2BUQO-CDX-PHTR2514The CDX Phone Transceiver is a device used to transmit speed commands to the CDX EV Controller.

CDX Phone Transceiver 2026 User Manual Version: 1.1 Publish date: 25/03/2026 CDX TECHNOLOGY EUROPE B.V. - CDX Phone Transceiver 1 Copyright Information in this document is subject to change without notice. Trademarks, trade names, service marks or service names owned or registered by any other company and used in this document are property of the respective companies. Disclaimer Information contained in this document is confidential, privileged and only for the information of the intended recipient and may not be used, published, or redistributed without the prior written consent of CDX Technology Europe B.V. Safety This product is designed to assist in improving safety on a go-karting track. While it may help reduce certain risks when used correctly, it does not eliminate hazards associated with go-karting activities and cannot replace proper track safe operating procedures, trained personnel, or compliance with applicable safety regulations. While every effort has been made to ensure the accuracy of the information contained in this manual, the manufacturer cannot be held responsible for errors, omissions, or inaccuracies in this publication. Copyright © 2026 CDX Technology Europe B.V. FCC ID: 2BUQO-CDX-PHTR2514 Contact details Address: Meander 551 6825 MD Arnhem The Netherlands General inquiries: https://www.cdx-technology.com Main office: +31 85 2006 480 Technical support: +31 6 1417 0924 Technical support email: [email protected] CDX TECHNOLOGY EUROPE B.V. - CDX Phone Transceiver 2 FCC statement Product name: CDX Phone Transceiver Responsible party: CDX Technology Europe B.V. Address: Meander 551, 6825 MD Arnhem, the Netherlands Website: https://www.cdx-technology.com Tel: +31 85 2006 480 E-mail: [email protected] This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference, and 2. This device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. CDX TECHNOLOGY EUROPE B.V. - CDX Phone Transceiver 3 DOCUMENT REVISIONS Version Details Date Author 0.1 Init user manual. 11-12-2025 TF 0.2 Updates to document. 16-12-2025 TF/WH 0.3 Added document. 17-12-2025 KKS 0.4 Added document. 18-12-2025 JFL/KKS 0.5 Updates to document. 12-01-2026 HV/CM 0.6 Minor improvements. 14-01-2026 WH 1.0 First version release. 15-01-2026 JFL/KKS 1.1 Processed feedback Applus. 25-03-2026 KKS CDX TECHNOLOGY EUROPE B.V. - CDX Phone Transceiver 4 TABLE OF CONTENTS 1 INTRODUCTION ................................................................................................................................. 5 1.1 Package contents ...................................................................................................................................................... 5 1.2 Compatible expansion components .......................................................................................................................... 5 1.3 Overview of product features .................................................................................................................................... 6 2 OPERATING INSTRUCTIONS ................................................................................................................ 7 2.1 CDX Phone Transceiver User Interface ...................................................................................................................... 7 2.2 Group speed control .................................................................................................................................................. 7 2.3 Individual speed control ............................................................................................................................................ 7 2.4 Synchronization between Remote controls ............................................................................................................... 8 2.5 Charging .................................................................................................................................................................... 8 3 SYSTEM CONFIGURATION .................................................................................................................. 9 3.1 Speed restriction ....................................................................................................................................................... 9 3.2 4 speed or 8 speed mode........................................................................................................................................... 9 3.3 Track ID and Track PIN ............................................................................................................................................... 9 3.4 Region ....................................................................................................................................................................... 9 4 TECHNICAL DATA ............................................................................................................................. 10 5 REFERENCES .............…

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EUTPHOTO(ExternalPhotos) TestModel:PhoneTransceiver FCCID:2BUQO-CDX-PHTR2514 ※※※※※ENDOFREPORT※※※※※

LABEL LOCATION FCC ID: 2BUQO-CDX-PHTR2514 LABEL:

EUTPHOTO(InternalPhotos) TestModel:PhoneTransceiver FCCID:2BUQO-CDX-PHTR2514 TXANT ※※※※※ENDOFREPORT※※※※※

FCCID:2BUQO-CDX-PHTR2514 RFEXPOSUREEVALUATION AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093, UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone 1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]*[√f (GHz) ]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, ForDSSS Frequency Field Strength Power Tune-up power Maxtune-up power Maxtune-up power Min. Distance Calc. thresholds limit (MHz)(dBuV/m)(dBm)(dBm)(dBm)(mW)(mm) 90879.51 -15.69-16±1 -15 0.0350.0057 3.0 Note:dBuV/mtodBm,dBm=dBuV/m-95.2. TheFieldStrengthtestresultsaredetailedonpage19oftheFCCreport,specificallyregardingthe fundamentalfieldstrength. Conclusion: 1.[(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]*[√f(GHz)]<3.0. 2.SARTestExclusionThresholdsis3.0forseparationdistance5mm.Therefore,SAR testisnotrequired.

