HBW1420

CANADA DATE: PART NO:N DE PIECE: O FCC ID: 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 interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. THE CHAMBERLAIN GROUP, INC. U.S.A. Patents Pending ASSEMBLED IN CHINA 40-16697A CANADA DATE: PART NO:N DE PIECE: O FCC ID: 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 interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. THE CHAMBERLAIN GROUP, INC. U.S.A. Patents Pending ASSEMBLED IN CHINA 40-16697A SCALE 1 - 1 SCALE 2 - 2, FOR PROOFING PART NO.: 40-16697A DESCRIPTION: LABEL, TRANSMITTER FCC ARTWORK: BLACK BACKGROUND AND REVERSING OUT WHITE LETTERS AND WHITE PRINTABLE AREAS SIZE: 1.5" WIDE x 1.3" HIGH

845 Larch Ave. Elmhurst, IL 60126 Phone 630.993.6306 Fax 630.530.6140 Ema il: b a rb a ra . k e lk ho ff@ c ha mb e rla ingro up . c o m June 20, 2000 Federal Communications Commission EQUIPMENT APPROVAL SERVICES PO Box 358315 Pittsburgh, PA 15251-5315 Re: Request for Certification Enclosed is an application, fee in the amount of $940, and exhibits for Certification of a Remote Control Transmitter, Model TC1. There are a total of 3 transmitter models, TC1, TC2, & TC4, which use the same PC board and RF circuitry. They are designed to accept 1, 2, and 4 pushbutton inputs respectively, and transmit on either 300 MHz fixed frequency antenna or 310 MHz fixed frequency antenna. The final instruction sheet is not available at this time, so I have included a typical instruction sheet indicating the FCC statement and important information. The FCC ID of this model, upon certification, will be HBW1420. We would appreciate your prompt attention to the submittal. Sincerely, THE CHAMBERLAIN GROUP, INC. Barbara P. Kelkhoff Manager, Regulatory Affairs LIST OF EXHIBITS REMOTE CONTROL TRANSMITTER MODEL TC1 1. Expository Statement 2. Theory of Operation 3. Schematic 4. Photographs 5. FCC Label Drawing 6. Operating Instructions 7. Test Report EXPOSITORY STATEMENT REMOTE CONTROL TRANSMITTER MODEL TC1 1. Since the final instruction sheet is not available at this time, a marked-up typical version has been included. The instructions include statements required to assure compliance with the Commission's Rules; Part 15. 2. Labeling is in accordance with the Commission's labeling requirements, Parts 2 and 15, Section 15.19. 3. This transmitter is intended for use with the certified receivers of our manufacture only. 4. The transmitter is equipped with an automatically releasing push-button switch. Transmission is terminated upon release of the push-button. 5. The TC1 is factory set to 300 and 310 ± 0.1% MHz. It is not intended to be readjusted in the field, and specific instructions prohibiting tampering are provided to the user. 6. Test data for the Model TC1 is part of this submission. No emissions were detected in the forbidden bands below 1.0GHz. Certified by: Barbara P. Kelkhoff Manager, Regulatory Affairs Theory of Operation and Circuit Description TriCode TC1, TC2, & TC4 Transmitters (Please refer to the enclosed schematic assembly drawing: 195D1420) Overview The TriCode transmitters TC1, TC2 & TC4 are designed to accept 1, 2, & 4 pushbutton inputs respectively, and transmit on either a 300 MHz fixed frequency antenna or 310 MHz fixed frequency antenna. The circuit has two sets of user-settable switches. Each set is comprised of a configuration switch and a DIP switch. The output of the transmitter is determined by the pushbutton pressed, configuration switch settings, and DIP switch settings. TC1 