test Result : Pass Prepared for: Shenzhen Auto-vox Technology Co.,Ltd. 602-605, building B, chengshanhai center, Bantian street, Longgang District, Shenzhen Prepared by: BlueAsia of Technical Services(Shenzhen) Co.,Ltd. Building C, No. 107, Shihuan Road, Shiyan Sub-District, Baoan District, Shenzhen, Guangdong Province, China TEL: +86-755-23059481 Compiled by: Review by: Approved by: Date: 2021/4/2 Report No.: BLA-EMC-202102-A0702 Page 2 of53 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com REPORT REVISE RECORD Version No. Date Description 00 2021/4/2 Original Report No.: BLA-EMC-202102-A0702 Page 3 of53 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com TABLE OF CONTENTS 1 TEST SUMMARY ........................................................................................................................................5 2 GENERAL INFORMATION .........................................................................................................................6 3 GENERAL DESCRIPTION OF E.U.T. .........................................................................................................6 4 TEST ENVIRONMENT ................................................................................................................................8 5 TEST MODE ................................................................................................................................................8 6 MEASUREMENT UNCERTAINTY ..............................................................................................................8 7 DESCRIPTION OF SUPPORT UNIT...........................................................................................................9 8 LABORATORY LOCATION .........................................................................................................................9 9 TEST INSTRUMENTS LIST ..................................................................................................................... 10 10 CONDUCTED BAND EDGES MEASUREMENT ..................................................................................... 13 10.1 LIMITS .............................................................................................................................................................. 13 10.2 BLOCK DIAGRAM OF TEST SETUP ..................................................................................................................... 13 10.3 TEST DATA .......................................................................................................................................................... 14 11 RADIATED SPURIOUS EMISSIONS ....................................................................................................... 15 11.1 LIMITS .............................................................................................................................................................. 15 11.2 BLOCK DIAGRAM OF TEST SETUP ..................................................................................................................... 16 11.3 PROCEDURE ..................................................................................................................................................... 16 11.4 TEST DATA .......................................................................................................................................................... 18 12 RADIATED EMISSIONS WHICH FALL IN THE RESTRICTED BANDS................................................. 26 12.1 LIMITS .............................................................................................................................................................. 26 12.2 BLOCK DIAGRAM OF TEST SETUP ..................................................................................................................... 27 12.3 PROCEDURE ..................................................................................................................................................... 27 12.4 TEST DATA .......................................................................................................................................................... 29 13 CONDUCTED SPURIOUS EMISSIONS .................................................................................................. 33 13.1 LIMITS .............................................................................................................................................................. 33 13.2 BLOCK DIAGRAM OF TEST SETUP ..................................................................................................................... 33 13.3 TEST DATA .......................................................................................................................................................... 33 14 POWER SPECTRUM DENSITY ............................................................................................................... 34 14.1 LIMITS .............................................................................................................................................................. 34 14.2 BLOCK DIAGRAM OF TEST SETUP ..................................................................................................................... 34 Report…

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Model No.: W7 PRO