2AOKB-T5216Purifier P1

Anker Innovations Limited

Application Details

Equipment Class: DTS - Digital Transmission System
Date of Grant: Jul 03, 2026
Application Purpose: Original Equipment
Equipment Note: Purifier P1
Frequency Range: 2402.00000000 - 2480.00000000
Company: Anker Innovations Limited
Country: Hong Kong

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Attestation Statements

AnkerInnovationsLimited Rev1/26/2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-06-30 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2AOKB-T5216 (“AnkerInnovationsLimited”)certifiesthattheequipmentforwhichauthorizationissoughtisnot “covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903of theFCCrules. (“AnkerInnovationsLimited”)certifiesthattheequipmentforwhichauthorizationissoughtdoesnot includecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc.oranyofits successorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyofits successorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446 D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature) (Applicantprintedname:JustinZhou/TestingandComplianceDirector) AnkerInnovationsLimited Rev1/26/2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-06-30 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2AOKB-T5216 (“AnkerInnovationsLimited”)certifiesthat,asofthedateofthefilingoftheapplication,theapplicantis notidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiariesoraffiliates)as anentityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname:JustinZhou/TestingandComplianceDirector)

Cover Letter(s)

AnkerInnovationsLimited Date：2026-6-30 ProductModelNumber:PurifierP1 FCCID:2AOKB-T5216 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By:JustinZhou ContactListedonFCCWesbite Title:TestingandComplianceDirector Email:[email protected] Telephone:+86-75586544807 Onbehalfof:AnkerInnovationsLimited

Cover Letter(s)

AnkerInnovationsLimited OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:June30,2026 Subject;RequestforConfidentiality FCCID:2AOKB-T5216 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsforUNIIdevices Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:JustinZhou Title:TestingandComplianceDirector

ID Label/Location Info

Hankin Yang 主要变化全球版V5 26.06.10 T5216铭牌 10mm SN: XXXXXXXYWWD 1�1定位图尺寸&工艺图工艺：50#透明龙+MZ0321 贴纸底色：透明字符颜色：白

RF Exposure Info

RFExposureEvaluation ReportNo.LP26030301C01-09 LP26030301C01-16 FCCID:2AOKB-T5216 Page1/2 LimitsforMaximumPermissibleExposure(MPE) Thecriterialistedinthefollowingtableshallbeusedtoevaluatetheenvironmentimpactofhumanexposureto radiofrequency(RF)radiationasspecifiedin1.1307(b) LimitsforMaximumPermissibleExposure(MPE) Frequencyrange (MHz) Electricfield strength (V/m) Magneticfieldstrength (A/m) Powerdensity (mW/cm 2 ) Averagingtime (minutes) (A)LimitsforOccupational/ControlledExposures 0.3–3.06141.63*(100)6 3.0–301842/f4.89/f*(900/f 2 )6 30–30061.40.1631.06 300–1500f/3006 1500–100,00056 (B)LimitsforGeneralPopulation/UncontrolledExposure 0.3–1.346141.63*(100)30 1.34–30824/f2.19/f*(180/f 2 )30 30–30027.50.0730.230 300–1500f/150030 1500–100,0001.030 Friistransmissionformula: Pd=(P out *G)\(4*pi*R 2 ) Where Pd=PowerdensityinmW/cm 2 Pout=outputpowertoantennainmW G=gainofantennainlinearscale Pi=3.1416 R=5(distancebetweenobservationpointandcenteroftheradiatorincm) PdthelimitofMPE,1mW/cm2.Ifweknowthemaximumgainoftheantennaandtotalpower inputtotheantenna,throughthecalculation,wewillknowthedistancewheretheMPElimitis Reached. TestProcedure SoftwareprovidedbyclientenabledtheEUTtotransmitandreceivedataatlowest,middleandhighest channelindividually. RFExposureEvaluation ReportNo.LP26030301C01-09 LP26030301C01-16 FCCID:2AOKB-T5216 Page2/2 MeasurementResult Testmode Max Conducted Power(dBm) Tune-UP Conductedpower (dBm) MaxTune-UP Conductedpower (dBm) Antenna Gain (dBi) EIRP [dBm] EIRP (mW) Powerdensityat20cm (mW/cm2) Power density Limits (mW/cm 2 ) WIFI2.4G (2412-2462MHz) 17.8617.86±1183.7621.76149.9680.11221 BLE (2402-2480MHz) 5.045.04±163.769.769.4620.00711 Remark:TheMaxConductedPeakOutputPowerdatarefertoreportReportNo.:LP26030301C01-09,LP26030301C01-10 None:EIRP(dBm)=MaxConductedPower(dBm)+AntennaGain(dBi) Preparedby:Approved&AuthorizedSigner: JerryHu/Engineer FrankShen/Manager IssueDate：2026-07-02 ---END---

