2AMPB-20L4LCPA1Cell Phone Signal Booster

<<<UserManual CellPhoneSignalBooster lndoorport Bandwidth17M+25M+60M+45M RippleinBand LTE-B12≤6dB;CDMA≤6dB;PCS≤6dB;AWS≤6dB SpuriousEmission 9KHz~1GHz≤-36dBm 1GHz~12.75GHz ≤-30dBm IntermodulationProducts 9KHz~1GHz ≤-36dBm 1GHz~12.75GHz ≤-30dBm VSWR ≤3 MTBF ＞50000hours PowerSupply AC：100~240V,50/60Hz；DC：5V3A PowerComsumption <7.5W Impedance50ohm FrequencyRange FrequencyUplink Downlink LTE-B12729~74699~7166 CDMA824~849869~894 PCS1850~19101930~1990 AWS1710~17552110~2155 LSMHBand17704-716734-746 EPCSBand251850-19151930-1995 OutputPower Gain 55±3dB68±3dB 19±2dBm10±1dBm 20L.4.LCPA.1 Network LTE-B12、CDMA、PCS、AWS、EPCS、LSMH parameter ProductparametersProductdisplay signalintensity PowerSupply Outputgain Outputgain Outputgain MechanicalSpecification Channel model RFConnectorN-FemaleN Dimensions(D*W*H) 247*138*28mm Packingsize(D*W*H) 265*175*75mm Netweight <0.98KG Grossweight <1.27KG InstallationType WallInstallation EnvironmentConditions IP40 Humidity <90% OperatingTemperature -10°C~55°C Step1:Installtheoutdoor antennaontherooforother positionswhereyoucanreceive 4barsofsignalormore Step2:Connecttheoutdoor antennatotheBTSportviathe cableandtightenthe connectorsatbothends,make theoutdoorantennapointto thebasestation Step3:Connecttheindoor antennatotheMSport,and placetheindoorantennaata higherpositionsoasto increasesignalcoverage Step4:Afterconnectingand tighteningthetwoantennas, pluginthepowersupplyand checktheconditionofthe signaldisplaylight Step5:Checkwhetherthe phonesignalhasbeen improvedornot.Ifitisnotideal, youcanadjusttheheightor directionoftheoutdoor antenna.Agoodoutdoorsignal ishalfofthesuccess. Attention:Theremustbeasolid wallbetweentheindoor antennaandtheoutdoor antennatopreventself- oscillation. Indoorantenna ApplicationScenario residence Officebuilding FAQ Solutions Aftertheinstallation,the signalimprovementisnot significant,andthe indoorcoverageareais small 1.Adjustthepositionanddirectionofthe outdoorantenna 2.Checkifthecableisproperlyconnected 3.Raisetheoutdoorantennasothatitcan receivebettersignals 4.Replacehigh-poweramplifier 5.Replaceahighgainoutdoorantenna Thephonesignalisfull, butthecallqualityispoor Thedistancebetweenoutdoorandindoor antennasaretooclose,soitis necessarytoincreasethedistancebetween them,orincreasebarrierisolationbetween them Afterinstallation, thesignaldidnotimprove, butitwasworse Thedistancebetweenoutdoorandindoor antennasaretooclose,soitis necessarytoincreasethedistancebetween them,orincreasebarrierisolationbetween them Ihavebeenusingit normallybefore,but suddenlythesignalisnot goodafterusingitfora periodoftime 1.Checkifwateringressatoutdoorcablejoints 2.Checkifthepowerindicatorlightisnormal 3.Ifthereisnowateringressintothecableand thepowerindicatorlightisnormal,itispossible thattheamplifierhasmalfunctionedandneedsto bereturnedtothefactoryforrepair The antenna for the device must be installed to comply with the 10 meter above ground maximum antenna height FCC Statement This equipment should be installed and operated with a minumum distance of 2 0 cm between the radiator and your body. limitation basestation basement BarKTV hotel villa outdoorantenna host

