CB2SAHL4 Test Report

FCC ID: CB2SAHL4

Test Report

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FCCID_602208

November 14, 2005 Technical Report to the FCC Regarding Johnson Controls Interiors, L.L.C. Homelink© III Model: CB2SAHL4 FCC ID: CB2SAHL4 11/14/2005 A report concerning approval for Johnson Controls Homelink® model CB2SAHL4. Please issue grant immediately upon review. Confidentiality applied to the following sections according to 47 CFR 0.459 and RSP-100: Circuit Block Diagrams, attachment “hl_block_diag.pdf” Theory/Description of Operation “theory_op.pdf” Schematics attachment “schematics.pdf” Measurements Made by: Measurements Observed by: Bolay Elgersma Jeremy Bos RF Test Site Technician RF Test Site Manager Johnson Controls Interiors, LLC. Johnson Controls Interiors, LLC. Report and Application Prepared by Jeremy Bos RF Test Site Manager Johnson Controls Interiors, LLC. Johnson Controls Interiors, LLC. Page 1 of 19 FCC ID: CB2SAHL4

November 14, 2005 1. General Information 1.1. Product Description: The Johnson Controls Interiors HomeLink® HL4 Universal Garage Door Opener is a low- power transceiver OEM device that is installed into an overhead area of the automobile. The installation is provided by trained technicians during the course of the manufacture of the automobile. It is powered by the 12volt system of the automobile. This Universal Garage Door Opener has the capability to 1. Learn the frequency and bit code format of the user’s existing garage door remote control devices and 2.Reproduce and transmit the frequency and bit code format to remotely operate the user’s garage door. The unit is designed for the periodic operation of a control signal, which typically activates a garage door opener receiver. The unit is supplied to the automobile manufacturer without harness. For testing purposes a typical assembly and 2-conductor cable harness were used to power to the unit. The unit is only operational when the user depresses the control button. It becomes inactive after release of the control button. The three-button HomeLink® unit replaces up to three hand-held transmitters. In addition to the typical operation of the garage door, the unit will learn the radio frequency codes of other transmitter types to activate entry door locks, estate gates, security systems, and home or office lighting. The antenna system is an integral part of the unit. It cannot be altered nor replaced by the user. Service of this system is only available from the Automobile Manufacturer’s Dealerships and Johnson Controls Interiors, LLC. 1.2. Related Grants None. 1.3. Test Methodology Radiated Emissions testing was done according to ANSI C63.4-2003. The power source for this product is a 12V automotive vehicle battery, thus conducted emissions measurements are not required. The unit is supplied to the automobile manufacturer without harness. For testing purposes a 2-conductor cable harness was used to interface to the unit. Johnson Controls Interiors, LLC. Page 2 of 19 FCC ID: CB2SAHL4

November 14, 2005 1.4. Test Facility The Open Area Test Site where these measurements were taken, is located on the grounds of Johnson Controls Automotive Interiors System’s Edgar D. Prince Technical Campus, in the city of Holland, county of Ottawa, state of Michigan, United States of America. The site is a fully enclosed 10m weather-protected OATS. All structure materials above the conducting ground-plane are non-metallic and consist of: wood, laminated lumber, fiberglass, glue, plastic, or fiberglass reinforced plastic. The site contains a 15-foot diameter