WBK-RU4370Remote Radio Unit

RU4370 UserManual Copyright© 2021BTI WIRELESSAll rightsreserved. RU4370 User Manual 4T4RDigitalRadios HighOutputPower 5G NR Compliant OutdoorRated RU4370 UserManual Copyright© 2021BTI WIRELESSAll rightsreserved. Copyright© BTI 2020 . All rightsreserved.This documentis protectedby internationalcopyrightlaw and may not be reprinted,reproduced,copiedor utilizedin wholeor in part by any meansincludingelectronic,mechanical,or other meanswithoutthe priorwrittenconsentof BTI Wireless. Whilstreasonablecare has beentakenby BTI to ensurethe informationcontainedhereinis reasonablyaccurate,BTI Wirelessshallnot, underany circumstancesbe liablefor any loss or damage(director consequential)sufferedby any partybecauseof the contentsof this publicationor the relianceof any partythereonor any inaccuracyor omission therein.The informationin this documentis thereforeprovidedon an “as is ” basiswithoutwarrantyand is subjectto changewithoutfurthernoticeand cannotbe construedas a commitmentby BTI Wireless. The productsmentionedin this documentare identifiedby the names,trademarks,servicemarksand logosof their respectivecompaniesor organizationsand may not be usedin any advertisingor publicityor in any otherway whatsoeverwithoutthe priorwrittenconsentof thosecompaniesor organizationsand BTI Wireless. RU4370 UserManual Copyright© 2021BTI WIRELESSAll rightsreserved. Content General ..................................................................................................................................................................................... 4 Warnings .......................................................................................................................................................................... 4 Site Considerations ........................................................................................................................................................... 4 Environmental .................................................................................................................................................................. 4 WarningMarks ................................................................................................................................................................. 6 Preparation ............................................................................................................................................................................... 8 Unpackingand Inspection ................................................................................................................................................ 8 Tools ................................................................................................................................................................................. 8 Installationof the RU4370 ....................................................................................................................................................... 9 RU4370Accessories ......................................................................................................................................................... 9 WallInstallation(Backon the Wall) ............................................................................................................................... 10 WallInstallation(Sideon the Wall) ................................................................................................................................ 15 Pole Installation .............................................................................................................................................................. 19 RU4370 User Manual Copyright © 2021 BTI WIRELESS All rights reserved. General The RU4370 components are designed for maximum safety and reliability when they are installed, used, and maintained by trained and qualified technicians in accordance with the procedures and instructions contained in this manual. To ensure the safe operation of your system, always follow the safety and operational recommendations in this manual. Warnings RU4370 is not a consumer product. Please install and use RU4370 in accordance with the instructions. Before installing or modifying any RU4370 equipment, read and fully understand the entire instructions in this guide. Only qualified personnel are authorized to install and maintain the RU4370. Changes or modifications to the RU4370 equipment not expressly approved by the manufacturer could void the product warranty and the user’s authority to operate the equipment. Follow Electro Static Discharge precautions to avoid any damage to PCB, PSU, etc. Keep equipment powered-off during installing or modifying. Low path loss cables connected to antennas are highly recommended. Antenna gain should not exceed 14 dBi. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. Note:Only authorized person can enter the area where the antenna is installed. And the person is fully aware of the potential for exposure and can exercise control over his or her exposure by leaving the area or by some other appropriate means. Awareness of the potential for RF exposure in a workplace or similar environment can be provided through specific training as part of a RF safety program Site Considerations The system delay should be taken into consideration when there are neighboring BTS sites with overlapping in coverage. Pick an ideal easy-to-reach location for installation convenience. Verify …

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Applicant Declaration QSF27-14-04 Rev 1.0 Rev. Feb 6, 2023 Page 1 of 1 Original Issue: Jan. 4, 2021 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name BTI Wireless Address 11205 Knott Avenue – Suite A, Cypress, CA 90630 United States Grantee Code WBK FCC ID WBK-RU4370 Authorized Contact Name Ron Poulin Contact Email [email protected] Contact Phone +1 250 882 8082 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b) in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d) in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e) in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall, upon request by SGS, at the Applicant’s expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is subject to a denial of Federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List [BTI Wireless] (“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. [BTI Wireless] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [ is not] identified on the Covered list, established pursuant to §1.50002, as an entity producing “covered” equipment. Applicant Signature: Date: 2023-03-24 Print Name: Ron Poulin Title: VP of Business Development *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

