OKP1938BToy Car RX

Wow Wee International Ltd. Application For Certification (FCC ID: OKP1938B) Superregenerative Receiver WO# 0003691 WN/at May 23, 2000 INTERTEK TESTING SERVICES FCC ID: OKP1938B i LIST OF EXHIBITS INTRODUCTION EXHIBIT 1 :General Description EXHIBIT 2 :System Test Configuration EXHIBIT 3 :Emission Results EXHIBIT 4 :Equipment Photographs EXHIBIT 5 :Product Labelling EXHIBIT 6 :Technical Specifications EXHIBIT 7 :Instruction Manual EXHIBIT 8 :Miscellaneous Information INTERTEK TESTING SERVICES FCC ID: OKP1938B ii MEASUREMENT/TECHNICAL REPORT Wow Wee International Ltd. - MODEL: 1938 FCC ID: OKP1938B This report concerns (check one:)Original Grant X Class II Change _____ Equipment Type: Superregenerative Receiver (example: computer, printer, modem, etc.) Deferred grant requested per 47 CFR 0.457(d)(1)(ii)?Yes No X If yes, defer until: date Company Name agrees to notify the Commission by: date of the intended date of announcement of the product so that the grant can be issued on that date. Transition Rules Request per 15.37?Yes No X If no, assumed Part 15, Subpart B for unintentional radiator - the new 47 CFR [10-1-96 Edition] provision. Report prepared by:Wilbur Ng Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576, Castle Peak Road, Kowloon, Hong Kong Phone:852-2173-8502 Fax:852-2745-8306 INTERTEK TESTING SERVICES FCC ID: OKP1938B iii Table of Contents 1.0General Description........................................................................................................ 2 1.1Product Description............................................................................................... 2 1.2Related Submittal(s) Grants................................................................................... 2 1.3Test Methodology.................................................................................................. 3 1.4Test Facility........................................................................................................... 3 2.0System Test Configuration.............................................................................................. 5 2.1Justification............................................................................................................ 5 2.2EUT Exercising Software ...................................................................................... 5 2.3Support Equipment List and Description ................................................................ 5 2.4Equipment Modification........................................................................................ 6 2.5Special Accessories ............................................................................................... 6 3.0Emission Results.............................................................................................................. 8 3.1Field Strength Calculation ..................................................................................... 9 3.2Radiated Emission Configuration Photograph ..................................................... 10 3.3Radiated Emission Data ....................................................................................... 11 4.0Equipment Photographs................................................................................................ 14 5.0Product Labelling........................................................................................................... 16 6.0Technical Specifications................................................................................................. 18 7.0Instruction Manual......................................................................................................... 20 8.0Miscellaneous Information............................................................................................ 22 8.1Stabilization Waveform........................................................................................ 23 8.2Discussion of Pulse Desensitization ..................................................................... 24 8.3Calculation of Average Factor ............................................................................. 25 8.4 Emissions Test Procedures ................................................................................... 26 8.4Emissions Test Procedures (cont) ......................................................................... 27 INTERTEK TESTING SERVICES FCC ID: OKP1938B iv List of attached file Exhibit typeFile Descriptionfilename Cover LetterLetter of Agencyletter.pdf Test ReportTest Reportreport.doc Test Setup PhotoRadiated Emissionradiated1.jpg, radiated2.jpg Test ReportBandwidth Plotbw.pdf External PhotoExternal Photoophoto1.jpg to ophoto2.jpg Internal PhotoInternal Photoiphoto1.jpg to iphoto2.jpg Block DiagramBlock Diagramblock.pdf SchematicsCircuit Diagramcircuit.pdf ID Label/LocationLabel Artwork and Locationlabel.pdf User ManualUser Manualmanual.pdf INTERTEK TESTING SERVICES FCC ID: OKP1938B 1 EXHIBIT 1 GENERAL DESCRIPTION INTERTEK TESTING SERVICES FCC ID: OKP1938B 2 1.0General Description 1.1Product Description The equipment under test (EUT) is receiver for Remote Control Toy operating at 49.860 MHz which is controlled by a crystal LC network. The EUT is powered by 4 AAA batteries. a) When there is no transmission, the RX unit stops. b) When control bars are pushed forward, the RX unit will go forward. c) When control bars are pull back, the RX unit will go backward. d) When one control bar is pushed forward and the other one pull backward; the RX unit will turn around. e) When top-left knob is pressed, the unit will go forward. f) When top-right knob is pressed, the unit will go backward. g) When front leftmost knob is pressed, the unit turns right. h) When front rightmost knob is pressed, the unit turns left. i) When front middle knobs are pressed, the unit shaking. The brief circuit description is listed as follows: - L 2 , R 1 , C 4 and associated circuit act as local oscillator. - Q 1 and as…

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