turntable capable of supporting large cars and light trucks under test. Tabletop testing was conducted on a smaller 3m turntable described in the site recertification report. The test site has been fully described in a reports filled with the FCC and Industry Canada. The report filled with the FCC is dated October 19, 1999, was accepted by the FCC in a letter dated December, 20 1999. The report filled with Industry Canada, dated January 31, 2000, was accepted via a letter dated February 29, 2000. The site was re-certified with the FCC on December 27, 2002 and with the IC on January 27, 2003. Our OATS is registered with the IC under file number IC 3593. 1.5. Accreditation The Johnson Controls, Inc. - Electronics Validation Lab is accredited to ISO 17025 by the American Association for Laboratory Accreditation (A2LA). Our laboratory scope and accreditation certificate (#1869.01) are available from their web site www.a2la.org. Our scope of accreditation covers ANSI C63.4 Radiated Emissions at 3m, FCC 47 CFR Part 15, and IC RSS-210. 2. Product Labeling The FCC Identifier assigned is FCC ID: CB2SAHL4. The Industry Canada certification number is 279B-SAHL4. These identifiers will be embossed on the product housing. The label will be placed on the exterior of the HL4 housing using an acrylic adhesive that will permanently affix the label. Because of the small size of the device and because the installation is inside a portion of the automobile, the following statements will appear in the user’s manual. Refer to attachment “user_man.pdf” for the entire text of the user’s manual. “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, (2) This device must accept any interference that may be received including interference that may cause undesired operation. WARNING: The transmitter has been tested and complies with FCC and Industry Canada rules. Changes or modifications not expressly approved by the party responsible for the compliance could void the user’s authority to operate the device.” 2.1. Label Drawing and Location on Product. The label drawing as well as a sketch of the label location on product packaging is available in “label.pdf” 3. Test Configuration Radiated Emissions measurements presented in the report were made in accordance with ANSI C63.4 Figure 9(c). The EUT was placed on a 1 x 1.5m non-metallic table elevated 80cm above a conducting ground plane. The harness was run to the long edge of the table and dropped to a power supply sitting at base of the table. A picture of the radiated test setup is available as an attachment named “test_setup.jpg” Johnson Controls Interiors, LLC. Page 3 of 19 FCC ID: CB2SAHL4

November 14, 2005 4. Block Diagram For system block diagram please refer to attachment named “hl_block_diag.pdf” 5. Test Setup Photographs For test setup photos please refer to attachment named “end.jpg” For test setup photos please refer to attachment named “side.jpg” For test setup photos please refer to attachment named “flat.jpg” 6. Conducted Emissions Measurements Conducted Measurements are not required for this product. 