TEST REPORT

FCC ID: BY33104-49TS

Test Report

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FCCID_549817

THRUlab & Engineering. RM302,BOKJO,29-15 , CHONGPA3-DONG YONGSAN-GU, SEOUL, KOREA 81221095059F81221095056 email thrukang@kornet.net Test Report Product Name: 49.82-49.90 MHz Wireless R/C Toy - RX FCC ID: BY33104-49TS Applicant: SCIENTIFIC TOYS, LTD. Rm. 1108, 11/F., Block B New Mandarin Plaza 14 Science Museum Road TST, Kowloon Hong Kong Date Receipt: May/18/2005 Date Tested: May/19/2005 APPLICANT: SCIENTIFIC TOYS, LTD FCC ID: BY33104-49TS REPORT :THRU-505028 COVER SHEET

THRUlab & Engineering. RM302,BOKJO,29-15 , CHONGPA3-DONG YONGSAN-GU, SEOUL, KOREA 81221095059F81221095056 email thrukang@kornet.net TABLE OF CONTENTS LIST APPLICANT: SCIENTIFIC TOYS, LTD. FCC ID: BY33104-49TS TEST REPORT CONTAINING: PAGE 1...............TEST EQUIPMENT LIST PAGE 2...............TEST PROCEDURES PAGE 3...............RADIATION INTERFERENCE TEST DATA 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 10...........CIRCUIT DESCRIPTION EXHIBIT 11...........TEST SET UP PHOTO APPLICANT: SCIENTIFIC TOYS, LTD FCC ID: BY33104-49TS REPORT :THRU-505028 TABLE OF CONTENTS

THRUlab & Engineering. RM302,BOKJO,29-15 , CHONGPA3-DONG YONGSAN-GU, SEOUL, KOREA 81221095059F81221095056 email thrukang@kornet.net APPLICANT: SCIENTIFIC TOYS, LTD. FCC ID: BY33104-49TS TEST EQUIPMENT LIST DEVICE MODEL MFGR SERNO DUE.CAL EMI Test ESVS 10 Rohde & Schwarz 830489/001 2006.04.23. Receiver Spectrum 8566B Hewlett Packard 2311A02394 2006.04.23 Analyzer Spectrum Display 85662A Hewlett Packard 2542A12429 2006.04.23. Quasi-Peak 85650A Hewlett Packard 2521A00887 2006.04.23. Adapter RF Preselector 85685A Hewlett Packard 2648A00504 2006.04.23 Pre-Amplifier 8449B Hewlett Packard 3008A00375 2006.04.23. Pre-Amplifier 8447F Hewlett Packard 3113A05367 2006.04.23. Spectrum Monitor EZM Rohde & Schwarz 862304/007 2006.04.23. Bico-Antenna 94455-1 Eaton 977 2007.04.01. Log-Periodic 3146 EMCO 2051 2007.04.01. Antenna Dipole Antenna TDA25/1/2 Electro Metrics 176/200/200 2007.04.01. Horn Antenna SAS-571 A.H Systems 414 2007.04.01. Spectrum R3261C Advantest 71720189 2006.04.23 Analyzer LISN KNW-242 Kyoritsu 8-923-2 2007.04.25. 8012-50-R- LISN Solar 8379121 2007.04.25.. 24 Loop Ant 6507 EMCO 1435 2005.10.06. Signal Generator SMS Rohde & Schwarz 872165/100 2006.04.23. Modulation 8901B Hewlett Packard 3438A05094 2006.04.23. Analyzer Frequency CMC251 Tektronic CMC-251TW52489 2006.04.23. Counter APPLICANT: SCIENTIFIC TOYS, LTD FCC ID: BY33104-49TS REPORT :THRU-505028

THRUlab & Engineering. RM302,BOKJO,29-15 , CHONGPA3-DONG YONGSAN-GU, SEOUL, KOREA 81221095059F81221095056 email thrukang@kornet.net TEST PROCEDURE GENERAL: This report shall NOT be reproduced except in full without the written approval of ThruLab & Engineering. RADIATION INTERFERENCE: The test procedure used was ANSI STANDARD C63.4-1992 using a HEWLETT PACKARD spectrum analyzer with a preselector. 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 23ºC with a humidity of 38%. FORMULA OF CONVERSION FACTORS: The Field Strength at 3m was established by adding the meter reading of the spectrum analyzer (which is set to read in units of dBuV) to the antenna correction factor supplied 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 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. ANSI STANDARD C63.4-1992 12.1.1.1 SUPERREGENERATIVE RECEIVER: A signal Generator was set to the unit under test operating frequency. An un- Modulated continuous wave (CW) signal was radiated at the super regenerative receiver operating frequency to cohere the characteristic broadband emissions from the receiver. 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.Not Applicable, battery operated. APPLICANT: SCIENTIFIC TOYS, LTD FCC ID: BY33104-49TS REPORT :THRU-505028

THRUlab & Engineering. RM302,BOKJO,29-15 , CHONGPA3-DONG YONGSAN-GU, SEOUL, KOREA 81221095059F81221095056 email thrukang@kornet.net APPLICANT: SCIENTIFIC TOYS, LTD. FCC ID: BY33104-49TS NAME OF TEST: RADIATION INTERFERENCE RULES PART NO.: 15.109 REQUIREMENTS: 30 to 88 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 1000MHz and the measurements indicate that the unit DOES meet the FCC requirements. TEST DATA: Emission Meter Correction Cable Field Ant. Margin Limit No Frequency Reading Factor Loss Strength Polaritry (dBuv) (dBuv/m) (MHz) dBuV/m dB dB (dBuv/m) 1 30.70 15.4 V 13.1 0.7 29.1 -10.9 40.0 2 54.57 6.6 H 9.3 1.1 17.0 -23.0 40.0 3 59.19 3.5 V 7.7 1.1 12.3 -27.7 40.0 4 66.96 8.6 H 6.1 1.2 15.8 -24.2 40.0 5 85.93 4.9 V 9.5 1.5 15.8 -24.2 40.0 6 128.90 3.2 H 12.5 1.9 17.6 -25.9 43.5 7 144.52 7.9 V 15.8 2.1 25.8 -17.7 43.5 8 151.42 15.9 H 16.8 2.1 34.8 -8.7 43.5 9 256.92 3.8 V 12.7 3.1 19.6 -26.4 46.0 10 310.21 9.3 H 15.8 3.5 28.6 -17.4 46.0 11 339.52 3.8 V 15.8 3.7 23.3 -22.7 46.0 12 437.75 2.5 H 16.1 4.5 23.1 -22.9 46.0 13 550.26 3.3 H 18.2 5.2 26.8 -19.2 46.0 14 652.35 2.7 V 20.3 5.9 28.8 -17.2 46.0 SAMPLE CALCULATION: FSdBuV/m = MR (dBuV) + ACFdB. 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, and an appropriate antenna – see the test equipment list. The bandwidth of spectrum analyzer was 100 kHz with an appropriate sweep speed. 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. PERFORMED BY: S.W Ahn DATE:May/19/05 APPLICANT: SCIENTIFIC TOYS, LTD FCC ID: BY33104-49TS REPORT :THRU-505028


Document Created: 2005-06-07 18:08:36
Document Modified: 2005-06-07 18:08:36
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