2BBGN-D3Film scanner

ShenZhen KuHangXin Technology Co., Ltd Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [September 15, 2026] U.S. Agent Designation [ShenZhen KuHangXin Technology Co., Ltd] acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought FCC ID: 2BBGN-D3 Name and company of U.S. agent: [GLOCERTS TECHNOLOGY INC] Physical U.S. address of agent: [19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507] FRN of U.S. agent: [0036339737] Email address of U.S. agent: [[email protected]] Telephone of U.S.agent: (626) 588-8039 [GLOCERTS TECHNOLOGY INC] acknowledges their obligation to accept service of process on behalf of [ShenZhen KuHangXin Technology Co., Ltd]. [ShenZhen KuHangXin Technology Co., Ltd] with the FRN [0033844390] accepts its obligation to maintain an agent for service of process in the United States for no less than 1 year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, Signature Signature [Chao Wen] [Huiying Fan] [Manager] [Director] [ShenZhen KuHangXin Technology Co., Ltd] [GLOCERTS TECHNOLOGY INC]

ShenZhen KuHangXin Technology Co., Ltd (August 24, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID: 2BBGN-D3 [ShenZhen KuHangXin Technology Co., Ltd] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name) Chao Wen ShenZhen KuHangXin Technology Co., Ltd (August 24, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID: 2BBGN-D3 [ShenZhen KuHangXin Technology Co., Ltd] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Chao Wen

ShenZhen KuHangXin Technology Co., Ltd (August 24, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Film scanner / D3 / FCC ID: 2BBGN-D3) 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: Chao Wen Title: Manager

ShenZhen KuHangXin Technology Co., Ltd (September 16, 2026) 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 NTT 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: Chao Wen Title: Manager

FCC ID: 2BBGN-D3 External Photos

FCC ID LABEL: Label Location: FCC ID: 2BBGN-D3 Model No.: D3

FCC ID: 2BBGN-D3 RF Exposure Evaluation According to KDB 447498 D01 General RF Exposure Guidance v06 and part 2.1093， Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 5 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 Here, So a SAR test is not required 2.4GWIFI Mode Freque ncy (MHz) Max Power (dBm) Target power W/ tolerance (dBm) Max tune up power tolerance (dBm) Max Power (mW) Min. Distance (mm) Calc. thresholds limit 802.11b 2412 7.113 7±1 8.00 6.31 5.00 1.95983 3.00 2437 6.986 6±1 7.00 5.01 5.00 1.56480 3.00 2462 7.759 7±1 8.00 6.31 5.00 1.98004 3.00 802.11g 2412 7.507 7±1 8.00 6.31 5.00 1.95983 3.00 2437 7.474 7±1 8.00 6.31 5.00 1.96996 3.00 2462 7.268 7±1 8.00 6.31 5.00 1.98004 3.00 802.11n(H T20) 2412 7.123 7±1 8.00 6.31 5.00 1.95983 3.00 2437 7.195 7±1 8.00 6.31 5.00 1.96996 3.00 2462 6.891 6±1 7.00 5.01 5.00 1.57280 3.00 802.11n(H T40) 2422 7.02 7±1 8.00 6.31 5.00 1.96389 3.00 2437 6.907 6±1 7.00 5.01 5.00 1.56480 3.00 2452 6.795 6±1 7.00 5.01 5.00 1.56960 3.00