and TC2 are subsets of the TC4 transmitter, and thus, TC4 will be described here in order to include the full circuit. Power supply circuitry Power is supplied to the circuit by a 9V battery. The battery is connected to the circuit board via wires soldered into holes E1 & E2. Power is supplied to the transmitter circuitry through the pushbutton switches S1, S2, S3, and S4/S7. Power is only supplied to the transmitter circuitry when one or more of the pushbuttons are pressed. R7, C16, & D4 provide regulation of the power supply circuit to the transmitter circuit. R8 & D5 provide visual indication that power has been supplied to the transmitter circuit. Pushbutton circuitry Pushbuttons S1, S2, S3, and S4/S7 are the primary components of the pushbutton circuitry. D1, D2, and D3 are used to provide isolation between the pushbutton inputs to the microprocessor, U1. R9, R10, R11, R12, R13, and R14 are used to bias the pushbutton inputs to the microprocessor. Configuration switch circuitry Three-position slide switches S8 & S9 are the primary components of the configuration switch circuit. R20, R21, & R37 are used to bias the configuration switch inputs to the microprocessor. DIP switch circuitry DIP switches S5 & S6 are the primary components of the DIP switch circuit. R22, R23, R24, R25, R26, R32, R33, R34, R35, R36, R15, R16, R17, R18, R19, R27, R28, R29, R30, R31, C17, C18, C19, C20, C21, C22, C23, C24, C25, and C26 are used to bias and provide timing for the inputs to the microprocessor . RF circuitry TriCode transmitters have two fixed antenna outputs – 300 MHz & 310 MHz. C1, C4, C7 & C9 are the primary components of the 300 MHz antenna circuit. R4, R1, C8, Q1, R5, & C11 are the means by which a coded message from the microprocessor, U1, may be transmitted on the 300 MHz antenna. C2, C3, C5, & C10 are the primary components of the 310 MHz antenna circuit. R2, R3, C6, Q2, R6, & C12 are the means by which a coded message from the microprocessor, U1, may be transmitted on the 310 MHz antenna. Microprocessor The microprocessor, U1, performs two main functions: Input recognition and coded message construction. Input recognition is accomplished by monitoring the input pins for the pushbutton switches, polling and reading the configuration switches, and polling and reading the DIP switches. The combination of inputs determines the makeup of the coded messages. Each coded message directly correlates to a specific antenna output. This combination of coded message and antenna output forms the transmission of the TriCode transmitter. If an error is detected while reading the inputs, no coded message is generated, and the transmitter does not transmit a signal. 7. TEST REPORT

Retlif Testing Laboratories R Test Report No. R-8518-1 APPLICANT Chamberlain 2111 Lakeland Avenue Ronkonkoma, NY 11779 MANUFACTURER Chamberlain 2111 Lakeland Avenue Ronkonkoma, NY 11779 TEST SPECIFICATION: FCC Rules and Regulations Part 15, Subpart C, Para. 15.231 TEST PROCEDURE: ANSI C63.4:1992 TEST SAMPLE DESCRIPTION BRANDNAME: Chamberlain MODEL: Tricode Tx 1(Two Button) / Tricode Tx 4 (4 Button) TYPE: 300/310 MHz Pulsed RF Transmitter POWER REQUIREMENTS: 9 VDC derived Alkaline Battery FREQUENCY OF OPERATION: 300/310 MHz TESTS PERFORMED Para. 15.231(a), Radiated Emissions, Fundamental and Harmonics Para. 15.231(c), Occupied Bandwidth Duty Cycle Determination REPORT OF MEASUREMENTS Applicant: Chamberlain Device: 300/310 MHz Pulsed RF Transmitter Applicable Rule Section: Part 15, Subpart C, Section 15.231 Retlif Testing Laboratories R Test Report No. R-8518-1 REPORT OF MEASUREMENTS (continued) TEST RESULTS 15.231 (a) -The device is used as a transmitter for remote control purposes. 