HBW7451Transceiver

845 Larch Ave. Elmhurst, IL 60126 Phone 630.993.6306 Fax 630.530.6140 Email: [email protected] March 1, 2011 Federal Communications Commission EQUIPMENT APPROVAL SERVICES PO Box 358315 Pittsburgh, PA 15251-5315 Re: FCC ID: HBW7451 Request for Short Term Confidentiality In accordance with 47 C.F.R. Section 0.459, we, The Chamberlain Group, Inc., hereby request Short Term Confidentiality for external photos, test setup photos, internal photos and user’s manual. In support of the Request for Confidentiality, the following is stated: Enclosed within this application is technical information which we deem to be trade secrets and proprietary. If made public, the information might be used to our disadvantage. This product will not be released to production until the second quarter of 2011, so we make this request for Short Term Confidentiality to last for 45 days from date of grant. To assist in assuring that we receive the full value of our product and protect its competitive posture, we respectfully request this grant of confidentiality. Sincerely, THE CHAMBERLAIN GROUP, INC. Barbara Kelkhoff Manager, Regulatory Affairs

845 Larch Ave. Elmhurst, IL 60126 Phone 630.993.6306 Fax 630.530.6140 Email: [email protected] March 1, 2011 Federal Communications Commission EQUIPMENT APPROVAL SERVICES PO Box 358315 Pittsburgh, PA 15251-5315 Re: FCC ID: HBW7451 Request for Confidentiality In accordance with 47 C.F.R. Section 0.459, we, The Chamberlain Group, Inc., hereby request confidentiality for the block diagram, schematic and product description presented for certification. In support of the Request for Confidentiality, the following is stated: Enclosed within this application is technical information which we deem to be trade secrets and proprietary. If made public, the information might be used to our disadvantage. To assist in assuring that we receive the full value of our product and protect its competitive posture, we respectfully request this grant of confidentiality. Sincerely, THE CHAMBERLAIN GROUP, INC. Barbara Kelkhoff Manager, Regulatory Affairs

Artwork: 132LA2331-60-A 2.35" x 1.30" x .10" (W x H x R) Shown at 100% ECN: 04638 22 Dec 2010 PATENT# 7,071,850; 7,561,075 132B2331-6 MODEL DATE CHAMBERLAIN GROUP INC. ELMHURST, IL 60126, USA FCC ID: ASSEMBLED IN MEXICO IC: 2666A- 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.

Engineering Test Report No. 1100310-01 Measurement of RF Emissions from a GDM Garage Door Manager Transceiver For The Chamberlain Group 845 Larch Ave. Elmhurst, IL 60126 P.O. Number 870589 Date Tested February 7 through 10, 2011 Test Personnel Richard E. King Test Specification FCC "Code of Federal Regulations" Title 47, Part 15, Subpart B for receivers and Subpart C, Section 15.247 for Frequency Hopping Spread Spectrum Intentional Radiators Operating within the bands 902-928MHz Industry Canada RSS-GEN Industry Canada RSS-210 Test Report By: Richard E. King EMC Engineer Approved By: Raymond J. Klouda Registered Professional Engineer of Illinois - 44894 Elite Electronic Engineering, Inc. 1516 Centre Circle Downers Grove, IL 60515 Tel : (630) 495-9770 Fax: (630) 495-9785 www.elitetest.com Engineering Test Report No. 1100310-01 TABLE OF CONTENTS PARAGRAPH DESCRIPTION OF CONTENTS PAGE NO. THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE WRITTEN APPROVAL OF ELITE ELECTRONIC ENGINEERING INCORPORATED. Page 2 of 75 1. Introduction ................................................................................................................................................... 5 1.1 Scope of Tests ..................................................................................................................................... 5 1.2 Purpose ............................................................................................................................................... 5 1.3 Deviations, Additions and Exclusions .................................................................................................. 5 1.4 EMC Laboratory Identification ............................................................................................................. 5 1.5 Laboratory Conditions.......................................................................................................................... 5 2. Applicable Documents .................................................................................................................................. 5 3. EUT Setup and Operation ............................................................................................................................ 6 3.1 General Description ............................................................................................................................. 6 3.1.1 Power Input ..................................................................................................................................... 6 3.1.2 Peripheral Equipment ...................................................................................................................... 6 3.1.3 Signal Input/Output Leads ............................................................................................................... 6 3.1.4 Grounding ........................................................................................................................................ 6 3.2 Operational Mode ................................................................................................................................ 6 3.3 EUT Modifications ................................................................................................................................ 6 4. Test Facility and Test Instrumentation ......................................................................................................... 6 4.1 Shielded Enclosure .............................................................................................................................. 6 4.2 Test Instrumentation ............................................................................................................................ 6 4.3 Calibration Traceability ........................................................................................................................ 7 4.4 Measurement Uncertainty ................................................................................................................... 7 5. Test Procedures ........................................................................................................................................... 7 5.1 Powerline Conducted Emissions ......................................................................................................... 7 5.1.1 Requirements .................................................................................................................................. 7 5.1.2 Procedures ...................................................................................................................................... 7 5.1.3 Results............................................................................................................................................. 8 5.2 20dB Bandwidth ................................................................................................................................... 8 5.2.1 Requirement .................................................................................................................................... 8 5.2.2 Procedures ...................................................................................................................................... 8 5.2.3 Results............................................................................................................................................. 9 5.3 Carrier Frequency Separation ............................................................................................................. 9 5.3.1 Requirements .................................................................................................................................. 9 5.3.2 Procedures ...................................................................................................................................... 9 5.3.3 Results..........................................................................…

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Engineering Test Report No. 1100310-01 Page 19 of 75 Figure 2 Test Setup for Radiated Emissions, 30MHz to 1GHz – Horizontal Polarization Test Setup for Radiated Emissions, 30MHz to 1GHz – Vertical Polarization Engineering Test Report No. 1100310-01 Page 20 of 75 Figure 3 Test Setup for Radiated Emissions, Above 1GHz – Horizontal Polarization Test Setup for Radiated Emissions, Above 1GHz – Vertical Polarization