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PVQDSCAR004RF Keyless Entry System

drakesystem co.,ltd

Application Details

Equipment Class
DSC - Part 15 Security/Remote Control Transmitter
Date of Grant
May 26, 2004
Application Purpose
Original Equipment
Date of Application
May 26, 2004
Equipment Note
RF Keyless Entry System
Frequency Range
433.92000000 - 433.92000000
Company
drakesystem co.,ltd
Country
South Korea

Documents & Files

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Users Manual

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Block Diagram

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External Photos

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ID Label/Location Info

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Internal Photos

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Operational Description

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Schematics

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Test Report

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Test Setup Photos

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Block Diagram

Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Appendix 5. Block Diagram Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R

External Photos

Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Appendix 3. External Photographs of EUT Front of EUT Rear of EUT Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R

ID Label/Location Info

Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Appendix 2. FCC ID Label and location Product Label Sample with FCC ID Label information Following is a sample copy of the label that will be placed on the rear cabinet of the product. The FCC identifier is marked in the product label. The warning statement and Information to the User are described in the user manual. This device complies with part 15 of the FCC rules. Operation is subject to the following conditions: (1) This devices may not cause harmful interference, and (2) this device must accept any interference received including interference that may cause undesired operation. Model No : DTH-9000R FCC ID : PVQDSCAR004 Drake Systems Co., Ltd. Made in Korea Label Location The label shown above shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase.(Labeling requirements per 2.925) F C C L A B L E Drake Systems Co., Ltd. RF Keyless Entry System DTH-9101R

Internal Photos

Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Appendix 4. Internal Photographs of EUT Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R

Operational Description

Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Appendix 8. Description of RF 3. OPERATING DESCRIPTION The circuit description of remote controller. The remote controller consists of 3 parts. The first is RF stage which transmits and receives the RF signal and it is located in the RF PCB Assy. The second is CPU and its peripherals and it is located in the DIGITAL PCB Assy. The third is rechargeable battery and recharging circuit which are located in the DIGITAL PCB Assy. 3-1. RF PCB Assy The RF PCB Assy is connected with the DIGITAL PCB Assy with 3 connectors, CON501 & CON502 & CON503. The operating power and control signal feeds from DIGITAL PCB Assy through connectors and the receiving data sends to theDIGITAL PCB Assy through connectors. 3-1-1. The TX circuit The remote controller transmits and receives data using FSK format. The transmit circuit consists of oscillation circuit, multiplier circuit, amplifier and switching circuit. Oscillation circuit is composed of transistor ( Q507), crystal ( X502 / 48.21333MHz ) and several passive components ( C552, C553, C543, C544, C547, CH501, CH502, L508, R527, R525 ). The multiplier circuit is composed of transistor( Q505 ) and several passive components ( C528, C531, C535, C536, C537, C538, L506, L504, R506, R519 ). The amplifier is composed of transistor ( Q503 ) and several passive components ( C529, C505, C571, L505, R505, R517 ). Antenna matching circuit and switching circuit are composed of several passive components such as C526, C511, C512, C503, C522, L502, L501, R504, D503, D501, D502, R501 ). The power is +3V which is supplied from Digital board. 3-1-2. The RX circuit The receiving circuit consists of front-end amplifier, mixer, 1st local oscillator, IF amplifier, demodulator and control circuit of power supply. 3-1-3. Front-end amplifier The small signal ( RF signal ) which is picked up by antenna is supplied to the front-end amplifier ( Q502 ) through capacitor ( C523 ) and then, amplified to 15dB. The amplified RF signal is filtered by SAW Filter ( CF503 ) and then, supplied to the mixer. 3-1-4. 1st mixer The RF signal and signal from 1st local oscillator are mixed by mixer ( Q506 ) and then, 1st IF signal is generated whose frequency is 10.7MHz. 1st IF signal is filtered by ceramic filter ( CF502 ) which increases channel selectivity and then it is supplied to the IF amplifier. 3-1-5. Demodulator The demodulator is in U501. It has a 2nd LO of 10.245MHz, 2nd mixer, limiter, and discriminator in it. The signal of 10.7MHz and 10.245MHz are mixed in the 2nd mixer, and , 2nd mixer generates signal of 455KHz. The signal of 455KHz is then supplied to the discriminator which demodulates data signal from 2nd IF signal. The data signal is filtered by external filter and then supplied to the Pin46 of microprocessor. Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 3-1-5. 1st local oscillator Q509 oscillates 47.02444MHz signal using crystal and then it is multiplied to the signal of 141.07333MHz. The signal of 141.07333MHz is filtered by L512 and C559 and then supplied to the base of Q508. And then, it is multiplied again by Q508, L511 and C555 whose frequency is 423.22MHz. The 1st local signal is then supplied to the base of 1st mixer ( Q506 ). 3-2. DIGATAL PCB Assy 3-2-1. Control circuit of power supply When the CPU outputs 3V at the Pin7, the regulator in the U501( +1V regulator ) is operated, which supplies power to the receiving circuit. 3-2-2. Microprocessor The power from rechargeable battery is fed to the regulator and regulated to the +3V, which is supplied to all of the circuit including CPU, control circuit and RF circuit. Microprocessor ( U901 ) has LCD driver in it and it uses 2 crystals such as 4MHz ( X902 ) and 32768KHz ( U901 ). Microprocessor is usually in sleep mode and wakes up every 1.5 seconds to reduce current consumption. It can be woken by stoke of key button. Also, it controls EL Backlight and Buzzer to be operated. It also has external EEPOM to keep the options which users set previously. 3-2-3. Power Supply circuit The power is supplied from rechargeable Lion battery ( size 2450 ). The power is regulated by +3V regulator and it is supplied to the CPU, Digital board and RF board. The battery is charged by wall charger or cigarette charger whose output is 12VDC. The charging circuit has 4.2V regulator to prevent from over-charging of battery. Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R

