F5J604208RR/C Toy Car Reciever

TABLE OF CONTENTS APPLICANT: Ka Wah Manufactory Limited FCC ID: F5J604208R PAGE 1.............731 FORM PAGE 2.............POWER OF ATTORNEY LETTER PAGE 3-4...........TEST PROCEDURE PAGE 5.............CIRCUIT DESCRIPTION PAGE 6.............BLOCK DIAGRAM PAGE 7.............SCHEMATIC PAGE 8-9...........PARTS LIST PAGE 10-11..........RADIATION INTERFERENCE TEST DATA PAGE 12.............SAMPLE OF FCC ID LABEL PAGE 13-13a.........INSTRUCTION MANUAL PAGE 14-17..........PHOTOGRAPHS FCC ID LABEL LOCATION ON PAGE 15 F:\CUS\K\KAWAH\KAW116H8.RPT APPLICANT: Ka Wah Manufactory Limited FCC ID: F5J604208R TEST EQUIPMENT LIST 1. Spectrum Analyzer: Hewlett Packard 8566B, with preselector HP 85685A, & Quasi-Peak Adapter HP 8565OA, & HP 8449B OPT H02 Cal. 9/30/97 2. Eaton Biconnical Antenna Model 94455-1 20-200 MHz Serial No. 0997 Cal. 9/17/97 3. Electro-Metric Dipole Kit, 20-1000 MHz, Model TDA 25 cal. 5/15/97 4. Electro-Metric Horn 1-18 GHz, Model RGA-180, Cal. 9/24/97 5. Electro-Metric Antennas Model TDS-25-1, TDS-25-2, 9/3/97 6. Electro-Metric Line Impedance Stabilization Network Model No. EM-7821, Serial No. 101; 100KHz-30MHz 50uH. 9/30/97 7. 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 76.2o with a humidity of 65%. 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 POWER LINE CONDUCTED INTERFERENCE: The procedure used was ANSI STAN- DARD C63.4-1992 using a 50uH LISN. Both lines were observed. The bandwidth of the spectrum analyzer was 10kHz with an appro- priate sweep speed. The ambient temperature of the UUT was 76.2oC with a humidity of 65%. APPLICANT: Ka Wah Manufactory Limited FCC ID: F5J604208R REPORT #: F:\CUS\K\KAWAH\KAW116H8.RPT PAGE #: 3__________ TEST PROCEDURES CONTINUED APPLICANT: Ka Wah Manufactory Limited FCC ID: F5J604208R 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. APPLICANT: Ka Wah Manufactory Limited FCC ID: F5J604208R REPORT #: F:\CUS\K\KAWAH\KAW116H8.RPT PAGE #: 4 APPLICANT: Ka Wah Manufactory Limited FCC ID: F5J604208R CIRCUIT DESCRIPTION: This unit is a receiver intended to be used for remote controlled cars. the RF portion consists of transistor Q1 which is used as a RF buffer. Transistor Q2 serves as a superregenerative detector. It then goes to a decoder - U1. The rest of the transistors are used as motor drivers. ANTENNA AND GROUND CIRCUITRY This unit uses a short whip antenna. The antenna is self con- tained and there is no provision for connecting an external antenna. No ground connection is provided. The unit relies on the ground tract of the printed circuit board. APPLICANT: Ka Wah Manufactory Limited FCC ID: F5J604208R REPORT #: F:\CUS\K\KAWAH\KAW116H8.RPT PAGE #: 5 APPLICANT: Ka Wah Manufactory Limited FCC ID: F5J604208R NAME OF TEST: RADIATION INTERFERENCE RULES PART NUMBER: 15.109 REQUIREMENTS: 30 to 80 MHz: 40.0 dBuV/M @ 3 METERS 88 to 216 MHz: 43.5 dBuV/M 216 to 960 MHz: 46.0 dBuV/M ABOVE 960 MHz: 54.0 dBuV/M TEST RESULTS: A search was made of the spectrum from 30 to 1000 MHz and the measurements indicate that the unit DOES meet the FCC requirements. TEST DATA: TUNED EMISSION METER COAX FIELD FREQ. FREQUENCY READING LOSS A.C.F. STRENGTH MARGIN MHz MHz @ 3m dBuV dB dB dBuV/m@3m dB ANT. 49.86 46.05 5.20 0.25 10.85 16.30 23.70 V 49.86 46.39 5.30 0.25 10.86 16.41 23.59 H 49.86 46.68 8.40 0.25 10.88 19.53 20.47 H 49.86 47.06 5.70 0.25 10.89 16.84 23.16 V 49.86 47.26 7.60 0.25 10.90 18.75 21.25 H 49.86 47.71 3.70 0.25 10.91 14.86 25.14 H 49.86 47.99 5.90 0.25 10.92 17.07 22.93 V 49.86 48.50 3.40 0.25 10.94 14.59 25.41 V 49.86 49.05 3.30 0.25 10.96 14.51 25.49 V 49.86 49.54 4.90 0.25 10.98 16.13 23.87 H 49.86 49.83 9.30 0.25 10.99 20.54 19.46 V 49.86 50.43 2.80 0.80 10.86 14.46 25.54 V 49.86 51.83 8.10 0.80 10.41 19.31 20.69 V 49.86 52.23 6.00 0.80 10.28 17.08 22.92 V 49.86 52.82 4.80 0.80 10.08 15.68 24.32 V 49.86 53.75 6.20 0.80 9.78 16.78 23.22 V SAMPLE CALCULATION: FSdBuV/m = MR(dBuV) + ACFdB. APPLICANT: Ka Wah Manufactory Limited FCC ID: F5J604208R REPORT #: F:\CUS\K\KAWAH\KAW116H8.RPT PAGE #: 10 APPLICANT: Ka Wah Manufactory Limited FCC ID: F5J604208R NAME OF TEST: RADIATION INTERFERENCE CONTINUED TEST PROCEDURE: ANSI STANDARD C63.4-1992 using a Hewlett Packard Model 8566B spectrum analyzer, a Hewlett Packard Model 85685A Preselector, a Hewlett Packard Model 85650A Quasi-Peak adapter, an Electro-Metric Dipole Kit, and an Eaton Model 94455-1 Biconical Antenna. The bandwi…

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