ProjectNo.:ZKT-2601271930E Page 1 of 30 FCCTESTREPORT FCCID:2BUQO-CDX-PHTR2514 ReportNumber.....................................: ZKT-2601271930E DateofTest..........................................:Jan.28,2026toFeb.02,2026 Dateofissue.........................................:Feb.02,2026 Totalnumberofpages ........................ :30 TestResult..........................................: PASS TestingLaboratory...........................: ShenzhenZKTTechnologyCo.,Ltd. Address...............................................: 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname.............................: CDXTechnologyEuropeB.V. Address ............................................... : Meander551,6825MDArnhem,theNetherlands Manufacturer'sname ...................... : GeminiEmbeddedTechnologyBV Address...............................................: Meander551,6825MDArnhem,theNetherlands Testspecification: Standard................................................: FCCCFRTitle47Part15SubpartCSection15.249 ANSIC63.10-2020+Cor.1-2023 Testprocedure.....................................: / Non-standardtestmethod................:N/A TestReportFormNo........................: / TestReportForm(s)Originator.....: ZKTTesting MasterTRF........................................: Dated:2020-01-06 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname ..................................... :CDXPhoneTransceiver Trademark...........................................: CDX Model/Typereference ......................... : PhoneTransceiver Ratings .................................................. : Input:5V2.5A ProjectNo.:ZKT-2601271930E Page 2 of 30 Testingprocedureandtestinglocation: TestingLaboratory ....................................... : ShenzhenZKTTechnologyCo.,Ltd. Address............................................................:1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China JimLiu Testedby(name+signature) ....................... : JacksonFang Reviewer(name+signature) ....................... : LakeXie Approved(name+signature).......................: ProjectNo.:ZKT-2601271930E Page 3 of 30 TableofContents Page 1.VERSION..............................................................................................................4 2.TESTSUMMARY..................................................................................................5 2.1TESTFACILITY...................................................................................................6 2.2MEASUREMENTUNCERTAINTY......................................................................6 3.1GENERALDESCRIPTIONOFEUT....................................................................7 3.2TestSetupConfiguration.....................................................................................8 3.3SupportEquipment..............................................................................................9 