BY3E88827 MHz Remote Control TX

TABLE OF CONTENTS APPLICANT: SCIENTIFIC TOYS LTD. FCC ID: BY3E888 TEST REPORT CONTAINING: PAGE 1......TEST PROCEDURE PAGE 2......TEST PROCEDURE AND CIRCUIT DESCRIPTION PAGE 3......RADIATION INTERFERENCE TEST DATA PAGE 4......OCCUPIED BANDWIDTH TEST DATA EXHIBITS CONTAINING: EXHIBIT 1............POWER OF ATTORNEY LETTER EXHIBIT 2............LETTER CONFIRMING MODIFICATION EXHIBIT 3............BLOCK DIAGRAM EXHIBIT 4............SCHEMATIC EXHIBIT 5A-5B........PARTS LIST EXHIBIT 6A-6B........INSTRUCTION MANUAL EXHIBIT 7............SAMPLE OF FCC ID LABEL EXHIBIT 8............LOCATION OF FCC ID LABEL EXHIBIT 9............EXTERNAL PHOTO - FRONT VIEW EXHIBIT 10...........EXTERNAL PHOTO - REAR VIEW EXHIBIT 11...........INTERNAL PHOTO - COMPONENT SIDE EXHIBIT 12...........INTERNAL PHOTO - COPPER SIDE EXHIBIT 13...........OCCUPIED BANDWIDTH PLOT - CW APPLICANT: SCIENTIFIC TOYS LTD. FCC ID: BY3E888 REPORT #: F:\CUS\S\SCIENTIF\SCI170H9.RPT PAGE: TABLE OF CONTENTS LIST APPLICANT: SCIENTIFIC TOYS LTD. FCC ID: BY3E888 TEST EQUIPMENT LIST 1. Spectrum Analyzer: Hewlett Packard 8566B - Opt 462, w/ preselector 85685A, & Quasi-Peak Adapter HP 8565OA, & HP 8449B - OPT H02 Cal. 6/26/98 2. Signal Generator, Hewlett Packard 8640B, cal. 10/1/98 3. Eaton Biconnical Antenna Model 94455-1 20-200 MHz Serial No. 0997 Cal. 10/30/98 4. Electro-Metric Dipole Kit, 20-1000 MHz, Model TDA-30 10/31/98 5. Electro-Metric Horn 1-18 GHz, Model RGA-180, Cal. 10/30/98 6. Electro-Metric Antennas Model TDA-30/1-4,Cal. 10/15/98 7. Electro-Metric Line Impedance Stabilization Network Model No. EM-7821, Serial No. 101; 100KHz-30MHz 50uH. Cal.11/19/98 8. Electro-Metric Line Impedance Stabilization Network Model No. EM-7820, Serial No. 2682; 10KHz-30MHz 50uH. Cal. 11/19/98 9. Special low loss cable was used above 1 GHz 10. Tenney Temperature Chamber 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 79oC with a humidity of 70%. 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 APPLICANT: SCIENTIFIC TOYS LTD. FCC ID: BY3E888 REPORT #: F:\CUS\S\SCIENTIF\SCI170H9.RPT PAGE #: 1 TEST PROCEDURES CONTINUED APPLICANT: SCIENTIFIC TOYS LTD. FCC ID: BY3E888 ANSI STANDARD C63.4-1992 10.1.7 MEASUREMENT PROCEDURES: The unit under test was placed on a table 80 cm high and with dimensions of 1m by 1.5m. The table used for radiated measurements is capable of continuous rotation. When an emission was found, the table was rotated to produce the maximum signal strength. At this point, the antenna was raised and lowered from 1m to 4m. The antenna was placed in both the horizontal and vertical planes. The situation was similar for the conducted measurement except that the table did not rotate. The EUT was setup as described in ANSIC63.4-1992 with the EUT 40 cm from the vertical ground wall. CIRCUIT_DESCRIPTION: In the transmit mode the momentary switches S1, S2, S3, & S4 provide input to the encoder intergrated circuit U1. The output of U1 modulated the RF output stage Q2. The crystal controlled oscillator Q1 is coupled to Q2 via C10. From Q2 the signal goes to the double tuned circuit made up of L3, C5, L2, C7 & C8 which is connected to the antenna. The RF frequency is determined by the crystal Y1. 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: SCIENTIFIC TOYS LTD. FCC ID: BY3E888 REPORT #: F:\CUS\S\SCIENTIF\SCI170H9.RPT PAGE #: 2 APPLICANT: SCIENTIFIC TOYS LTD. FCC ID: BY3E888 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: PEAK EMISSION METER READING COAX ANTENNA FIELD FREQUENCY AT 3 METERS LOSS CORRECTION STRENGTH MARGIN ANT. MHz dBuV dB FACTOR dB dBuV/m@3m dB POL. 27.15 52.80 0.20 11.75 64.75 15.25 H 54.29 25.40 0.80 9.61 35.81 4.19 V 108.60 13.90 0.80 8.38 23.08 20.42 V 135.70 17.80 0.80 15.31 33.91 9.59 V 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:____S. S. SANDERS_________________ DATE: APRIL 20, 1999 APPLICANT: SCIENTIFIC TOYS LTD. FCC ID: BY3E888 REPORT #: F:\CUS\S\SCIENTIF\SCI170H9.RPT PAGE #: 3 APPLICANT: SCIENTIFIC TOYS LTD. FCC ID: BY3E888 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 …

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