LSD72ATHandheld Garage Door Type RF Transmitter 418 MHz

microplus / microclick - transmitters Interference Information This equipment may interfere with radio communications, AM/FM radio and TV re- ception. Use the following suggestions to correct the interference: • Relocate the receiving antenna. • Increase the space between the equipment and transmitter receiver. • Connect the equipment into another outlet, diff erent from the transmitter receiver. • Consult a technician for help. This equipment has been certifi ed to comply with the limits for a class B computing device, pursuant to FCC Rules. To maintain compliance with FCC regulations, shielded cables must be used with this equipment. Operation with non-approved equipment or unshielded cables may result in interference to radio and TV reception. This Class [B] digital apparatus meets all requirements of the Canadian Interference- Causing Equipment Regulations. Cet appareil numrique de la classe [B] respecte toutesles exigences du Reglement sur le materiel brouilleur du Canada. FCC Compliance This device will provide reliable remote access control. Be aware of the following limitations: • This device complies with FCC Rules and Regulations, Part 15 and Canadian In- terference Causing Equipment Regulations. Because of this, they have limited transmitter power and limited range. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, (2) this device must accept any interference received, including interference that may cause undesired operation. • The receiving device cannot respond to more than one transmitted signal at a time. Radio signals near the receiver operating frequency may block the transmit- ter signal regardless of the code setting. If this occurs, the radio receiver may have to be repositioned. • Any changes or modifi cations may void compliance with FCC Rules and Regulations. DoorKing’s transmitters are ideal for applications that require RF wireless access. Users can remain comfortably inside their vehicle while activating the RF transmitter without having to use a keypad or card reader. When activated a data stream is sent to the remote SuperHet receiver. This data includes the transmitter serial number, facility code, and button code. In addition MicroPLUS transmitters have an encrypted sync-code that changes each time the transmitter is used. Interference Information This equipment may interfere with radio communications, AM/FM radio and TV re- ception. Use the following suggestions to correct the interference: • Relocate the receiving antenna. • Increase the space between the equipment and transmitter receiver. • Connect the equipment into another outlet, diff erent from the transmitter receiver. • Consult a technician for help. This equipment has been certifi ed to comply with the limits for a class B computing device, pursuant to FCC Rules. To maintain compliance with FCC regulations, shielded cables must be used with this equipment. Operation with non-approved equipment or unshielded cables may result in interference to radio and TV reception. This Class [B] digital apparatus meets all requirements of the Canadian Interference- Causing Equipment Regulations. Cet appareil numrique de la classe [B] respecte toutesles exigences du Reglement sur le materiel brouilleur du Canada. FCC Compliance This device will provide reliable remote access control. Be aware of the following limitations: • This device complies with FCC Rules and Regulations, Part 15 and Canadian In- terference Causing Equipment Regulations. Because of this, they have limited transmitter power and limited range. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, (2) this device must accept any interference received, including interference that may cause undesired operation. • The receiving device cannot respond to more than one transmitted signal at a time. Radio signals near the receiver operating frequency may block the transmit- ter signal regardless of the code setting. If this occurs, the radio receiver may have to be repositioned. • Any changes or modifi cations may void compliance with FCC Rules and Regulations. Interference Information This equipment may interfere with radio communications, AM/FM radio and TV re- ception. Use the following suggestions to correct the interference: • Relocate the receiving antenna. • Increase the space between the equipment and transmitter receiver. • Connect the equipment into another outlet, diff erent from the transmitter receiver. • Consult a technician for help. This equipment has been certifi ed to comply with the limits for a class B computing device, pursuant to FCC Rules. To maintain compliance with FCC regulations, shielded cables must be used with this equipment. Operation with non-approved equipment or unshielded cables may result in interference to radio and TV reception. This Class [B] digital apparatus meets all requirements of the Canadian Interference- Causing Equipment Regulations. Cet appareil numrique de la classe [B] respecte toutesles exigences du Reglement sur le materiel brouilleur du Canada. FCC Compliance This device will provide reliable remote access control. Be aware of the following limitations: • This device complies with FCC Rules and Regulations, Part 15 and Canadian In- terference Causing Equipment Regulations. Because of this, they have limited transmitter power and limited range. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, (2) this device must accept any interference received, including interference that may cause undesired operation. • The receiving device cannot respond to more than one transmitted signal at a time. Radio signals near the receiver operating frequency may block the transmit- ter signal regardless of the code setting. If this occurs, the radio receiver may have to be repositioned. • Any changes or modifi cations may void compliance with FCC Rules and…