4.EMCEMISSIONTEST........................................................................................12 4.1Conductedemissions........................................................................................12 4.1.1POWERLINECONDUCTEDEMISSIONLimits............................................12 4.1.2TESTPROCEDURE......................................................................................12 4.1.3DEVIATIONFROMTESTSTANDARD..........................................................12 4.1.4TESTSETUP.................................................................................................13 4.1.5EUTOPERATINGCONDITIONS...................................................................13 4.1.6TestResult.....................................................................................................14 4.2Radiatedemissions...........................................................................................16 4.2.1RadiatedEmissionLimits...............................................................................16 4.2.2TESTPROCEDURE......................................................................................17 4.2.3DEVIATIONFROMTESTSTANDARD..........................................................17 4.2.4TESTSETUP.................................................................................................17 4.2.5EUTOPERATINGCONDITIONS...................................................................18 4.2.6TESTRESULTS.............................................................................................18 5.RADIATEDBANDEMISSIONMEASUREMENT...............................................23 5.1TestRequirement:.............................................................................................23 5.2TESTPROCEDURE.........................................................................................23 5.3DEVIATIONFROMTESTSTANDARD.............................................................24 5.4TESTSETUP....................................................................................................24 5.5EUTOPERATINGCONDITIONS......................................................................24 5.6TESTRESULT..................................................................................................25 6.20DBOCCUPIEDBANDWIDTH........................................................................27 6.1TestSetup.........................................................................................................27 6.2Limit...................................................................................................................27 6.3Testprocedur…