UNITED STATES DESIGNATED AGENT LETTER Date: 2023/3/24 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Applicant U.S. designated agent Company Name: BTI Wireless Company Name: BTI Wireless Grantee Code: WBK Contact Name: Ron Poulin Contact Name: Ron Poulin Address: 11205 Knott Avenue – Suite A, Cypress, CA 90630 United States Address: 11205 Knott Avenue – Suite A, Cypress, CA 90630 United States City/Province/Zip: Cypress/ California/ 90630 City/Province/Zip: Cypress/ California/ 90630 Telephone: +1 250 882 8082 Telephone: +1 250 882 8082Fax: Fax: Email: [email protected] Email: [email protected] Applicable Equipment: FCC ID: < WBK-RU4370 > ATTN: Director of Certification: We, < BTI Wireless > and < BTI Wireless > understand and acknowledge the applicants consent and the designated agent’s obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and e-mail of the designated agent listed above. We, < BTI Wireless > and < BTI Wireless > acknowledge the applicant’s acceptance of its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Applicant U.S. designated agent Name (Printed): Ron Poulin Name (Printed): Ron Poulin Title: VP of Business Development Title: VP of Business Development Signature: Signature: FRN:0033462680

BTI Wireless Date: 2023-03-24 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: WBK-RU4370 To whom it may concern: We, the undersigned, hereby authorize Parlam Zhan to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Where our agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by SGS North America, Inc., still resides with BTI Wireless This authorization is valid until further written notice from the applicant. Name (Printed): Ron Poulin Title: VP of Business Development Signature: On behalf of Company: BTI Wireless Telephone: +1 250 882 8082

Corning Restricted BTI Wireless To: SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia United States From: BTI Wireless 11205 Knott Avenue – Suite A, Cypress, CA 90630 United States Regarding: Confidentiality Request regarding application for FCC ID: WBK-RU4370 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions Tune-up BOM The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. Sincerely, Printed Name (on file with the FCC associated with the Grantee Code): Ron Poulin Title: VP, Business Development Company Name: BTI Wireless

Compliance Certification Services (Kunshan) Inc. Page: 1 of 5 Appendix Photographs of External photo for KSCR2303000316AT Test Model No.: RU4370 Compliance Certification Services (Kunshan) Inc. Page: 2 of 5 EUT Constructional Details (EUT Photos) Compliance Certification Services (Kunshan) Inc. Page: 3 of 5 Compliance Certification Services (Kunshan) Inc. Page: 4 of 5 Compliance Certification Services (Kunshan) Inc. Page: 5 of 5

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Compliance Certification Services (Kunshan) Inc. Page: 1 of 4 Appendix Photographs of Internal photo for KSCR2303000316AT Test Model No.: RU4370 Compliance Certification Services (Kunshan) Inc. Page: 2 of 4 EUT Constructional Details (EUT Photos) Compliance Certification Services (Kunshan) Inc. Page: 3 of 4 Compliance Certification Services (Kunshan) Inc. Page: 4 of 4

Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031602 Page: 1 of 7 Eric Lin EMC Lab Manager 1 Cover Page RF MPE REPORT Application No.: KSCR2303000316AT FCC ID: WBK-RU4370 Applicant: BTI Wireless Address of Applicant: 11205 Knott Avenue – Suite A, Cypress, CA 90630 United States Manufacturer: BTI Wireless Address of Manufacturer: 11205 Knott Avenue – Suite A, Cypress, CA 90630 United States Factory: Sunwave Communications Co., Ltd Address of Factory: 581 Huoju Avenue, Binjiang District Hangzhou China Equipment Under Test (EUT): EUT Name: Remote Radio Unit Model No.: RU4370 Trade mark: Standard(s) : FCC Rules 47 CFR §2.1091 KDB447498 D01 General RF Exposure Guidance v06 Date of Receipt: 2023-03-01 Date of Test: 2023-03-01 to 2023-03-06 Date of Issue: 2023-03-07 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031602 Page: 2 of 7 Revision Record Version Description Date Remark 00 Original 2023-03-07 / Authorized for issue by: Damon Zhou / Project Engineer Eric Lin / Reviewer Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031602 Page: 3 of 7 2 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 CONTENTS ................................................................................................................................................ 3 3 GENERAL INFORMATION ........................................................................................................................ 4 3.1 GENERAL DESCRIPTION OF E.U.T. ........................................................................................................ 4 3.2 TECHNICAL SPECIFICATIONS ................................................................................................................. 4 3.3 TEST LOCATION .................................................................................................................................... 5 3.4 TEST FACILITY ...................................................................................................................................... 5 4 TEST STANDARDS AND LIMITS ............................................................................................................. 6 4.1 FCC RADIOFREQUENCY RADIATION EXPOSURE LIMITS: ........................................................................... 6 5 MEASUREMENT AND CALCULATION .................................................................................................... 7 5.1 MAXIMUM TRANSMIT POWER ................................................................................................................. 7 5.2 MPE CALCULATION .............................................................................................................................. 7 Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031602 Page: 4 of 7 3 General Information 3.1 General Description of E.U.T. Power supply: DC 48V 3.2 Technical Specifications Frequency Band: 5GNR N48,N77,N78 Frequency Range: 3550MHz-3700MHz Antenna Type: External Antenna Gain: 14dBi (Provided by manufacturer) CBSD Class: Category B CBSD (Base Station) Support Bandwidth: 100MHz Modulation Type: 5G NR: CP-OFDM: QPSK, 256QAM MIMO: 4T4R MIMO, SISO Temperature Range: -40°C to 55°C Note: The antenna gain value is provided by the customer. The test lab will not be responsible for wrong test result due to incorrect information about antenna gain values. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031602 Page: 5 of 7 3.3 Test Location All tests were performed at: Compliance Certification Services (Kunshan) Inc. No.10 Weiye Rd, Innovation park, Eco&Tec, Development Zone, Kunshan City, Jiangsu, China. Tel: +86 512 5735 5888 Fax: +86 512 5737 0818 No tests were sub-contracted. Note: 1.SGS is not responsible for wrong test results due to incorrect information (e.g., max. internal working frequency, antenna gain, cable loss, etc) is provided by the applicant. (If applicable). 2.SGS is not responsible for the authenticity, integrity and the validity of the conclusion based on results of the data provided by applicant. (If applicable). 3.4 Test Facility The test facility is recognized, certified, or accredited by the following organizations: • A2LA Compliance Certification Services (Kunshan) Inc. is accredited by the American Association for Laboratory Accreditation (A2LA). Certificate No. 2541.01. • FCC Compliance Certification Services (Kunshan) Inc. has been recognized as an accredited testing laboratory. Designation Number: CN1172. • ISED Compliance Certification Services (Kunshan) Inc. has been recognized by Innovation, Science and Economic Development Canada (ISED) as an accredited testing laboratory. Company Number: 2324E • VCCI The 3m and 10m Semi-anechoic chamber and Shielded Room of Compliance Certification Services (Kunshan) Inc. has been registered in accordance with the Regulations for Voluntary Control Measures with Registration No.: R-20134, R-11600, C-11707, T-11499, G-10216 respectively. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031602 Page: 6 of 7 4 Test Standards and Limits 4.1 FCC Radiofrequency radiation exposure limits: According to§1.1310, the limit for general population/uncontrolled exposures Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *(100) 30 1.34-30 824/f 2.19/f *(180/f2) 30 30-300 27.5 0.073 0.2 30 300-1500 / / f/1500 30 1500-100,000 / / 1.0 30 Note: 5G N48,N77,N78 is 1mW/cm 2 . Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031602 Page: 7 of 7 5 Measurement and Calculation 5.1 Maximum t…