7. Radiated Emissions Data 7.1. Summary of Results • Measurements of the transmit output field strength were taken with the DUT trained to 288, 310, and 418 MHz at 30, 50 and 80% duty cycles. A worst-case emission of 72.5 dBuV/m occurred with the DUT trained to 288 MHz, 80% duty cycle. The worst-case emission remained 1.4 dB below the FCC limit (73.8 dBuV/m) for this type of device. • The worst-case harmonic measurement of 46.7 dBuV/m was found at 576 MHz, the fourth harmonic of 309.5 MHz at 80% duty cycle. A margin of 7.3 dB to the prescribed FCC limit was noted. When adjusted for the duty cycle. • This module exhibits pulsed operation characteristics. • Measurements were taken of the 20dB occupied bandwidth. The transmitter had a maximum occupied bandwidth of 150 kHz when the DUT is trained to 418 MHz, 80% duty cycle. • This device has a worst case Class B emission of 39.9 dBuV/m at 30 MHz when set to transmit at 288 MHz a margin of 0.1 dB to the Class B limit is maintained. • The output power of the DUT varied by no more than 0.62 dB when the input voltage was varied from 6 to 18 Volts. The device does not operate when the input voltage is below 7V. • The device was found to be incapable of operating in restricted bands. • The device deactivated immediately after the activation button is depressed. Less than 5 sec. • The device uses pulses to tune the transmit antenna. At 418 MHz, 30% duty cycle the field strength of the pulses average 528 uV/m over 100 msec. This represents a margin on 25.4 dB to the FCC limit. 7.2. Test Equipment Used Description Model # Serial Number Last Cal Date Cal Due EMCO Biconical 3110B 9906-3309 7/15/05 7/15/07 Antenna (20- 300 MHz) EMCO LPA Antenna (200- 3148 9908-1076 7/14/05 7/14/07 2000MHz) Electro-metrics Double Ridged RGA-60 6147 10/21/03 10/21/05 Guide (1- 18GHz) Johnson Controls Interiors, LLC. Page 4 of 19 FCC ID: CB2SAHL4

November 14, 2005 A.H. Systems SAS-540 599 8/1/05 8/1/06 Bicon Antenna Agilent E- series EMC E4407B US41192569 10/26/04 10/26/05 Analyzer HP Spectrum 8591A S919A00107 10/17/05 10/17/06 Analyzer 7.3. Test Equipment Setup and Procedure Spectrum Analyzer Settings Emissions: Detector Function: Peak Resolution Bandwidth: 120kHz (below 1GHz) 1MHz (above 1GHz) Video Bandwidth: 300kHZ (below 1GHz) 3MHz (above 1GHz) Spectrum Analyzer Settings Occupied Bandwidth: Detector: Peak Resolution Bandwidth: 3 MHz ( to determine peak level) 1 kHz (to determine occupied bandwidth) Video Bandwidth: 3 MHz ( to determine peak level) 3 kHz (to determine occupied bandwidth) For the testing, the EUT was placed at the center of a non-conducting table 80 cm above the ground plane pursuant to ANSI C63.4 for stand-alone equipment. The 2-conductor cable harness was routed to the edge of the long side of the table then down to the power supply located on the turntable base. Equipment is placed in one of the three orthogonal orientations, End, Side, and Flat. These orientations are described below in Figure 7.3.1. Antenna Antenna Antenna Harness Harness Harness SIDE END FLAT Figure 7.3.1 EUT Orthogonal Orientations While in the prescribed orientation, the vertical antenna positioner sweeps in elevation from 1 to 4m in height until the operator finds the peak. The 3m turntable is then rotated through 360 degrees until a peak is found. The table is stopped at the peak location and the peak in elevation re-verified. Procedure is repeated for applicable orientations/measurement antenna polarizations. 7.4. Measured Data Johnson Controls Interiors, LLC. Page 5 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.1. Measurements of Fundamentals and Harmonics Measurements described in this section were taken according to ANSI C63.4-2003 on the Johnson Controls 3m test table. 