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KOBGR08BReceiver

Lear Corporation
Receiver - FCC ID KOBGR08B - Lear Corporation
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Application Details

Equipment Class
CYY - Communications Receiver used w/Pt 15 Transmitter
Date of Grant
Feb 28, 2007
Application Purpose
Original Equipment
Date of Application
Feb 26, 2007
Equipment Note
Receiver
Frequency Range
315.00000000 - 315.00000000
Company
Lear Corporation
Country
United States

Documents & Files

Select a file to view

Users Manual

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Attestation Statements

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Block Diagram

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Cover Letter(s)

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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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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.

Users Manual

Re: Certification for Lear Receiver Model(s): 5E0070117, 5E0070217 FCC ID: KOBGR08B IC: 3521A-R08B USER'S MANUAL INFORMATION (PRELIMINARY) The User's Manual is in preparation. The following material will be contained in the manual: FCC ID: KOBGR08B IC: 3521A-R08B This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada. 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. WARNING: Changes or modifications not expressively approved by the party responsible for compliance could void the user's authority to operate the equipment. The term “IC:” before the radio certification number only signifies that Industry Canada technical specifications were met.

Attestation Statements

Re: Certification for Lear Receiver Model(s): 5E0070117, 5E0070217 FCC ID: KOBGR08B IC: 3521A-R08B POWER OF ATTORNEY A letter granting Valdis V. Liepa the Power of Attorney is on file and can be provided when so requested. Re: Certification for Lear Receiver Model(s): 5E0070117, 5E0070217 FCC ID: KOBGR08B IC: 3521A-R08B REQUEST FOR CONFIDENTIALITY Pursuant to 47 CRF 0.459, Lear requests that a part of the subject application be held confidential. This comprises Exhibits (5) Schematics (10) Parts List Lear has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. If there are any questions regarding this request, please contact me at the above address or call 734-483-4211, fax 734-647-2106 or e-mail [email protected]. Sincerely, Valdis V. Liepa Research Scientist University of Michigan February 22, 2007 Re: Certification for Lear Receiver Model(s): 5E0070117, 5E0070217 FCC ID: KOBGR08B IC: 3521A-R08B STATEMENT OF MODIFICATIONS There were no modifications made to the DUT by this test laboratory. (Also see Section 3.1 of the attached Test Report). _____________________ Valdis V. Liepa Research Scientist Re: Certification for Lear Receiver Model(s): 5E0070117, 5E0070217 FCC ID: KOBGR08B IC: 3521A-R08B GENERAL PRODUCT INFORMATION The device, for which certification is pursued, has been designed by: Lear Corporation 5200 Auto Club Drive Dearborn, MI 48126 Chadi Shaya Tel: 248-447-1077 Fax: 248-447-1683 It will be manufactured by: Lear Corporation 5100 W. Waters Ave. Tampa, Florida 33634 Chadi Shaya Tel: 248-447-1077 Fax: 248-447-1683 Canadian Contact: John J. Jackson Daimler-Chrysler Canada- ARDC 3939 Rhodes Drive Windsor, ON. N8W 5B5 Tel: (519) 973 – 2870 [email protected] GM_C++_Lowcost_RFA_FCC_IC_Required_Info.doc 1/12/07 Variants Lear P/N Description GM P/N 5E0070117 Receiver Module (internal ant) 25804470 5E0070217 Receiver Module (external ant) 25804469

Block Diagram

GM_C++_Lowcost_RFA_FCC_IC_Required_Info.doc 1/12/07 I/O Block Diagram of Receiver Module 315MHz RF Receiver Block Diagram . oscillator circuit 1 is at 9.5094 MHz and oscillator circuit 2 is at 8.00 MHz.

