RTW8119Remote Control Transmitter

1 TRANSMITTER MODEL: SD-T2DP-C USER MANUAL SPECIFICATION 1. ModelSD-T2DP-C 2. Frequency27.145MHz 3. Battery9.0V 6AA alkaline batteries OPERATION DIRECTION 1. Open the battery cover on the bottom of transmitter, install six AA alkaline batteries according to the directive, ensure batteries are installed correctly and then close the battery cover. 2. Pull the antenna completely, turn on the power switch on the left of transmitter, the directive light will be on. If the directive light is off, please check the installation of batteries, and power switch is “ON” or “OFF”. 3. CH1 channel control the rotate speed value of the two motors in the left and right. Move the joy stick to the right, the rotate speed of right motor is exceeded left motor. Move joy stick to the left, the rotate speed of left motor is exceeded right motor. Loosen joy stick, let it move to the original position, the rotate speed of the two motors will be kept consistently. 4. CH2 channel control speedup and speed-down of the two motors at the same time. Press the button, two motors will be speedup; Loosen the button, two motors will be speed-down at the same time. CAUTION 1. It must be pulled the antenna completely when use transmitter. Prohibit to turn on the power after drawing back the antenna for fear damage the electric circuit. 2. When the red light is on and green light is flickered, it shows battery capacity is not enough, please replace battery as soon as possible for avoiding to effect 2 the operation of transmitter. 3. To avoid interference each other, please don’t operate the transmitter near the other object which with same frequency. FCC Statement: “Modifications not authorized by the manufacturer may void users authority to operate this device.” NOTE: 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. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help.

TRANSMITTER BLOCK DIAGRAM RECEIVER BLOCK DIAGRAM FILTERAMPLIFIERSURGE ALARM CODING LOW VOLTAGE CHECKING HIGH FREQUENCY AMPLIFIER DEMODULATION SURGE LOW AMPLIFIER DECODER POWER SUPPLY SPEED CONTROL RUDDER 1 RUDDER 2 M

PHOTOGRAPH OF THE PRODUCT FRONT VIEW OF THE PRODUCT REAR VIEW OF THE PRODUCT

FCC ID: RTW8119 MADE IN CHINA This device complies with part 15 of the FCC Rules. Operation 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.

PHOTOGRAPH OF THE PRODUCT INNER CIRCUIT TOP VIEW INNER CIRCUIT BOTTOM VIEW

1 Transmitter Circuit Description Model: SD-T2DP-C The 27MHz crystal oscillator drives the base of Q2 the high frequency amplifier. The modulated frequency provided by IC (PIC 46R47). The output of Q1 has the matching network consisting of L1, L2, L3, R1, C0, C1, C2, C3 and C4 that limit the harmonic content and effect the proper coupling of the antenna to the output stage. Antenna, Ground and Power Source The antenna consists of a 74cm long telescoping chrome over brass tubing. There is no external ground connection. The ground is only that of the printed circuit board. Electric current is supplied by a 1X9.0V primary battery.