15.231 (a)(1) & -The transmitter is manually operated and ceases transmission within 5 15.231(2)seconds after deactivation. 15.231 (a)(3) -The transmitter does not perform periodic transmissions. 15.231 (a)(4)-Not applicable 15.231 (b) -The fundamental field strength did not exceed 5420/5835 μV/M (Average) at a test distance of 3 meters. In addition, the requirements of section 15.35 for averaging pulsed emissions and for limiting peak emissions were met. The field strength of harmonic and spurious emissions did not exceed 542/583 μV/M (AVERAGE). 15.231 (c) -The device operates 300/310 MHz. The bandwidth of emissions did not exceed 0.25% of the operating frequency (750/775 kHz). DETERMINATION OF FIELD STRENGTH LIMITS The field strength limits shown below are found in Section 15.231. Frequency Limit F1=2603750=L1 Fo=300/310Lo F2=47012500=L2 The formula below was utilized to determine the limits: Limit = L1 + [(Fo-F1)(L2-L1)/(F2-F1)] Solving yields: Fundamental Limit= 5420/5833 μV/M (AVERAGE) @ 3 Meters Harmonic Limit= 542/583 μV/M (AVERAGE) @ 3 Meters Retlif Testing Laboratories R Test Report No. R-8518-1 REPORT OF MEASUREMENTS (continued) DETERMINATION OF DUTY CYCLE The unit’s RF output was directly coupled to the input of the spectrum analyzer. The analyzer was set for a frequency span of 0Hz. The sweep time was then adjusted in order to display one full pulse train. The transmitter on time was then summed and compared to the time for one full cycle in order to obtain the duty cycle. (See plots for additional information) Transmitter On Time=8.8 milliseconds (maximum- worst case per cycle) Transmitter Cycle Time=38.5 milliseconds, (2.6 cycles/100 msec) Transmitter Duty Cycle=23.5 % CALCULATION: 3 x 1.58 msec = 4.74 milliseconds 4 x 580 μs (small pulse)= 4.06 milliseconds (4.74 + 4.06 ) x 2.6= 23.5 milliseconds Duty Cycle=23.5 % Correction Factor = 20 log(0.248) =-12.6 SPECTRUM ANALYZER DESENSITIZATION CONSIDERATIONS Due to the nature of the emissions being measured, care was taken to ensure that the resolution bandwidth of the spectrum analyzer was adequate to provide accurate measurements. The following formula was utilized: Setting pulse desensitization equal to zero and utilizing the minimum observed pulse width of 580μs yields a minimum required bandwidth of 1150 Hz. FCC specified bandwidths of 100kHz and 1MHz were utilized below and above 1GHz, respectively. Retlif Testing Laboratories R Test Report No. R-8518-1 REPORT OF MEASUREMENTS (continued) GENERAL NOTES 1.All readings were taken utilizing a peak detector function at a test distance of 3 meters. 2.The duty cycle was applied to the peak readings in order to determine the average value of the emissions. 3.All measurements were made with a new 9VDC Alkaline Battery. 4.The device was tested twice, once at 300 MHz and once at 310 MHz. 5.The frequency range was scanned from 30 MHz to 3.1 GHz. All emissions not reported were more than 20 dB below the specified limit. Retlif Testing Laboratories R Test Report No. R-8518-1 EQUIPMENT LIST FCC15.231(b) Radiated Emissions, 30MHz to 3100MHz ENTypeManufacturerDescription.Model No.Cal DateDue Date 062High Gain Horn AntennaMicrolab/FXR1.7 GHz - 2.6 GHzR638A01/25/200001/25/2001 063High Gain Horn AntennaMicrolab/FXR2.6 GHz-3.95 GHzS638A01/26/200001/26/2001 067Open Area Test