7.4.1.1. DUT Tuned to 288MHz (Fundamental) Measurement Duty Cycle Frequency Orientation Duty Cycle Measurement* Average Level FCC Limit Margin Polarization Correction (MHz) (Flat/End/Side) (H/V) (%) (dBuV/m) (dB) (dBuV/m) (dBuV/m) (dB) 288 Side H 30 81.50 -10.46 71.0 73.8 2.8 288 Side H 50 78.03 -6.02 72.0 73.8 1.8 288 Side H 80 74.40 -1.94 72.5 73.8 1.4 * Measurements include Cable corrections and Antenna Factors 7.4.1.2. DUT Tuned to 310MHz (Fundamental) Measured at 309.5 due to ambients Measurement Duty Cycle Frequency Orientation Duty Cycle Measurement* Average Level FCC Limit Margin Polarization Correction (MHz) (Flat/End/Side) (H/V) (%) (dBuV/m) (dB) (dBuV/m) (dBuV/m) (dB) 309.5 Side H 30 81.97 -10.5 71.5 75.3 3.8 309.5 Side H 50 79.06 -6.0 73.0 75.3 2.2 309.5 Side H 80 75.44 -1.9 73.5 75.3 1.8 * Measurements include Cable corrections and Antenna Factors 7.4.1.3. DUT Tuned to 433MHz (Fundamental) Measurement Duty Cycle Frequency Orientation Duty Cycle Measurement* Average Level FCC Limit Margin Polarization Correction (MHz) (Flat/End/Side) (H/V) (%) (dBuV/m) (dB) (dBuV/m) (dBuV/m) (dB) 433 End V 30 88.02 -10.5 77.6 80.8 3.2 433 End V 50 84.35 -6.0 78.3 80.8 2.5 433 End V 80 80.9 -1.9 79.0 80.8 1.8 * Measurements include Cable corrections and Antenna Factors Johnson Controls Interiors, LLC. Page 6 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.1.4. 288MHz (Harmonics) Measurement Duty Cycle Frequency Orientation Duty Cycle Measurement* Average Level FCC Limit Margin Polarization Correction (MHz) (Flat/End/Side) (H/V) (%) (dBuV/m) (dB) (dBuV/m) (dBuV/m) (dB) 576 Side H 30 48.54 -10.5 38.1 53.8 15.7 576 Side H 50 42.98 -6.0 37.0 53.8 16.9 576 Side H 80 74.4 -1.9 72.5 53.8 -18.6 864 Flat V 30 Ambient -10.5 N/A 53.8 N/A 864 Flat V 50 Ambient -6.0 N/A 53.8 N/A 864 Flat V 80 Ambient -1.9 N/A 53.8 N/A 1152 End V 30 47.97 -10.5 37.5 53.8 16.3 1152 End V 50 45.89 -6.0 39.9 53.8 14.0 1152 Side H 80 46 -1.9 44.1 53.8 9.8 1440 End V 30 45.43 -10.5 35.0 53.8 18.9 1440 End V 50 43.97 -6.0 37.9 53.8 15.9 1440 Flat V 80 42.87 -1.9 40.9 53.8 12.9 1728 End V 30 50.85 -10.5 40.4 53.8 13.4 1728 End V 50 49.03 -6.0 43.0 53.8 10.8 1728 End V 80 47.33 -1.9 45.4 53.8 8.4 2016 Flat H 30 44.4 -10.5 33.9 53.8 19.9 2016 Flat H 50 44.51 -6.0 38.5 53.8 15.3 2016 End V 80 44.65 -1.9 42.7 53.8 11.1 2304 Side V 30 Noise -10.5 N/A 53.8 N/A 2304 Side V 50 Noise -6.0 N/A 53.8 N/A 2304 Side V 80 Noise -1.9 N/A 53.8 N/A 2592 Flat V 30 Noise -10.5 N/A 53.8 N/A 2592 Flat V 50 Noise -6.0 N/A 53.8 N/A 2592 Flat V 80 Noise -1.9 N/A 53.8 N/A 2880 Flat V 30 Noise -10.5 N/A 53.8 N/A 2880 Flat V 50 Noise -6.0 N/A 53.8 N/A 2880 Flat V 80 Noise -1.9 N/A 53.8 N/A Ambient Noise Floor * Measurements include Cable corrections and Antenna Factors Johnson Controls Interiors, LLC. Page 7 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.1.5. 310MHz (Harmonics) Measurement Duty Cycle Frequency Orientation Duty Cycle Measurement* Average Level FCC Limit Margin Polarization Correction (MHz) (Flat/End/Side) (H/V) (%) (dBuV/m) (dB) (dBuV/m) (dBuV/m) (dB) 619 Side V 30 41.25 -10.5 30.8 55.3 24.5 619 Side V 50 37.45 -6.0 31.4 55.3 23.9 619 Side V 80 35.66 -1.9 33.7 55.3 21.6 928.5 End V 30 Ambient -10.5 N/A 55.3 N/A 928.5 End V 50 Ambient -6.0 N/A 55.3 N/A 928.5 End V 80 Ambient -1.9 N/A 55.3 N/A 1238 End V 30 52.22 -10.5 41.8 54.0 12.2 1238 End V 50 50.32 -6.0 44.3 54.0 9.7 1238 End V 80 48.59 -1.9 46.7 54.0 7.3 1547.5 End V 30 51.44 -10.5 41.0 54.0 13.0 1547.5 End H 50 43.62 -6.0 37.6 54.0 16.4 1547.5 Flat V 80 41.42 -1.9 39.5 54.0 14.5 1857 End V 30 Ambient -10.5 N/A 55.3 N/A 1857 End V 50 Ambient -6.0 N/A 55.3 N/A 1857 End V 80 Ambient -1.9 N/A 55.3 N/A 2166.5 End V 30 43.72 -10.5 33.3 55.3 22.0 2166.5 End V 50 Noise -6.0 N/A 55.3 N/A 2166.5 End V 80 Noise -1.9 N/A 55.3 N/A 2476 Side V 30 42.39 -10.5 31.9 55.3 23.4 2476 Flat V 50 Noise -6.0 N/A 55.3 N/A 2476 End V 80 Noise -1.9 N/A 55.3 N/A 2785.5 End V 30 44.15 -10.5 33.7 54.0 20.3 2785.5 End V 50 Noise -6.0 N/A 55.3 N/A 2785.5 End V 80 Noise -1.9 N/A 55.3 N/A 3095 Side V 30 Noise -10.5 N/A 55.3 N/A 3095 Side V 50 Noise -6.0 N/A 55.3 N/A 3095 Side V 80 Noise -1.9 N/A 55.3 N/A Ambient Noise * Measurements include Cable corrections and Antenna Factors Johnson Controls Interiors, LLC. Page 8 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.1.6. 