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DOORKING SYSTEMS 120 Glasgow Avenue Inglewood, CA 90301  Tel. 800-826-7493  310-645-0023  Fax 310-641-1586  e-mail: [email protected]  www.doorking.com  DOORKING Inc. Model 8072A Block Diagram total access control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DOORKING SYSTEMS 120 Glasgow Avenue Inglewood, CA 90301  Tel. 800-826-7493  310-645-0023  Fax 310-641-1586  e-mail: [email protected]  www.doorking.com  DOORKING Inc. 7/8/2010 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Gentlemen: This letter is to comply with Section 0.457(d)(2)(i) and Section 0.459 pertaining to confidential material. Pertaining to FCC ID: LSD72AT DoorKing, Inc. does not require any exhibits provided to be held confidential. Sincerely, Patrick Kochie V.P. of Engineering Doorking, Inc.

DOORKING SYSTEMS 120 Glasgow Avenue Inglewood, CA 90301  Tel. 800-826-7493  310-645-0023  Fax 310-641-1586  e-mail: [email protected]  www.doorking.com  DOORKING Inc. Model 8072A Sample Label

DOORKING SYSTEMS 120 Glasgow Avenue Inglewood, CA 90301  Tel. 800-826-7493  310-645-0023  Fax 310-641-1586  e-mail: [email protected]  www.doorking.com  DOORKING Inc. Function Description of Model 8072A Handheld Garage Door Type Transmitter The transmitter consists of encoder chip, SAW stabilized RF oscillator, and a 12 volt battery to power the device. Encoder The processor/encoder chip is manufactured by Freescale Inc. The part number is MC68HC908JK1. The encoder is preprogrammed at Doorking with a serial number, which is used to later modulate the RF oscillator when the encoder is activated. The serial number is unique to each transmitter and is used to identify the transmitter. The output ( pins 19,18,17,16 ) of the encoder stays low, (RF oscillator off), until switch SW1 is closed. SW1 applies power to the entire transmitter. The encoder starts to run with the serial number and button data output in a pulse position data modulation scheme. A 1ms pulse in the middle of a 6ms data window is a transmitted data 0. A 1ms. pulse at the end of a 6ms data window is data 1. The output of the encoder turns on and off the RF oscillator at this rate. RF Oscillator/Antenna. The RF oscillator consists of a single transistor colpitts oscillator. L1,C5,C6 form the basic LC tank circuit. The oscillator is stabilized to 418MHz by SAW resonator S1. No tuning of the oscillator is needed in production. When the output of the encoder is high, the transistor is biased on and the circuit oscillates. When the encoder output is low the transistor is biased off and the oscillator does not oscillate. The oscillator is coupled to a stub antenna using L2. The stub antenna consists of a 1.75 inch length of printed circuit board etch. Battery/LED The transmitter is powered by a 12 volt battery, Duracell type MN21 or equivalent. The LED provides reverse battery circuit protection and transmitter operation indicator.