ApplicationReport 2.4-GHzInvertedFAntenna ABSTRACT Thisdocumentdescribesaprinted-circuitboard(PCB)designthatcanbeusedwithall2.4-GHz transceiversandtransmittersfromTexasInstruments™.Themaximumgainismeasuredtobe+3.3dBi, andtheoverallsizerequirementsforthisantennaare25.7×7.5mm.Thus,thisantennaiscompact,low cost,andhighperformance. 1 2 3 Contents DescriptionofInvertedFAntennaDesign ................................................................................ 2 1.1ImplementationofInvertedFAntenna...........................................................................2 Results........................................................................................................................3 2.1RadiationPattern ................................................................................................... 3 2.2Reflection...........................................................................................................9 2.3Bandwidth..........................................................................................................9 Conclusion .................................................................................................................. 10 2.4-GHzInvertedFAntenna 1 DescriptionofInvertedFAntennaDesign 1DescriptionofInvertedFAntennaDesign 1.1ImplementationofInvertedFAntenna Smallchangesoftheantennadimensionsmayhavelargeimpactontheperformance.Thereforeitis stronglyrecommendedtomakeanexactcopyofthereferencedesigntoachieveoptimumperformance. TheeasiestwaytoimplementtheantennaistoimportthegerberorDXFfileshowingtheantennalayout. ThesefilesarenamedIFA_USB.splandIFA_USB.dxfrespectivelyandareincludedintheCC2511USB donglereferencedesignavailable.Theimportedfilecanbeusedasatemplatewhendrawingtheantenna. Byusingthisprocedureitshouldbepossibletomakeanexactcopy.IfthePCBCADtoolbeinguseddoes notsupportimportofDXForgerberfiles,Figure3andTable1shouldbeusedtoensurecorrect implementation.ItisrecommendedtogenerateagerberfileforcomparisonwithIFA_USB.splwhen makingamanualimplementation.Mostgerberviewershavethepossibilitytoimportseveralgerberfilesat thesametime.Thusbyplacingthegerberfile,showingthemanuallyimplementedantenna,ontopof IFA_USB.splitiseasytoverifythattheantennaiscorrectlyimplemented.Itisalsorecommendedtouse thesamethicknessandtypeofPCBmaterialasusedinthereferencedesign.InformationaboutthePCB canbefoundinaseparatereadmefileincludedinthereferencedesign.Tocompensatefora thicker/thinnerPCBtheantennacouldbemadeslightlyshorter/longer. Figure3:AntennaDimensions L10.93mm L22.70mm L35.00mm L42.64mm L52.00mm L64.90mm W10.90mm W20.50mm D10.50mm D20.30mm D30.30mm D40.50mm D51.40mm D61.70mm Table1:AntennaDimensions Results 2Results Figure3showstheXYplaneverticalpolarization. Figure3.XYPlane–VerticalPolarization 3 2.4-GHzInvertedFAntenna Results Figure4showstheXYplanehorizontalpolarization. Figure4.XYPlane–HorizontalPolarization 2.4-GHzInvertedFAntenna 4 Results Figure5showstheXZplaneverticalpolarization. Figure5.XZPlane–VerticalPolarization 5 2.4-GHzInvertedFAntenna Results Figure6showstheXZplanehorizontalpolarization. Figure6.XZPlane–HorizontalPolarization 2.4-GHzInvertedFAntenna 6 Results Figure7showstheYZplaneverticalpolarization. Figure7.YZPlane–VerticalPolarization 7 2.4-GHzInvertedFAntenna Results Figure8showstheYZplanehorizontalpolarization. Figure8.YZPlane–HorizontalPolarization 2.4-GHzInvertedFAntenna 8 Results 2.2Reflection Figure9showsthattheIFAensureslessthan10%reflectionoftheavailablepowerforabandwidthof morethan300MHz.Alargebandwidthmakestheantennalesssensitivetodetuningbecauseofplastic encapsulationorotherobjectsinthevicinityoftheantenna. Figure9.MeasuredReflectionatFeedPointofAntenna 2.3Bandwidth AnotherwayofmeasuringthebandwidthaftertheantennaisimplementedonaPCBandconnectedtoa transmitteristowritetestsoftwarethatstepsacarrieracrossthefrequencybandofinterest.Byusingthe maximumholdfunctiononaspectrumanalyzer,thevariationinoutputpoweracrossfrequencycaneasily bemeasured. 9 2.4-GHzInvertedFAntenna Conclusion Figure10showshowtheoutputpowervariesontheIFAwhenthePCBishorizontallyorientedandthe receivingantennahashorizontalpolarization.Thismeasurementwasnotperformedinananechoic chamber,thusthegraphshowsonlytherelativevariationforthegivenfrequencyband. Figure10.BandwidthofIFA 3Conclusion ThePCBantennapresentedinthisdocumentperformswellforallfrequenciesinthe2.4-GHzISMband. Exceptfortwonarrowdips,theantennahasanomnidirectionalradiationpatternintheplaneofthePCB. Thesepropertieswillensurestableperformanceregardlessofoperatingfrequencyandpositioningofthe antenna.Table2liststhemostimportantpropertiesfortheIFA. Table2.SummaryofIFAProperties GaininXYplane1.1dBi GaininXZplane3.3dBi GaininYZplane1.6dBi Reflection<–15dB Antennasize25.7×7.5mm 4References 1.CC2430DBReferenceDesign 2.4-GHzInvertedFAntenna 10 RevisionHistory RevisionHistory NOTE:Pagenumbersforpreviousrevisionsmaydifferfrompagenumbersinthecurrentversion. ChangesfromBRevision(April2008)toCRevision....................................................................................................Page • • Changed+3.3dBtobe+3.3dBi........................................................................................................ ChangeddBinTable2todBi.......................................................................................................... 1 11 11 RevisionHistory

