2AOW4-KTX433-USB433MHz Transceiver with USB/RS232C interface

CM GLOBAL 1201 N. 4TH STREET, WATERTOWN, WI 53098, USA Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2024-03-27 FCC ID: 2AOW4-KTX433-USB Ref. #1: Attestation Statements Part 2.911(d)(5)(i) Filing CM GLOBAL 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. Ref. #2: Attestation Statements Part 2.911(d)(5)(ii) Filing CM GLOBAL 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. Applicant: CM GLOBAL Address: 1201 N. 4TH STREET, WATERTOWN, WI 53098, USA Contact Person: LISA M SMALL Tel.: +920 567 0327 Email: [email protected] Sincerely, Signature:

CM GLOBAL U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: CM GLOBAL FRN: 0027178813 Contact Name: LISA M SMALL Street Address: 1201 N. 4TH STREET, WATERTOWN, WI 53098, USA City/Province/Zip: WATERTOWN, WI 53098 Telephone No: +920 567 0327 Email: [email protected] This letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: Mar. 27, 2024 Signed by (Printed Name/Title): LISA M SMALL/Manager The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: CM GLOBAL FRN: 0027178813 Grantee Code: 2AOW4 FCC ID: 2AOW4-KTX433-USB Contact Name: LISA M SMALL Street Address: 1201 N. 4TH STREET, WATERTOWN, WI 53098, USA Telephone No: +920 567 0327 Email: [email protected] Applicant Signature: Date: Mar. 27, 2024 Signed by (Printed Name/Title): LISA M SMALL/Manager

Shenzhen YXS Electronic Co., Ltd www.yxs-rf.com 521K, 5F, Xusheng R&D Building, Xifa B Industrial Area, Gonghe Industrial Rd., xixiang St., Bao 'an District,Shenzhen, [email protected] 0 APPELLATION： 433M Folding Rubber Rod Antenna PART NUMBER： YXS-433-WZ108 Manufacturer Technical Quality Project Developing Client Materials Engineer Engineer Approval R & D System PRODUCT SPECIFICATION SHEET Shenzhen YXS Electronic Co., Ltd www.yxs-rf.com 521K, 5F, Xusheng R&D Building, Xifa B Industrial Area, Gonghe Industrial Rd., xixiang St., Bao 'an District,Shenzhen, [email protected] 1 1、 PRODUCT TECHNICAL SPECIFICATION Electrical Specifications Frequency Range (MHz) 420-450MHZ Bandwidth (MHz) 30 Input Impendence Input Impendence (Ω) 50 V.S.W.R ≤1.7 Polarization Type Vertical Lightning Protection DC Ground Power Capacity (w) 50 Mechanical Specifications Antenna Length (mm) 108 Radiator Copper Cuprum Connect Type SMA-J Working Temp(°C) -40~60 Storage Temperature(°C) -20~40 Radome Color Black Radome Material TPEE Weight (g) 8 Shenzhen YXS Electronic Co., Ltd www.yxs-rf.com 521K, 5F, Xusheng R&D Building, Xifa B Industrial Area, Gonghe Industrial Rd., xixiang St., Bao 'an District,Shenzhen, [email protected] 2 2、 Product Introduction This antenna is widely used in devices such as walkie talkies and wireless meter readers. The antenna has the advantages of beautiful appearance, compact structure, and easy installation 3、 PRODUCT SPECIFICATION CHART 4、 TEST DATA Shenzhen YXS Electronic Co., Ltd www.yxs-rf.com 521K, 5F, Xusheng R&D Building, Xifa B Industrial Area, Gonghe Industrial Rd., xixiang St., Bao 'an District,Shenzhen, [email protected] 3

CM GLOBAL 1201 N. 4TH STREET, WATERTOWN, WI 53098, USA Date：2024/03/27 Product Model Number: KTX433-USB, KTX433-RS232C FCC ID: 2AOW4-KTX433-USB To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following: Testing Approval applications and procedures We declare that CORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out byORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Contact Listed on FCC Wesbite Title: Manager Email: [email protected] Telephone: +920 567 0327 On behalf of: CM GLOBAL

CM GLOBAL 1201 N. 4TH STREET, WATERTOWN, WI 53098, USA Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: March 27, 2024 Subject; Request for Confidentiality FCC ID: 2AOW4-KTX433-USB To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure Software Security Requirements for UNII devices In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: LISA M SMALL Title: Manager

