2ARIJ06139Mini RC Monster Truck

1 1 2 2 3 3 4 4 DD CC BB AA Title NumberRevisionSize A4 Date:2020/5/14Sheet of File:E:\2018 PCB\..\8171T49M.SchDocDrawn By: POWER SUPPLY CARRYING FREQUENCY GENERATOR(49.860MHz)AND MODULATOR MODULATION FREQUENCY GENERATOR FUNCTION KEY ANTENNA 49.860MHz TX BLOCK DIAGRAM 8171T 49M 49.86MHz Oscillator

PMT Holdings Limited Room 511, 5/F., Peninsula Centre, 67 Mody Road, Tsimshatsui East, Kowloon, Hong Kong Tel: 852-2327-8088 Fax: 852-2351-1754 Email: [email protected] Letter of Agency "I, an officer of PMT Holdings Limited do hereby authorize Intertek Testing Services (Mr. Terry Chan / Koo Wai Ip / Kenneth Wong) to act on our behalf in front of the Federal Communications Commission with respect to all matters relating to certification of equipment under Part 15 and Part 18 of the FCC Rules until further notice." I further certify that no party (as defined in §1.2002(b) of CFR 47, 2004) to this application, including myself, 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. Dated: 11 May of 2020 By Signature Ricky Lam Printed Name Operation Manager Title Remark: The person who signs this authorization letter must be the grantee contact of record in the Grantee Code data base. Dec 2013

INTERTEK TESTING SERVICE FCC ID: 2ARIJ06139 Equipment Photographs (External) INTERTEK TESTING SERVICE FCC ID: 2ARIJ06139 Equipment Photographs (External)

INTERTEK TESTING SERVICE FCC ID: 2ARIJ06139 Equipment Photographs (Internal) INTERTEK TESTING SERVICE FCC ID: 2ARIJ06139 Equipment Photographs (Internal) INTERTEK TESTING SERVICE FCC ID: 2ARIJ06139 Equipment Photographs (Internal) INTERTEK TESTING SERVICE FCC ID: 2ARIJ06139 Equipment Photographs (Internal)

Technical Description The Equipment Under Test (EUT) is portable controller for a RC car set which operates at 49.860MHz. The EUT is power by 2 x 1.5V AA batteries. After switch on the EUT, the car will be moved forward or backward, turned left or right based on the joystick control on the controller. Antenna Type: External Dedicated Whip Antenna Antenna Gain: 5dBi Nominal rated field strength is 64.9 dBμV/m at 3m Maximum allowed production tolerance: +/- 3dB The brief circuit description is listed as below: 1) L1. L4 and C2 act as an Antenna Circuit. 2) X1 and Q1 act as a 49.860MHz oscillator. 3) Q2 acts as Modulator and Amplifier.

Analysis Report The Equipment Under Test (EUT) is portable controller for a RC car set which operates at 49.860MHz. The EUT is power by 2 x 1.5V AA batteries. After switch on the EUT, the car will be moved forward or backward, turned left or right based on the joystick control on the controller. Antenna Type: External Dedicated Whip Antenna Antenna Gain: 5dBi Nominal rated field strength: 64.9dB μV/m at 3m Maximum allowed field strength of production tolerance: +/- 3dB According to the KDB 447498: Based on the Maximum allowed field strength of production tolerance was 54.6dB μV/m at 3m in frequency 49.860MHz, thus; The worst case of SAR Exclusion Threshold Level for 49.860MHz when the minimum test separation distance is < 50mm: = [474 * (1 + log100/f(MHz))]/2 = 308.6mW According to the KDB 412172 D01: EIRP = [(FS*D) ^2*1000 / 30] Calculated Field Strength for 308.6mW is 120.1dBuV/m @3m Since maximum field strength plus production tolerance < = 120.1dBuV/m @3m and antenna gain is > = 0.0dBi, it is concluded that maximum Conducted Power and Field Strength are well below the SAR Exclusion threshold level, so the EUT is considered to comply with SAR requirement without testing.

1 1 2 2 3 3 4 4 DD CC BB AA Title NumberRevisionSize A4 Date:2020/5/14Sheet of File:E:\2018PCB\..\49M.SCHDOCDrawn By: ANT L1 2.7uH L4/R nc C2 56P GND Q2 8050S GND C6 501P R5 10K GND Q1 9014 C5 12P L2 1.0uH L3 3.3uH X1 49.860MHz R3 150K VCC GND 18 7 6 54 3 2 U1 4116 C1 104P GND GND VCC LED1 RED R1 1K GND SW1 F SW2 B SW4 R SW3 L 8171T 49M GND T1 NC C4 NC C3 NC R6 NC Crystal oscillator Text P0ANT01 P0C101 P0C102 P0C201 P0C202 P0C301 P0C302 P0C401 P0C402 P0C501 P0C502 P0C601 P0C602 P0L101 P0L102 P0L201 P0L202 P0L301 P0L302 P0L4/R01 P0L4/R02 P0LED101 P0LED102 P0Q10B P0Q10C P0Q10E P0Q20B P0Q20C P0Q20E P0R101 P0R102 P0R301 P0R302 P0R501 P0R502 P0R601 P0R602 P0SW101 P0SW102 P0SW201 P0SW202 P0SW301 P0SW302 P0SW401 P0SW402 P0T100 P0T101 P0T102 P0T10C P0T10OUT P0U101 P0U102 P0U103 P0U104 P0U105 P0U106 P0U107 P0U108 P0X101 P0X102 P0C101 P0C202 P0C602 P0LED102 P0Q10E P0Q20E P0SW102 P0SW202 P0SW302 P0SW402 P0U105 P0ANT01 P0L102 P0C201 P0L101 P0L4/R02 P0C301 P0C401 P0T10C P0C302 P0C502 P0L201 P0Q10C P0T10OUT P0X102 P0C402 P0Q10B P0R301 P0R601 P0X101 P0C501 P0C601 P0Q20B P0R502 P0L301 P0Q20C P0L4/R01 P0LED101 P0R101 P0R102 P0R302 P0U108 P0R501 P0R602 P0U106 P0SW101 P0U104 P0SW102 P0SW201 P0U103 P0SW202 P0SW301 P0U102 P0SW302 P0SW401 P0U101 P0SW402 P0C102 P0L202 P0L302 P0T100 P0T101 P0T102 P0U107

