2BKUPEVCHECK24BCV01Electric vehicle battery diagnosis and management system

BETTERWHY

Application Details

Equipment Class: DSS - Part 15 Spread Spectrum Transmitter
Date of Grant: Sep 18, 2024
Application Purpose: Original Equipment
Date of Application: Sep 18, 2024
Equipment Note: Electric vehicle battery diagnosis and management system
Frequency Range: 2402.00000000 - 2480.00000000
Company: BETTERWHY
Country: South Korea

Documents & Files

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Document Text

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Attestation Statements

Rev 1/26/2023 BETTERWHY 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, 39910 South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 19-17-2024 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID or Grantee Code: 2BKUPEVCHECK24BCV01 Applicant FRN: 0035910199 BETTERWHY (“the applicant”) certifies that, as of the date of the filing of the application, FCC US Agent, LLC is our designated U.S. agent for service of process for the above referenced FCC ID. BETTERWHY accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. FCC US Agent, LLC accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, BETTERWHY FCC US Agent, LLC Jingyeong Park Tim Payne [U.S. Agent signature]

Attestation Statements

Rev 1/26/2023 BETTERWHY 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, 39910 South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 09-12-2024 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BKUPEVCHECK24BCV01 BETTERWHY (“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. Sincerely, Name/Title: Jingyeong Park / Senior Research Engineer Company: BETTERWHY Address: 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, South Korea Phone: +82 010 8928 3752 E-Mail: [email protected] Rev 1/26/2023 BETTERWHY 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, 39910 South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 09-12-2024 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BKUPEVCHECK24BCV01 BETTERWHY (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, Name/Title: Jingyeong Park / Senior Research Engineer Company: BETTERWHY Address: 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, South Korea Phone: +82 010 8928 3752 E-Mail: [email protected]

Cover Letter(s)

BETTERWHY 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, 39910 South Korea Date: 09-12-2024 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA SUBJECT: Application for Certification for FCC ID: (2BKUPEVCHECK24BCV01) To Whom It May Concern: We, the undersigned, hereby authorize David Jang at KIEL Institute on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by KIEL Institute on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Name/Title: Jingyeong Park / Senior Research Engineer Company: BETTERWHY Address: 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, South Korea Phone: +82 010 8928 3752 E-Mail: [email protected]

Cover Letter(s)

Rev 11/20/07 BETTERWHY 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, 39910 South Korea Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2BKUPEVCHECK24BCV01 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Block Diagram Operation Description Schematics (EVCHECK24BCV01)BlkDia.pdf (EVCHECK24BCV01)OpDes.pdf (EVCHECK24BCV01)Schem.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below for : 180 Exhibit Type File Name External Photos Internal Photos Test Setup Photo User Manual (EVCHECK24BCV01)ExtPho.pdf (EVCHECK24BCV01)IntPho.pdf (EVCHECK24BCV01)Tsup.pdf (EVCHECK24BCV01)UserMan.pdf Sincerely, Name/Title: Jingyeong Park / Senior Research Engineer Company: BETTERWHY

ID Label/Location Info

FCC Lable location/example Page 1 of 1 FCC ID: 2BKUPEVCHECK24BCV01 Product label Sample with FCC label information Following is a sample copy of the label that will be placed on the rear cabinet of the product. The FCC ID Label and compliance statement are marked in the product label. The warning statement and information to the Use are described in the user manual. - Model: EVCHECK24BCV01 Model: EVCHECK24BCV01 FCC ID: 2BKUPEVCHECK24BCV01 Size: 15 * 10 mm Label Location The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to The user at the time purchase. (Labeling requirements per 2.925)

RF Exposure Info

▪ S = - Note EIRP= Equivalent Isotropic Radiated Power(mW) Operation Mode Evaluation Frequency (MHz) MAX Output Power (dBm) Antenna Gain (dBi) MAX. EIRP (dBm) MAX. EIRP (mW) Distance (cm) Power Density (mW/cm 2 ) Limit (mW/cm2) Result 2.4GHz BT 2402~2480 6.713.4210.1310.30200.002 01Pass 2.4GHz LE 2402~2480 3.833.427.255.31200.001 11Pass FCC Part 2 section 2.1091 (ii) Limits for General Population/Uncontrolled Exposure Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm2) Averaging time (minutes) 1.34-30824/f2.19/f *(180/f 2 ) <30 0.3-1.346141.63*(100)<30 <30 f = frequency in MHz. * = Plane-wave equivalent power density. 30-30027.50.0730.2<30 300-1,500f/1500<30 1,500-100,0001 The EUT will only be used with a separation of 20 centimeters or greater between the antenna and the body of the user. EIRP / ( 4 R 2 π ) S= Maximum power density(mW/cm 2 ) R= Distance to the center of the radiation of the antenna(Over 20cm) Maximum Permissible Exposure Calculation Conclusion maximum calculations of above situations are less than the “1” limit.