Foshan lintratek Technology Co., Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Foshan lintratek Technology Co., Ltd. Address: Room 101, First Floor, No. 8, Xiaowugang Garden Ceramic Factory, Shiwan, Chancheng District, Foshan, China Product Name: Cell Phone Signal Booster FCC ID: 2AMPB-20L4LCPA1 Model(s): 20L.4.LCPA.1 2.911(d)(5)(i) Equipment Type We, Foshan lintratek Technology Co., Ltd. (“the applicant”) certify that the equipment for which authorization is sought through certification is not:  Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules.  Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: Peter Shi Date: 2023-05-29 Title: Manager Company name: Foshan lintratek Technology Co., Ltd. NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Foshan lintratek Technology Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Foshan lintratek Technology Co., Ltd. Address: Room 101, First Floor, No. 8, Xiaowugang Garden Ceramic Factory, Shiwan, Chancheng District, Foshan, China Product Name: Cell Phone Signal Booster FCC ID: 2AMPB-20L4LCPA1 Model(s): 20L.4.LCPA.1 2.911(d)(5)(ii) Applicant filing We, [Foshan lintratek Technology Co., Ltd.] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Peter Shi Date: 2023-05-29 Title and Company name: Manager Foshan lintratek Technology Co., Ltd. NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Foshan lintratek Technology Co., Ltd. Agent Authorization Company: Foshan lintratek Technology Co., Ltd. Address: Room 101, First Floor, No. 8, Xiaowugang Garden Ceramic Factory, Shiwan, Chancheng District, Foshan, China Product Name: Cell Phone Signal Booster Model Number(s): 20L.4.LCPA.1 Product Description: Cell Phone Signal Booster We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2023-06-28 Name: Peter Shi Title: Manager Company: Foshan lintratek Technology Co., Ltd.

Foshan lintratek Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-06-28 Subject; Request for Long Term Confidentiality FCC ID: 2AMPB-20L4LCPA1 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram BOM Operational Description Tune-up Procedure SOFTWARE SECURITY REQUIREMENTS FOR U-NII DEVICES It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Peter Shi Title: Manager

RF EXPOSURE EVALUATION EUT Specification EUT Cell Phone Signal Booster Model Number 20L.4.LCPA.1 FCC ID 2AMPB-20L4LCPA1 Antenna gain (Max) Mode Frequency(MHz) Antenna Gain(dBi) Cable loss(dB) UP LINK 1850-1910 10 3 824 - 849 10 3 1710 - 1755 10 3 704 - 716 10 3 699 - 716 10 3 1850-1915 10 3 DOWNLINK 1930-1990 9 3 869 - 894 9 3 2110 - 2155 9 3 734-746 9 3 729 - 746 9 3 1930-1995 9 3 Operation Frequency Cellular:Uplink: 824MHz - 849MHz, Downlink: 869MHz - 894MHz AWS-1:Uplink: 1710 - 1755MHz, Downlink: 2110 - 2155MHz Lower A-C Blocks:Uplink: 698 - 716MHz, Downlink: 728 - 746MHz Broadband PCS:Uplink: 1850-1915MHz, Downlink: 1930-1995MHz Input Rating DC 5V from Switching Power Supply Max. output power Cellular (LTE Band 5): Uplink: 824MHz - 849MHz,18.70dBm, Downlink: 869MHz - 894MHz,10.85dBm AWS(LTE Band 4): Uplink: 1710 - 1755MHz, 17.80dBm, Downlink: 2110 - 2155MHz, 10.70dBm LSMH (LTE Band 12): Uplink: 698 - 716MHz, 17.88dBm, Downlink: 728 - 746MHz, 10.94dBm EPCS (LTE Band 25): Uplink: 1850-1915MHz, 20.26dBm, Downlink: 1930-1995MHz, 10.49dBm Test Requirement: According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500-100000 -- -- 1 30 11.1 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R 2 ) Where Pd= Power density in mW/cm 2 Pout=output power to antenna in mW G= Numeric gain of the antenna relative to isotropic antenna Pi=3.1416 R= distance between observation point and center of the radiator in cm=20cm Date: 2023-06-20 Pd the limit of MPE, 1mW/cm 2 . If we know the maximum gain of the nd total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. 11.2 Measurement Result Signature: Stone Tang Operating Mode Frequency(MHz) Tune up tolerance (dBm) Max tune up conducted power(dBm) Cable loss EIRP(mW) Ant. Gain(dBi) Power density at 20cm (mW/ cm2) Power density Limits(mW/cm2 ) UL824 -849 19±1 20 3 501.187 10 0.099758 0.55 DL 869-894 11±1 12 3 63.096 9 0.012559 0.58 UL1710 -1755 18±1 19 3 398.107 10 0.079241 1 DL 2110-2155 11±1 12 3 63.10 9 0.012560 1 UL698-716 18±1 19 3 398.11 10 0.079242 0.47 DL 728-746 11±1 12 3 63.10 9 0.012560 0.49 UL1850-1915 20±1 21 3 630.957 10 0.125589 1 DL 1930-1995 10±1 11 3 50.119 9 0.009976 1