Test Report

0 This document is strictly prohibited from being copied in any way without the permission of our company SPECIFICATION FOR APPROVAL Custome rAdmit confirm ID DepartmentTest departmentStructure sectionQuality department Supplier Admit confirm confirmProofreadingTo examineApproval ziyehuiZhouHaoXuliying APPROVAL No.ATCSZ-5-180124-001ISSUE1 DESCRIBE: Anker Innovations Co., LTD （ T5216) Customer NO: PART NO: ATC1558-AK018B70RA Antenna type: WIFI & BT Antenna (FPC + Cable) Black DATE: 2026.06.29 PROVIDER: AT&C Technology (Shenzhen) Co. 201, Building C, Chuangwei Innovation Valley, No.1 Tangtou Road, Shiyan Street, Bao'an District, Shenzhen, China 1 This document is strictly prohibited from being copied in any way without the permission of our company Testing equipmen WIFI&BT ANT 2 CustomerAnkerWritten By ZYHOrig. Date2026.06.29 Part NumberATC1558-AK018B70RARevised BySHINRevised Date2026.06.29 Description WIFI&BT ANTApproved ByHJApproved Date2026.06.29 This document is strictly prohibited from being copied in any way without the permission of our company BOM Customer P/NATC P/NPart description 32002000298ATC1558-AK018B70RA 40*10*0.12, PI+CU, welded black coaxial cable, wire diameter 0.81, wire length 240mm, equipped with third-generation terminals, with solder joints coated with UV glue 3 CustomerAnkerWritten By ZYHOrig. Date2026.06.29 Part NumberATC1558-AK018B70RARevised BySHINRevised Date2026.06.29 Description WIFI&BT ANTApproved ByHJApproved Date2026.06.29 This document is strictly prohibited from being copied in any way without the permission of our company Impedance Matching 4 CustomerAnkerWritten By ZYHOrig. Date2026.06.29 Part NumberATC1558-AK018B70RARevised BySHINRevised Date2026.06.29 Description WIFI&BT ANTApproved ByHJApproved Date2026.06.29 This document is strictly prohibited from being copied in any way without the permission of our company Ant-S11 5 CustomerAnkerWritten By ZYHOrig. Date2026.06.29 Part NumberATC1558-AK018B70RARevised BySHINRevised Date2026.06.29 Description WIFI&BT ANTApproved ByHJApproved Date2026.06.29 This document is strictly prohibited from being copied in any way without the permission of our company Antenna *Efficiency (2.4G) Passive Test Results Frequency(MHz)Efficiency(%)Efficiency(dB)Max Gain(dBi) 240059.02%-2.29 3.36 241060.67%-2.17 3.32 242061.95%-2.08 3.65 243063.01%-2.01 3.08 244062.01%-2.08 3.37 245062.31%-2.05 3.13 246062.81%-2.02 3.17 247060.67%-2.17 3.59 248060.12%-2.21 3.51 249061.80%-2.09 3.76 250062.23%-2.06 3.67 6 CustomerAnkerWritten By ZYHOrig. Date2026.06.29 Part NumberATC1558-AK018B70RARevised BySHINRevised Date2026.06.29 Description WIFI&BT ANTApproved ByHJApproved Date2026.06.29 This document is strictly prohibited from being copied in any way without the permission of our company 2D Radiation Pattern H 7 CustomerAnkerWritten By ZYHOrig. Date2026.06.29 Part NumberATC1558-AK018B70RARevised BySHINRevised Date2026.06.29 Description WIFI&BT ANTApproved ByHJApproved Date2026.06.29 This document is strictly prohibited from being copied in any way without the permission of our company 2D Radiation Pattern E1 8 CustomerAnkerWritten By ZYHOrig. Date2026.06.29 Part NumberATC1558-AK018B70RARevised BySHINRevised Date2026.06.29 Description WIFI&BT ANTApproved ByHJApproved Date2026.06.29 This document is strictly prohibited from being copied in any way without the permission of our company 2D Radiation Pattern E2 9 CustomerAnkerWritten By ZYHOrig. Date2026.06.29 Part NumberATC1558-AK018B70RARevised BySHINRevised Date2026.06.29 Description WIFI&BT ANTApproved ByHJApproved Date2026.06.29 This document is strictly prohibited from being copied in any way without the permission of our company 3D Radiation Pattern 2450MHZ 10 This document is strictly prohibited from being copied in any way without the permission of our company 2D Draw 11 This document is strictly prohibited from being copied in any way without the permission of our company Packaging method PE bag packaging, product emission neat, uniform quantity PARTLIST The packing drawing is schematic diagram, which does not mean that the picture is the actual produc tand the actual shipment is the standard. NODESCRIPTIONQ'TYMATERIALREMARKSREV. 1 ANTENNA1/1000N/AA 2 PAD OUT 1/4 SW A골 5TN/AA 4 CARTOON BOX-SW A골 5TN/AA 5 PACKING TAPE-PPN/AA Picture: Outer box "I" seal, QC PASS seal on the left side of the outer box, sealed without exposure.