418MHz (Harmonics) Measurement Duty Cycle Frequency Orientation Duty Cycle Measurement* Average Level FCC Limit Margin Polarization Correction (MHz) (Flat/End/Side) (H/V) (%) (dBuV/m) (dB) (dBuV/m) (dBuV/m) (dB) 866 End V 30 62.53 -10.5 52.1 60.8 8.7 866 End V 50 54.99 -6.0 49.0 60.8 11.8 866 End V 80 51.41 -1.9 49.5 60.8 11.3 1299 Side H 30 56.35 -10.5 45.9 60.8 14.9 1299 Flat H 50 51.23 -6.0 45.2 60.8 15.6 1299 Flat H 80 49.84 -1.9 47.9 60.8 12.9 1732 Flat V 30 53.38 -10.5 42.9 54.0 11.1 1732 Flat V 50 49.12 -6.0 43.1 54.0 10.9 1732 Flat V 80 48.41 -1.9 46.5 54.0 7.5 2165 Side V 30 50.24 -10.5 39.8 60.8 21.0 2165 Side V 50 48.65 -6.0 42.6 60.8 18.2 2165 Side V 80 46.57 -1.9 44.6 60.8 16.2 2598 Side V 30 46.92 -10.5 36.5 60.8 24.3 2598 Side V 50 Noise -6.0 Noise 60.8 Noise 2598 Side V 80 Noise -1.9 Noise 60.8 Noise 3031 End V 30 49.37 -10.5 38.9 60.8 21.9 3031 End V 50 Noise -6.0 Noise 60.8 Noise 3031 End V 80 Noise -1.9 Noise 60.8 Noise 3464 Flat V 30 50.86 -10.5 40.4 60.8 20.4 3464 Flat V 50 Noise -6.0 Noise 60.8 Noise 3464 Flat V 80 Noise -1.9 Noise 60.8 Noise 3897 End V 30 53.29 -10.5 42.8 54.0 11.2 3897 End V 50 Noise -6.0 Noise 60.8 Noise 3897 End V 80 Noise -1.9 Noise 60.8 Noise 4330 Side H 30 52.04 -10.5 41.6 54.0 12.4 4330 Side H 50 Noise -6.0 Noise 60.8 Noise 4330 Side H 80 Noise -1.9 Noise 60.8 Noise * Measurements include Cable corrections and Antenna Factors Johnson Controls Interiors, LLC. Page 9 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.2. Pulsed Operation The Homelink© transmitter tested here transmits pulses using amplitude modulation with varying duty cycle. Verification of pulse operation at 30, 50 and 80% duty cycles is provided here. Measurements were taken at 288MHz with the span set to zero on the E7407B spectrum analyzer. 7.4.2.1. 30% Duty Cycle 7.4.2.2. 50% Duty Cycle Johnson Controls Interiors, LLC. Page 10 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.2.3. 80% Duty Cycle 7.4.3. Occupied Bandwidth Occupied bandwidth measurements were taken at 288, 310, and 418 MHz. The occupied bandwidth was determined using the 20dB measurement method. 7.4.3.1. Occupied Bandwidth Measurement Occupied Frequency Duty Cycle Bandwidth Limit (MHz) (%) (kHz) (kHz) 30 140 720 288 50 140 720 80 140 720 30 90 775 310 50 83 775 80 90 775 30 135 1082.5 433 50 140 1082.5 80 150 1082.5 Johnson Controls Interiors, LLC. Page 11 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.3.2. Example of Occupied Bandwidth measurement (288MHz 30% Duty Cycle) Measuring Peak Reference Level Measuring Occupied Bandwidth at –20dB points Johnson Controls Interiors, LLC. Page 12 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.4. Emission Spectrum Prescan Measurements were taken inside a semi-anechoic chamber to investigate the possibility of other spurious emissions from the DUT. Emissions were noted and measured on the JCI OATS, all measurements were found to be near or below the ambient noise level and well below the FCC limits for spurious emissions. A summary is presented below in section 7.4.4.4 Measurement settings: Resolution BW 120kHz Video Bandwidth: 300kHz Detector: Peak Note: Pre-scan measurements were made in a semi-anechoic chamber using a Rohde & Schwarz EMI Test Receiver 7GHz. The semi-anechoic chamber and test receiver are part of the Johnson Control Electronics Validation Group. 