MRXG53MA4STire Pressure Monitoring Transmitter

The device under test is manufactured by the grantee (Schrader Electronics) and sold as an OEM product. Per 47 CFR 2.909, 2.927, 2.931, 2.1033, 15.15(b) etc..., the grantee must ensure the end-user has all applicable / appropriate operating instructions. When end-user instructions are required, as in the case of this product, the grantee must notify the OEM to notify the end- user. Schrader Electronics will supply this document to the reseller/distributor dictating what must be included in the end user’s manual for the commercial product. INFORMATION TO BE INCLUDED IN THE END USER'S MANUAL The following information (in blue) must be included in the end product user’s manual to ensure continued FCC and Industry Canada regulatory compliance. The ID numbers must be included in the manual if the device label is not readily accessible to the end user. The compliance paragraphs below must be included in the user's manual. ****************************************************************************** FCC ID: MRXG53MA4S IC: 2546A-G53MA4S 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. The term “IC:” before the radio certification number only signifies that Industry Canada technical specifications were met. ******************************************************************************

January 28, 2010 Federal Communications Commission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 Re: Certification for Schrader Transmitter Model/PN(s): G53MA4S FCC ID: MRXG53MA4S IC: 2546A-G53MA4S Please find enclosed application materials for certification of Schrader Transmitter. We tested it and found it to comply with FCC Part 15. If there are any questions regarding the application or testing performed, please contact me at the above address or call 734-483-4211, fax 734-647-2106, or e-mail [email protected]. Sincerely, Valdis V. Liepa Research Scientist

January 28, 2010 RE: ATCB008680 – Original Equipment & Single Certification Applications (model G53MA4S) FCC ID: MRXG53MA4S & IC: 2546A-G53MA4S for Schrader Electronics Ltd. The following is in response to the comments made on the above referenced application. 1. The IC listing letter (REL letter), the FCC agency letter and the IC agency letter were all signed on March 15, 2007. That is almost 3 years ago. My contract with ATCB runs for only 2 years and then it needs to be renewed. I believe this old date will be an issue with both the FCC and IC. Please provide these letters with a current date of signing on each letter. These are signed corporate documents without a date of withdrawal, and thus their age is irrelevant to their legality. Withdrawal dates are intentionally left off by some applicants to eliminate the necessity to repeat paperwork. As is clearly the case, Adrian Condon is still our principle contact with Schrader. 2. The IC contact letter has several problems with it. The company name at the top of the letter is not Tomkins AMG as shown on the IC application form (it is Schrader International). The company number shown below the text is not 2546A as shown on the IC application form (it is NI25720). The address on the bottom of the letter is not 10 Stymie Blvd., Brantford, ON N3T 5K3 (it is 3200 Parker Drive, St. Augustine, FL 32084). Please let me know whether you wish to proceed with this application without the IC contact letter or if you wish to submit a corrected letter (since this letter is still voluntary). Please note a revised and correct IC letter was provided in another exhibit. The one you note above was included in error, and has been removed from the exhibit. American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 January 28, 2010 RE: ATCB008680 – Original Equipment & Single Certification Applications (model G53MA4S) FCC ID: MRXG53MA4S & IC: 2546A-G53MA4S for Schrader Electronics Ltd. I have a few comments on this Application. Please do not put confidential information in your responses to these questions because the response letter will not be held confidential by the FCC. Depending on your answers there may be more questions. 1. The IC listing letter (REL letter), the FCC agency letter and the IC agency letter were all signed on March 15, 2007. That is almost 3 years ago. My contract with ATCB runs for only 2 years and then it needs to be renewed. I believe this old date will be an issue with both the FCC and IC. Please provide these letters with a current date of signing on each letter. 2. The IC contact letter has several problems with it. The company name at the top of the letter is not Tomkins AMG as shown on the IC application form (it is Schrader International). The company number shown below the text is not 2546A as shown on the IC application form (it is NI25720). The address on the bottom of the letter is not 10 Stymie Blvd., Brantford, ON N3T 5K3 (it is 3200 Parker Drive, St. Augustine, FL 32084). Please let me know whether you wish to proceed with this application without the IC contact letter or if you wish to submit a corrected letter (since this letter is still voluntary). 3. For Your Information - The frequency band 225-399.9 MHz is allocated for Government of Canada usage. There are different types of operations in different parts of this band of frequencies, including communications with aircraft and operations using high power transmitters. Besides avoiding the frequency bands of Table 1 of RSS-210 Issue 7, designers of low-power devices are strongly recommended to avoid wherever possible the entire 225 – 399.9 MHz band. Richard Fabina Examining Engineer mailto: [email protected] Phone: 703-635-2881 The items indicated above must be submitted before processing can continue on the above referenced application. Failure to provide the requested information may result in application  Page 2 January 28, 2010 termination. Correspondence should be considered part of the permanent submission and may be viewed from the Internet after a Grant of Equipment Authorization is issued. Please do not respond to this correspondence using the email reply button. In order for your response to be processed expeditiously, you must submit your documents through the AmericanTCB.com website. Also, please note that partial responses increase processing time and should not be submitted. Any questions about the content of this correspondence should be directed to the sender.

