
Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.
Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 1 of 19 AppendixI: Photos of the EUT Product Name Model Number : WIRELESS HEADPHONES : HA-A25T, HA-A18T Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 2 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 3 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 4 of 19
HA-A18T-J 2022/11/22
IC : 12522A-A25T FCC ID : 2AKMBHA-A25T
IC : 12522A-A25T FCC ID : 2AKMBHA-A25T
Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 4 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 5 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 6 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 7 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 8 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 9 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 10 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 11 of 19 BT ANT. Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 12 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 13 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 14 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 15 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 16 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 17 of 19 Added bonding pad photos: Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 18 of 19 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22090911-1E Page 19 of 19 END
Tolerances(Unlessotherwisespecified) 深圳市福伯特电子有限公司 X:±1X.X:±0.1X.XX:±0.01 Angle: ± HoleDia.: ± Scale:Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec.ComponentDistributer DrawnBy:ShelleyCheckedBy:Simon DesignedBy:SimonApprovedBy:Kevin TITLE:WIFIFPCBAntenna PART S2B4BB1F3B01000 REV. NO.A OF6 WIFI/&BTFPCAntenna A2147(HA-A25T/A18T/Z250T) 1.ExplanationofProductNumber ProductDescription: Tolerances(Unlessotherwisespecified) 深圳市福伯特电子有限公司 X:±1X.X:±0.1X.XX:±0.01 Angle: ± HoleDia.: ± Scale:Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec.ComponentDistributer DrawnBy:ShelleyCheckedBy:Simon DesignedBy:SimonApprovedBy:Kevin TITLE:WIFIFPCBAntenna PART S2B4BB1F3B01000 REV. NO.A OF6 (1)ProductCategories: B:BTAntenna (2)Dimensions: B1:10.38*10.7*0.13(mm) (3)Material: F:FPC (4)WorkingFrequencies: 1B:2.4G-2.5G (5)AntennaSeries: 01:Serialnumber 2.Features *Stableandreliableinperformances *RoHScompliance *Lowcost 3.Applications *WIFIIEEE802.11/BT 4.Description *YINGFENMGFPCBantennaseriesarespeciallydesignedfor2.4G-2.5Gbandapplication.Based onYINGFENGproprietarydesignsandprocesses,thisFPCBantennahasexcellentstability andsensitivitytoconsistentlyprovidehighsignalreceptionefficiency. 5.AntennaElectricalSpecifications : CharacteristicsSpecificationsUnit OutlineDimensions10.38*10.7*0.13mm Frequency2400~2500MHz Impedance50 PolarizationLinearPolarization ReturnLossTableReturnLoss Freq.Band2.4GHz2.45GHz2.5GHz dB-16.98-29.8117.34 Tolerances(Unlessotherwisespecified) 深圳市 福伯特电子有限公司 X :±1X.X :±0.1X.XX :±0.01 Angle: ± Hole Dia. : ± Scale :Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec. ComponentDistributer DrawnBy : ShelleyCheckedBy : Simon DesignedBy :SimonApprovedBy :K evin TITLE:WIFI FPCBAntenna PART S2B4BB1 F3 B01000 REV. NO.A OF6 6.Dimensions(unit: mm) Tolerances(Unlessotherwisespecified) 深圳市福伯特电子有限公司 X:±1X.X:±0.1X.XX:±0.01 Angle: ± HoleDia.: ± Scale:Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec.ComponentDistributer DrawnBy:ShelleyCheckedBy:Simon DesignedBy:SimonApprovedBy:Kevin TITLE:WIFIFPCBAntenna PART S2B4BB1F3B01000 REV. NO.A OF6 公差:±0.5mm 7.MeasurementCharacteristics: (1)ReturnLoss (2)VSWR Tolerances(Unlessotherwisespecified) 深圳市福伯特电子有限公司 X:±1X.X:±0.1X.XX:±0.01 