FCC ID: 2AOW4-KTX433-USB Page 1 of 4 Report No.: CTL2401192062-WF External Photos of EUT Antenna FCC ID: 2AOW4-KTX433-USB Page 2 of 4 Report No.: CTL2401192062-WF FCC ID: 2AOW4-KTX433-USB Page 3 of 4 Report No.: CTL2401192062-WF FCC ID: 2AOW4-KTX433-USB Page 4 of 4 Report No.: CTL2401192062-WF

FCC ID: 2AOW4-KTX433-USB Page 1 of 1 Report No.: CTL2401192062-WF FCC ID Label Information Label location: Size: L1.0cm*W0.5cm 433MHz Transceiver with USB/RS232C interface Model: KTX433-USB FCC ID: 2AOW4-KTX433-USB

FCCID:2AOW4-KTX433-USBPage 1 of 5 ReportNo.:CTL2401192062-WF InternalPhotosofEUT FCCID:2AOW4-KTX433-USBPage 2 of 5 ReportNo.:CTL2401192062-WF FCCID:2AOW4-KTX433-USBPage 3 of 5 ReportNo.:CTL2401192062-WF FCCID:2AOW4-KTX433-USBPage 4 of 5 ReportNo.:CTL2401192062-WF FCCID:2AOW4-KTX433-USBPage 5 of 5 ReportNo.:CTL2401192062-WF

RF Exposure evaluation FCC ID: 2AOW4-KTX433-USB Exposure category: General population/uncontrolled environment EUT Type: Production Unit Device Type: Mobile Device 1. Reference According to §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 §1.1310 and §2.1091 RF exposure is calculated. KDB447498 D01: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 2. Limit Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 1842/f 61.4 / / 1.63 4.89/f 0.163 / / (100) * (900/f 2 )* 1.0 f/300 5 6 6 6 6 6 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 824/f 27.5 / / 1.63 2.19/f 0.073 / / (100) * (180/f 2 )* 0.2 f/1500 1.0 30 30 30 30 30 F=frequency in MHz *=Plane-wave equivalent power density 3. MPE Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna 4.Antenna Information The device evaluated with antennas certificated as follows provided by manufacturer. Antenna model Antenna type and antenna number Operate frequency band Maximum antenna gain 450MHz Antenna External Antenna 430 MHz to 470 MHz 1.83dBi 5.Conducted power and Manufacturing Tolerance Frequency Output Power[dBm] 432.125MHz -21.13 439.125MHz -22.94 432.125MHz: d=3m EIRP(dBm)=E(dBμV/m)-95.2 W=10 ((dBm-30)/10) pt= 74.07dBuV/m =-21.13dBm=0.0077mW at 432.125MHz 439.125MHz: pt= 72.26dBuV/m =-22.94dBm=0.0051mW at 439.125MHz 6.Standalone MPE Result As declared by the Applicant, the EUT is a wireless device used in a fix application, at least 20 cm from any body part of the user or nearby persons; from the maximum EUT RF output power, the minimum separation distance, r =20cm, as well as the gain of the used antenna, the RF power density can be obtained. Frequency (MHz) Minimum Separation Distance (cm) Max. Output power With Tune-Up Antenna Gain (linear) MPE (mW/cm 2 ) MPE Limits (mW/cm 2 ) Test Results dBm mW 432.125 20 -21.13 0.0077 1.5241 0.00001 0.2881 PASS 439.125 20 -22.94 0.0051 1.5241 0.00001 0.2928 PASS Remark: 1. Output power (Average) including turn-up tolerance; 2. Output power was adjust to duty cycle at 100% if measured duty cycle less than 98%; 3. MPE evaluate distance is 20cm from user manual provide by manufacturer. 7.Summary simultaneous transmission results This product does not support simultaneous signal transmission. 8.Conclusion The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure of mobile device. ----------------THE END OF REPORT---------------