Date: 2004-06-08 TEST REPORT Page 1 of 19 No.: HM150719 This report shall not be reproduced unless with prior written approval from the Hong Kong Standards and Testing Centre. Applicant: SIRDAR METAL & PLASTIC WORKS Description of Samples: Model name: Transmitter Model no.: SD-T2DP-C Brand name: SDM FCC ID: RTW8119 Date Samples Received: 2004-01-19 Date Tested: 2004-01-30 to 2004-05-19 Investigation Requested: FCC Part 15 Subpart C Conclusions: The submitted product COMPLIED with the requirements of Federal Communications Commission [FCC] Rules and Regulations Part 15. The tests were performed in accordance with the standards described above and on Section 2.2 in this Test Report. Remarks: ---- K C Lee, EMC for Chief Executive Date: 2004-06-08 TEST REPORT Page 2 of 19 No.: HM150719 CONTENT: Cover Page 1 of 19 Content Page 2-3 of 19 1.0 General Details 1.1 Test Laboratory Page 4 of 19 1.2 Applicant Details Page 4 of 19 Applicant HKSTC Code Number for Applicant Manufacturer 1.3 Equipment Under Test [EUT] Page 5 of 19 Description of EUT operation 1.4 Date of Order Page 5 of 19 1.5 Submitted Samples Page 5 of 19 1.6 Test Duration Page 5 of 19 1.7 Country of Origin Page 5 of 19 1.8 Additional Information of EUT Page 6 of 19 2.0 Technical Details 2.1 Investigations Requested Page 7 of 19 2.2 Test Standards and Results Summary Page 7 of 19 3.0 Test Results 3.1 Emission Page 8-12 of 19 3.2 Bandwidth Measurement Page 13-14 of 19 Date: 2004-06-08 TEST REPORT Page 3 of 19 No.: HM150719 Appendix A List of Measurement Equipment Page 15 of 19 Appendix B Duty Cycle Correction During 100 msec Page 16-17 of 19 Appendix C Photographs Page 18-19 of 19 Date: 2004-06-08 TEST REPORT Page 4 of 19 No.: HM150719 1.0 General Details 1.1 Test Laboratory The Hong Kong Standards and Testing Centre Ltd. EMC Laboratory 10 Dai Wang Street, Taipo Industrial Estate New Territories, Hong Kong Telephone: 852 2666 1888 Fax: 852 2664 4353 1.2 Applicant Details Applicant SIRDAR METAL & PLASTIC WORKS Bai Shi, San Xiang Town, Zhong Shan City, Guangdong, China HKSTC Code Number for Applicant SIM009 Manufacturer SIRDAR METAL & PLASTIC WORKS Bai Shi, San Xiang Town, Zhong Shan City, Guangdong, China Date: 2004-06-08 TEST REPORT Page 5 of 19 No.: HM150719 1.3 Equipment Under Test [EUT] Description of Sample Model Name: Transmitter Manufacturer: SIRDAR METAL & PLASTIC WORKS Brand Name: SDM Model Number: SD-T2DP-C Input Voltage: 9Vd.c (“AA” size battery x6) 1.3.1 Description of EUT Operation The Equipment Under Test (EUT) is a SIRDAR METAL & PLASTIC WORKS, Transmitter. The transmitter is a 2 button transmitter. The EUT continues to transmit while button is being pressed, Modulation by IC. and type is pulse modulation. 1.4 Date of Order 2004-01-19 1.5 Submitted Sample(s): 2 Samples 1.6 Test Duration 2004-01-30 to 2004-05-19 1.7 Country of Origin China Date: 2004-06-08 TEST REPORT Page 6 of 19 No.: HM150719 1.8 Additional Information of EUT Submitted Not Available User Manual Part List Circuit Diagram Printed Circuit Board [PCB] Layout Block diagram FCC ID Label Date: 2004-06-08 TEST REPORT Page 7 of 19 No.: HM150719 2.0 Technical Details 2.1 Investigations Requested Perform ElectroMagnetic Interference measurement in accordance with FCC 47CFR [Codes of Federal Regulations] Part 15 and ANSI C63.4:2003 for FCC Certification. 2.2 Test Standards and Results Summary Tables EMISSION Results Summary Test Condition Test Requirement Test Method Class / Test Result Severity Pass Failed N/A Field Strength of Fundamental Emissions & Spurious Emissions FCC 47CFR 15.227 ANSI C63.4:2003 N/A Radiated Emissions, 30MHz to 1GHz FCC 47CFR 15.209 ANSI C63.4:2003 Class B Conducted Emissions on AC, 0.15MHz to 30MHz FCC 47CFR 15.207 ANSI C63.4:2003 Class B Note: N/A - Not Applicable Date: 2004-06-08 TEST REPORT Page 8 of 19 No.: HM150719 3.0 Test Results 3.1 Emission 3.1.1 Radiated Emissions (30 – 1000MHz) Test Requirement: FCC 47CFR 15.227 Test Method: ANSI C63.4:2003 Test Date: 2004-05-19 Mode of Operation: On mode Test Method: The sample was placed 0.8m above the ground plane on the OATS *. Measurements in both horizontal and vertical polarities were performed. During the test, each emission was maximized by: having the EUT continuously working, investigated all operating modes, rotated about all 3 axis (X, Y & Z) and considered typical configuration to obtain worst position, manipulating interconnecting cables, rotating turntable, varying antenna height from 1m to 4m in both horizontal and vertical polarizations. The emissions worst-case are shown in Test Results of the following pages. *: OATS [Open Area Test Site] located at HKSTC with a metal ground plane filed with the FCC pursuant to section 2.948 of the FCC rules, with Registration Number: 90657. Test Setup: EUT Pre-Amplifier Distance = 3m Receiver Turn Table Computer Ground Plane Date: 2004-06-08 TEST REPORT Page 9 of 19 No.: HM150719 Limits for Field Strength of Fundamental Emissions [FCC 47CFR 15.227]: Frequency Range of Fundamental Field Strength of Fundamental Emission [Peak] Field Strength of Fundamental Emission [Average] [MHz] [μV/m] [μV/m] 26.96-27.28 100,000 10,000 Results: FrequencyCorrectionLimit @3mE-Field FactorPolarity MHzdB μ V/m μ V/m 27.1540.3021.962.21,288.2100,000Vertical Field Strength of Fundamental Emissions Peak Value Measured Level @3m Field Strength μV/mdBμV/m Field Strength dBμV/m FrequencyAdjusted byCorrectionLimit @3mE-Field Duty CycleFactorPolarity MHzdBdB μ V/m μ V/m 27.1539.8-0.521.961.71,216.210,000Vertical μV/mdBμV/m Field Strength dBμV/m Field Strength of Fundamental Emissions Average Measured Level @3m Field Strength According to FCC 47CFR15.35, the limit on the radio frequency emissions as measured using instrumentation with a peak detector function, corresponding to 20dB above the maximum permitted average limit for the frequency being investigated unless a different peak emission limit is otherwise specified in the rules. Remarks: Correction Factor included An…

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TEST SET UP PHOTOGRAPH OF THE PRODUCT MEASUREMENT OF RADIATED EMISSION TEST SET UP