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Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031603 Page: 1 of 60 Eric Lin Laboratory Manager TEST REPORT Application No.: KSCR2303000316AT FCC ID: WBK-RU4370 Applicant: BTI Wireless Address of Applicant: 11205 Knott Avenue – Suite A, Cypress, CA 90630 United States Manufacturer: BTI Wireless Address of Manufacturer: 11205 Knott Avenue – Suite A, Cypress, CA 90630 United States Factory: Sunwave Communications Co., Ltd Address of Factory: 581 Huoju Avenue, Binjiang District Hangzhou China Equipment Under Test (EUT): EUT Name: Remote Radio Unit Model No.: RU4370 Trade Mark: Standard(s): CBRSA-TS-9001-V1.2.1 WINNF-TS-0122-V1.0.2 FCC 47 CFR Part 96 KDB 940660 D01 V03 Date of Receipt: 2023-02-21 Date of Test: 2023-02-21 to 2023-02-26 Date of Issue: 2023-02-27 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031603 Page: 2 of 60 Revision Record Version Description Date Remark 00 Original 2023-02-27 / Authorized for issue by: Cloud_Peng/Project Engineer Eric Lin /Reviewer Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031603 Page: 3 of 60 2 Test Summary Item Standard Test Case ID Result Multi-Step registration WINNF-TS-0122- V1.0.2 WINNF.FT.C.REG.1 Pass Single-Step registration for CBSD with CPI signed data WINNF-TS-0122- V1.0.2 WINNF.FT.C.REG.5 Pass Registration due to change of an installation parameter WINNF-TS-0122- V1.0.2 WINNF.FT.C.REG.7 Pass Missing Required parameters (responseCode 102) WINNF-TS-0122- V1.0.2 WINNF.FT.C.REG.8 Pass Pending registration (responseCode 200) WINNF-TS-0122- V1.0.2 WINNF.FT.C.REG.10 Pass Invalid parameter (responseCode 103) WINNF-TS-0122- V1.0.2 WINNF.FT.C.REG.12 Pass Blacklisted CBSD (responseCode 101) WINNF-TS-0122- V1.0.2 WINNF.FT.C.REG.14 Pass Unsupported SAS protocol version (responseCode 100) WINNF-TS-0122- V1.0.2 WINNF.FT.C.REG.16 Pass Group Error (responseCode 201) WINNF-TS-0122- V1.0.2 WINNF.FT.C.REG.18 Pass Unsuccessful Grant responseCode=400 (INTERFERENCE) WINNF-TS-0122- V1.0.2 WINNF.FT.D.GRA.1 Pass Unsuccessful Grant responseCode=401 (GRANT_CONFLICT) WINNF-TS-0122- V1.0.2 WINNF.FT.C.GRA.2 Pass Heartbeat Success Case (first Heartbeat Response) WINNF-TS-0122- V1.0.2 WINNF.FT.C.HBT.1 Pass Heartbeat responseCode=105 (DEREGISTER) WINNF-TS-0122- V1.0.2 WINNF.FT.C.HBT.3 Pass Heartbeat responseCode=500 (TERMINATED_GRANT) WINNF-TS-0122- V1.0.2 WINNF.FT.C.HBT.4 Pass Heartbeat responseCode=501 (SUSPENDED_GRANT) in First Heartbeat Response WINNF-TS-0122- V1.0.2 WINNF.FT.C.HBT.5 Pass Heartbeat responseCode=501 (SUSPENDED_GRANT) in Subsequent Heartbeat Response WINNF-TS-0122- V1.0.2 WINNF.FT.C.HBT.6 Pass Heartbeat responseCode=502 (UNSYNC_OP_PARAM) WINNF-TS-0122- V1.0.2 WINNF.FT.C.HBT.7 Pass Heartbeat Response Absent (First Heartbeat) WINNF-TS-0122- V1.0.2 WINNF.FT.C.HBT.9 Pass Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031603 Page: 4 of 60 Item Standard Test Case ID Result Heartbeat Response Absent (Subsequent Heartbeat) WINNF-TS-0122- V1.0.2 WINNF.FT.C.HBT.10 Pass Successful Grant Renewal in Heartbeat Test Case WINNF-TS-0122- V1.0.2 WINNF.FT.C.HBT.11 Pass Registration Response contains measReportConfig WINNF-TS-0122- V1.0.2 WINNF.FT.C.MES.1 Pass Grant Response contains measReportConfig WINNF-TS-0122- V1.0.2 WINNF.FT.C.MES.3 Pass Heartbeat Response contains measReportConfig WINNF-TS-0122- V1.0.2 WINNF.FT.C.MES.4 Pass Successful Relinquishment WINNF-TS-0122- V1.0.2 WINNF.FT.C.RLQ.1 Pass Deregistration responseCode=102 WINNF-TS-0122- V1.0.2 WINNF.FT.C.RLQ.3 Pass Deregistration responseCode=103 WINNF-TS-0122- V1.0.2 WINNF.FT.C.RLQ.5 Pass Successful Deregistration WINNF-TS-0122- V1.0.2 WINNF.FT.C.DRG.1 Pass Deregistration responseCode=102 WINNF-TS-0122- V1.0.2 WINNF.FT.C.DRG.3 Pass Deregistration responseCode=103 WINNF-TS-0122- V1.0.2 WINNF.FT.C.DRG.5 Pass Successful TLS connection between UUT and SAS Test Harness WINNF-TS-0122- V1.0.2 WINNF.FT.C.SCS.1 Pass TLS failure due to revoked certificate WINNF-TS-0122- V1.0.2 WINNF.FT.C.SCS.2 Pass TLS failure due to expired server certificate WINNF-TS-0122- V1.0.2 WINNF.FT.C.SCS.3 Pass TLS failure when SAS Test Harness certificate is issue by unknown CA WINNF-TS-0122- V1.0.2 WINNF.FT.C.SCS.4 Pass TLS failure when certificate at the SAS Test Harness is corrupted WINNF-TS-0122- V1.0.2 WINNF.FT.C.SCS.5 Pass UUT RF Transmit Power Measurement WINNF-TS-0122- V1.0.2 WINNF.PT.C.HBT Pass SAS Version: 1.0.0.3 The UUT is a CPE-CBSD product. According to the specifications of the manufacturer, it must comply with the requirements of the following standards: Test standards: CBRSA-TS-9001-V1.2.1 CBRS Alliance Certification Test Plan Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031603 Page: 5 of 60 WINNF-TS-0122-V1.0.2 Test and Certification for Citizens Broadband Radio Service (CBRS); Conformance and Performance Test Technical Specification; CBSD/DP as Unit Under Test (UUT) KDB 940660 D01 Part 96 CBRS Eqpt v03 Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031603 Page: 6 of 60 3 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 TEST SUMMARY ....................................................................................................................................... 3 3 CONTENTS ................................................................................................................................................ 6 4 GENERAL INFORMATION ........................................................................................................................ 8 4.1 DETAILS OF E.U.T. ............................................................................................................................... 8 4.2 DESCRIPTION OF CBSD/DP SUPPORT FEATURES .....…