Test Report

KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 41 of 58 6.7.4 Test Result Radiated Emission (Below 30 MHz) Worst case -RE(Below 30 MHz)_EDR_2 441MHz Frequency [MHz] Quasi- peak Reading [dBuV] Quasi-Peak Result [dBuV/m] Distance Factor [dB] Limit [dBuV/m] Margin [dB] Height [cm] Pol Azimuth [deg] Corrction Factor [dB/m] 0.01629.50 -30.80-8043.7574.55100Ground parallel10-60.30 0.29819.67 -40.63-8018.1158.74100Ground parallel145-60.30 0.7999.44 -10.66-4029.5540.21100Ground parallel149-20.10 19.0195.93 -12.57-4029.5442.11100Ground parallel97-18.50 Note) 1. Quasi Peak(dBuV/m) = QP Reading Value(dBμV) + Correction Factor(dB/m) + Distance Factor(dB) 2. Correction Factor(dB) = Antenna Factor(dB/m) + Cable Factor(dB) – Pre-Amplifier Factor(dB) 3. Margin(dB) = (Quasi Peak) Limit (dBμV/m) – (Quasi Peak) Result (dBμV/m) 4. We tested three kind of Antenna Pol (Parallel, Perpendicular, Ground parallel) and reported worst case antenna Pol. KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 42 of 58 Radiated Emission (Below 1 GHz) Worst case -RE(Below 1 GHz)_EDR_2 441MHz Frequency [MHz] Quasi-Peak Reading [dBuV] Quasi-Peak Result [dBuV/m] Limit [dBuV/m] Margin [dB] Height [cm] Pol Azimuth [deg] Corrction Factor [dB/m] 44.23342.98 35.4840.004.52100V82-7.50 66.38145.30 36.3040.003.70100V229-9.00 88.47648.83 35.6343.507.87100V18-13.20 132.71840.37 32.0743.5011.43100V299-8.30 154.86740.36 33.2643.5010.24100V261-7.10 323.83342.15 37.3546.008.65100H96-4.80 388.08429.29 26.1946.0019.81100H162-3.10 Note) 1. Quasi Peak(dBμV/m) = Quasi Peak Reading Value(dBμV) + Correction Factor(dB/m) 2. Correction Factor(dB) = Antenna Factor(dB/m) + Cable Factor(dB) – Pre-Amplifier Factor(dB) 3. Margin(dB) = (Quasi Peak) Limit (dBμV/m) – (Quasi Peak) Result (dBμV/m). KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 43 of 58 Radiated Emission (Above 1 GHz) RE(Above1 GHz)_BDR_2 402MHz Frequency [MHz] Peak Reading [dBuV] Peak Result [dBuV/m] AVG Reading [dBuV] AVG Result [dBuV/m] DCCF [dB] Height [cm] Pol Azimuth [deg] Corr. [dB/m] Peak Margin [dB] Peak Limit [dBuV/m] AVG Margin [dB] AVG Limit [dBuV/m] 1 246.50051.5435.72-13.22-22.503.00V205.5-15.8238.2874.0040.7854.00 3 202.50051.6545.06-22.56-22.502.00H193.3-6.5928.9474.0031.4454.00 *4 804.00048.0345.11-22.61-22.503.00H4.6-2.9228.8974.0031.3954.00 7 206.00044.1244.19-21.69-22.503.00H271.50.0729.8174.0032.3154.00 Note) 1. Peak Result(dBuV/m) = Peak Reading Value(dBuV) + Correction Factor(dB/m) 2. AVG Result(dBuV/m) = Peak Result(dBuV/m) + DCCF(dB) 3. DCCF(Duty Cycle Correction Factor) = 20 x Log(worst dwell time/100 ms) 4. Correction Factor(dB/m) = Antenna Factor(dB/m) + Cable Factor(dB) – Pre-Amplifier Factor(dB) + Distance Factor (dB) 5. Margin(dB) = (Peak/AVG) Limit (dBuV/m) – (Peak/AVG) Result (dBuV/m) 6. * - indicates frequency in Restricted Band. KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 44 of 58 RE(Above1 GHz)_BDR_2 441 MHz Frequency [MHz] Peak Reading [dBuV] Peak Result [dBuV/m] AVG Reading [dBuV] AVG Result [dBuV/m] DCCF [dB] Height [cm] Pol Azimuth [deg] Corr. [dB/m] Peak Margin [dB] Peak Limit [dBuV/m] AVG Margin [dB] AVG Limit [dBuV/m] 1 246.50051.1035.28-12.78-22.503.00H31.8-15.8238.7274.0041.2254.00 3 253.00051.3444.89-22.39-22.502.00H171.9-6.4529.1174.0031.6154.00 *4 879.50049.7747.18-24.68-22.503.00H8.2-2.5926.8274.0029.3254.00 *7 320.00043.9044.07-21.57-22.503.00H271.90.1729.9374.0032.4354.00 Note) 1. Peak Result(dBuV/m) = Peak Reading Value(dBuV) + Correction Factor(dB/m) 2. AVG Result(dBuV/m) = Peak Result(dBuV/m) + DCCF(dB) 3. DCCF(Duty Cycle Correction Factor) = 20 x Log(worst dwell time/100 ms) 4. Correction Factor(dB/m) = Antenna Factor(dB/m) + Cable Factor(dB) – Pre-Amplifier Factor(dB) + Distance Factor (dB) 5. Margin(dB) = (Peak/AVG) Limit (dBuV/m) – (Peak/AVG) Result (dBuV/m) 6. * - indicates frequency in Restricted Band. KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 45 of 58 RE(Above1 GHz)_BDR_2 480 MHz Frequency [MHz] Peak Reading [dBuV] Peak Result [dBuV/m] AVG Reading [dBuV] AVG Result [dBuV/m] DCCF [dB] Height [cm] Pol Azimuth [deg] Corr. [dB/m] Peak Margin [dB] Peak Limit [dBuV/m] AVG Margin [dB] AVG Limit [dBuV/m] 1 247.00052.6936.87-14.37-22.503.00H192.7-15.8237.1374.0039.6354.00 1 316.50052.7037.09-14.59-22.502.00H193.9-15.6136.9174.0039.4154.00 3 307.00049.4943.17-20.67-22.502.00H168.1-6.3230.8374.0033.3354.00 *4 960.00052.0849.60-27.10-22.503.00V78.8-2.4824.4074.0026.9054.00 Note) 1. Peak Result(dBuV/m) = Peak Reading Value(dBuV) + Correction Factor(dB/m) 2. AVG Result(dBuV/m) = Peak Result(dBuV/m) + DCCF(dB) 3. DCCF(Duty Cycle Correction Factor) = 20 x Log(worst dwell time/100 ms) 4. Correction Factor(dB/m) = Antenna Factor(dB/m) + Cable Factor(dB) – Pre-Amplifier Factor(dB) + Distance Factor (dB) 5. Margin(dB) = (Peak/AVG) Limit (dBuV/m) – (Peak/AVG) Result (dBuV/m) 6. * - indicates frequency in Restricted Band. KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 46 of 58 RE(Above1 GHz)_EDR_2 402 MHz Frequency [MHz] Peak Reading [dBuV] Peak Result [dBuV/m] AVG Reading [dBuV] AVG Result [dBuV/m] DCCF [dB] Height [cm] Pol Azimuth [deg] Corr. [dB/m] Peak Margin [dB] Peak Limit [dBuV/m] AVG Margin [dB] AVG Limit [dBuV/m] 1 247.00053.6237.80-15.30-22.502.00V0.1-15.8236.2074.0038.7054.00 3 202.50052.6046.01-23.51-22.503.00H176.7-6.5927.9974.0030.4954.00 *4 804.00049.5346.61-24.11-22.502.00V33.3-2.9227.3974.0029.8954.00 7 206.00044.0444.11-21.61-22.503.00H57.90.0729.8974.0032.3954.00 Note) 1. Peak Result(dBuV/m) = Peak Reading Value(dBuV) + Correction Factor(dB/m) 2. AVG Result(dBuV/m) = Peak Result(dBuV/m) + DCCF(dB) 3. DCCF(Duty Cycle Correction Factor) = 20 x Log(worst dwell time/100 ms) 4. Correction Factor(dB/m) = Antenna Factor(dB/m) + Cable Factor(dB) – Pre-Amplifier Factor(dB) + Distance Factor (dB) 5. Margin(dB) = (Peak/AVG) Limit (dBuV/m) – (Peak/AVG) Result (dBuV/m) 6. * - indicates frequency in Restricted Band. KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 47 of 58 RE(Above1 GHz)_EDR_2 441 MHz Frequency [MHz] Peak Read…

