O44J1WAM4ROne Way Car Alarm Transmitter

O44J1WAM4R BlockDiagram(B1(BLOCK1)~B9(BLOCK9)) ANTENNA B4.Micro-Controller(HT48R05A) B6.Rf-Output Power enable/disable B5.Realtime clock B1.Buttons B2.+DC3.0VX2 Battery B3. B7. B8. Amplify & Filter B9. Filter

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Internal Photos

O44J1WAM4R Circuit Descriptions. Block1 : The Buttons of this product. When Being pressed this remote starts to work. Block2 : The Battery supply the power of 6volts to the circuits Block3 : This is the LED display Block4 : This is the micro-controller U1(Micro-controller) reads the button and make the radio transition circuits’ work. Block5 : This is the real time circuit R14, C14 supply the real time clock to the U1. Block6 : This is the radio power control circuit by U1. U1 make radio frequency circuits(B7.B8) enable by Block6. Block7. : This is the basic oscillation circuit to radiate the radio frequency. (433.920MHz by SAW1) And By switching(between 0v and 3.5V) at R3,R5 the frequency modulation is done. Block8. : The basic frequency 433.920MHz of Block8 will be amplified at this by Q1. Block9. : Besides 433.920MHz will be removed by filter(L1,C1,C2,L5,L2,C3).