ShenzhenCTLTestingTechnologyCo.,Ltd. Tel:+86-755-89486194E-mail:[email protected] TESTREPORT 47CFRFCCPart15SubpartC15.231 ReportReferenceNo.....................:CTL2401192062-WF Compiledby: (position+printedname+signature) HappyGuo (Fileadministrators) Testedby: (position+printedname+signature) WuqiangWu (TestEngineer) Approvedby: (position+printedname+signature) IvanXie (Manager) ProductName.................................: 433MHzTransceiverwithUSB/RS232Cinterface Model/Typereference....................:KTX433-USB ListModel(s)....................................:KTX433-RS232C TradeMark.......................................: KINGLORD FCCID...............................................: 2AOW4-KTX433-USB Applicant’sname...........................: CMGLOBAL Addressofapplicant.....................: 1201N.4THSTREET,WATERTOWN,WI53098,USA TestFirm...........................................:ShenzhenCTLTestingTechnologyCo.,Ltd. AddressofTestFirm.....................: ZoneA,1stFloor,Warehouse2,BaishaLogisticsCompany,No. 3011ShaheWestRoad,NanshanDistrict,Shenzhen Testspecification...........................: Standard............................................: 47CFRFCCPart15SubpartC15.231 TRFOriginator..................................: ShenzhenCTLTestingTechnologyCo.,Ltd. MasterTRF.......................................:Dated2011-01 Dateofreceiptoftestitem..........: Jan.26,2024 DateofTestDate ............................ : Jan.26,2024-Mar.14,2024 DateofIssue....................................: Mar.15,2024 Result ................................................ : Pass ShenzhenCTLTestingTechnologyCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenCTLTestingTechnologyCo.,Ltd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenCTLTestingTechnologyCo.,Ltd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. V1.0Page2of37ReportNo.:CTL2401192062-WF TESTREPORT TestReportNo.: CTL2401192062-WF Mar.15,2024 Dateofissue EquipmentunderTest:433MHzTransceiverwithUSB/RS232Cinterface SampleNo. :CTL2401192062 Model/Type: KTX433-USB ListedModels: KTX433-RS232C Applicant: CMGLOBAL Address : 1201N.4THSTREET,WATERTOWN,WI53098,USA Manufacturer: KINGLORDELECTRONICS(HK)LTD. Address : FLAT8,14/F.,WAHYIUINDUSTRIALCENTRE,30-32AU PUIWANSTREET,FOTAN,N.T.,HONGKONG TestresultPass* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedpage5. Thetestresultspresentedinthisreportrelateonlytotheobjecttested. Thisreportshallnotbereproduced,exceptinfull,withoutthewrittenapprovaloftheissuingtesting laboratory. V1.0Page3of37ReportNo.:CTL2401192062-WF **ModifiedHistory** VersionDescriptionIssuedDataReportNo.Remark Version1.0InitialTestReportRelease2024-03-15CTL2401192062-WFTracyQi V1.0Page4of37ReportNo.:CTL2401192062-WF TableofContentsPage 1.SUMMARY..................................................................................................................................................................5 1.1.TESTSTANDARDS..........................................................................................................................................................5 1.2.TESTDESCRIPTION........................................................................................................................................................5 1.3.TESTFACILITY...............................................................................................................................................................6 1.4.AUXILIARYTESTEQUIPMENTINFORMATION......................................................................................................................6 1.5.STATEMENTOFTHEMEASUREMENTUNCERTAINTY.............................................................................................................6 2.GENERALINFORMATION.............................................................................................................................................8 2.1.ENVIRONMENTALCONDITIONS........................................................................................................................................8 2.2.GENERALDESCRIPTIONOFEUT......................................................................................................................................8 2.3.DESCRIPTIONOFTESTMODESANDTESTFREQUENCY........................................................................................................8 2.4.EQUIPMENTSUSEDDURINGTHETEST.............................................................................................................................9 2.5.RELATEDSUBMITTAL(S)/GRANT(S).............................................................................................................................10 2.6.MODIFICATIONS.........................................................................................................................................................10 3.TESTCONDITIONSANDRESULTS...............................................................................................................................11 3.1.CONDUCTEDEMISSION(ACMAIN)..............................................................................................................................11 3.2.RADIATEDEMISSION...................................................................................................................................................14 3.3.20DBBANDWIDTH.....................................................................................................................................................22 3.4.DEACTIVATIONTIME...................................................................................................................................................24 3.5.ANTENNAREQUIREMENT...............................................................................................…

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FCC ID: 2AOW4-KTX433-USB Page 1 of 2 Report No.: CTL2401192062-WF Test Setup Photos of the EUT FCC ID: 2AOW4-KTX433-USB Page 2 of 2 Report No.: CTL2401192062-WF