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Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031601 Page: 1 of 46 Eric Lin EMC Laboratory Manager TEST REPORT Application No.: KSCR2303000316AT FCC ID: WBK-RU4370 Applicant: BTI Wireless Address of Applicant: 11205 Knott Avenue – Suite A, Cypress, CA 90630 United States Manufacturer: BTI Wireless Address of Manufacturer: 11205 Knott Avenue – Suite A, Cypress, CA 90630 United States Factory: Sunwave Communications Co., Ltd. Address of Factory: 581 Huoju Avenue, Binjiang District Hangzhou China Equipment Under Test (EUT): EUT Name: Remote Radio Unit Model No.: RU4370 Trade mark: Standard(s) : 47 CFR Part 2 47 CFR Part 96 Date of Receipt: 2023-03-01 Date of Test: 2023-03-01 to 2023-03-06 Date of Issue: 2023-03-07 Test Result: Pass * In the configuration tested, the EUT complied with the standards specified above. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031601 Page: 2 of 46 Revision Record Version Chapter Date Modifier Remark 00 Original 2023-03-07 / Authorized for issue by: Cloud Peng / Project Engineer Eric Lin / Reviewer Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031601 Page: 3 of 46 2 Test Summary Test Item FCC Rule No. Verdict Effective (Isotropic) Radiated Power Output Data §2.1046, §96.41 PASS Peak-Average Ratio §96.41 PASS Modulation Characteristics §2.1047 PASS Bandwidth §96.41 PASS Band Edge Compliance §2.1051, §96.41 PASS Spurious emissions at antenna terminals §2.1051, §96.41 PASS Field strength of spurious radiation §2.1051, §96.41 PASS Frequency stability §2.1055, PASS Remark: This base station supports N48, N77 and N78, and the frequency range is 3550-3700MHz. So we evaluated and tested all the band of Power and PSD, and the rest of the test items were tested based on the maximum power. EUT: In this whole report EUT means Equipment Under Test. Tx: In this whole report Tx (or tx) means Transmitter. Rx: In this whole report Rx (or rx) means Receiver. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230300031601 Page: 4 of 46 3 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 TEST SUMMARY ....................................................................................................................................... 3 3 CONTENTS ................................................................................................................................................ 4 4 GENERAL INFORMATION ........................................................................................................................ 6 4.1 Details of E.U.T. ............................................................................................................................. 6 4.2 Test Frequency .............................................................................................................................. 6 4.3 Test Support Unit ........................................................................................................................... 7 4.4 Measurement Uncertainty .............................................................................................................. 7 4.5 Test Location ................................................................................................................................. 8 4.6 Test Facility ..................................................................…

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