This report c written cons e TE S CERT #803 803.05 ontains a total of ent of CKC Laborat Handhe STING 3.01, 803.02, 5, 803.06 21 pages and ma tories, Inc. ADD eld Garage Te FCC This test rep testing perfo of ISO/IEC 1 CKC Laborato We strive t o sound, adapt our custome processes, bu ay be reproduced Door DENDUM TES e Door Typ ested to the C Part 15 Su RSS‐ 2 Report Date of i port bears th ormed herein 17025 under ories, Inc. o create long‐t tive, customer ers’ unique EM ut rather as th in full only. Partia King, I ST REPORT F pe RF Trans e following s bpart C Sect & 210 Version t No.: 90734‐ issue: July 2, 2 e accreditatio meets the tes the applicab term, trust ba r first testing MC challenges, e reason we a al reproduction m Inc. FOR 90734‐5 smitter 41 standards: tion 15.231 7 5A 2010 on symbol ind st and reporti ble scope of sed relations h services. We , not as an int are in business may only be done 5 18 MHz, 80 dicating that ing requireme EMC testing hips by provid embrace each terruption to . with the 072A the ents for ding h of set Page 2of 21 Report No.: 90734‐5A TABLE OF CONTENTS Administrative Information .......................................................................................................................... 3 Test Report Information ............................................................................................................................................ 3 Report Authorization ................................................................................................................................................. 3 Test Facility Information ............................................................................................................................................ 4 Site Registration & Accreditation Information .......................................................................................................... 4 Summary of Results ................................................................................................................................................... 5 Conditions During Testing ......................................................................................................................................... 5 Equipment Under Test ............................................................................................................................................... 6 Peripheral Devices ..................................................................................................................................................... 6 FCC Part 15 Subpart C ................................................................................................................................... 6 Temperature And Humidity During Testing............................................................................................................... 6 15.33(a) Frequency Ranges Tested ............................................................................................................................ 6 EUT Operating Frequency .......................................................................................................................................... 6 15.231(a)(1) General Requirements for Momentary Equipment .............................................................................. 7 15.231(b) Field Strength of Fundamental ................................................................................................................ 10 15.231(b) Field Strength of Spurious Emissions ...................................................................................................... 13 15.231(c) & RSS‐210 Occupied Bandwidth .............................................................................................................. 17 Supplemental Information .......................................................................................................................... 20 Measurement Uncertainty ...................................................................................................................................... 20 Emissions Test Details .............................................................................................................................................. 20 Page 3of 21 Report No.: 90734‐5A ADMINISTRATIVE INFORMATION Test Report Information REPORT PREPARED FOR: REPORT PREPARED BY: Door King, Inc. 120 Glasgow Avenue Inglewood, CA 90301 Joyce Walker CKC Laboratories, Inc. 5046 Sierra Pines Drive Mariposa, CA 95338 REPRESENTATIVE: Patrick Kochie Project Number: 90734 Customer Reference Number: 79234 DATE OF EQUIPMENT RECEIPT: April26, 2010 DATE(S) OF TESTING: April26‐ 27, 2010 Revision History Original: Testing of the Handheld Garage Door Type RF Transmitter 418 MHz, 8072A to FCC Part 15 Subpart C Section 15.231 and RSS‐210. Addendum A: To revise the test conditions on the Field Strength of Fundamental and Spurious Emissions. Report Authorization The test data contained in this report documents the observed testing parameters pertaining to and are relevant for only the sample equipment tested in the agreed upon operational mode(s) and configuration(s) as identified herein. Compliance assessment remains the client’s responsibility. This report may not be used to claim product endorsement by A2LA or any government agencies. This test report has been authorized for release under quality control from CKC Laboratories, Inc. Steve Behm Director of Quality Assurance & Engineering Services CKC Laboratories, Inc. Page 4of 21 Report No.: 90734‐5A Test Facility Information Our laboratories are configured to effectively test a wide variety of product types. CKC utilizes first class test equipment, anechoic chambers, data acquisition and information services to create accurate, repeatable and affordable test results. TEST LOCATION(S): CKC Laboratories, Inc. 110 Olinda Place Brea, CA 92823 Site Registration & Accreditation Information…

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