Cover Letter(s)

February 22, 2007 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 RE: Certification Application FCC ID: KOBGR08B IC: 3521A-R08B Model(s): 5E0070117, 5E0070217 Please find enclosed application materials for certification of Lear 5E0070117, 5E0070217 Receiver. Note: 1) Portions of this submittal are filed confidential. 2) A list of the modifications made is provided in Attestations. If there are any questions regarding the application or testing performed, please contact me at the above address or call 734-483-4211, fax 734-647-2106, or e-mail [email protected]. Sincerely, Valdis V. Liepa Research Scientist

Cover Letter(s)

February 22, 2007 Federal Communications Commission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 Re: Certification for Lear Receiver Model(s): 5E0070117, 5E0070217 FCC ID: KOBGR08B IC: 3521A-R08B Please find enclosed application materials for certification of Lear 5E0070117, 5E0070217 Receiver. We tested it and found it to comply with FCC Part 15. If there are any questions regarding the application or testing performed, please contact me at the above address or call 734-483-4211, fax 734-647-2106, or e-mail [email protected]. Sincerely, Valdis V. Liepa Research Scientist February 22, 2007 Certification and Engineering Bureau Industry Canada 3701 Carling Avenue, Bldg. 94 Ottawa, Ontario K2H 8S2 Re: Certification for Lear Receiver Model(s): 5E0070117, 5E0070217 FCC ID: KOBGR08B IC: 3521A-R08B Please find enclosed application materials for certification of Lear 5E0070117, 5E0070217 Receiver. We tested the device and found it to comply with RSS- GEN/102/210. The product is identified by: IC: 3521A-R08B If there are any questions, suggestions, etc., regarding the application or testing performed, please contact me at the above address or call 734-483-4211, fax 734-647- 2106; e-mail: [email protected]. Sincerely, Valdis V. Liepa Research Scientist

ID Label/Location Info

GM_C++_Lowcost_RFA_FCC_IC_Required_Info.doc 1/12/07 1. ID Label The FCC ID and IC ID are on a label which is located on the top of the module housing. The statements of compliance are molded into the top side of the module housing. The label information shown below will be molded into the top side on the plastic housing of the receiver module: 2. ID Label Drawing / Location An ID label will be placed below the compliance statement (shown above). The label has the OEM and Module Manufacturer information. The module part number label is located below the FCC ID and IC ID. The statements of compliance are molded into the top side of the module housing. FCC ID: KOBGR08B IC: 3521A-R08B GM P/N: 25804469 (external antenna) 25804470 (internal antenna) Receiver Model # 5E0070217 (external antenna) 5E0070117 (internal antenna) This device complies with Part 15 of the FCC Rules and with RSS-210 of the Industry Canada. 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.

Operational Description

GM_C++_Lowcost_RFA_FCC_IC_Required_Info.doc 1/12/07 7a. Module Description of Operation The product for which certification is pursued will be manufactured for General Motors Corporation by Lear Corporation for automotive applications. This 315 MHz Super Heterodyne receiver module is mounted in an automobile and works in conjunction with a hand held transmitter and wheel mounted TPM (Tire Pressure Monitoring) transmitters. . The receiver is permanently mounted in the vehicle and is powered by the vehicle battery. This receiver performs the following functions: Remote Engine Start/Engine Stop Lock/unlock Trunk Panic/alarm TPM Message Reception The module is designed to receive 315MHz RF signals which are ASK modulated. The module’s RF Circuit receives an RF message and demodulates the RF message into a digital message that is then sent to the microcontroller. The microcontroller will decrypt the message and will send a digital message to the bus communication circuitry; the bus communication circuitry will then send the message at the proper voltage levels over the communication bus to other devices. The power regulation circuitry supplies a 5V regulated voltage to the rest of the circuits on the module. There are 2 oscillator circuits in the design; oscillator circuit 1 is at 9.5094 MHz and oscillator circuit 2 is at 8.00 MHz. 7b. RF Receiver Description of Operation The RFA module’s RF receiver consists of an integrated low noise amplifier coupled to an integrated low power superheterodyne receiver. The low noise amplifier and superheterodyne receiver are tuned to receive amplitude-shift- keyed (ASK) data in the 315MHz frequency range. The receiver IC contains a low noise amplifier, double balanced mixer, fully integrated VCO, crystal oscillator, limiter with RSSI generation, data filter, data comparator, and peak detector. The signal at the receiver IC input is amplified by an internal LNA which has a voltage gain of 16 dB. A double balanced mixer then down-converts the 315MHz signal to a 10.7MHz intermediate frequency (IF) by low side injection at the mixer with a division ratio of 32. A 9.504 MHz crystal oscillator frequency is used for the IF generation; the local oscillator (LO) frequency of the receiver is 304.3 MHz. The receiver has a series of AC-coupled limiting amplifiers which produce a gain of 65dB centered near the IF frequency with Received Signal Strength Indication (RSSI). The RSSI circuit demodulates the IF data by producing a DC output proportional to the log of the IF input signal. The demodulated data is then filtered and fed into a data slicer. The data slicer is a fast comparator with a bandwidth of 100 kHz. It compares the analog input data with a self adjusting reference level generated by an RC term. The output of the data slicer, which is the receiver data out, is a digital signal (CMOS-like levels).