Angle: ± HoleDia.: ± Scale:Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec.ComponentDistributer DrawnBy:ShelleyCheckedBy:Simon DesignedBy:SimonApprovedBy:Kevin TITLE:WIFIFPCBAntenna PART S2B4BB1F3B01000 REV. NO.A OF6 8.ThreeDRadiationPatternmeasurements Conduction RL Tolerances(Unlessotherwisespecified) 深圳市福伯特电子有限公司 X:±1X.X:±0.1X.XX:±0.01 Angle: ± HoleDia.: ± Scale:Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec.ComponentDistributer DrawnBy:ShelleyCheckedBy:Simon DesignedBy:SimonApprovedBy:Kevin TITLE:WIFIFPCBAntenna PART S2B4BB1F3B01000 REV. NO.A OF6 match Elementparamete rvalue(R/L) ANTFPC E2NC E32nh E42.4pf Tolerances(Unlessotherwisespecified) 深圳市福伯特电子有限公司 X:±1X.X:±0.1X.XX:±0.01 Angle: ± HoleDia.: ± Scale:Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec.ComponentDistributer DrawnBy:ShelleyCheckedBy:Simon DesignedBy:SimonApprovedBy:Kevin TITLE:WIFIFPCBAntenna PART S2B4BB1F3B01000 REV. NO.A OF6 9.OTARadiationPattern 9-1.3DGainPattern(RadiationPatternat2450MHz) R(freefield) TestBluetoothTIS Result03978 Frequency(MHz)240224412480 TRP(dBm) 0.771.881.37 TIS(dBm) -87.31-88.52-89.04 Tolerances(Unlessotherwisespecified) 深圳市福伯特电子有限公司 X:±1X.X:±0.1X.XX:±0.01 Angle: ± HoleDia.: ± Scale:Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec.ComponentDistributer DrawnBy:ShelleyCheckedBy:Simon DesignedBy:SimonApprovedBy:Kevin TITLE:WIFIFPCBAntenna PART S2B4BB1F3B01000 REV. NO.A OF6 L(freefield) TestBluetoothTIS Result03978 Frequency(MHz)240224412480 TRP(dBm) 0.231.141.67 TIS(dBm) -88.23-89.43-88.34 Tolerances(Unlessotherwisespecified) 深圳市福伯特电子有限公司 X:±1X.X:±0.1X.XX:±0.01 Angle: ± HoleDia.: ± Scale:Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec.ComponentDistributer DrawnBy:ShelleyCheckedBy:Simon DesignedBy:SimonApprovedBy:Kevin TITLE:WIFIFPCBAntenna PART S2B4BB1F3B01000 REV. NO.A OF6 R(headform) TestBluetoothTIS Result03978 Frequency(MHz)240224412480 TRP(dBm) -6.26-7.19-7.2 TIS(dBm) -80.13-79.67-78.13 Tolerances(Unlessotherwisespecified) 深圳市福伯特电子有限公司 X:±1X.X:±0.1X.XX:±0.01 Angle: ± HoleDia.: ± Scale:Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec.ComponentDistributer DrawnBy:ShelleyCheckedBy:Simon DesignedBy:SimonApprovedBy:Kevin TITLE:WIFIFPCBAntenna PART S2B4BB1F3B01000 REV. NO.A OF6 Lheadform) TestBluetoothTIS Result03978 Frequency(MHz)240224412480 TRP(dBm) -5.85-6.2-6.19 TIS(dBm) -79.08-80.43-80.97 Tolerances(Unlessotherwisespecified) 深圳市福伯特电子有限公司 X:±1X.X:±0.1X.XX:±0.01 Angle: ± HoleDia.: ± Scale:Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec.ComponentDistributer DrawnBy:ShelleyCheckedBy:Simon DesignedBy:SimonApprovedBy:Kevin TITLE:WIFIFPCBAntenna PART S2B4BB1F3B01000 REV. NO.A OF6 9-2.completemachineEfficiencyTable R PassiveTestForBT FreqEffiEffiGain (MHz)(%)(dB)(dBi) 240012.44-9.05-3.36 241012.31-9.1-3.56 242011.94-10.03-4.6 243012.26-9.89-4.44 244013.18-10.37-4.93 245012.94-10.03-4.63 246010.02-10.96-5.57 247010.36-10.78-5.37 248010.33-11.35-5.99 L PassiveTestForBT FreqEffiEffiGain (MHz)(%)(dB)(dBi) 240010.79-12.37-4.45 241010.51-12.59-4.65 242011.48-13.49-5.51 243012.05-12.97-5.08 244012.29-12.76-5.91 245011.19-12.08-4.4 246011.63-12.5-4.09 247010.97-11.57-4.44 248010.95-11.58-4.73 Tolerances(Unlessotherwisespecified) 深圳市福伯特电子有限公司 X:±1X.X:±0.1X.XX:±0.01 Angle: ± HoleDia.: ± Scale:Unit:mm FbetterInternational(H.K.)Co.LTD. ProfessionalElec.ComponentDistributer DrawnBy:ShelleyCheckedBy:Simon DesignedBy:SimonApprovedBy:Kevin TITLE:WIFIFPCBAntenna PART S2B4BB1F3B01000 REV. NO.A OF6 10.RevisionControl: RevisionDateContentRemark AMar.12.2022N/A Packagingmethod TheFPCantennaisassembledandaffixedtothecustomersupplyshellmaterial,andthequantityis subjecttotheactualorder.
Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R22090911-2E01 Page 1 of 118 FCC AND ISED CERTIFICATION TEST REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel.: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : Kingstate Electronics(Dongguan)Co.,Ltd Address : Shi Chong Industrial Park, Shi Chong Avenue, Xiang Xi Village, Shi Pai Town, Dong Guan City, Guang Dong Province, China. Equipment under Test : WIRELESS HEADPHONES Model No. : HA-A25T, HA-A18T Trade Mark : JVC FCC ID : 2AKMBHA-A25T IC : 12522A-A25T Manufacturer : Kingstate Electronics(Dongguan)Co.,Ltd Address : Shi Chong Industrial Park, Shi Chong Avenue, Xiang Xi Village, Shi Pai Town, Dong Guan City, Guang Dong Province, China. Report No.:DDT-R22090911-2E01 Issued Date: Dec. 13, 2022 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R22090911-2E01 Page 2 of 118 Table of Contents Test report declares.......................................................................................................4 1. Summary of Test Results ............................................................................................... 7 2. General Test Information ............................................................................................... 8 2.1. Description of EUT ......................................................................................................... 8 2.2. Accessories of EUT ........................................................................................................ 9 2.3. Assistant equipment used for test .................................................................................. 9 2.4. Block diagram of EUT configuration for test .................................................................. 9 2.5. Deviations of test standard............................................................................................. 9 2.6. Test environment conditions ........................................................................................ 10 2.7. Test laboratory ............................................................................................................. 10 2.8. Measurement uncertainty ............................................................................................. 10 3. Equipment Used During Test ....................................................................................... 11 4. 20 dB Bandwidth .......................................................................................................... 12 4.1. Block diagram of test setup .......................................................................................... 12 4.2. Limits ............................................................................................................................ 12 4.3. Test procedure ............................................................................................................. 12 4.4. test result ...................................................................................................................... 12 4.5. Test graphs .................................................................................................................. 13 5. 99% Bandwidth ............................................................................................................ 18 5.1. Block diagram of test setup .......................................................................................... 18 5.2. Limits ............................................................................................................................ 18 5.3. Test procedure ............................................................................................................. 18 5.4. Test Result ................................................................................................................... 18 5.5. Test Graphs .................................................................................................................. 19 6. Maximum Peak Output Power ..................................................................................... 