SiteRetlif3 MeterRNY10/15/199710/15/2000 133Broadband Pre-AmplifierElectro-Metrics10 kHz - 1 GHz, 26dBBPA-100006/22/199906/22/2000 141Spectrum AnalyzerHewlett Packard100 Hz - 40 GHz8566B03/20/200009/20/2000 141AGraphics PlotterHewlett PackardN/A7470A03/08/200003/08/2001 141BQuasi-Peak AdaptorHewlett Packard100 Hz - 1 GHz85650A03/20/200009/20/2000 206B6.0 dB AttenuatorTexscan0 - 1.0 GHzFP-50 - 6 dB06/22/199906/22/2000 523BiconilogElectro-Mechanics26 - 2000 MHz3142B10/22/199805/22/2000 543PreamplifierHewlett Packard1.0 GHz - 26.5 GHz8449B06/16/199906/16/2001 Retlif Testing Laboratories R Test Report No. R-8518-1 FCC 15.231(b) RADIATED EMISSIONS (Please see separate e-file attachment named RE Data.doc) Retlif Testing Laboratories R Test Report No. R-8518-1 FCC 15.231(c) OCCUPIED BANDWIDTH (Please see separate e-file attachment named Occbw.pdf) Retlif Testing Laboratories R Test Report No. R-8518-1 DUTY CYCLE PLOTS (Please see separate e-file attachment named Dutycycle.pdf)

Retlif Testing Laboratories R Data Sheet 1 of 4 Test Method: FCC Part 15 Subpart C Radiated Emissions, Fundamental & Harmonic Emissions Customer: Chamberlain Job No. R-8518-1 Test Sample: 300 MHz Pulsed RF Transmitter (four button) Paragraph: 15.231(b) Model No.: Tricode Tx 4 FCC ID: Operating Mode: Continuously Transmitting a 300MHz Pulsed Signal Technician: Peter Lananna Date: May 8, 2000 Notes: Test Distance: 3 Meters Detector: Peak, Unless otherwise specified Test Freq. Antenna Pol./Height EUT Orientation Meter Reading Correction Factor Corrected Reading Converted Reading Peak Limit MHz (V/H)/Meters X / Y / Z dBuV dB dBuV/m uV/m uV/m 300 H / 1.0 X 85.2 -4.4 80.8 10964.8 54200 | H / 1.0 Y 70.9 -4.4 66.5 2113.5 | | H / 1.0 Z 85.3 -4.4 80.9 11091.7 | | V / 1.5 X 68.4 -4.4 64.0 1584.9 | | V / 1.8 Y 80.7 -4.4 76.3 6531.3 | 300 V / 1.5 Z 71.5 -4.4 67.1 2264.6 54200 600 H / 1.0 X 50.4 2.4 52.8 436.5 5420 | H / 1.0 Y 43.0 2.4 45.4 186.2 | | H / 1.0 Z 48.5 2.4 50.9 350.8 | | V / 1.0 X 44.2 2.4 46.6 213.8 | | V / 1.0 Y 51.3 2.4 53.7 484.2 | 600 V / 1.0 Z 51.2 2.4 53.6 478.6 5420 900 H / 1.0 X 35.7 7.2 42.9 139.6 5420 | H / 1.0 Y 34.6 7.2 41.8 123.0 | | H / 1.0 Z 36.3 7.2 43.5 149.6 | | V / 1.5 X 33.3 7.2 40.5 105.9 | | V / 1.0 Y 36.6 7.2 43.8 154.9 | 900 V / 1.0 Z 40.0 7.2 47.2 229.1 5420 1200 H / 1.5 X 52.0 -4.6 47.4 234.4 5000 | H / 1.5 Y 52.6 -4.6 48.0 251.2 | | H / 1.5 Z 52.1 -4.6 47.5 237.1 | | V / 1.5 X 53.5 -4.6 48.9 278.6 | | V / 1.5 Y 55.1 -4.6 50.5 335.0 | 1200 V / 1.0 Z 55.9 -4.6 51.3 367.3 5000 1500 H / 1.5 X 55.8 -1.3 54.5 530.9 5000 | H / 1.5 Y 53.8 -1.3 52.5 421.7 | | H / 1.5 Z 50.9 -1.3 49.6 302.0 | | V / 1.5 X 50.8 -1.3 49.5 298.5 | | V / 1.3 Y 55.3 -1.3 54.0 501.2 | 1500 V / 1.3 Z 53.9 -1.3 52.6 426.6 5000 The frequency range was scanned from 30 MHz to 3.0 GHz. All emissions not recorded were more Than 10 dB below the specified limit. Emissions from the EUT do not exceed the specified limits. *=Noise Floor Measurements (Minimum system sensitivity) Retlif Job Number R-8518-1 Retlif Testing Laboratories R Data Sheet 2 of 4 Test Method: FCC Part 15 Subpart C Radiated Emissions, Fundamental & Harmonic Emissions Customer: Chamberlain Job No. R-8518-1 Test Sample: 300 MHz Pulsed RF Transmitter (four button). Paragraph: 15.231(b) Model No.: Tricode Tx 4 FCC ID: Operating Mode: Continuously Transmitting a 300 MHz Pulsed Signal Technician: Peter Lananna Date: May 8, 2000 Notes: Test Distance: 3 Meters Detector: Peak, unless otherwise specified Test Freq. Antenna Pol./Height EUT Orientation