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Application Note DN616 SWRA345A Page 1 of 20 Test Report for DN024 (CC-Antenna-DK Board #6) By Richard Wallace Table of Contents 1 SINGLE BAND MODE 2 1.1 OTA TEST RESULTS FOR FREQUENCY 868.000 MHZ 2 1.1.1 RP_868.000_tot 3 1.1.2 RP_868.000_hor 4 1.1.3 RP_868.000_ver 5 1.1.4 Radiation Patterns 6 2 DUAL BAND MODE 8 2.1 OTA TEST RESULTS FOR FREQUENCY 868.000 MHZ 8 2.1.1 RP_868.000_tot 9 2.1.2 RP_868.000_hor 10 2.1.3 RP_868.000_ver 11 2.1.4 Radiation Patterns 12 2.2 OTA TEST RESULTS FOR FREQUENCY 2440.000 MHZ 14 2.2.1 RP_2440.000_tot 15 2.2.2 RP_2440.000_hor 16 2.2.3 RP_2440.000_ver 17 2.2.4 Radiation Patterns 18 3 GENERAL INFORMATION 20 3.1 DOCUMENT HISTORY 20 Application Note DN616 SWRA345A Page 2 of 20 1 SINGLE BAND MODE 1.1 OTA Test Results for Frequency 868.000 MHz Total Radiated Power -0.10 dBm Peak EIRP 5.05 dBm Directivity 5.15 dBi Efficiency -0.10 dB Efficiency 97.67 % Gain 5.05 dBi NHPRP 45° -2.77 dBm NHPRP 45° / TRP -2.67 dB NHPRP 45° / TRP 54.13 % NHPRP 30° -4.79 dBm NHPRP 30° / TRP -4.69 dB NHPRP 30° / TRP 33.97 % NHPRP 22.5° -6.05 dBm NHPRP 22.5° / TRP -5.94 dB NHPRP 22.5° / TRP 25.44 % UHRP -3.75 dBm UHRP / TRP -3.65 dB UHRP / TRP 43.18 % LHRP -2.56 dBm LHRP / TRP -2.45 dB LHRP / TRP 56.82 % Front/Back Ratio 3.78 PhiBW 293.4 deg PhiBW Up 212.0 deg PhiBW Down 81.5 deg ThetaBW 75.5 deg ThetaBW Up 34.2 deg ThetaBW Down 41.3 deg Boresight Phi 135 deg Boresight Theta 180 deg Maximum Power 5.05 dBm Minimum Power -11.70 dBm Average Power 1.12 dBm Max/Min Ratio 16.75 dB Max/Avg Ratio 3.93 dB Min/Avg Ratio -12.82 dB Best Single Value 4.24 dBm Best Position Phi = 105 deg; Theta = 165 deg; Pol = Hor Application Note DN616 SWRA345A Page 3 of 20 1.1.1 RP_868.000_tot Azimuth (deg) Elevation 0 deg (dB) Elevation 15 deg (dB) Elevation 30 deg (dB) Elevation 45 deg (dB) Elevation 60 deg (dB) Elevation 75 deg (dB) Elevation 90 deg (dB) Elevation 105 deg (dB) 0.00 0.25 0.39 1.35 3.43 1.73 -5.42 -0.30 -1.15 15.00 0.56 0.37 1.37 3.47 1.19 -5.94 0.04 -0.08 30.00 0.88 0.68 0.82 3.18 -0.07 -6.04 0.26 0.31 45.00 1.34 0.44 0.53 2.36 -1.27 -6.48 -0.26 0.06 60.00 1.64 0.51 -0.41 1.44 -3.46 -6.03 -1.00 -0.73 75.00 2.01 0.10 -1.23 -0.02 -6.07 -5.69 -2.09 -2.04 90.00 2.22 -0.32 -1.66 -1.69 -9.13 -4.52 -2.91 -2.81 105.00 2.57 -0.53 -1.80 -3.33 -10.79 -3.13 -2.78 -2.56 120.00 2.91 0.02 -1.24 -4.45 -7.84 -2.01 -1.96 -0.90 135.00 3.29 0.63 0.12 -3.88 -5.87 -1.02 -1.04 0.54 150.00 3.49 1.65 1.01 -2.51 -3.72 -0.49 -0.70 1.28 165.00 3.89 2.38 2.13 -1.07 -2.39 -0.26 -0.87 1.59 180.00 4.07 3.22 2.77 0.30 -1.54 -0.09 -1.69 1.09 195.00 4.25 4.00 3.31 0.78 -0.98 -0.04 -2.74 0.28 210.00 4.27 4.36 3.39 0.89 -1.69 -0.14 -4.25 -0.91 225.00 4.34 4.47 3.33 0.08 -2.74 -0.60 -5.62 -2.26 240.00 3.84 4.47 3.03 -1.03 -5.09 -1.75 -6.37 -3.44 255.00 3.56 4.06 2.49 -2.53 -7.61 -3.19 -6.38 -4.16 270.00 3.12 3.30 1.85 -4.01 -7.48 -5.46 -5.22 -4.52 285.00 2.47 2.36 1.30 -3.41 -3.95 -7.27 -3.67 -3.85 300.00 1.79 1.53 1.08 -1.45 -1.97 -6.84 -2.34 -4.03 315.00 1.27 0.82 1.11 0.40 0.20 -5.90 -1.32 -3.68 330.00 0.85 0.38 1.24 1.79 1.19 -4.88 -0.82 -3.45 345.00 0.71 0.49 1.59 2.91 1.77 -4.89 -0.65 -2.37 360.00 0.31 0.39 1.62 3.39 1.42 -5.47 -0.34 -1.22 (continuation of the "RP_868.000_tot" table from column 9 ...) Azimuth (deg) Elevation 120 deg (dB) Elevation 135 deg (dB) Elevation 150 deg (dB) Elevation 165 deg (dB) Elevation 180 deg (dB) 0.00 0.51 4.19 3.56 2.37 1.46 15.00 0.49 4.36 3.61 2.41 1.16 30.00 -0.13 3.92 3.47 2.71 1.24 45.00 -1.95 3.16 3.49 3.11 1.75 60.00 -4.81 2.21 3.57 3.74 2.28 75.00 -7.98 1.23 3.66 3.97 3.21 90.00 -8.05 0.50 3.83 4.26 4.05 105.00 -4.18 0.15 4.12 4.59 4.69 120.00 -1.17 0.73 4.26 4.62 4.95 135.00 0.98 1.31 4.32 4.51 5.05 150.00 2.00 1.78 4.00 4.20 4.92 165.00 2.35 1.99 3.59 3.85 4.52 180.00 2.07 1.50 2.93 3.50 3.90 195.00 1.50 0.54 1.83 3.16 3.35 210.00 0.53 -0.82 0.74 3.10 2.84 225.00 -0.39 -3.53 -0.38 2.76 2.85 240.00 -1.43 -7.46 -1.74 2.67 2.84 255.00 -2.14 -11.70 -2.04 2.58 3.14 270.00 -2.22 -8.06 -1.31 2.58 3.28 285.00 -1.99 -3.70 0.05 2.61 3.46 300.00 -1.19 -0.94 1.21 2.44 3.55 315.00 -0.85 1.10 2.42 2.58 3.23 330.00 -0.13 2.52 2.82 2.34 2.92 345.00 0.09 3.54 3.43 2.15 2.11 360.00 0.63 4.01 3.49 2.22 1.70 Application Note DN616 SWRA345A Page 4 of 20 1.1.2 RP_868.000_hor Azimuth (deg) Elevation 0 deg (dB) Elevation 15 deg (dB) Elevation 30 deg (dB) Elevation 45 deg (dB) Elevation 60 deg (dB) Elevation 75 deg (dB) Elevation 90 deg (dB) Elevation 105 deg (dB) 0.0 -9.44 -14.82 -16.34 -8.91 -10.57 -15.91 -16.16 -10.41 15.0 -7.86 -11.19 -11.51 -6.28 -10.46 -12.91 -12.70 -7.31 30.0 -4.05 -6.25 -7.17 -4.41 -11.15 -9.80 -8.60 -5.47 45.0 -1.02 -3.34 -4.52 -3.91 -11.69 -8.25 -6.03 -4.03 60.0 0.60 -1.49 -3.48 -3.48 -13.35 -6.51 -4.53 -3.17 75.0 1.67 -0.80 -2.93 -3.97 -15.27 -5.91 -3.93 -3.14 90.0 1.97 -0.78 -2.76 -4.30 -16.63 -5.40 -3.69 -3.11 105.0 1.74 -1.39 -3.49 -4.88 -17.24 -5.53 -3.85 -3.55 120.0 0.94 -2.49 -4.73 -5.90 -18.51 -6.07 -4.33 -3.46 135.0 -0.37 -4.74 -6.58 -7.53 -21.81 -6.93 -4.84 -4.45 150.0 -2.92 -8.55 -10.02 -9.68 -22.90 -7.93 -6.09 -5.25 165.0 -7.02 -17.21 -13.69 -12.60 -22.90 -10.64 -7.62 -7.07 180.0 -13.09 -11.28 -11.16 -14.66 -22.90 -12.69 -10.98 -9.98 195.0 -9.32 -5.18 -6.19 -11.82 -21.59 -13.01 -15.92 -14.93 210.0 -4.20 -1.73 -3.13 -8.54 -17.29 -10.69 -18.19 -16.23 225.0 -1.37 0.37 -0.66 -5.89 -13.37 -9.26 -12.31 -10.93 240.0 0.53 1.91 0.63 -4.46 -11.88 -8.18 -8.63 -8.06 255.0 1.81 2.50 1.49 -3.77 -10.68 -7.51 -6.89 -6.10 270.0 2.50 2.63 1.60 -4.18 -10.64 -8.19 -6.18 -5.24 285.0 2.38 2.24 1.20 -5.26 -11.09 -9.12 -6.08 -4.73 300.0 1.64 1.39 0.21 -7.20 -13.35 -10.05 -6.56 -6.13 315.0 0.38 -0.35 -1.81 -11.03 -16.87 -11.72 -8.29 -7.76 330.0 -1.59 -2.84 -4.17 -18.07 -18.11 -13.71 -10.26 -11.12 345.0 -4.71 -6.35 -8.73 -14.71 -15.59 -16.67 -15.53 -13.20 360.0 -9.06 -11.00 -15.19 -10.44 -12.30 -16.83 -20.45 -12.78 (continuation of the "RP_868.000_hor" table from column 9 ...) Azimuth (deg) Elevation 120 deg (dB) Elevation 135 deg (dB) Elevation 150 deg (dB) Elevation 165 deg (dB) Elevation 180 deg (…

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EUTTESTPHOTO TestModel:PhoneTransceiver FCCID:2BUQO-CDX-PHTR2514