Antenna Kitting Information (1)Usage of unauthorized antennas, cables, and/or coupling devices may result in poor effect and, in severe cases, equipment damage. (2)a complete list of authorized antennas, cables, and/or coupling devices: (3)the default antenna, cable, and/or coupling device that are shipped with the booster Log-periodic Antenna, Panel Antenna and Coaxial Cable. (4)The antenna is equipped with a U-shaped mounting bracket. The log- periodic antenna should be installed in a place with good outdoor signal. The panel antenna should be installed indoors and near the main device. If the amplification effect is not good after the installation is completed, the direction of the log-periodic antenna can be gradually adjusted to achieve better effect.

FoshanlintratekTechnologyCo.,Ltd. Jun.30,2023 Attestationforsignalbooster:FCC ID:2AMPB-20L4LCPA1 EachSignalBoostercertificatedunderFCCID:2AMPB-20L4LCPA1ismanufactured andindividuallytestedtoensureFCCcompliance: (1)LicenseeconsentforFixedconsumerboosterhasbeenobtained(consentbemade availableuponFCC/TCBrequest) (2)NPSandothercompliance/safeguardfeatureshavebeenimplemented (3)NPSandothercompliance/safeguardfeaturesaredefaultedto“ON”configuration(inoperation) (4)NPSandothercompliance/safeguardfeaturescannotbefieldreconfigured,disabledor removed (5)ThisConsumerboosterisnotuserprogrammable,doesnotneedfinetuningor adjustment,doesnotrequireprofessionalinstallation. (6)Futuresoftwareupgradewillnotcausenon-compliance . Yourssincerely, PeterShi

Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 1 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China RF Test Report For Applicant Name: Foshan lintratek Technology Co., Ltd. Address: Room 101, First Floor, No. 8, Xiaowugang Garden Ceramic Factory, Shiwan, Chancheng District, Foshan, China EUT Name: Cell Phone Signal Booster Brand Name: LINTRATEK Model Number: 20L.4.LCPA.1 Series Model Number: Refer to section 2 Issued By Company Name: BTF Testing Lab (Shenzhen) Co., Ltd. Address: F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Report Number: BTF230627R00101 Test Standards: 47 CFR Part 20.21 Test Conclusion: Pass FCC ID: 2AMPB-20L4LCPA1 Test Date: 2023-05-18 to 2023-07-08 Date of Issue: 2023-07-10 Prepared By: Elma yang / Project Engineer Date: 2023-07-10 Approved By: Ryan.CJ / EMC Manager Date: 2023-07-10 Note: All the test results in this report only related to the testing samples. Which can be duplicated completely for the legal use with approval of applicant; it shall not be reproduced except in full without the written approval of BTF Testing Lab (Shenzhen) Co., Ltd., All the objections should be raised within thirty days from the date of issue. To validate the report, you can contact us. Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 2 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Revision History Version Issue Date Revisions Content R_V0 2023-07-10 Original Note: Once the revision has been made, then previous versions reports are invalid. Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 3 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Table of Contents 1 INTRODUCTION ..........................................................................................................................................5 1.1 Identification of Testing Laboratory ...............................................................................................5 1.2 Identification of the Responsible Testing Location ......................................................................5 1.3 Announcement .................................................................................................................................5 2 PRODUCT INFORMATION ..........................................................................................................................6 2.1 Application Information ...................................................................................................................6 2.2 Manufacturer Information ................................................................................................................6 2.3 Factory Information .........................................................................................................................6 2.4 General Description of Equipment under Test (EUT) ...................................................................6 2.5 Technical Information ......................................................................................................................6 3 SUMMARY OF TEST RESULTS .................................................................................................................8 3.1 Test Standards ..................................................................................................................................8 3.2 Uncertainty of Test ...........................................................................................................................8 3.3 Summary of Test Result ..................................................................................................................8 4 TEST CONFIGURATION .............................................................................................................................9 4.1 Test Equipment List .........................................................................................................................9 4.2 Test Auxiliary Equipment ................................................................................................................9 5 RADIO SPECTRUM MATTER TEST RESULTS (RF) .............................................................................. 10 5.1 Authorized Frequency Band Verification .................................................................................... 10 5.1.1 E.U.T. Operation: ................................................................................................................. 10 5.1.2 Test Data: ............................................................................................................................ 10 5.2 Maximum Power ............................................................................................................................ 15 5.2.1 E.U.T. Operation: ................................................................................................................. 16 5.2.2 Test Data: ............................................................................................................................ 16 5.3 Maximum Booster Gian Computation ......................................................................................... 28 5.3.1 E.U.T. Operation: ................................................................................................................. 28 5.3.2 Test Data: ...…

