NUY-YT-12120RC Toy Transmitter

TABLE OF CONTENTS APPLICANT: YUEN TAT ELECTRONICS TOYS MANUFACTORY LTD. FCC ID: NUY-YT-12120 TEST REPORT CONTAINING: PAGE 1......TEST PROCEDURE PAGE 2......TEST PROCEDURE CONTD. 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 4............PARTS LIST EXHIBIT 5............SAMPLE OF FCC ID LABEL EXHIBIT 6............LOCATION OF FCC ID LABEL EXHIBIT 7............EXTERNAL PHOTO - FRONT SIDE EXHIBIT 8............EXTERNAL PHOTO - BACK SIDE EXHIBIT 9............INTERNAL PHOTO - COMPONENT SIDE EXHIBIT 10...........INTERNAL PHOTO - COPPER SIDE EXHIBIT 11...........OCCUPIED BANDWIDTH PLOT - CW REPORT #: F:\CUS\Y\YUEN\YTE183H8.RPT PAGE: TABLE OF CONTENTS LIST APPLICANT: YUEN TAT ELECTRONICS TOYS MANUFACTORY LTD. FCC ID: NUY-YT-12120 TEST EQUIPMENT LIST 1. Spectrum Analyzer: Hewlett Packard 8566B - Opt 462, w/ preselec tor 85685A, & Quasi-Peak Adapter HP 8565OA, & HP 8449B - OPT H02 Cal. 10/02/97 2. Signal Generator, Hewlett Packard 8640B, cal. 6/26/98 3. Eaton Biconnical Antenna Model 94455-1 20-200 MHz Serial No. 0997 Cal. 9/17/97 4. Electro-Metric Dipole Kit, 20-1000 MHz, Model TDA 25 cal. 5/15/97 5. Electro-Metric Horn 1-18 GHz, Model RGA-180, Cal. 9/24/97 6. Electro-Metric Antennas Model TDS-25-1, TDS-25-2, 9/3/97 7. Electro-Metric Line Impedance Stabilization Network Model No. EM-7821, Serial No. 101; 100KHz-30MHz 50uH. 9/30/97 8. Electro-Metric Line Impedance Stabilization Network Model No. EM-7820, Serial No. 2682; 10KHz-30MHz 50uH. 9/30/97 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 85oF with a humidity of 83%. 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: YUEN TAT ELECTRONICS TOYS MANUFACTORY LTD. FCC ID: NUY-YT-12120 REPORT #: F:\CUS\Y\YUEN\YTE183H8.RPT PAGE #: 1 TEST PROCEDURES CONTINUED APPLICANT: YUEN TAT ELECTRONICS TOYS MANUFACTORY LTD. FCC ID: NUY-YT-12120 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 switch S1 provides DC voltage to the unit. Transistor Q1 is the crystal controlled oscillator. When the voltage is applied the transistors - Q2 & Q3 turn Q1 on so that the CW signal is sent to the antenna via the tuned circuit L1/C4 to and the low pass filter C5/L2. This unit has no modula- tion . ANTENNA_AND_GROUND_CIRCUITRY This unit makes use of a 6" whip antenna. The antenna is induc- tively coupled. 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: YUEN TAT ELECTRONICS TOYS MANUFACTORY LTD. FCC ID: NUY-YT-12120 REPORT #: F:\CUS\Y\YUEN\YTE183H8.RPT PAGE #: 2 APPLICANT: YUEN TAT ELECTRONICS TOYS MANUFACTORY LTD. FCC ID: NUY-YT-12120 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 METER READING COAX ANTENNA FIELD FREQUENCY AT 3 METERS LOSS CORRECTION STRENGTH MARGIN ANT. MHz dBuV dB FACTOR dB dBuV/m@3m dB POL. 27.04 25.30 0.20 11.80 37.30 42.70 H 54.08 6.20 0.80 9.67 16.67 23.33 V 81.12 12.30 0.80 12.10 25.20 14.80 V 108.16 6.00 0.80 8.37 15.17 28.33 V 135.20 3.20 0.80 15.12 19.12 24.38 V 162.24 4.60 0.90 17.05 22.55 20.95 V 189.28 3.20 0.90 13.75 17.85 25.65 H 216.32 2.10 1.20 12.40 15.70 30.30 V 243.36 2.80 1.20 13.18 17.18 28.82 V 270.40 1.80 1.40 13.97 17.17 28.83 V 297.44 0.00 1.40 15.54 16.94 29.06 H 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: AUGUST 19, 1998 APPLICANT: YUEN TAT ELECTRONICS TOYS MANUFACTORY LTD. FCC ID: NUY-YT-12120 REPORT #: F:\CUS\Y\YUEN\YTE183H8.RPT PAGE #: 3 APPLICANT: YUEN TAT ELECTRONICS TOYS MANUFACTORY LTD. FCC ID: NUY-YT-12120 NAME OF TEST: Occupied Bandwidth RULES PART NO.: 15.227 REQUIREM…

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