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Test Report

KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 21 of 58 6.3.4 Test Result Test ModeChannel Frequency [MHz] 20 dB BW [MHz] BDR 02 4020.941 392 4410.938 782 4800.944 EDR 02 4021.280 392 4411.270 782 4801.280 KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 22 of 58 Test Plot of 20 dB Bandwidth 20 dB Bandwidth BDR_2 402 MHzEDR_2 402 MHz BDR_2 441 MHzEDR_2 441 MHz BDR_2 480 MHzBDR_2 480 MHz KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 23 of 58 6.4 Carrier Frequency Separation 6.4.1 Regulation §15.247(a)(1) : Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hopping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400-2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 125 mW. 6.4.2 Test Procedure The method of measurement used to test this FHSS device is ANSI C63.10-2020. a) The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: b) Span: Wide enough to capture the peaks of two adjacent channels c) RBW: Start with the RBW set to approximately 30% of the channel spacing; adjust as necessary to best identify the center of each individual channel d) Video (or average) bandwidth (VBW) ≥RBW e) Sweep: No faster than coupled (auto) time f) Detector function: Peak. g) Trace: Max hold. h) Allow the trace to stabilize. i) Use the marker-delta function to determine the separation between the peaks of the adjacent channels. Compliance of an EUT with the appropriate regulatory limit shall be determined. A plot of the data shall be included in the test report. 6.4.3 Test Setup KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 24 of 58 6.4.4 Test Result Test ModeChannel Frequency [MHz] Carrier Frequency Separation [MHz] Limit [MHz] BDR 02 4021.007> 0.941 (20 dB BW) 392 4411.001> 0.938 (20 dB BW) 782 4801.007> 0.944 (20 dB BW) EDR 02 4021.001> 0.853 (2/3 of 20 dB BW) 392 4411.001> 0.847 (2/3 of 20 dB BW) 782 4801.001> 0.853 (2/3 of 20 dB BW) KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 25 of 58 Test Plot of Carrier Frequency Separation Carrier Frequency Separation BDR_2 402 MHzEDR_2 402 MHz BDR_2 441 MHzEDR_2 441 MHz BDR_2 480 MHzEDR_2 480 MHz KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 26 of 58 6.5 Number of Hopping Channels 6.5.1 Regulation §15.247(a)(1)(iii) : Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. The average time of occupancy on any channel shall not be greater than 0.4 seconds within a period of 0.4 seconds multiplied by the number of hopping channels employed. Frequency hopping systems may avoid or suppress transmissions on a particular hopping frequency provided that a minimum of 15 channels are used. §15.247(b)(1) : For frequency hopping systems operating in the 2400-2483.5 MHz band employing at least 75 non- overlapping hopping channels, and all frequency hopping systems in the 5725-5850 MHz band: 1 watt. For all other frequency hopping systems in the 2400-2483.5 MHz band: 0.125 watts. 6.5.2 Test Procedure The method of measurement used to test this FHSS device is ANSI C63.10-2020. The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: a) Span: The frequency band of operation. Depending on the number of channels the device supports, it may be necessary to divide the frequency range of operation across multiple spans, to allow the individual channels to be clearly seen b) RBW: To identify clearly the individual channels, set the RBW to less than 30% of the channel spacing or the 20 dB bandwidth, whichever is smaller c) VBW ≥RBW d) Sweep: No faster than coupled (auto) time e) Detector function: Peak f) Trace: Max hold g) Allow the trace to stabilize It might prove necessary to break the span up into subranges to show clearly all of the hopping frequencies. Compliance of an EUT with the appropriate regulatory limit shall be determined for the number of hopping channels. A plot of the data shall be included in the test report. 6.5.3 Test Setup KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 27 of 58 6.5.4 Test Result Test Plot of Number of Hopping Channels Number of Hopping Channels BDR EDR KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 28 of 58 6.6 Time of Occupancy (Dwell Time) 6.6.1 Regulation §15.247(a)(1)(iii) : Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. The average time of occupancy on any channel shall not be greater than 0.4 seconds within a period of 0.4 seconds multiplied by the number of hopping channels employed. Frequency hopping systems may avoid or suppress transmissions on a particular hopping frequency provided that a minimum of 15 channels are used. 6.6.2 Test Procedure The method of measurement used to test this FHSS device is ANSI C63.10-2020. The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: a) Span: Zero span, centered on a hopping channel. b) RBW shall be ≤channel spacing and where possible RBW should be set >> 1 / T, where T is the expected dwell time per channel. c) Sweep: As necessary to capture the entire dwell time per hopping channel; where possible use a video trigger and trigger delay so that the transmitted signal starts a little to the right of the start of the plot. The trigger level might need slight adjustment to prevent triggering when the system hops on an adjacent channel; a second plot might be needed with a longer sweep time to show two successive hops on a channel. d) Detector function: Peak. e) Trace: Clear-write, single sweep Use the marker-delta function to determine the transmit time per hop. If this value varies with different modes of operation (data rate, modulation format, number of hopping channels, etc.), th…

