L2C0005TKeyless entry handheld transmitter

USER’S MANUAL The following statement will be included in the User’s manual: (PRELIMINARY) 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.

FCC AUTHORIZATION February 9, 1999 To: FCC Authorization & Evaluation Division 7435 Oakland Mills Road Columbia, MD 21045-049 From: Curtis KellPhone: 414-768-2824 Product EngineerFax:414-768-2820 Applicant: Delphi Automotive SystemsEmail: [email protected] ____________________________________________________________________________ Dear Ladies & Gentlemen: I appoint Kenneth L. Boston and James Blaha at L.S. Compliance, Inc. to act as an agent in the preparation under Part 15 of the rules and regulations of the Federal Communications Commission. I certify that the exhibitions properly describe the device being submitted under this application and will implement any changes described in the test report. The labels described will be affixed to each item. The following statement is required by the Federal Communications Commission: By checking Yes, the applicant certifies that, in the case of an individual applicant, he or she is not subject to a denial of federal benefits, that included FCC benefits, pursuant to section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a), or, in the case of a non-individual applicant (e.g. corporation, partnership, or other unincorporated association), no party to the applicant is subject to a denial of federal benefits, that includes FCC benefits, pursuant to that section. __X__ YES ____ NO Dated this 9 th day of February, 1999 By: Curtis Kell Title: Project Engineer Phone: 414-768-2824 7929 South Howell Ave. Oak Creek, WI 53154

Delphi Block Diagram Ddddd Delphi Block Diagram

Delphi-Delco Key Fob

Delphi-Delco FCC ID Label

Delphi-Delco PCB with Battery

Delphi-Delco PCB - Key Side

Description of Operation The remote keyless entry system (RKE) is intended for commercial use in various vehicle platforms of General Motors (GM). The remote keyless entry system is comprised of two components. The Body Computer Module (BCM) and a hand-held transmitter (FOB). The RKE system gives the vehicle driver the ability to lock and unlock doors from a distance. The average RF range is 10 meters. RKE System Functionality The RKE system consists of a hand-held fob transmitter used by the vehicle driver and a receiver box located within the vehicle. The transmitter emits RF signals in response to the activation of one or more buttons. Upon activation of a fob button, a message is formed and then transmitted. A message consists of a preamble that indicates the start of a transmission, a unique transmitter ID, a function code and a sophisticated encryption field that prevents recording and subsequent playback of legitimate messages. The receiver periodically checks for the presence of a transmission. When a valid a message is received, the receiver signals the BCM to perform the requested function. The RKE functions are locking/unlocking the car doors, opening the trunk/hatch, and activating the panic alert. The BCM features a super-regenerative AM receiver. The receiver is tuned to a center frequency of 315 MHz. RF messages are received via an internal wire antenna. The software polls for a message every 100ms. If a valid RF message is not received, the receiver goes back to sleep to conserve parasitic current. The super-regenerative receiver is composed of an antenna, RF power switching transistor, front end 315 MHz tuned amplifier, super-regenerative stage, diode detector, backend amplifier, and data slice waveshaper. The backend amplifier and waveshaper are implemented using two halves of a dual LM2904 op amp package. Receiver Overview The RF receiver receives and demodulates the incoming 315 Mhz amplitude modulated (AM) RF signals. An internal antenna receives the incoming signals from the transmitter, the signals are amplified through a tuned amplifier, the superregenerative circuit demodulates the 315 Mhz signal and an audio amplifier amplifies the signal which is then sent to the RF microprocessor for data processing (decoding). The receiver has a direct inject sensitivity of approximately 2 uV. Refer to the RF receiver block diagram. The data sent to the RF microprocessor uses a rolling code algorithm for security. RF Front End Amplifier The RF amplifier is mechanized using a transistor in a common emitter configuration with a tuned LC circuit in the collector path to provide selectivity at 315 Mhz. The output of the amplifier is AC coupled to the superregenerative circuit. Superregenerative Circuit The superregenerative circuit is used to demodulate the incoming 315 Mhz signal to a baseband format. The circuit is consists of an RF oscillator operating at 315 Mhz which alternates between an oscillating and non-oscillating condition at a rate known as the quench frequency. When an RF signal (315 Mhz) is applied to the superregenerative circuit, the RF oscillator reaches an oscillating condition faster than when an RF signal is not applied, effectively increasing the quench frequency. The stronger the RF signal, the faster the RF oscillator begins operating. The output of the superregenerative circuit is essentially the variable quench frequency, nominally 600 Khz. The RF oscillator is tuned with a variable inductor which is part of a LC tank circuit. The inductor is adjusted to get maximum sensitivity at 315 Mhz. Nominal bandwidth of the superregenerative circuit id 2.5 Mhz (+/- 3dB). Peak Detect/Low Pass Filter Circuit The output of the superregenerative circuit is sent to the peak detect/low pass filter circuit to demodulate the variable frequency quench oscillation. The output of this circuit is the basedband data (nominally 2 Khz) transmitted by the FOB. Audio Amplifier The low level output of the peak detect/low pass filter circuit is amlified by the audio amplifier comparator circuit. The output of the comparator is sent to the RF uP for signal processing. RF Receiver Block Diagram Front End Amplifier Superregenerative Circuit Peak Detect/Low Pass Filter Circuit Audio Amplifier To RF microprocessor for signal processing