7.4.4.1. Summary of Emissions Measurements Taken on OATS Transmitting Field Frequency Frequency DUT Antenna Strength Limit Margin (MHz (MHz) Orientation Polarization (dBuV/m) (dBuV/m) (dB) 30 Flat V 40 40 0 288 40.8 Flat H 27.75 40 12.25 61.7 Flat H 48.41 40 -8.41 89.4 End V 62.84 40 -22.84 40.1 End V 30.1 40 9.9 310 50.3 Flat H 38.54 40 1.46 51.3 Flat H 37.45 40 2.55 47.6 Flat H 36.5 40 3.5 87.4 Flat H 44.94 40 -4.94 113 Flat H 28.67 40 11.33 433 145.4 Flat H 20.17 40 19.83 156.9 Flat V 26.88 40 13.12 175.1 Side H 54.99 40 -14.99 Local ambients Measurements were made using a peak detector with Resolution BW of 120 kHz and Video BW of 300 kHz. Cable losses and correction factors included in measurement. Local ambient measurements are not present on scatter-plot. Johnson Controls Interiors, LLC. Page 13 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.4.2. Plot of Class B Emissions relative to FCC Limit Homelink IV Class B Emissions 45 40 35 30 25 288 MHz 310 MHz 433 MHz 20 15 10 5 0 0 20 40 60 80 100 120 140 160 180 7.4.5. Variation of Supply Voltage Measurements of the variation in output field strength due to variation in the supply voltage were taken in accordance with 15.31(e). The DUT was configured to transmit at 310MHz, 30% Duty Cycle. Values presented are not corrected for duty cycle. 7.4.5.1. Plot of output power over supply voltage Output Field Strength vs. Supply Voltage 100 90 80 70 Field Strength (dBuV/m) 60 50 40 30 20 10 0 0 2 4 6 8 10 12 14 16 18 20 Supply Voltage (V) Johnson Controls Interiors, LLC. Page 14 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.5.2. Output power as a function of supply voltage Field Voltage Strength (dBuV/m) 6 No Op 7 86.86 8 87.66 9 87.75 10 87.5 11 87.47 12 87.52 13 87.34 14 87.53 15 87.5 16 87.59 17 87.6 18 87.47 7.4.6. Verification of Non-Operation in Restricted Bands An exercise was undergone to verify that the device was not able to learn and thereby transmit in a restricted band. During this exercise it was found that the device firmware prevents the device from learning any frequency within 1MHz of any restricted band listed in 47 CFR 15.205. 7.4.7. Verification of De-activation after 5 seconds This device stops transmitting once the activation button in depressed. Johnson Controls Interiors, LLC. Page 15 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.8. Tuning Pulse Measurements This device uses pulses to tune the antenna prior to transmission. Measurements of these tuning pulses over 100 msec windows show that these pulses are below the FCC limits for operation in this band. A summary of measurements is presented in section 7.4.8.7. Tuning pulse measurements were taken at 288, 310, and 433 MHz at a duty cycle of 30%. Settings in the screen capture below were not used to make the measurements presented in section 7.4.8.7. 7.4.8.1. Tuning Pulse (288MHz) Antenna Tuning Pulses 288 MHz 8000.00 7000.00 6000.00 5000.00 Field Strength (uV/m) 4000.00 3000.00 2000.00 1000.00 0.00 0.050000 0.070000 0.090000 0.110000 0.130000 0.150000 0.170000 -1000.00 Time (s) Johnson Controls Interiors, LLC. Page 16 of 19 FCC ID: CB2SAHL4

November 14, 2005 7.4.8.2. Tuning Pulse (310MHz) Tuning Pulse 310 MHz 1.400E+04 1.200E+04 1.000E+04 8.000E+03 Field Strength (uV/m) 6.000E+03 4.000E+03 2.000E+03 0.000E+00 0.09000 0.11000 0.13000 0.15000 0.17000 0.19000 -2.000E+03 Time (s) 7.4.8.3. Tuning Pulse (433 MHz) Tuning Pulse 418 MHz 25000.00 20000.00 15000.00 Field Strength (uV/m) 10000.00 5000.00 0.00 0.09000 0.11000 0.13000 0.15000 0.17000 0.19000 -5000.00 Time (s) 7.4.8.4. Summary of Tuning Pulse Measurements Measurement Settings: Resolution Bandwidth: 1MHz Video Bandwidth: 3 MHz Sweep Time: 300 msec. Johnson Controls Interiors, LLC. Page 17 of 19 FCC ID: CB2SAHL4