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Test Report

KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 1 of 58 RF TEST REPORT Report NumberKIEL2409-YW10504 Applicant Company Name BETTERWHY Address 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, Republic of Korea Product Product Name EVCheck Model Name EVCHECK24BCV01 FCC/IC ID2BKUPEVCHECK24BCV01 Manufacturer DAEHYUN HI-TECH Other Receipt Date 2024.08.21Receipt Number RQW2408-0666 Issued Date 2024.09.12Tested Date2024.08.30 ~ 2024.09.06 Standards FCC 47 CFR Part 15 Subpart C 15.247 ANSI C63.13 : 2020 Tested byDominic Sim (Sign)#담당서명# Approved by David Jang (Sign)#기책서명# KIEL Institute #원장직인# Daewoo Technopark A-403, 261, Doyak-ro, Bucheon-si, Gyeonggi-do, 14523, Korea. Tel : +82-32-670-8888, Fax : +82-32-670-8889 o This is certified that the above mentioned products have been tested for the sample provided by client. o No part of this document may not be duplicated or reproduced by any means without the express written permission of KIEL Institute. o This test report is irrelevant to KS Q ISO/IEC 17025 and KOLAS accreditation 시 점 확 인 필 정 부 시 점 확 인 센 터 진본 2024-09-13 11:07:25 KST KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 2 of 58 Revision History Issued DateIssued Report No.Revisions 2024.09.12KIEL2409-YW10504Initial Issue KIEL2409-YW10504 양식-KIEL-P-20-01K(Rev. 6.0) Page: 3 of 58 Contents 1.0 LABORATORY INFORMATION...........................................................................................5 2.0 APPLICANT INFORMATION................................................................................................5 3.0 SUMMARY OF TEST RESULTS............................................................................................6 3.1 Meaurement Uncertainty....................................................................................................... 7 4.0 GENERAL INFORMATION ....................................................................................................8 4.1 EUT Description..................................................................................................................... 8 4.1.1 List of Accessories ..........................................................................................................................8 4.1.2 Auxiliary Test equipment.................................................................................................................8 4.1.3 Antenna Information .......................................................................................................................9 4.1.4 Channel List of EUT.......................................................................................................................9 4.2 Description of Test Mode ..................................................................................................... 10 4.2.1 Test Mode Configuration...............................................................................................................10 4.3 General Description of Applied Standard........................................................................... 13 5.0 TEST EQUIPMENT...............................................................................................................14 6.0 TEST RESULTS......................................................................................................................15 6.1 Antenna Requirement.......................................................................................................... 15 6.1.1 Result............................................................................................................................................15 6.2 Maximum Peak Output Power............................................................................................ 16 6.2.1 Regulation.....................................................................................................................................16 6.2.2 Test Procedure...............................................................................................................................16 6.2.3 Test Setup .....................................................................................................................................17 6.2.4 Test Result ....................................................................................................................................18 6.3 20 dB Bandwidth.................................................................................................................. 20 6.3.1 Regulation.....................................................................................................................................20 6.3.2 Test Procedure...............................................................................................................................20 6.3.3 Test Setup .....................................................................................................................................20 6.3.4 Test Result ....................................................................................................................................21 6.4 Carrier Frequency Separation............................................................................................. 23 6.4.1 Regulation.....................................................................................................................................23 6.4.2 Test Procedure...............................................................................................................................23 6.4.3 Test Setup .....................................................................................................................................23 6.4.4 Test Result ....................................................................................................................................24 6.5 Number of Hopping Channels............................................................................................. 26 6.5.1 Regulation.....…

