LIEWT833-17Remote Control Toy Transmitter

INSTRUCTION TO THE USER This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. The user is cautioned that changes and modifications made to the equipment without the approval of manufacturer could void the user's authority to operate this equipment.

Block Diagram

External View

FCC ID: LIE WT833-17 This device complies with part 15 of the FCC Rules. Operating is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Figure 2.1 FCC ID Label Figure 2.2 Location of the Label

Control Board Component Side

APPLICANT: WELL-TECH TOYS CO., LTD. FCC ID LIE WT833-17 Operational Circuit Description When the user presses the control keys. Then control signal is amplified by Q2 and modulated to a high frequency signal, which generated from oscillator composed by Q1 and X1. Modulated signal is then coupled through the filter composed by C4, C8 and LI to antenna. Power supply and Ground One 9V battery is the only power supply for the transmitter. No external power is needed.

Figure 4.1 System Schematics

ADVANCED COMPLIANCE LABORATORY 6 Ran do lph W ay Hillsborough, NJ 08876 Tel: (732) 560-9010 Fax: (732) 560-9173 ELECTROMAGNETIC EMISSION COMPLIANCE REPORT of RADIO CONTROL TRANSMITTER MODEL: WT833-17 FCC ID: LIEWT833-17 August 13, 2001 This report concerns (check one): Original grant x Class II change Equipment type: LOW POWER TRANSMITTER Deferred grant requested per 47 CF 0.457(d)(1)(ii)? yes no x If yes, defer until: (date) Company agrees to notify the Commission by (date) of the intended date of announcement of the product so that the grant can be issued on that date. Transition Rules Request per 15.37? yes no x If no, assumed Part 15, Subpart B for unintentional radiators - the new 47 CFR [10-1-90 Edition] provision. Report prepared for: WELL-TECH TOYS CO., LTD. Report prepared by: Advanced Compliance Lab Report number: 0048-010806-01 The test result in this report IS supported and covered by the NVLAP accreditation FCC ID: LIEWT833-17 ——————————————————————————————————————————————— Advanced Compliance Lab 6 Randolph Way, Hillsborough, NJ 08844 Tel: (732) 560-9010 Fax: (732) 560-9173 2 Table of Contents Report Cover Page .........................................................................................................1 Table of Contents ...........................................................................................................2 Figures.............................................................................................................................3 1. GENERAL INFORMATION ...................................................................................4 1.1 Verification of Compliance .........................................................................4 1.2 Equipment Modifications............................................................................5 1.3 Product Information ....................................................................................6 1.4 Test Methodology.........................................................................................6 1.5 Test Facility ..................................................................................................6 1.6 Test Equipment ............................................................................................6 1.7 Statement of the Document Use ..................................................................7 2. PRODUCT LABELING............................................................................................8 3. SYSTEM TEST CONFIGURATION ......................................................................9 3.1 Justification ..................................................................................................9 3.2 Special Accessories.......................................................................................9 3.3 Configuration of Tested System .................................................................9 4. SYSTEM SCHEMATICS .........................................................................................12 5. RADIATED EMISSION DATA ...............................................................................13 5.1 Field Strength Calculation ..........................................................................13 5.2 Test Methods and Conditions .....................................................................13 5.3 Test Data .......................................................................................................13 6. PHOTOS OF TESTED EUT ....................................................................................16 FCC ID: LIEWT833-17 ——————————————————————————————————————————————— Advanced Compliance Lab 6 Randolph Way, Hillsborough, NJ 08844 Tel: (732) 560-9010 Fax: (732) 560-9173 3 Figures Figure 2.1 FCC ID Label ...............................................................................................8 Figure 2.2 Location of Label on Back of the EUT ......................................................8 Figure 3.1 Radiated Test Setup, Position 1..................................................................10 Figure 3.2 Radiated Test Setup, Position 2..................................................................10 Figure 3.3 Radiated Test Setup, Position 3..................................................................11 Figure 4.1 EUT Schematics ...........................................................................................12 Figure 6.1 Front View ....................................................................................................18 Figure 6.2 Rear View .....................................................................................................19 Figure 6.3 Inside View, Cover Opened ........................................................................20 Figure 6.4 Component Side ...........................................................................................21 Figure 6.5 Foil Side ........................................................................................................22 FCC ID: LIEWT833-17 ——————————————————————————————————————————————— Advanced Compliance Lab 6 Randolph Way, Hillsborough, NJ 08844 Tel: (732) 560-9010 Fax: (732) 560-9173 4 1. GENERAL INFORMATION 1.1 Verification of Compliance EUT: RADIO CONTROL TRANSMITTER Model: WT833-17 Applicant: WELL-TECH TOYS CO., LTD. RM 1004, CHINACHEM GOLDEN PLAZA 77 MODY ROAD, TSIMSHATSUI EAST KOWLOON, HONGKONG Test Type: FCC Part 15C CERTIFICATION Result: PASS Tested by: ADVANCED COMPLIANCE LAB Test Date: August 13, 2001 Report Number: 0048-010806-01 The above equipment was tested by Advanced Compliance Laboratory for compliance with the requirement set forth in the FCC rules and regulations Part 15, subpart C. This said equipment in the configuration described in the report, shows the maximum emission levels emanating from equipment are within the compliance requirements. The estimated uncertainty of the test result is given as following. The me…

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FCC ID: LIEWT833-17 ——————————————————————————————————————————————— Advanced Compliance Lab 6 Randolph Way, Hillsborough, NJ 08844 Tel: (732) 560-9010 Fax: (732) 560-9173 10 Figure 3.1 Radiated Test Setup, Position 1 Figure 3.2 Radiated Test Setup, Position 2 FCC ID: LIEWT833-17 ——————————————————————————————————————————————— Advanced Compliance Lab 6 Randolph Way, Hillsborough, NJ 08844 Tel: (732) 560-9010 Fax: (732) 560-9173 11 Figure 3.3 Radiated Test Setup, Position 3