Schematics

Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Appendix 7. Circuit Diagram Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R

Test Report

BWS TECH Inc. 1 of 16 294-9 Jungdae-Dong, Kwanggu-Si,Kyunggi-Do, 464-800, Korea Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R Electromagnetic Emission FCC MEASUREMENT REPORT FCC PART 15 SUBPART C FOR LOW POEWR TRANSMITTER PRODUCT : RF Keyless Entry System MODEL/TYPE NO : DTH-9000R FCC ID : PVQDSCAR004 TRADE NAME : DRAKESYSTEMS APPLICANT : Drake Systems Co.,Ltd. Acetechno 804, Yangpyung-dong,Youngdeungpo-Ku, Seoul, 150-103, Korea Attn. : Myung hwan , Jung / General Manager FCC CLASSIFICATION : DSC- Part 15 RF Control/Security device Transmitter FCC RULE PART(S) : FCC Part 15 Subpart C Section 15.231 FCC PROCEDURE : Certification DATES OF TEST : May 6, 2004 DATES OF ISSUE : May 12, 2004 TEST REPORT No. : BWS-04-RF-0013 TEST LAB. : BWS Tech., Inc. (Registration No. : 553281) This RF Keyless entry system has been tested in accordance with the measurement procedures specified in ANSI C63.4-2000 at the BWS TECH/EMC Test Laboratory and has been shown to be complied with the electromagnetic radiated emission limits specified in FCC Rule Part15 Subpart C Section15.231 I attest to the accuracy of data. All measurement herein was performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. The results of testing in this report apply to the product/system, which was tested only. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. Kang, Bong Chul Chief of Laboratory Division BWS TECH Inc. BWS TECH Inc. www.bws.co.kr 294-9, Jungdae-Dong, Kwangju-Si, Kyunggi-Do, 464-080, Korea TEL: +82 31 762 0124 FAX: +82 31 762 0126 BWS TECH Inc. www.bws.co.kr 294-9, Jungdae-Dong, Kwangju-Si, Kyunggi-Do, 464-080, Korea TEL: +82 31 762 0124 FAX: +82 31 762 0126 BWS TECH Inc. 2 of 16 294-9 Jungdae-Dong, Kwanggu-Si,Kyunggi-Do, 464-800, Korea Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R TABLE OF CONTENTS Pages 1. General Information 3 2. Description of Test Facility 4 3. Product Information 5 4. Description of Tests 6~7 5. Test Condition 8~9 6. Test Results 10~16 7. Sample Calculation and Other Information 18 8. Test Equipment List 19 Appendix 1. Test Setup Photos Appendix 2. FCC ID Label and location Appendix 3. External Photos of EUT Appendix 4. Internal Photos of EUT Appendix 5. Block Diagram Appendix 6. Schematics Appendix 7. Operational Description Appendix 8. User Manual BWS TECH Inc. 3 of 16 294-9 Jungdae-Dong, Kwanggu-Si,Kyunggi-Do, 464-800, Korea Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R FCC TEST REPORT Scope – Measurement and determination of electromagnetic emission(EME) of radio frequency devices including intentional radiators and/or unintentional radiators for compliance with the technical rules and regulations of the U.S Federal Communications Commission(FCC) 1. General Information Applicant Manufacturer z EUT Type : RF Keyless Entry System z Model Number : DTH-9000R z FCC Identifier : PVQDSCAR004 z S/N : Prototype z Freq. Range : 433.92 MHz z