24 6.1. Block diagram of test setup .......................................................................................... 24 6.2. Limits ............................................................................................................................ 24 6.3. Test procedure ............................................................................................................. 24 6.4. Test Result Peak .......................................................................................................... 25 6.5. Test graphs .................................................................................................................. 25 7. Carrier Frequency Separation ...................................................................................... 30 7.1. Block diagram of test setup .......................................................................................... 30 7.2. Limits ............................................................................................................................ 30 7.3. Test procedure ............................................................................................................. 30 7.4. Test result ..................................................................................................................... 31 7.5. Test graphs .................................................................................................................. 31 8. Dwell Time .................................................................................................................... 33 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R22090911-2E01 Page 3 of 118 8.1. Block diagram of test setup .................…
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Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R22090911-2E01 Page 61 of 118 DH5_Ant1_2402_1000~26500 DH5_Ant1_2441_0~Reference DH5_Ant1_2441_30~1000 Ref 20 dBmAtt 20 dB* Offset 1.5 dB A LVL Start1 GHzStop26.5 GHz2.55 GHz/ * 3DB RBW 100 kHz SWT 2.6 s *VBW 300 kHz 1 PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] 3.58 dBm 2.401650000 GHz 2 Marker 2 [T1 ] -40.79 dBm 2.593750000 GHz D1 -15.94 dBm Date: 2.DEC.2022 11:25:43 A Att 30 dB* Offset 1.5 dB LVL Ref 30 dBm Center2.441 GHzSpan1.5 MHz150 kHz/ 3DB RBW 100 kHz SWT 2.5 ms * VBW 300 kHz* 1 PK VIEW -70 -60 -50 -40 -30 -20 -10 0 10 20 30 1 Marker 1 [T1 ] 4.31 dBm 2.441014423 GHz Date: 2.DEC.2022 11:27:15 A Offset 1.5 dB LVL Att 20 dB*Ref 20 dBm * 3DB RBW 100 kHz *VBW 300 kHz SWT 125 ms Start30 MHzStop1 GHz97 MHz/ 1 PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] -56.38 dBm 167.061000000 MHz D1 -15.69 dBm Date: 2.DEC.2022 11:27:20 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R22090911-2E01 Page 62 of 118 DH5_Ant1_2441_1000~26500 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 Ref 20 dBmAtt 20 dB* Offset 1.5 dB A LVL Start1 GHzStop26.5 GHz2.55 GHz/ * 3DB RBW 100 kHz SWT 2.6 s *VBW 300 kHz 1 PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] 4.15 dBm 2.440750000 GHz 2 Marker 2 [T1 ] -41.52 dBm 2.632850000 GHz D1 -15.69 dBm Date: 2.DEC.2022 11:27:44 A Att 30 dB* Offset 1.5 dB LVL Ref 30 dBm Center2.48 GHzSpan1.5 MHz150 kHz/ 3DB RBW 100 kHz SWT 2.5 ms * VBW 300 kHz* 1 PK VIEW -70 -60 -50 -40 -30 -20 -10 0 10 20 30 1 Marker 1 [T1 ] 4.25 dBm 2.480016827 GHz Date: 2.DEC.2022 11:29:27 A Offset 1.5 dB LVL Att 20 dB*Ref 20 dBm * 3DB RBW 100 kHz *VBW 300 kHz SWT 125 ms Start30 MHzStop1 GHz97 MHz/ 1 PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] -55.03 dBm 165.832333333 MHz D1 -15.75 dBm Date: 2.DEC.2022 11:29:33 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R22090911-2E01 Page 63 of 118 DH5_Ant1_2480_1000~26500 2DH5_Ant1_2402_0~Reference 2DH5_Ant1_2402_30~1000 Ref 20 dBmAtt 20 dB* Offset 1.5 dB A LVL Start1 GHzStop26.5 GHz2.55 GHz/ * 3DB RBW 100 kHz SWT 2.6 s *VBW 300 kHz 1 PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] 3.69 dBm 2.479850000 GHz 2 Marker 2 [T1 ] -41.88 dBm 2.287750000 GHz D1 -15.75 dBm Date: 2.DEC.2022 11:29:56 A Att 30 dB* Offset 1.5 dB LVL Ref 30 dBm