November 14, 2005 For this measurement 4000 points were recorded and the values averaged over 100 msec. windows that captured the tuning pulse. Frequency Average Limit Margin (MHz) (uV/m) (uV/m) (dB) 288 137 4915 31.1 310 210 5831 28.9 418 528 9806 25.4 7.5. Formulas and Sample Calculations 7.5.1. Adjustment to account for duty cycle The spectrum analyzers used for making the measurements in this report automatically corrects for cable correction and antenna factors using values stored in memory taken from the most recent calibration (in the case of antenna factors) and periodic cable loss measurements. Formula 1: FS(dBuV/m) = M(dBuV) + AF(dB/m) + CF(dB) The presented field strength is computed by the spectrum analyzer by taking the measured level and adding to it the antenna factor and cable loss corrections. The measurement presented in gathered using the spectrum analyzer’s peak-hold capability. Formula 2: Average Level(dBuV/m) = Peak Level (dBuV/m) + duty cycle factor(dB). The peak measurement is adjusted to an average level by a duty cycle described below. The duty cycle factor to apply is determined for the duty cycles of 30%, 50%, and 80% as follows: For 30% (0.30): duty cycle factor(dB) = 20*Log(0.3) = -10.46 For 50% (0.50): duty cycle factor(dB) = 20*Log(0.5) = -6.02 For 80% (0.80): duty cycle factor(dB) = 20*Log(0.8) = -1.94 Example calculation: With the EUT programmed with a 30% duty cycle a measurement of 74 dBuV/m is taken (about 5000 uV/m), the adjusted level would be: 74 + (-10.46) = 63.54 dBuV/m (example) 7.5.2. Calculation of FCC limits from 15.231. The prescribed limit in the range of 260 MHz to 470 MHz is stated as a linear interpolation between 3750 uV/m and 12500 uV/m. The equation used to calculate the limit using this criteria is: FCC limit = 41.67 * f – 7083.33 (Where ‘f’ is the measurement frequency in MHz.) The limit is dBuV/m is then: dB limit = 20 * log10( FCC limit uV/m) = 20*log10( 41.67*f – 7083.33) ( log10 is used to indicated the use of a base 10 logarithm) This results in the following limits for the fundamentals: Johnson Controls Interiors, LLC. Page 18 of 19 FCC ID: CB2SAHL4

November 14, 2005 288MHz 20*log10(4917.6) = 73.8 dBuV/m 310MHz 20*log10(5834.4) = 75.3 dBuV/m 390MHz 20*log10(9168.0) = 79.2 dBuV/m 418MHz 20*log10(10334.7) = 80.3 dBuV/m 8. Photos of Product Tested 8.1. Front View Please refer to attachment named “front_view.jpg” 8.2. Rear View Please refer to attachment named “rear_view.jpg” 8.3. Unit Disassembled Please refer to attachment named “assembly.jpg” 8.4. Homelink© Board Please refer to attachment named “internal_front.jpg” Please refer to attachment named “internal_rear.jpg” Please refer to attachment name “closeup.jpg” (Close-up of Homelink section of board). 9. Other Attachments and Description 9.1. User Manual Please refer to attachment “user_manual.pdf”. 9.2. Schematics/ Tuning Information For schematics please refer to attachment “schematics.pdf”. For tuning information please refer to attachment “tuning.pdf”. 9.3. Theory of Operation For schematics please refer to attachment “theory_op.pdf” Johnson Controls Interiors, LLC. Page 19 of 19 FCC ID: CB2SAHL4


Document Created: 2005-11-14 10:36:13
Document Modified: 2005-11-14 10:36:13
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