Channel : 1 ch z Modulation Method : FSK z FCC Rule Part(s) : Part 15 Subpart C Section 15.231 z Test Procedure : ANSI C63.4-2000 z Dates of Tests : May 06, 2004 z Place of Tests : BWS TECH Inc. EMC Testing Lab (FCC Registration Number : 553281) 294-9, Jungdae-Dong, Kwangju-Si, Kyunggi-Do, 464-080, Korea TEL: +82 31 762 0124 FAX: +82 31 762 0126 z Test Report No. zBWS-04-RF-0013 Company Name : Drake Systems Co.,Ltd. Company Address : Acetechno 804, Yangpyung-dong,Youngdeungpo-Ku, Seoul, 150-103, Korea Phone/Fax : Phone : +82-2-2634-4700 Fax : +82-2-2634-4800 Company Name : Drake Systems Co.,Ltd. Company Address : Acetechno 804, Yangpyung-dong,Youngdeungpo-Ku, Seoul, 150-103, Korea Phone/Fax : Phone : +82-2-2634-4700 Fax : +82-2-2634-4800 BWS TECH Inc. 4 of 16 294-9 Jungdae-Dong, Kwanggu-Si,Kyunggi-Do, 464-800, Korea Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R 2. Description of Test Facility The measurement for radiated emission test were practiced at the open area test site of BWS TECH Inc. Measurement for conducted emission test were practiced at the semi EMC Anechoic Chamber test site of BWS TECH Inc. facility located at 294-9, Jungdae-Dong, Kwangju-Si, Kyunggi-Do, Korea. The site is constructed in conformance with the requirements of the ANSI C63.4-2000 and CISPR Publication 16. The BWS TECH measurement facility has been filed to the Commission with the FCC for 3 and 10-meter site configurations. Detailed description of test facility was found to be in compliance with the requirements of Section 2.948 FCC Rules according to the ANSI C63.4-1992 and registered to the Federal Communications Commission (Registration Number : 553281 ). The measurement procedure described in American National Standard for Method of Measurement of Radio-Noise Emission from Low-Voltage Electrical and Electronic Equipment in the Range of 9kHz to 40GHz (ANSI C.63.4-2000) was used in determining radiated emissions from the Drake Systems Co., Ltd.. RF keyless entry system Model : DTH-9000R. BWS TECH Inc. 5 of 16 294-9 Jungdae-Dong, Kwanggu-Si,Kyunggi-Do, 464-800, Korea Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R 3. Product Information 3.1 Equipment Description The Equipment Under Test (EUT) is RF transmitter by the Drake Systems Co., Ltd. RF keyless entry system model: DTH-9000R (FCC ID: PVQDSCAR004). This product is transmitter that it controls locking and unlocking the door of a vehicle and alarm the horn by w…

Text truncated - open the document above for the full version.

Test Setup Photos

Report No: BWS-04-RF-0013 FCC ID : PVQDSCAR004 Date of Test : May 6, 2004 Appendix 1. Test Setup Photographs Radiated Emission Test Setup Drake Systems Co., Ltd. RF Keyless Entry System DTH-9000R

Contact Information

Applicant

Hongtack Kim(director)
[email protected]82-2-2634-4700Fax: 82-2-2634-4800

Test Firm

BWS TECH INCCheol-Ho Lee
[email protected]82-31-333-5997Fax: 82-31-333-0017

Technical Specifications

#Rule PartsFrequency RangePower Output
115.231433.92 MHz - 433.92 MHz-

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