Test Report

ReportNo.LP26030301C01-09 page 1 of 73 DongguanLepontTestingServiceCo.,Ltd. TESTREPORT Applicant: Address: AnkerInnovationsLimited Unit 56, 8th Floor, Tower 2, Admiralty Centre, 18 Harcourt Road, Hong Kong Manufacturer: Address: AnkerInnovationsLimited Unit 56, 8th Floor, Tower 2, Admiralty Centre, 18 Harcourt Road, Hong Kong E.U.T.:PurifierP1 ModelNumber:T5216 Trademark: FCCID:2AOKB-T5216 DateofReceipt: 2026-05-27 DateofTest: 2026-05-27to2026-06-10 TestSpecification:FCC47CFRPart15,SubpartC TestResult:Theequipmentundertestwasfoundtobecompliancewiththe requirementsofthestandardsapplied. Preparedby:Approved&AuthorizedSigner: JerryHu/EngineerFrank.Shen/Manager IssueDate:2026-07-02 Abbreviations:N/A=notapplicableE.U.T.=equipmentundertested Thistestreportisbasedonasingleevaluationofonesampleofabovementionedproducts.Itisnotpermittedto beduplicatedinextractswithoutwrittenapprovalofDongguanLepontTestingServiceCo.,Ltd. ReportNo.LP26030301C01-09 page 2 of 73 DongguanLepontTestingServiceCo.,Ltd. TABLEOFCONTENTS 1.GENERALPRODUCTINFORMATION.............................................................................................................4 1.1.PRODUCTFUNCTION.....................................................................................................................................................4 1.2.EUTTECHNICALDESCRIPTION...........................................................................................................................4 1.3.INDEPENDENTOPERATIONMODES...............................................................................................................................5 1.4.TESTSOFTWARE.....................................................................................................................................................6 1.5.GENERALCONDITION..................................................................................................................................................6 1.6.SUPPORTEQUIPMENT.........................................................................................................................................6 2.TESTSTANDARDSANDSITES..........................................................................................................................7 2.1.DESCRIPTIONOFSTANDARDSANDRESULTS................................................................................................................7 2.2.LISTOFTESTANDMEASUREMENTINSTRUMENTS.......................................................................................................8 2.3.MEASUREMENTUNCERTAINTY..........................................................................................................................9 2.4.TESTFACILITY..............................................................................................................................................................9 3.SETUPOFEQUIPMENTUNDERTEST..........................................................................................................10 3.1.RADIOFREQUENCYTESTSETUP1....................................................................................................................10 3.2.RADIOFREQUENCYTESTSETUP2....................................................................................................................10 3.3.CONDUCTEDEMISSIONTESTSETUP................................................................................................................12 3.4.BLOCKDIAGRAMCONFIGURATIONOFTESTSYSTEM...............................................................................12 4.TESTRESULTSANDMEASUREMENTDATA.............................................................................................13 4.1.DTS(6DB)BANDWIDTH........................................................................................................................................13 4.2.MAXIMUMPEAKCONDUCTEDOUTPUTPOWER...........................................................................................21 4.3.MAXIMUMPOWERSPECTRALDENSITY.........................................................................................................23 4.4.UNWANTEDEMISSIONSINNON-RESTRICTEDFREQUENCYBANDS..................................................30 4.5.RADIATEDSPURIOUSEMISSION........................................................................................................................55 4.6.CONDUCTEDEMISSIONTEST.............................................................................................................................70 4.7.ANTENNAAPPLICATION......................................................................................................................................73 ReportNo.LP26030301C01-09 page 3 of 73 DongguanLepontTestingServiceCo.,Ltd. RevisionHistoryofThisTestReport ReportNumberDescriptionIssuedDate LP26030301C01-09InitialIssue2026-07-02 ReportNo.LP26030301C01-09 page 4 of 73 DongguanLepontTestingServiceCo.,Ltd. 1.GENERALPRODUCTINFORMATION 1.1.PRODUCTFUNCTION RefertoTechnicalConstructionFormandUserManual. 1.2.EUTTECHNICALDESCRIPTION ProductName:PurifierP1 ModelNo.: T5216 TestModelNo:T5216 Difference: N/A SerialNo.:N/A Testsample(s)ID: LP26030301C01-S057 Sample(s)StatusEngineersample Hardware: V3.0 Software:2.0.0 IEEE802.11WLAN ModeSupported: 802.11b802.11g 802.11n(20MHzchannelbandwidth) 802.11n(40MHzchannelbandwidth) Modulation: DSSSwithDBPSK/DQPSK/CCKfor802.11b; OFDMwithBPSK/QPSK/16QAM/64QAMfor802.11g/n; OperatingFrequency Range: 2412-2462MHzfor802.11b/g/n(HT20) 2422-2452MHzfor802.11n(HT40) NumberofChannels: 11channelsfor802.11b/g/n(HT20); 7channelsfor802.11n(HT40); AntennaType:FPCAntenna AntennaGain:3.76dBi PowerSupply: Input:24V2.0A ADAPTER:100-240V50/60Hz,1.0A;Output:24V2A ReportNo.LP26030301C01-09 page 5 of 73 DongguanLepontTestingServiceCo.,Ltd. 1.3.INDEPENDENTOPERATIONMODES TheEUThasbeentestedunderitstypicaloperatingcondition. TheEUTconfigurationfortestingisinstalledonRFfieldstrengthmeasurementtomeetthe Commission…

