BY3E891Low Power Transmitter

TABLE OF CONTENTS APPLICANT: SCIENTIFIC TOYS, LTD. FCC ID: BY3E891 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..........BLOCK DIAGRAM EXHIBIT 3..........SCHEMATIC EXHIBIT 4A-4B......INSTRUCTION MANUAL EXHIBIT 5..........SAMPLE OF FCC ID LABEL AND LOCATION 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 10.........INTERNAL PHOTO - COPPER SIDE CHASSIS VIEW EXHIBIT 11.........OCCUPIED BANDWIDTH PLOT - CW APPLICANT: SCIENTIFIC TOYS, LTD. FCC ID: BY3E891 REPORT #: T:\CUS\S\SCIENTIF\SCI84H0\SCI84H0.RPT PAGE: TABLE OF CONTENTS LIST APPLICANT: SCIENTIFIC TOYS, LTD. FCC ID: BY3E891 TEST EQUIPMENT LIST 1._X_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 Cal. 10/17/99 2.___Signal Generator: HP 8640B, S/N 2308A21464 Cal. 9/23/99 3.___Signal Generator: HP 8614A, S/N 2015A07428 Cal. 5/29/99 4._X_Passive Loop Antenna: EMCO Model 6512, 9KHz to 30MHz, S/N 9706-1211 Cal. 6/23/97 5.___Biconnical Antenna: Eaton Model 94455-1, S/N 1057 6._X_Log-Periodic Antenna: Electro-Metrics Model EM-6950, S/N 632 7._X_Dipole Antenna Kit: Electro-Metrics Model TDA-30/1-4, S/N 153 Cal. 11/24/99 8.___Double-Ridged Horn Antenna: Electro-Metrics Model RGA-180, 1-18 GHz, S/N 2319 Cal. 4/27/99 9.___Horn 40-60GHz: ATM Part #19-443-6R 10.___Line Impedance Stabilization Network: Electro-Metrics Model ANS-25/2, S/N 2604 Cal. 2/9/00 11.___Line Impedance Stabilization Network: Electro-Metrics Model EM-7820, S/N 2682 Cal. 12/1/99 12.___Temperature Chamber: Tenney Engineering Model TTRC, S/N 11717-7 13.___AC Voltmeter: HP Model 400FL, S/N 2213A14499 Cal. 9/21/99 14.___Digital Multimeter: Fluke Model 8012A, S/N 4810047 Cal 9/21/99 15.___Digital Multimeter: Fluke Model 77, S/N 43850817 Cal 9/21/99 16.___Oscilloscope: Tektronix Model 2230, S/N 300572 Cal 9/23/99 17.___Frequency Counter: HP Model 5385A, S/N 3242A07460 Cal 10/6/99 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 72oF with a humidity of 75%. APPLICANT: SCIENTIFIC TOYS, LTD. FCC ID: BY3E891 REPORT #: T:\CUS\S\SCIENTIF\SCI84H0\SCI84H0.RPT PAGE #: 1 APPLICANT: SCIENTIFIC TOYS, LTD. FCC ID: BY3E891 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 CIRCUIT_DESCRIPTION: The circuit is activated by the action of the paddle switches which make ground contact for the battery. This allows the proper current to be supplied to Q1 the crystal oscillator and Q2 the modulator/buffer. The modulation to base of Q2 is supplied by U1. The different modula- tion patters are generated by U1 using the different actions of the paddle switches. Pin 8 of U1 is the modulation output. C8, C9, C10 and L3 provide the output impedance match to the antenna and harmonic suppression. ANTENNA_AND_GROUND_CIRCUITRY This unit makes use of a short, antenna. The antenna is inductively 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: BY3E891 REPORT #: T:\CUS\S\SCIENTIF\SCI84H0\SCI84H0.RPT PAGE #: 2 APPLICANT: SCIENTIFIC TOYS, LTD. FCC ID: BY3E891 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. 27.10 60.70 0.20 11.77 72.67 7.33 V 54.30 22.60 0.80 9.60 33.00 7.00 V 81.40 26.60 0.80 12.13 39.53 0.47 V 108.60 8.10 0.80 8.38 17.28 26.22 V 135.70 8.90 0.80 15.31 25.01 18.49 V 190.00 9.40 0.90 13.68 23.98 19.52 V 217.20 10.70 1.20 12.42 24.32 21.68 H 244.30 11.70 1.20 13.21 26.11 19.89 H 271.50 16.30 1.40 14.00 31.70 14.30 V 298.60 15.00 1.40 15.61 32.01 13.99 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:___________________________________ DATE: MARCH 20, 2000 APPLICANT: SCIENTIFIC TOYS, LTD. FCC ID: BY3E891 REPORT #: T:\CUS\S\SCIENTIF\SCI84H0\SCI84H0.RPT PAGE #: 3 APPLICANT: SCIENTIFIC T…

Text truncated - open the document above for the full version.