Meter Reading Correction Factor Corrected Reading Converted Reading Peak Limit MHz (V/H)-Meters X / Y / Z dBuV dB dBuV/m uV/m uV/m 1800 H /1.0 X 41.0 1.9 42.9 139.6* 5420 | H / 1.0 Y 41.0 1.9 42.9 139.6* | | H / 1.0 Z 41.0 1.9 42.9 139.6* | | V / 1.0 X 41.0 1.9 42.9 139.6* | | V / 1.0 Y 41.0 1.9 42.9 139.6* | 1800 V / 1.0 Z 41.0 1.9 42.9 139.6* 5420 2100 H /1.0 X 40.4 -8.0 32.4 41.7* 5420 | H / 1.0 Y 40.4 -8.0 32.4 41.7* | | H / 1.0 Z 40.4 -8.0 32.4 41.7* | | V / 1.0 X 40.4 -8.0 32.4 41.7* | | V / 1.0 Y 40.4 -8.0 32.4 41.7* | 2100 V / 1.0 Z 40.4 -8.0 32.4 41.7* 5420 2400 H /1.0 X 40.5 -7.3 33.2 45.7* 5420 | H / 1.0 Y 40.5 -7.3 33.2 45.7* | | H / 1.0 Z 40.5 -7.3 33.2 45.7* | | V / 1.0 X 40.5 -7.3 33.2 45.7* | | V / 1.0 Y 40.5 -7.3 33.2 45.7* | 2400 V / 1.0 Z 40.5 -7.3 33.2 45.7* 5420 2700 H /1.0 X 35.2 -6.8 28.4 26.3* 5000 | H / 1.0 Y 35.2 -6.8 28.4 26.3* | | H / 1.0 Z 35.2 -6.8 28.4 26.3* | | V / 1.0 X 35.2 -6.8 28.4 26.3* | | V / 1.0 Y 35.2 -6.8 28.4 26.3* | 2700 V / 1.0 Z 35.2 -6.8 28.4 26.3* 5000 3000 H /1.0 X 38.1 -5.5 32.6 42.7* 5420 | H / 1.0 Y 38.1 -5.5 32.6 42.7* | | H / 1.0 Z 38.1 -5.5 32.6 42.7* | | V / 1.0 X 38.1 -5.5 32.6 42.7* | | V / 1.0 Y 38.1 -5.5 32.6 42.7* | 3000 V / 1.0 Z 38.1 -5.5 32.6 42.7* 5420 The frequency range was scanned from 30 MHz to 3.0 GHz. All emissions not recorded were more Than 10 dB below the specified limit. Emissions from the EUT do not exceed the specified limits. *=Noise Floor Measurements ( Minimum system sensitivity) Retlif Job Number R-8518-1 Retlif Testing Laboratories R Data Sheet 3 of 4 Test Method: FCC Part 15 Subpart C Radiated Emissions, Fundamental & Harmonic Emissions Customer: Chamberlain Job No. R-8518-1 Test Sample: 300 MHz Pulsed RF Transmitter (four button) Paragraph: 15.231(b) Model No.: Tricode Tx 4 FCC ID: Operating Mode: Continuously Transmitting a 300MHz Pulsed Signal Technician: Date: May 8, 2000 Notes: Test Distance: 3 Meters Duty Cycle: 23.5% Detector: Peak, unless otherwise specified Duty Cycle Correction: - 12.6 dB Test Freq. Antenna Pol./Height EUT Orientation Peak Reading Correction Factor Corrected Reading Converted Reading Avg. Limit MHz (V/H)-Meters X / Y / Z dBuV dB dBuV/m uV/m uV/m 300 H / 1.0 X 80.8 -12.6 68.2 2570.4 5420 | H / 1.0 Y 66.5 -12.6 53.9 495.5 | | H / 1.0 Z 80.9 -12.6 68.3 2600.2 | | V / 1.5 X 64.0 -12.6 51.4 371.5 | | V / 1.8 Y 76.3 -12.6 63.7 1531.1 | 300 V / 1.5 Z 67.1 -12.6 54.5 530.9 5420 600 H / 1.0 X 52.8 -12.6 40.2 102.3 542 | H / 1.0 Y 45.4 -12.6 32.8 43.7 | | H / 1.0 Z 50.9 -12.6 38.3 82.2 | | V / 1.0 X 46.6 -12.6 34.0 50.1 | | V / 1.0 Y 53.7 -12.6 41.1 113.5 | 600 V / 1.0 Z 53.6 -12.6 41.0 112.2 542 900 H / 1.0 X 42.9 -12.6 30.3 32.7 542 | H / 1.0 Y 41.8 -12.6 29.2 28.8 | | H / 1.0 Z 43.5 -12.6 30.9 35.1 | | V / 1.5 X 40.5 -12.6 27.9 24.8 | | V / 1.0 Y 43.8 -12.6 31.2 36.3 | 900 V / 1.0 Z 47.2 -12.6 34.6 53.7 542 1200 H / 1.5 X 47.4 -12.6 34.8 55.0 500 | H / 1.5 Y 48.0 -12.6 35.4 58.9 | | H / 1.5 Z 47.5 -12.6 34.9 55.6 | | V / 1.5 X 48.9 -12.6 36.3 65.3 | | V / 1.5 Y 50.5 -12.6 37.9 78.5 | 1200 V / 1.0 Z 51.3 -12.6 38.7 86.1 500 1500 H / 1.5 X 54.5 -12.6 41.9 124.5 500 | H / 1.5 Y 52.5 -12.6 39.9 98.9 | | H / 1.5 Z 49.6 -12.6 37.0 70.8 | | V / 1.5 X 49.5 -12.6 36.9 70.0 | | V / 1.3 Y 54.0 -12.6 41.4 117.5 | 1500 V / 1.3 Z 52.6 -12.6 40.0 100.0 500 The frequency range was scanned from 30 MHz to 3.0GHz. All emissions not recorded were more Than 10 dB below the specified limit. Emissions from the EUT do not…

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