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Test Report

ReportNo.LP26030301C01-16 page 1 of 57 DongguanLepontTestingServiceCo.,Ltd. TESTREPORT Applicant: Address: AnkerInnovationsLimited Unit 56, 8th Floor, Tower 2, Admiralty Centre, 18 Harcourt Road, Hong Kong Manufacturer: Address: AnkerInnovationsLimited Unit 56, 8th Floor, Tower 2, Admiralty Centre, 18 Harcourt Road, Hong Kong E.U.T.:PurifierP1 ModelNumber:T5216 TradeMark: FCCID:2AOKB-T5216 DateofReceipt: 2026-05-27 DateofTest: 2026-05-27to2026-06-10 TestSpecification:FCC47CFRPart15,SubpartC TestResult:Theequipmentundertestwasfoundtobecompliancewiththe requirementsofthestandardsapplied. Preparedby:Approved&AuthorizedSigner: JerryHu/EngineerFrankShen/Manager IssueDate:2026-07-02 Thistestreportisbasedonasingleevaluationofonesampleofabovementionedproducts.Itisnotpermittedtobe duplicatedinextractswithoutwrittenapprovalofDongguanLepontTestingServiceCo.,Ltd. ReportNo.LP26030301C01-16 page 2 of 57 DongguanLepontTestingServiceCo.,Ltd. TABLEOFCONTENTS 1.GENERALPRODUCTINFORMATION....................................................................................................4 1.1.PRODUCTFUNCTION...............................................................................................................................4 1.2.EUTTECHNICALDESCRIPTION..............................................................................................................4 1.3.INDEPENDENTOPERATIONMODES......................................................................................................5 1.4.TESTSOFTWARE......................................................................................................................................6 1.5.GENERALCONDITION..............................................................................................................................6 1.6.SUPPORTEQUIPMENT............................................................................................................................6 2.TESTSTANDARDSANDSITES..............................................................................................................7 2.1.DESCRIPTIONOFSTANDARDSANDRESULTS....................................................................................7 2.2.LISTOFTESTANDMEASUREMENTINSTRUMENTS...........................................................................8 2.3.MEASUREMENTUNCERTAINTY.............................................................................................................9 2.4.TESTFACILITY..........................................................................................................................................9 3.SETUPOFEQUIPMENTUNDERTEST.................................................................................................10 3.1.RADIOFREQUENCYTESTSETUP1.....................................................................................................10 3.2.RADIOFREQUENCYTESTSETUP2.....................................................................................................10 3.3.CONDUCTEDEMISSIONTESTSETUP.................................................................................................12 3.4.BLOCKDIAGRAMCONFIGURATIONOFTESTSYSTEM....................................................................12 4.TESTRESULTSANDMEASUREMENTDATA.....................................................................................13 