2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong SAR, China. Telephone: (852) 2173 8888 Facsimile: (852) 2785 5487 www.intertek.com Intertek’s standard Terms and Conditions can be obtained at our website http://www.intertek.com/terms/. The test report only allows to be revised within the retention period unless further standard or the requirement was noticed. This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification program. © 2017 Intertek Page 1 of 15 TEST REPORT Report No.: 20050182HKG‐001 PMT Holdings Limited Application For Certification (Original Grant) FCC ID: 2ARIJ06139 Transmitter Prepared and Checked by: Approved by: Signed On File Lee For Yiu, Florey Assistant Engineer Wong Kwok Yeung, Kenneth Senior Lead Engineer Date: May 25, 2020 TEST REPORT PMT Holdings Limited Intertek Report No: 20050182HKG‐001 Page 2 of 15 GENERAL INFORMATION Grantee: PMT Holdings Limited Grantee Address: Room 511, 5/F., Peninsula Centre, 67 Mody Road, Tsim Sha Tsui East, Kowloon, Hong Kong Contact Person: Ricky Lam Tel: 2328 8933 Fax: 2351 1754 e‐mail: N/A Manufacturer: PMT Holdings Limited Manufacturer Address: Room 511, 5/F., Peninsula Centre, 67 Mody Road, Tsim Sha Tsui East, Kowloon, Hong Kong Brand Name: PMT HOLDINGS LIMITED Model: 06139 Type of EUT: Transmitter Description of EUT: Mini RC Monster Truck Serial Number: N/A FCC ID: 2ARIJ06139 Date of Sample Submitted: May 06, 2020 Date of Test: May 06, 2020 to May 21, 2020 Report No.: 20050182HKG‐001 Report Date: May 25, 2020 Environmental Conditions: Temperature: +10 to 40°C Humidity: 10 to 90% Conclusion: Test was conducted by client submitted sample. The submitted sample as received complied with the 47 CFR Part 15 Certification. TEST REPORT PMT Holdings Limited Intertek Report No: 20050182HKG‐001 Page 3 of 15 SUMMARY OF TEST RESULT Test Specification Reference Results Transmitter Field Strength and Bandwidth Requirement 15.235 Pass The equipment under test is found to be complying with the following standards: FCC Part 15, October 1, 2018 Edition TEST REPORT PMT Holdings Limited Intertek Report No: 20050182HKG‐001 Page 4 of 15 TABLE OF CONTENTS 1.0 GENERAL DESCRIPTION ................................................................................................5 1.1 Product Description .................................................................................................5 1.2 Related Submittal(s) Grants......................................................................................5 1.3 Test Methodology....................................................................................................5 1.4 Test Facility ..............................................................................................................5 2.0 SYSTEM TEST CONFIGURATION.....................................................................................6 2.1 Justification..............................................................................................................6 2.2 EUT Exercising Software...........................................................................................6 2.3 Special Accessories...................................................................................................6 2.4 Measurement Uncertainty.......................................................................................6 2.5 Support Equipment List and Description ..................................................................6 3.0 EMISSION RESULTS.......................................................................................................7 3.1 Field Strength Calculation.........................................................................................7 3.2 Radiated Emission Configuration Photograph...........................................................8 3.3 Radiated Emission Data............................................................................................8 4.0 EQUIPMENT PHOTOGRAPHS ......................................................................................10 5.0 PRODUCT LABELLING..................................................................................................10 6.0 TECHNICAL SPECIFICATIONS .......................................................................................10 7.0 INSTRUCTION MANUAL..............................................................................................10 8.0 MISCELLANEOUS INFORMATION ................................................................................11 8.1 Measured Bandwidth.............................................................................................11 8.2 Discussion of Pulse Desensitization ........................................................................12 8.3 Calculation of Average Factor.................................................................................12 8.4 Emissions Test Procedures .....................................................................................12 9.0 EQUIPMENT LIST........................................................................................................15 TEST REPORT PMT Holdings Limited I…

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INTERTEK TESTING SERVICE FCC ID: 2ARIJ06139 Configuration Photographs Worst-Case Radiated Emissions (Front View) INTERTEK TESTING SERVICE FCC ID: 2ARIJ06139 Configuration Photographs Worst-Case Radiated Emissions (Back View)