Center2.402 GHzSpan1.5 MHz150 kHz/ 3DB RBW 100 kHz SWT 2.5 ms * VBW 300 kHz* 1 PK VIEW -70 -60 -50 -40 -30 -20 -10 0 10 20 30 1 Marker 1 [T1 ] 4.43 dBm 2.402026442 GHz Date: 2.DEC.2022 11:31:40 A Offset 1.5 dB LVL Att 20 dB*Ref 20 dBm * 3DB RBW 100 kHz *VBW 300 kHz SWT 125 ms Start30 MHzStop1 GHz97 MHz/ 1 PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] -55.49 dBm 631.529333333 MHz D1 -15.57 dBm Date: 2.DEC.2022 11:31:45 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R22090911-2E01 Page 64 of 118 2DH5_Ant1_2402_1000~26500 2DH5_Ant1_2441_0~Reference 2DH5_Ant1_2441_30~1000 Ref 20 dBmAtt 20 dB* Offset 1.5 dB A LVL Start1 GHzStop26.5 GHz2.55 GHz/ * 3DB RBW 100 kHz SWT 2.6 s *VBW 300 kHz 1 PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] -1.07 dBm 2.401650000 GHz 2 Marker 2 [T1 ] -43.54 dBm 9.607950000 GHz D1 -15.57 dBm Date: 2.DEC.2022 11:32:09 A Att 30 dB* Offset 1.5 dB LVL Ref 30 dBm Center2.441 GHzSpan1.5 MHz150 kHz/ 3DB RBW 100 kHz SWT 2.5 ms * VBW 300 kHz* 1 PK VIEW -70 -60 -50 -40 -30 -20 -10 0 10 20 30 1 Marker 1 [T1 ] 4.62 dBm 2.441016827 GHz Date: 2.DEC.2022 11:34:56 A Offset 1.5 dB LVL Att 20 dB*Ref 20 dBm * 3DB RBW 100 kHz *VBW 300 kHz SWT 125 ms Start30 MHzStop1 GHz97 MHz/ 1 PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] -55.77 dBm 942.349666667 MHz D1 -15.38 dBm Date: 2.DEC.2022 11:35:02 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R22090911-2E01 Page 65 of 118 2DH5_Ant1_2441_1000~26500 2DH5_Ant1_2480_0~Reference 2DH5_Ant1_2480_30~1000 Ref 20 dBmAtt 20 dB* Offset 1.5 dB A LVL Start1 GHzStop26.5 GHz2.55 GHz/ * 3DB RBW 100 kHz SWT 2.6 s *VBW 300 kHz 1 PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] 0.44 dBm 2.440750000 GHz 2 Marker 2 [T1 ] -41.23 dBm 9.764350000 GHz D1 -15.38 dBm Date: 2.DEC.2022 11:35:25 A Att 30 dB* Offset 1.5 dB LVL Ref 30 dBm Center2.48 GHzSpan1.5 MHz150 kHz/ 3DB RBW 100 kHz SWT 2.5 ms * VBW 300 kHz* 1 PK VIEW -70 -60 -50 -40 -30 -20 -10 0 10 20 30 1 Marker 1 [T1 ] 4.21 dBm 2.480016827 GHz Date: 2.DEC.2022 11:42:25 A Offset 1.5 dB LVL Att 20 dB*Ref 20 dBm * 3DB RBW 100 kHz *VBW 300 kHz SWT 125 ms Start30 MHzStop1 GHz97 MHz/ 1 PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] -55.49 dBm 870.860666667 MHz D1 -15.79 dBm Date: 2.DEC.2022 11:42:31 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R22090911-2E01 Page 66 of 118 2DH5_Ant1_2480_1000~26500 Ref 20 dBmAtt 20 dB* Offset 1.5 dB A LVL Start1 GHzStop26.5 GHz2.55 GHz/ * 3DB RBW 100 kHz SWT 2.6 s *VBW 300 kHz 1 PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] 0.43 dBm 2.479850000 GHz 2 Marker 2 [T1 ] -42.42 dBm 9.919900000 GHz D1 -15.79 dBm Date: 2.DEC.2022 11:42:55 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R22090911-2E01 Page 67 of 118 12. Duty cycle 12.1. Block diagram of test setup 12.2. Limit Just for Report. 12.3. Test procedure (1) Connected the EUT’s antenna port to the Spectrum Analyzer by suitable attenuator, The cable loss and attenuator loss have been put into spectrum analyzer as amplitude offset. set the Spectrum Analyzer as below: Centre Frequency: The centre frequency of the middle hopping channel. Resolution BW: 10 MHz. Video BW: 10 MHz. Span: Zero span. Detector: Peak. Trace Mode: Max Hold. Sweep: Video Trigger (2) When the trace is complete, measure the sending time of 1 burst and the duty cycle of 1 burst cycle. (3) Calculate dwell time follow below formula: Duty cycle= Pulse’s on time / Burst cycle Appendix I: Duty Cycle Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R22090911-2E01 Page 68 of 118 12.4. Test result…
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Dongguan · China
| # | Rule Parts | Frequency Range | Power Output |
|---|---|---|---|
| 1 | 15C | 2.40 GHz - 2.48 GHz | 3.62 mW |
HEADPHONES
Equipment Class
DTS - Digital Transmission SystemWIRELESS HEADPHONES
Equipment Class
DSS - Part 15 Spread Spectrum Transmitter
WIRELESS HEADPHONES
Equipment Class
DTS - Digital Transmission System
WIRELESS HEADPHONES
Equipment Class
DTS - Digital Transmission System
Truly wireless Earphones
Equipment Class
DSS - Part 15 Spread Spectrum Transmitter