Test Report

University of Michigan Radiation Laboratory FCC Part 15, IC RSS-210/Gen - Test Report No. 415031-351 Page 1 of 12 The University of Michigan Radiation Laboratory 3228 EECS Building Ann Arbor, MI 48109-2122 Tel: (734) 764-0500 Measured Radio Frequency Emissions From TRW Receiver Model(s): 5E0070217 (ext. ant.) 5E0070117 (int. ant.) Report No. 415031-351 February 22, 2007 Copyright © 2007 For: TRW Inc. 24175 Research Drive Farmington Hills, MI 48335-2642 Contact: David Kapolka Tel: 248.478.7210 ext 4858 Fax: 248.478.7241 PO: Verbal Tests supervised by: Measurements made by: Valdis V. Liepa Report approved by: _____________________ Valdis V. Liepa Test Report Prepared by: Joseph D. Brunett Research Scientist Summary Tests for compliance with FCC Regulations Part 15, Subpart B, and Industry Canada RSS-210/GEN, were performed on TRW model 5E0070217 (ext. ant.), 5E0070117 (int. ant.). This device is subject to the Rules and Regulations as a Receiver. As a Digital Device it is exempt, but such measurements were made to assess the receiver's overall emissions. In testing completed on January 31, 2007, the device tested in the worst case met the allowed Class B specifications for radiated emissions by 7.7 dB (see p. 6). The conducted emissions tests do not apply, since the device is powered from a 12 VDC system. University of Michigan Radiation Laboratory FCC Part 15, IC RSS-210/Gen - Test Report No. 415031-351 Page 2 of 12 1. Introduction TRW model 5E0070217 (ext. ant.), 5E0070117 (int. ant.) was tested for compliance with FCC Regulations, Part 15, adopted under Docket 87-389, April 18, 1989 as subsequently amended, and with Industry Canada RSS-210, Issue 6 and RSS-Gen, Issue 1, September, 2005. The tests were performed at the University of Michigan Radiation Laboratory Willow Run Test Range following the procedures described in ANSI C63.4-2003 "Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz". The Site description and attenuation characteristics of the Open Site facility are on file with FCC Laboratory, Columbia, Maryland (FCC Reg. No: 91050) and with Industry Canada, Ottawa, ON (File Ref. No: IC 2057). 2. Test Procedure and Equipment Used The pertinent test equipment commonly used in our facility for measurements is listed in Table 2.1 below. The middle column identifies the specific equipment used in these tests. Table 2.1 Test Equipment. Test Instrument Eqpt. Used Manufacturer/Model Spectrum Analyzer (0.1-1500 MHz) Hewlett-Packard, 182T/8558B Spectrum Analyzer (9kHz-22GHz) X Hewlett-Packard 8593A SN: 3107A01358 Spectrum Analyzer (9kHz-26GHz) X Hewlett-Packard 8593E, SN: 3412A01131 Spectrum Analyzer (9kHz-26GHz) Hewlett-Packard 8563E, SN: 3310A01174 Spectrum Analyzer (9kHz-40GHz) Hewlett-Packard 8564E, SN: 3745A01031 Power Meter Hewlett-Packard, 432A Power Meter Anritsu, ML4803A/MP Harmonic Mixer (26-40 GHz) Hewlett-Packard 11970A, SN: 3003A08327 Harmonic Mixer (40-60 GHz) Hewlett-Packard 11970U, SN: 2332A00500 Harmonic Mixer (75-110 GHz) Hewlett-Packard 11970W, SN: 2521A00179 Harmonic Mixer (140-220 GHz) Pacific Millimeter Prod., GMA, SN: 26 S-Band Std. Gain Horn S/A, Model SGH-2.6 C-Band Std. Gain Horn University of Michigan, NRL design XN-Band Std. Gain Horn University of