J7IER37227MHz R/C Toy Transmitter

INSTRUCTION SHEET FOR ER372 MINI ANIMAL REMOTE CONTROL UNIT FOR CONTROLLER BATTERY INSTALLATION: 1. Loosen screw on battery compartment cover, 2. Place one new “9Volt” battery in correct polarities and direction of battery compartment. 3. Put the battery compartment cover back and secure the screw. HOW TO OPERATE 1. Press “forward” button of controller to let the vehicle move forward. 2. Press spin button of controller to let the vehicle turns clockwise. Note: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such Modifications could void the user’s authority to operate the equipment.

FCC ID LABEL LOCATION

FCC ID LABEL LOCATION

YICK SHUN ELECTRONIC TOYS MFY., LTD. ER372 (MINI ANIMAL RC) Circuit Description: This unit is a low power remote control transmitter. Q3 is a crystal controlled oscillator. Transistors Q1 & Q2 forms a multivibrator circuit that keys the transmitter on and off. The unit operates in the 27 Mhz. RC Band . No voice or tone modulation is provided ANTENNA AND GROUND CIRCUITRY This unit makes use of a external 5” antenna. The antenna is inductively coupled. This unit is powered from a 9V battery. No ground connection is provided. The unit relies on the ground tract of the printed circuit board.

APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD. FCC ID: J7IER372 REPORT #: y/yick/772H1/772H1RPT.doc PAGE #: TABLE OF CONTENTS TABLE OF CONTENTS APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7IER372 TEST REPORT CONTAINING: PAGE 1......TEST EQUIPMENT LIST AND TEST PROCEDURE PAGE 2......TEST PROCEDURE CONTD. PAGE 3......RADIATION INTERFERENCE TEST DATA PAGE 4......OCCUPIED BANDWIDTH TEST DATA PAGE 5......OCCUPIED BANDWIDTH PLOT EXHIBITS CONTAINING: EXHIBIT 1............BLOCK DIAGRAM EXHIBIT 2............SCHEMATIC EXHIBIT 3............INSTRUCTION MANUAL EXHIBIT 4............SAMPLE OF FCC ID LABEL EXHIBIT 5............LOCATION OF FCC ID LABEL EXHIBIT 6............EXTERNAL PHOTO - FRONT SIDE EXHIBIT 7............EXTERNAL PHOTO - BACK SIDE EXHIBIT 8............INTERNAL PHOTO - COMPONENT SIDE EXHIBIT 9............INTERNAL PHOTO - COPPER SIDE EXHIBIT 11...........CIRCUIT DESCRIPTION EXHIBIT 12...........TEST SETUP PHOTOGRAPH APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD. FCC ID: J7IER372 REPORT #: y/yick/772H1/772H1RPT.doc PAGE #: Page 1 of 5 APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7IER372 TEST EQUIPMENT LIST 1. Spectrum Analyzer: HP 8566B-Opt 462, S/N 3138A07786, w/ preselector HP 85685A, S/N 3221A01400, Quasi-Peak Adapter HP 8565OA, S/N 3303A01690 & Preamplifier HP 8449B-OPT H02, S/N 3008A00372 2. Biconnical Antenna: Eaton Model 94455-1, S/N 1057 3. Biconnical Antenna: Electro-Metrics Model BIA-25, S/N 1171 4. Log-Periodic Antenna: Electro-Metrics Model EM-6950, S/N 632 5. Log-Periodic Antenna: Electro-Metrics Model LPA-30, S/N 409 6. Double-Ridged Horn Antenna: Electro-Metrics Model RGA-180, 1-18 GHz, S/N 2319 7. 18-26.3GHz Systron Donner Standard Gain Horn #DBE-520-20 8. Horn 40-60GHz: ATM Part #19-443-6R 9. Line Impedance Stabilization Network: Electro-Metrics Model ANS-25/2, S/N 2604 10. Temperature Chamber: Tenney Engineering Model TTRC, S/N 11717-7 11. Frequency Counter: HP Model 5385A, S/N 3242A07460 12. Peak Power Meter: HP Model 8900C, S/N 2131A00545 13. Open Area Test Site #1-3meters 14. Signal Generator: HP 8640B, S/N 2308A21464 15. Signal Generator: HP 8614A, S/N 2015A07428 16. Passive Loop Antenna: EMCO Model 6512, 9KHz to 30MHz, S/N 9706-1211 17. Dipole Antenna Kit: Electro-Metrics Model TDA-30/1-4, S/N 153 18. AC Voltmeter: HP Model 400FL, S/N 2213A14499 19. Digital Multimeter: Fluke Model 8012A, S/N 4810047 20. Digital Multimeter: Fluke Model 77, S/N 43850817 21. Oscilloscope: Tektronix Model 2230, S/N 300572 TEST PROCEDURE GENERAL: This report shall NOT be reproduced except in full without the written approval of TIMCO ENGINEERING, INC. RADIATION INTERFERENCE: The test procedure used was ANSI STANDARD C63.4-1992 using a HEWLETT PACKARD spectrum analyzer with a prese- lector. The bandwidth of the spectrum analyzer was 100 kHz with an appropriate sweep speed. The analyzer was calibrated in dB above a microvolt at the output of the antenna. The resolution bandwidth was 100KHz and the video bandwidth was 300KHz. The ambient temperature of the UUT was 92º with a humidity of 48%. APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD. FCC ID: J7IER372 REPORT #: y/yick/772H1/772H1RPT.doc PAGE #: Page 2 of 5 APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7IER372 TEST PROCEDURES CONTINUED FORMULA OF CONVERSION FACTORS: The Field Strength at 3m was estab- lished by adding the meter reading of the spectrum analyzer (which is set to read in units of dBuV) to the antenna correction factor sup- plied by the antenna manufacturer. The antenna correction factors are stated in terms of dB. The gain of the Preselector was accounted for in the Spectrum Analyzer Meter Reading. Example: Freq (MHz) METER READING + ACF = FS 33 20 dBuV + 10.36 dB = 30.36 dBuV/m @ 3m ANTENNA_AND_GROUND_CIRCUITRY This unit makes use of a short, antenna. The antenna is induc- tively coupled. The antenna is self contained, no provision is made for an external antenna. This unit is powered from a 9.0V battery. No ground connection is provided. The unit relies on the ground tract of the printed circuit board. APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD. FCC ID: J7IER372 REPORT #: y/yick/772H1/772H1RPT.doc PAGE #: Page 3 of 5 APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7IER372 NAME OF TEST: RADIATION INTERFERENCE RULES PART NO.: 15.227 REQUIREMENTS: CARRIER FREQUENCY WILL NOT EXCEED 80 dBuV/m AT 3M. OUT-OF-BAND EMISSIONS SHALL NOT EXCEED: 30 - 88 MHz 40.0 dBuV/M MEASURED AT 3 METERS 88 - 216 MHz 43.5 dBuV/M 216 - 960 MHz 46.0 dBuV/M ABOVE 960 MHz 54.0 dBuV/M TEST DATA: Emission Frequency MHz Meter Reading dBuv Ant. Polarity Coax Loss dB Correction Factor dB Field Strength dBuv/m Margin dB 27.00 32.8 V 0.60 10.25 43.65 36.35 54.00 5.5 V 0.90 7.75 14.15 25.85 SAMPLE CALCULATION: FSdBuV/m = MR(dBuV) + ACFdB. TEST PROCEDURE: The procedure used was ANSI STANDARD C63.4-1992. The spectrum was scanned from 30 MHz to 1000 MHz. When an emission was found, the table was rotated to produce the maximum signal strength. The antenna was placed in both the horizontal and vertical planes and the worse case emissions were reported. The UUT was tested in 3 orthogonal planes. TEST RESULTS: THE UNIT DOES MEET THE FCC REQUIREMENTS. PERFORMED BY: STUART LOPATA DATE: JULY 24, 2001 APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD. FCC ID: J7IER372 REPORT #: y/yick/772H1/772H1RPT.doc PAGE #: Page 4 of 5 APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7IER372 NAME OF TEST: Occupied Bandwidth RULES PART NO.: 15.227 REQUIREMENTS: The field strength of any emissions appearing outside the 26.96-27.28 MHz band shall not exceed the general radiated emission limits in (15.209). THE GRAPH ON THE NEXT PAGE REPRESENTS THE WORSE CASE OCCUPPIED BANDWIDTH EMISSIONS FOR THIS DEVICE. METHOD OF MEASUREMENT: A small sample of the transmitter output was fed into the spectrum analyzer and the attached plot was taken. The vertical scale is set to -10 dBm per division. The horizontal scale is set to 5 kHz per division. TEST RESULTS: The unit DOES meet the FCC requirements.…

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