L. S. COMPLIANCE, Inc. FCC ID: L2C0005T LSC-DELPHI-90017pageof 27 0 COMPLIANCE TESTING OF DELCO J/Z KEYLESS ENTRY TRANSMITER - TEST REPORT 90017 Tests performed on 10 December, 1998 Prepared for: Curt Kell DELCO ELECTRONICS OAK CREEK, WI All results of this report relate only to the items that were tested. This report is not to be reproduced, except in full, without written approval of L.S.Compliance, Inc. L. S. COMPLIANCE, Inc. FCC ID: L2C0005T LSC-DELPHI-90017pageof 27 1 Table of Contents SectionDescriptionPage # Index1 Description of Measurement Facilities2 Report of Measurements 1.2Signature Page3 1.3Summary of Test Report4 1.4Introduction5 1.5Purpose5 1.6Radiated Emission Test Setup5 1.7Radiated Emission Test Procedure6 1.8Radiated Emission Test Equipment Utilized7 1.9Conducted Emission Measurements7 1.10Restricted Bands (Frequencies and Limits)8 1.11Photos taken during testing9 1.12Summary of Results and Conclusions10 1.13Test Equipment List11 Appendic es ASample Calculations:12 i.Calculation of Radiated Emissions Limits13 ii.Duty Cycle Correction Factor Calculation14 iii.Occupied Bandwidth Calculations15 BData Charts16 CGraphs18 L. S. COMPLIANCE, Inc. FCC ID: L2C0005T LSC-DELPHI-90017pageof 27 2 DESCRIPTION OF MEASUREMENT FACILITIES Site on File with the FCC ID Number: 31040/SIT 1300F2 “ The site referenced above has been found to comply with the test site criteria found in ANSI C63.4-1992 and 47CFR Section 2.948.” L. S. COMPLIANCE, Inc. FCC ID: L2C0005T LSC-DELPHI-90017pageof 27 3 SIGNATURE PAGE Tests performed by: Approved By:1 Feb 1999 Kenneth L. Boston, EMC Lab ManagerDate PE #31926 Registered Professional Engineer (State of Wisconsin) L. S. COMPLIANCE, Inc. FCC ID: L2C0005T LSC-DELPHI-90017pageof 27 4 1.3 SUMMARY OF TEST REPORT MANUFACTURER:Delco Electronics MODEL:J/Z SERIAL:preproduction prototype DESCRIPTION:KEYLESS ENTRY HANDHELD TRANSMITTER FREQUENCY RANGE:TRANSMITTER; 315 MHz The Delphi model J/Z RKE transmitter was found to “meet” the radiated emission specification of Title 47 CFR FCC, Part 15, subpart C. for an intentional radiator L. S. COMPLIANCE, Inc. FCC ID: L2C0005T LSC-DELPHI-90017pageof 27 5 1.4INTRODUCTION On December 10, 1998, a series of Radiated Emissions tests were performed on one sample model of the J/Z keyless entry transmitter, a small handheld key fob unit, which is designed to transmit a coded signal used to unlock an automobile door. These tests were performed using the test procedures outlined in ANSI C63.4-1992 for intentional radiators, and in accordance with the limits set forth in FCC Part 15.231a,b for a periodic transmitter. These tests were performed by Kenneth L. Boston, PE, of L. S. Compliance, Inc. and witnessed by Curt Kell of Delphi, Inc. 1.5PURPOSE The above mentioned tests were performed in order to determine the compliance of the J/Z RKE tag with limits contained in various provisions of Title 47 CFR, FCC Part 15, including: 15.10915.231b 15.20515.231c 15.209 All radiated emissions tests were performed to measure the emissions in the frequency bands described by the above sections, and to determine whether said emissions are below the limits established by the above sections. These tests were performed in accordance with the procedure described in the American National Standard for methods of measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz (ANSI C63.4-1992). Another document used as reference for the EMI receiver specification was the International Special Committee on Radio Interference (CISPR) number 16-1 (1993). 1.6 RADIATED EMISSIONS TEST SETUP The test sample was operated within the 3 meter Semi-Anechoic, FCC listed chamber located at L.S. Compliance in Cedarburg, WI. The sample was placed on an 80cm high wooden pedestal, which was centered on the flush-mounted 2m diameter metal turntable. The test sample was operated on its own [new] internal battery. The battery voltage at the beginning of the tests was measured to be 3.2 volts. The test sample was configured to run in a continuous transmit mode during the 15.231c and 15.231b measurements. Please refer to Section 1.11 for pictures of the test setup. L. S. COMPLIANCE, Inc. FCC ID: L2C0005T LSC-DELPHI-90017pageof 27 6 1.7RADIATED EMISSION TEST PROCEDURE The fundamental and spurious (harmonic) emissions of the transmitter were tested for compliance to Title 47 CFR, FCC Part 15.231b limits for periodic devices. For the calculations used to determine the limits applicable for each of the two test samples (at their respective operating frequencies) refer to Appendix A. These limits are expressed in decibels (dB) above 1 microvolt per meter (μV/m). The samples were tested from the lowest frequency generated by the transmitter (without going below 9 kHz) to the 10th harmonic of the fundamental frequency generated by the device. The appropriate limits were also observed when the fundamental or spurious signals were located within any of the restricted bands as described in Part 15.205a. These frequencies, and their associated limits, are referenced in Section 1.10. The samples were placed on a nonconductive (wooden) pedestal in the 3 Meter chamber and the antenna mast was placed such that the antenna was 3m from the test object. A biconical antenna or tuned dipole was used to measure emissions from 30 to 200 MHz, a log periodic or tuned dipole was used to measure emissions from 200 to 1000 MHz, and a double ridged waveguide horn was used to measure emissions above 1 GHz. The test object was programmed to operate in continuous transmit, and the resultant signals were maximized by rotating the turntable 360 degrees, and by raising and lowering the antenna between 1 and 4 meters. The test object was also given several different orientations to determine the maximum signal levels, using both horizontal and vertical antenna polarities. No significant emissions were found aside from the transmitter fundamental and seve…

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