Michigan, NRL design X-Band Std. Gain Horn S/A, Model 12-8.2 X-band horn (8.2- 12.4 GHz) Narda 640 X-band horn (8.2- 12.4 GHz) Scientific Atlanta , 12-8.2, SN: 730 K-band horn (18-26.5 GHz) FXR, Inc., K638KF Ka-band horn (26.5-40 GHz) FXR, Inc., U638A U-band horn (40-60 GHz) Custom Microwave, HO19 W-band horn(75-110 GHz) Custom Microwave, HO10 G-band horn (140-220 GHz) Custom Microwave, HO5R Bicone Antenna (30-250 MHz) X University of Michigan, RLBC-1 Bicone Antenna (200-1000 MHz) X University of Michigan, RLBC-2 Dipole Antenna Set (30-1000 MHz) X University of Michigan, RLDP-1,-2,-3 Dipole Antenna Set (30-1000 MHz) EMCO 2131C, SN: 992 Active Rod Antenna (30 Hz-50 MHz) EMCO 3301B, SN: 3223 Active Loop Antenna (30 Hz-50 MHz) EMCO 6502, SN:2855 Ridge-horn Antenna (300-5000 MHz) X University of Michigan Amplifier (5-1000 MHz) X Avantak, A11-1, A25-1S Amplifier (5-4500 MHz) X Avantak Amplifier (4.5-13 GHz) Avantek, AFT-12665 Amplifier (6-16 GHz) Trek Amplifier (16-26 GHz) Avantek LISN Box University of Michigan Signal Generator X Hewlett-Packard 8657B University of Michigan Radiation Laboratory FCC Part 15, IC RSS-210/Gen - Test Report No. 415031-351 Page 3 of 12 3. Configuration and Identification of Device Under Test 3.1 Design and Identification of the Device The DUT was designed by TRW Inc., 24175 Research Drive, Farmington Hills, MI 48335-2642. It is identified as: TRW Inc. Receiver Model(s): 5E0070217 (ext. ant.), 5E0070117 (int. ant.) FCC ID: KOBGR08B IC: 3521A-R08B 3.2 Models There are two models of this device. Model 5E0070217 is populated with an externa receive antenna jack, while model 5E0070117 has an internal receive antenna mounted on the PCB. The signal at the receiver IC input is amplified, then down-converted to a 10.7MHz intermediate frequency (IF). A 9.504 MHz crystal oscillator frequency is used for the IF generation; the local oscillator (LO) frequency of the receiver is 304.3 MHz. 3.1 Modifications Made There were no modifications made to the DUT by this laboratory. 4. Emission Limits The DUT tested falls under Part 15, Subpart B, "Unintentional Radiators". The pertinent test frequencies, with corresponding emission limits, are given in Tables 4.1 and 4.2 below. 4.1 Radiated Emission Limits Table 4.1. Radiated Emission Limits (Ref: FCC 15.33, 15.35, and 15.109; IC RSS-210, 2.6 Table 2). Freq. (MHz) E lim (3m) μV/m E lim (3m) dB(μV/m) 30-88 100 40.0 88-216 150 μV/m 43.5 216-960 200 μV/m 46.0 960-2000 500 μV/m 54.0 Note: Quasi-Peak readings apply to 1000 MHz (120 kHz BW) Average readings apply above 1000 MHz (1 MHz BW) 4.2 Power Line Conducted Emission Limits Table 4.3 Conducted Emission Limits (FCC:15.107 (CISPR); IC: RS…

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

Contact Information

Applicant

Kristof von Czarnowski(RF Engineer)
[email protected]248-421-0714Fax: 0

Technical Contact

University of Michigan/EECSValdis Leipa
[email protected]734-483-4211

1301 Beal Avenue · Ann Arbor, Michigan · United States

Test Firm

University of MichiganValdis Liepa
[email protected]734-647-1792Fax: 734-647-2106

Technical Specifications

#Rule PartsFrequency RangePower Output
115B315 MHz - 315 MHz-
Confidentiality
Long Term

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