J7I-YSMINI49.82-49.90MHz WALKIE TALKIE _TX

Yick Shun Electronic Toys Manufactory Ltd

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Application Details

Equipment Class: DXX - Part 15 Low Power Communication Device Transmitter
Date of Grant: Jul 05, 2006
Application Purpose: Original Equipment
Date of Application: Jul 05, 2006
Equipment Note: 49.82-49.90MHz WALKIE TALKIE _TX
Frequency Range: 49.86000000 - 49.86000000
Company: Yick Shun Electronic Toys Manufactory Ltd
Country: Hong Kong

Documents & Files

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Document Text

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ID Label/Location Info

FCC ID Label Sample for FCCID: J7I-YSMINI_ FCCID: J7I-YSMINI

Operational Description

FCCID: J7I-YSMINI YS 2279 Mini Walkie Talkie Circuit Description Reception: The high frequency signal was received from the antenna then combined with Q1 via T1 and process the amplifying and output the voice signal. The signal was amplified via Q2 and then send to voice amplifier which combined by Q3, Q4, Q5, final output to the speaker thru C10. Transmission: Once push the Transmit Button, the function of the speaker will be changed to microphone, the voice / dialogue received from the speaker thru Q2, Q3, Q4,Q5 will be amplified and output to Q1. The signal vibrator that formed by Q1, JT1, T1 will transmit the frequency thru L1 Antenna, and the signal will transmit to the air.

Schematics

1 2 34 ABCD 4 3 2 1 D CBA Yick Shun Electronic Toys Manufactory Ltd. MODEL:TITLE:DRAWN:CHECK: REV:SHEET NO:DATE:APPROVED: ANT1 SPK132 Ω /0.25W BAT1 12V T1 C C15pF Q1 S9018C C C256pF C C3 82pF R1 10 Ω R2 5.6K Ω 1 2 3 SW1A R3 10K Ω C C410pF C C5 5000pF 4 5 6 SW1B R4330K Ω R55.6K Ω R7 1K Ω + - C6100uF C C7 0.1uF C C80.1uF C C9 0.047uF 7 8 9 SW1C R81K Ω R910 Ω R10560K Ω R11 5.6KΩ + - C10 100uF C C11 0.047uF Q2 9014C Q4 8550D Q58050D L1 2.7uH R12560 Ω R65.6K Ω Q3 8550D SW2Power C C135100pF + - C14 100uF 10 11 12 SW1D JT1 49.860MHz R13 22K Ω C C 300pF R1433 Ω R1533 Ω C C1268pF YS-2279 Circuit Diagram Yang A/0 1 of 1 2005-11-25 Jiang Chen

Test Report

TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7I-YSMINI REPORT #: y\yick\1292HT6\1292HT6TestReport.doc COVER SHEET Test Report Product Name: 49 MHZ WALKIE TALKIE – TX PORTION FCC ID: J7I-YSMINI Applicant: YICK SHUN ELECT. TOYS MFG. LTD UNIT 4, 15/F, CORNELL CENTRE 50 WING TAI ROAD CHAI WAN, HONG KONG HONG KONG Date Receipt: 6/19/2006 Date Tested: 6/29/2006 TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7I-YSMINI REPORT #: y\yick\1292HT6\1292HT6TestReport.doc TABLE OF CONTENTS TABLE OF CONTENTS LIST APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7I-YSMINI TEST REPORT CONTAINING: PAGE 1............TEST EQUIPMENT LIST PAGE 2............TEST PROCEDURE PAGE 3............RADIATION INTERFERENCE TEST DATA PAGE 4............OCCUPIED BANDWIDTH PAGE 5............OCCUPIED BANDWIDTH PLOT PAGE 6............TEST SET UP PHOTO EXHIBITS INCLUDING: BLOCK DIAGRAM SCHEMATIC INSTRUCTION MANUAL LABEL SAMPLE LABEL LOCATION EXTERNAL PHOTOGRAPHS INTERNAL PHOTOGRAPHS CIRCUIT DESCRIPTION TEST SET UP PHOTOGRAPH TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7I-YSMINI REPORT #: y\yick\1292HT6\1292HT6TestReport.doc Page 1 of 6 Equipment List Device Manufacturer Model Serial Number Cal/Char Date Due Date 3/10-Meter OATS TEI N/A N/A Listed 3/27/04 3/26/07 3-Meter OATS TEI N/A N/A Listed 1/11/06 1/10/09 Antenna: Biconnical Eaton 94455-1 1057 CAL 12/12/05 12/12/07 Antenna: Biconnical Eaton 94455-1 1096 CAL 8/17/04 8/17/06 Antenna: Biconnical Electro-Metrics BIA-25 1171 CAL 4/29/05 4/29/07 Analyzer Blue Tower Quasi- Peak Adapter HP 85650A 2811A01279 CAL 4/13/05 4/13/07 Analyzer Blue Tower RF Preselector HP 85685A 2926A00983 CAL 9/5/05 9/5/07 Analyzer Blue Tower Spectrum Analyzer HP 8568B 2928A04729 2848A18049 CAL 4/13/05 4/13/07 LISN Electro-Metrics ANS-25/2 2604 CAL 8/27/04 8/27/06 LISN Electro-Metrics EM-7820 2682 CAL 4/28/05 4/28/07 Antenna: Log- Periodic Eaton 96005 1243 CAL 12/14/05 12/14/07 TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7I-YSMINI REPORT #: y\yick\1292HT6\1292HT6TestReport.doc Page 2 of 6 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 C63.4-2003 using a HEWLETT PACKARD spectrum analyzer with a pre-selector. 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 100 kHz and the video bandwidth was 300 kHz. The ambient temperature of the UUT was 80ºC with a humidity of 76%. 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 Pre- selector 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 C63.4-2003 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. TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7I-YSMINI REPORT #: y\yick\1292HT6\1292HT6TestReport.doc Page 3 of 6 APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID: J7I-YSMINI NAME OF TEST: RADIATION INTERFERENCE RULES PART NO.: 15.235 REQUIREMENTS: CARRIER FREQUENCY WILL NOT EXCEEDS 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 Frequency MHz Meter Reading dBuV Ant. Polarity Coax Loss dB Correction Factor dB Field Strength dBuV/m Margin dB 49.86 23.2 H 0.97 11.63 35.80 44.20 49.86 29.4 V 0.97 10.71 41.08 38.92 99.71 16.0 H 1.40 10.89 28.29 15.21 99.71 18.4 V 1.40 11.42 31.22 12.28 149.55 9.8 H 1.75 16.16 27.71 15.79 149.58 9.1 V 1.75 16.86 27.71 15.79 199.50 8.6 H 2.10 17.12 27.82 15.68 199.89 7.8 V 2.10 17.86 27.76 15.74 249.28 5.4 H 2.35 12.37 20.12 25.88 249.30 4.8 V 2.35 12.46 19.61 26.39 298.82 3.7 H 2.59 14.05 20.34 25.66 299.10 5.4 V 2.60 14.29 22.29 23.71 348.55 4.9 H 2.84 14.87 22.61 23.39 348.55 4.9 V 2.84 14.44 22.18 23.82 SAMPLE CALCULATION: FSdBuV/m = MR (dBuV) + ACFdB. TEST PROCEDURE: The procedure used was ANSI STANDARD C63.4-2003. 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. PERFORMED BY: NAM NYGUEN DATE: 6/29/2006 TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: YICK SHUN ELECT. TOYS MFG. LTD FCC ID…

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