4.1.DTS6DBBANDWIDTHTEST.................................................................................................................13 4.2.MAXIMUMPEAKCONDUCTEDOUTPUTPOWER...............................................................................17 4.3.MAXIMUMPOWERSPECTRALDENSITY.............................................................................................22 4.4.UNWANTEDEMISSIONSINNON-RESTRICTEDFREQUENCYBANDS.............................................26 4.5.RADIATEDSPURIOUSEMISSION.........................................................................................................40 4.6.CONDUCTEDEMISSIONTEST..............................................................................................................54 4.7.ANTENNAAPPLICATION........................................................................................................................57 ReportNo.LP26030301C01-16 page 3 of 57 DongguanLepontTestingServiceCo.,Ltd. RevisionHistoryofThisTestReport ReportNumberDescriptionIssuedDate LP26030301C01-16InitialIssue2026-07-02 ReportNo.LP26030301C01-16 page 4 of 57 DongguanLepontTestingServiceCo.,Ltd. 1.GENERALPRODUCTINFORMATION 1.1.PRODUCTFUNCTION RefertoTechnicalConstructionFormandUserManual. 1.2.EUTTECHNICALDESCRIPTION ProductName:PurifierP1 ModelNo.: T5216 TestModelNo:T5216 Difference:/ SerialNo.:N/A Testsample(s)ID: LP26030301C01-S057 Sample(s)StatusEngineersample Hardware: V3.0 Software:2.0.0 OperationFrequency:2402MHz-2480MHz Channelnumbers: 40 Channelseparation:2MHz Modulationtype:GFSK(1Mbps,2Mbps) AntennaType: FPCAntenna Antennagain: 3.76dBi Ratings: Input:24V2.0A ADAPTER:100-240V50/60Hz,1.0A;Output:24V2A ReportNo.LP26030301C01-16 page 5 of 57 DongguanLepontTestingServiceCo.,Ltd. 1.3.INDEPENDENTOPERATIONMODES TheEUThasbeentestedunderitstypicaloperatingcondition. TheEUTconfigurationfortestingisinstalledonRFfieldstrengthmeasurementtomeetthe Commissionsrequirementandoperatinginamannerwhichintendstomaximizeitsemission characteristicsinacontinuousnormalapplication. TheTransmitterwasoperatedinthenormaloperatingmode.TheTXfrequencywasfixedwhichwas forthepurposeofthemeasurements. Testofchannelincludedthelowestandmiddleandhighestfrequencytoperformthetest,thenrecord onthisreport. Pre-definedengineeringprogramforregulatorytestingusedtocontroltheEUTforstayingin continuoustransmittingandreceivingmodeisprogrammed. TestmodeLowchannelMiddlechannelHighchannel GFSK(TX)2402MHz2440MHz2480MHz GFSK(RX)2402MHz2440MHz2480MHz Note:Forthetestresults,theEUThadbeentestedwithallconditions.Butonlytheworstcase wasshownintestreportexcepttheRFoutputpowertestwasshownallco…

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Contact Information

Applicant

Justin Zhou

[email protected]Fax: N/A

Technical Contact

Fantasia Trading LLCConnor Zhai

[email protected]

5350 Ontario Mills Pkwy, STE 100, Ontario, · United States

Test Firm

Dongguan Lepont Testing Service Co., Ltd.Frank Shen

[email protected]

Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15C	2.41 GHz - 2.46 GHz	61.09 mW
2	15C	2.40 GHz - 2.48 GHz	2.72 mW

Confidentiality

Long Term

Grant Notes

Power listed is the maximum conducted output power. This device contains 20 and 40 MHz signal bandwidth. The antennas used with this transmitter must be installed to provide a minimum separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi- transmitter product procedures. End-users must be provided with operating procedures for satisfying RF exposure compliance.