Shenzhen NTT Testing Technology Co.,Ltd. Report No.: SZNTT26036981E1-2 Test Report Tel:0755-27889935 Web:http://www.ntt-testing.com Page 1 of 59 TEST REPORT Applicant : ShenZhen KuHangXin Technology Co., Ltd Address : East 3rd Floor, the 8th Building, Tianfu'an Industrial Park, LeZhujiao, Hangcheng Street, Bao'an District, Shenzhen Manufacturer : ShenZhen KuHangXin Technology Co., Ltd Address : East 3rd Floor, the 8th Building, Tianfu'an Industrial Park, LeZhujiao, Hangcheng Street, Bao'an District, Shenzhen Product Name : Film scanner Model Number : D3 Trademark : N/A FCC ID : 2BBGN-D3 Test Date : Aug. 07, 2026 to Sep. 16, 2026 Date of Report : Sep. 16, 2026 Test Result : This device described above has been tested by BKC, and the test results show that the equipment under test (EUT) is in compliance with the Standard requirements. And it is applicable only to the tested sample identified in the report. Test Procedure Used: Standards : FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10-2020 + Cor. 1-2023+C63.10a-2024 + Errata to C63.10a-2024 Prepared by(Test Engineer): Gary Lu Reviewer(Supervisor): Cindy Qin Approved(Manager): Abel Yu Shenzhen NTT Testing Technology Co.,Ltd. Report No.: SZNTT26036981E1-2 Test Report Tel:0755-27889935 Web:http://www.ntt-testing.com Page 2 of 59 TABLE OF CONTENT 1. General Information .................................................................................... 5 1.1. Description of Device (EUT) ...................................................................................................................... 5 1.2. Channel List .................................................................................................................................................. 5 1.3. Test configuration ......................................................................................................................................... 5 1.4. Summary of test result ................................................................................................................................ 6 1.5. Special Accessories and Auxiliary Equipment ........................................................................................ 6 1.6. Test mode ...................................................................................................................................................... 6 1.7. Block Diagram .............................................................................................................................................. 7 1.8. Test Conditions ............................................................................................................................................. 7 1.9. Measurement Uncertainty (95% confidence levels, k=2) ..................................................................... 7 1.10. Test Facility ................................................................................................................................................. 8 1.11. Test Equipment ........................................................................................................................................... 8 2. Conducted emission at the mains terminals test .................................. 10 2.1. Limit .............................................................................................................................................................. 10 2.2. Test Setup ................................................................ ................................................................................... 10 2.3. Test Procedure ........................................................................................................................................... 10 2.4. Test Result ................................................................................................................................................... 11 3. Radiated Spurious Emissions ................................................................. 13 3.1. Limit .............................................................................................................................................................. 13 3.2. Test Setup ................................................................................................................................................... 14 3.3. Test Procedure ........................................................................................................................................... 16 3.4. Test Result .................................................................................................................................................. 17 4. Duty cycle .................................................................................................. 25 4.1. Limit .............................................................................................................................................................. 25 4.2. Test Setup ................................................................................................................................................... 25 4.3. Test Procedure ........................................................................................................................................... 25 4.4. Test Result .................................................................................................................................................. 25 5. Conducted Spurious Emissions .............................................................. 30 5.1. Limit .............................................................................................................................................................. 30 5.2. Test Setup ................................................................ ................................................................................... 30 5.3. Test Procedure ..............................................…

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FCC ID: 2BBGN-D3 Test Photos