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Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 51 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Band 12 DL Right Side Pre AGC Band 12 DL Right Side Max Input Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 52 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Band 25 UL Left Side Pre AGC Band 25 UL Left Side Max Input Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 53 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Band 25 UL Right Side Pre AGC Band 25 UL Right Side Max Input Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 54 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Band 25DL Left Side Pre AGC Band 25 DL Left Side Max Input Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 55 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Band 25 DL Right Side Pre AGC Band 25 DL Right Side Max Input Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 56 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China 5.6 Spurious Emissions At Antenna Terminals Test Requirement: The following procedures shall be used to demonstrate compliance to the applicable conducted spurious emissions limits as per §2.1051. Note: For frequencies below 1 GHz, an RBW of 1 MHz may be used in a preliminary measurement. If non-compliant emissions are detected, a final measurement shall be made with a 100 kHz RBW. Additionally, a peak detector may also be used for the preliminary measurement. If non-compliant emissions are detected then a final measurement of these emissions shall be made with the power averaging (RMS) detector. Limit: -13 dBm； For equipment operating in the frequency bands 746-756 MHz and 777-787 MHz, The power of any unwanted emissions in any 6.25 kHz bandwidth for all frequencies between 763-775 MHz and 793-806 MHz shall be attenuated below the transmitter power, P (dBW), by at least: (i) 76 + 10 log10 p (watts), dB, for base and fixed equipment, and (ii) 65 + 10 log10 p (watts), dB, for mobile and portable equipment. Test Setup: Procedure: a) Connect the EUT to the test equipment as shown in Figure 1. Begin with the uplink output connected to the spectrum analyzer. b) Configure the signal generator for AWGN with an emissions bandwidth of 4.1 MHz operation with a center frequency corresponding to the center of the operational band under test and with a bandwidth representative of the bandwidth of the uplink or downlink signal. c) Set the signal generator amplitude to the level determined in the power measurement procedure in 7.2. d) Turn on the signal generator RF output and measure the spurious emission power levels with an appropriate measurement instrument as follows. e) Set RBW = measurement bandwidth specified in the applicable rule section for the operational frequency band under consideration (see Annex A for relevant cross-references). Note that many of the individual rule sections permit the use of a narrower RBW (typically ≥ 1% of the emission bandwidth) in order to enhance measurement accuracy, but the result must then be integrated over the specified measurement bandwidth. f) Set VBW = 3 X RBW. g) Select the power averaging (RMS) detector. (See above note regarding the use of a peak detector for preliminary measurements.) h) Sweep time = auto-couple. i) Set the analyzer start frequency to the lowest radio frequency signal generated in the equipment, without going below 9 kHz, and the stop frequency to the lower band/block edge frequency minus 100 kHz or 1 MHz, as specified in the applicable rule part. Note that the number of measurement points in each sweep must be ≥ (2 x span/RBW) which may require that the measurement range defined by the start and stop frequencies above be subdivided, depending on the Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 57 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China available number of measurement points provided by the spectrum analyzer trace average at least 10 traces in power averaging (i.e., RMS) mode. j) Use the peak marker function to identify the highest amplitude level over each measured frequency range. Record the frequency and amplitude and capture a plot for inclusion in the test report. k) Reset the analyzer start frequency to the upper band/block edge frequency plus 100 kHz or 1 MHz, as specified in the applicable rule part, and the analyzer stop frequency to 10 times the highest frequency of the fundamental emission. Note that the number of measurement points in each sweep must be ≥ (2 x span/RBW) which may require that the measurement range…