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Test Report

Prepared by: Xu Ying Approved by: Xu Kai TA Technology (Shanghai) Co., Ltd. Building 3, No.145, Jintang Rd, Pudong Shanghai, P.R.China TEL: +86-021-50791141/2/3 FAX: +86-021-50791141/2/3-8000 OTA TEST REPORT TA Technology (Shanghai) Co., Ltd. tested the above equipment in accordance with the requirements in ANSI/IEEE Std 149-2021. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. Applicant Espressif Systems Product ESP ANT B Model ESP ANT B Report No. Y2302A0204-T1 Issue Date March 22, 2023 OTA Test Report Report No: Y2302A0204-T1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 2 of 19 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. TABLE OF CONTENTS 1. Test Laboratory .............................................................................................................................. 3 1.1. Notes of the Test Report ................................................................................................... 3 1.2. Test Facility ....................................................................................................................... 3 1.3. Testing Location ................................................................................................................ 3 1.4. Laboratory Environment .................................................................................................... 3 2. General Description of Equipment Under Test .............................................................................. 4 2.1. Applicant and Manufacturer Information ............................................................................ 4 2.2. General Information ........................................................................................................... 4 2.3. Test Date ........................................................................................................................... 4 2.4. Received Date ................................................................................................................... 4 2.5. Applied Standards ............................................................................................................. 5 3. Test Conditions .............................................................................................................................. 6 3.1. Test Configuration ............................................................................................................. 6 3.2. Test Measurement ............................................................................................................. 6 4. Test Results ................................................................................................................................... 7 4.1. Gain and Efficiency ............................................................................................................ 7 4.2. Voltage Standing Wave Ratio (VSWR) .............................................................................. 8 4.3. Antenna S11 ...................................................................................................................... 9 5. Equipment List ............................................................................................................................. 10 ANNEX A: 2-D Pattern Plots .................................................................................................................... 11 ANNEX B: The EUT Appearance and Test Configuration........................................................................ 17 B.1 EUT Appearance ................................................................................................................... 17 B.2 Test Configuration ................................................................................................................. 19 OTA Test Report Report No: Y2302A0204-T1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 3 of 19 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 1. Test Laboratory 1.1. Notes of the Test Report This report shall not be reproduced in full or partial, without the written approval of TA Technology (Shanghai) Co., Ltd. The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein .Measurement Uncertainties were not taken into account and are published for informational purposes only. This report is written to support regulatory compliance of the applicable standards stated above. 1.2. Test Facility A2LA (Certificate Numb…

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Contact Information

Applicant

Jingyeong Park

[email protected]+8201089283752Fax: +820549760103

Test Firm

KIEL InstituteTae-Yang Yoon

[email protected]+82-32-325-7043

Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15C	2.40 GHz - 2.48 GHz	4.69 mW

Confidentiality

Long Term

Grant Notes

Power listed is conducted. This equipment must be installed and operated to provide a separation distance of at least 20cm 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.

Documents & Files

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Attestation Statements

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Cover Letter(s)

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ID Label/Location Info

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RF Exposure Info

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Test Report

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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

Rev 1/26/2023 BETTERWHY 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, 39910 South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 09-12-2024 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BKUPEVCHECK24BCV01 BETTERWHY (“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. Sincerely, Name/Title: Jingyeong Park / Senior Research Engineer Company: BETTERWHY Address: 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, South Korea Phone: +82 010 8928 3752 E-Mail: [email protected] Rev 1/26/2023 BETTERWHY 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, 39910 South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 09-12-2024 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BKUPEVCHECK24BCV01 BETTERWHY (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, Name/Title: Jingyeong Park / Senior Research Engineer Company: BETTERWHY Address: 24-13, 2saneopdanji 2-gil, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do, South Korea Phone: +82 010 8928 3752 E-Mail: [email protected]

Cover Letter(s)

ID Label/Location Info

RF Exposure Info

Test Report

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Test Report

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Test Report

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Test Report

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Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15C	2.40 GHz - 2.48 GHz	4.69 mW

Confidentiality

Long Term

Grant Notes