KTL Korea Testing Laboratory Page 1 of 14 TEST REPORT This test report only responds to the tested sample and shall not be reproduced except in full without written approval of the Korea Testing Laboratory. Tested and reported by Reviewed by Jeong-Min Kim, Senior Engineer Hee-Soo Kim , Telecommunication Team Manager KOREA TESTING LABORATORY FG101-01-02-00 222-13, Guro-Dong Guro-Gu Seoul Korea 152-053 http://www.ktl.re.kr Ref. Report No. 03-341-007 Name and address of the applicant Youngshin Electronic Co., Ltd. 4FL., Hirun Town Bldg. , 536-3, Unhaeng-Dong, Sihung, Kyungki-Do, 429-060 Korea Standard / Test regulation FCC Part 15, Subpart C Test result Pass Incoming date : March 3, 2003 Test item(s) ; Security/Remote Control Transmitter (Onw Way Car Alarm System / Remote) Model/type ref. ; 1WAM4R Manufacturer ; Youngshin Electronic Co., Ltd. Additional information ; -Required Authorization : Certification -FCC ID. : O44J1WAM4R Test date : March 17, 2003 Issue date : March 27, 2003 Ref. Report No. 03 - 341 – 007 Page 2 of 14 Korea Testing Laboratory Telecommunication Team 222-13, Guro3-dong, Guro-gu, Seoul Korea 152-848 TABLE OF CONTENTS I. GENERAL INFORMATION 3 1. Grantee’s Name and Mailing Address 2. Manufacturer's Name and Mailing Address 3. Equipment Descriptions 4. Rules and Regulations 5. Measuring Procedure 6. Place of Measurement 7. Date of Measurement . GENERAL REQUIREMENTS OF THE EUT 4 1. Labeling Requirement (Section 15.19) 2. Information to User (Sections 15.21) 3. Special Accessories (Section 15.27) 4. Compliant Conditions (Section 15.231) . RADIATED EMISSION MEASUREMENT (Section 15.231) 6 1. Test Procedure 2. Photograph of the test configuration 3. Sample Calculation 4. Measurement Data 5. Reference Data . OCCUPIED BANDWIDTH MEASUREMENT (Section 15.231) 10 . TEST EQUIPMENTS USED FOR MEASUREMENT 11 Ref. Report No. 03 - 341 – 007 Page 3 of 14 Korea Testing Laboratory Telecommunication Team 222-13, Guro3-dong, Guro-gu, Seoul Korea 152-848 . GENERAL INFORMATION 1. Grantee’s Name and : Youngshin Electronics Co., Ltd. Mailing Address 4FL., Hirun Town Bldg., 536-3, Unhaeng-Dong, Sihung,, Kyungki-Do, 429-060 Korea 2. Manufacturer's Name and : Youngshin Electronics Co., Ltd. Mailing Address 4FL., Hirun Town Bldg., 536-3, Unhaeng-Dong, Sihung,, Kyungki-Do, 429-060 Korea 3. Equipment Descriptions 3.1 Operating Frequency : 433.92 MHz 3.2 Type of Emission : Pulse Code Signal 3.3 Power Supply : DC 3 V(Battery) 4. Rules and Regulations : FCC Part 15, Subpart C 5. Measuring Procedure : ANSI C63.4-2001 6. Place of Measurement : Absorber-lined Room (KTL) 7. Date of Measurement 7.1 Conducted Emission : Not Applicable 7.2 Radiated Emission : March 17, 2003 Ref. Report No. 03 - 341 – 007 Page 4 of 14 Korea Testing Laboratory Telecommunication Team 222-13, Guro3-dong, Guro-gu, Seoul Korea 152-848 . GENERAL REQUIREMENTS OF THE EUT 1. Labeling Requirement (Section 15.19) 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 interface, and (2) this device must accept any interference received, including interference that may cause undesired operation. 1.1 Location of Label : User’s Guide Manual 1.2 How Applied : Printed 2. Information to User (Section 15.21) The following or similar statements were provided in the manual for user instruction. Please refer page 1 of the attached manual for details. CAUTION : Any changes or modifications in construction of this device which are not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 3. Special Accessories (Section 15.27) 3.1 Were the special Accessories provided? [ ] yes, [ x ] no 3.2 If yes, details for the special accessories are as follows : 3.3 If yes, were the appropriate instructions provided on the first page of the text concerned with the installation of the device? [ ] yes, [ ] no 3.4 Are these accessories provided of the type which can be readily obtained from multiple retail outlets ? [ ] yes, [ ] no And therefore does the manual specify what additional components or accessories are required to used in order to comply with the Rules? [ ] yes, [ ] no Ref. Report No. 03 - 341 – 007 Page 5 of 14 Korea Testing Laboratory Telecommunication Team 222-13, Guro3-dong, Guro-gu, Seoul Korea 152-848 4. Compliant Conditions (Section 15.231) 4.1 Was the EUT used for continuous transmissions, such as voice or video, and data transmission ? [ ] yes, [ x ] no 4.2 Was the EUT manually operated ? [ x ] yes, [ ] no If yes, did the EUT employ a switch that would automatically deactivate the transmitter within not more than 5 seconds of being released ? [ x ] yes, [ ] no 4.3 Was the EUT automatically activated ? [ ] yes, [ x ] no If yes, did the EUT cease transmission within 5 seconds after deactivation ? [ ] yes, [ ] no 4.4 Was the EUT used for periodic transmissions at regular predetermined intervals ? [ ] yes, [ x ] no Ref. Report No. 03 - 341 – 007 Page 6 of 14 Korea Testing Laboratory Telecommunication Team 222-13, Guro3-dong, Guro-gu, Seoul Korea 152-848 . RADIATED EMISSION MEASUREMENT (Section 15.231) 1. Test Procedure 1.1 Preliminary Testing for Reference Preliminary testing was performed in a KTL absorber-lined room to determine the emission characteristics of the EUT. The EUT was placed on the wooden table which has dimensions of 0.8 meters in height, 1 meter in length and 1.5 meters in width. Receiving antenna (Biconical antenna : 30 to 300 MHz, Log-periodic antenna : 200 to 1000 MHz or Horn Antenna : 1 to 18 GHz) was placed at the distance of 1 meter from the EUT. An attempt was made to maximize the emission level with the various configurations of the EUT. Emission levels from the EUT with various configurations were examined on a spectrum analyzer connected with a RF amplifier and graphed by a plotter. 1.2 Final Radiated Emission Test at an Absorber-Lined Room The final measurement of radiat…

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Ref. Report No. 03 - 341 – 007 Page 8 of 14 Korea Testing Laboratory Telecommunication Team 222-13, Guro3-dong, Guro-gu, Seoul Korea 152-848 2. Photograph of the test configuration 3. Sample Calculation The measured field strength was determined by averaging one complete pulse train including blanking interval because the pulse repetition time of the EUT(=59.0ms) does not exceeds 0.1 seconds (15.35(c)). See graphs of page 12 . With the resolution bandwidth set at 100 kHz, the EUT produces a pulse spectrum on the spectrum analyzer because the bandwidth of the analyzer is greater than or equal to the PRF (= 556 Hz). Therefore, as mentioned in HP Application Note 150-2 (page 11), the pulse desensitization( p ) equals zero and the display amplitude is essentially a peak level. .