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Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 101 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Band 12 DL Input Band 12 DL output Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 102 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China 5.11 Oscillation Detection Test Requirement: This measurement is required to demonstrate compliance to the Anti-Oscillation specification for Wideband Consumer Signal Boosters provided in §20.21(e)(8)(ii)(A) For this measurement two EUTs will be permitted, one operating in a normal mode and the second operating in a test mode that is capable of disabling the uplink inactivity squelching and or a reduction of the time between restarts to 5 seconds. This will greatly decrease the test time required. Test setup: Procedure: a) Connect the EUT set for normal operation to the test equipment as shown in Figure 8 beginning with the RF detector on the uplink output side of the RF path. Ensure that the RF coupled path is connected to the RF detector. Note: The band pass filter shall provide sufficient out-of-band rejection to prevent oscillations from occurring in bands not under test. b) Set the oscilloscope for a positive edge trigger and single trigger operation. c) Set the attenuation as necessary until the oscilloscope triggers and increase the attenuation level to a point 10 dB above that point. d) Reset the trigger of the oscilloscope and reset the EUT with a power cycle. e) Force the EUT to oscillate this will trigger the oscilloscope. f) Use the CURSOR function of the oscilloscope to measure the time from the detection of oscillation until the EUT turns off by setting CURSOR 1 on the leading edge of the signal and CURSOR 2 on the trailing edge. Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 103 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China g) Capture the oscilloscope trace for inclusion in the test report. h) Repeat steps 7.11.2 to 7.11.7 for all operational uplink and downlink bands. i) Set the oscilloscope time base for longer than 1 minute and measure the restart time for each operational uplink and downlink band. j) Replace the normal operating EUT for the EUT with the test mode. k) Set the oscilloscope time base for a minimum 120 seconds with an AUTO Trigger and a single sweep. l) Start the Oscilloscope and a manually force the booster into oscillation. m) When the sweep is complete place cursors between the first two oscillation detections and save the plot for inclusion in the test report. The time between restarts must match the manufacturer’s timing for the test mode and there can be no more than 5 restarts. n) Repeat steps 7.11.12 to 7.11.13 for all operational uplink and downlink bands. Note: In lieu of an oscilloscope and RF detector, a spectrum analyzer set for 0 span, can be used to enhance sensitivity, with a center frequency set equal to the center of the operational band for broadband oscillation or a discrete frequency of oscillation. RBW shall be at least 1 MHz with VBW ≥ 3 times RBW using a peak detector. 5.11.1 E.U.T. Operation: Operating Environment: Temperature: −30 °C and +50 Humidity: 46.3 % Atmospheric Pressure: 1010 mbar 5.11.2 Test Data: Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 104 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Test results of detection time Operation Bands Detection Time(s) Limit(s) Result Uplink Band 25 0.030 0.300 PASS CDMA 0.030 0.300 PASS Band 4 0.035 0.300 PASS Band 12 0.040 0.300 PASS Downlink Band 25 0.045 1.000 PASS CDMA 0.040 1.000 PASS Band 4 0.035 1.000 PASS Band 12 0.040 1.000 PASS Test results of detection time Operation Bands Restarting Time(s) Limit(s) Restarting Counts Limit Result Uplink Band 25 73.8 60 3 5 PASS CDMA 61.0 60 2 5 PASS Band 4 61.2 60 2 5 PASS Band 12 70.2 60 3 5 PASS Downlink Band 25 71.4 60 2 5 PASS CDMA 62.8 60 2 5 PASS Band 4 60.8 60 2 5 PASS Band 12 79.5 60 3 5 PASS Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 105 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Test Test Plots of detection time CDMA UL CDMA DL Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 106 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Band 4 UL Band 4 DL Test Report Number: BTF230627R00101 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 107 of 128 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industr…

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