Federal Communications Commission Applications Processing Branch 7435 Oakland Mills Road Colombia, MD 21046 Re: Letter of Agency for FCC Compliance Testing Please be advised that Schrader Electronics authorizes Professor Valdis V. Liepa of the University of Michigan, Department of Electrical Engineering and Computer Science, Ann Arbor, Michigan, to act on our behalf in front of the Federal Communications Commission with respect to all matters relating to certification. Anti-Drug Abuse Certification: I further certify that no party (as defined in 1.2002 of CFR47, 1992) to this application, including myself, is subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti Drug Abuse Act of 1988, 21 U.S.C. 853(a). Dated this 15 day of March, 2007 By: ___________ _____________ __Adrian Condon (Signature) (Print name) Title: _EMC & Approvals Team Leader_ _____________ _ email: [email protected]_ On behalf of: ___ Schrader Electronics _______ (Company Name) Telephone: __ 0044 2894483073 ___

Re: Certification for Schrader Transmitter FCC ID: MRXG53MA4S IC: 2546A-G53MA4S REQUEST FOR CONFIDENTIALITY Pursuant to FCC 47 CRF 0.457(d) and 0.459 and IC RSP-100, Section 10, Schrader requests that a part of the subject application be held confidential. Schrader has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Type of Confidentiality Requested Exhibit Short Term Permanent (1) ID Label & Location Short Term Permanent (3) External Photos Short Term Permanent 1 (4) Block Diagram Short Term Permanent (5) Schematics Short Term Permanent (7) Test Setup Photos Short Term Permanent (8) User’s Manual Short Term Permanent 2 (9) Internal Photos Short Term Permanent (10) Parts List & Placement Short Term Permanent (11) RF Exposure Short Term Permanent (12) Description of Operation 1. Block Diagram includes internal oscillator frequency information that the manufacturer considers to be proprietary. 2. DUT is FULLY potted using a non-removable epoxy based material. Removal of potting material causes irreparable damage to internal circuitry. Photograph exhibits outline the half-clam-shell device before and after potting. Permanent Confidentiality: Schrader requests the exhibits listed above as permanently confidential be permanently withheld from public review. Short-Term Confidentiality (FCC Only): Schrader requests the exhibits selected above as short term confidential be withheld from public view for a period of 45 days from the date of the Grant of Equipment Authorization and prior to marketing. If there are any questions regarding this request, please contact me at the above address or call 734-483-4211, fax 734-647-2106 or e-mail [email protected]. Sincerely, Valdis V. Liepa, Research Scientist University of Michigan

The Tire Pressure Monitor System (TPMS) monitors tire air pressure in all tires and displays the information to the driver. The Tire Pressure Sensors (TPS) shall monitor the pressures and transmit the data to the receiver. The information is then sent to the driver on a display device mounted on or near the instrument panel. The tire air pressure is monitored in each of the wheels by a wheel- mounted tire pressure sensor unit. This data is then relayed via an RF data link to a receiver module located in the vehicle. The wheel- mounted sensor unit is an assembly consisting of the pressure sensor, related electronics, and power source.

Emergency Modes Consumer Use Modes Manufacturing & Service Modes Mode of Operation Explanati on Frequency of Transmission X Forced Transmission "Learn On recei p t of a p articular LF se q uence this Forced transmission allows the interro g ation of the sensor Forced Transmission as requested X Forced Transmission Learn Mode" (dealer / plant) On receipt of a particular LF sequence this Forced transmission allows the interrogation of the sensor in the vehicle factory or dealership Forced Transmission as requested X Low battery Transmitter in normal operation when a low battery flag has been set - wheel is rotating Transmission rate equal to D rive mode X Off Mode Part is in an off state, No transmissions, Exit by LF or ∆ P No transmissions X Stationary Mode No transmissions X Wake Mode First transmittion in normal operation - when wheel is rotating then moves into drive mode At the start of wheel rotati on X Drive Mode Transmitter in normal operation - wheel is rotating Transmission rate every 60secs X Pressure Re-Measure Mode Transmitter in normal operation and meassuresment sample which is less then 5 counts than the il Alarm transmission as required

University of Michigan Radiation Laboratory FCC Part 15, IC RSS-210/Gen - Test Report No. 417124-549 Page 1 of 14 The University of Michigan Radiation Laboratory 3228 EECS Building Ann Arbor, MI 48109-2122 Tel: (734) 764-0500 Fax: (734) 647-2106 Measured Radio Frequency Emissions From Schrader Electronics Limited Transmitter FCC ID: MRXG53MA4S IC: 2546A-G53MA4S Test Report No. 417124-549 January 28, 2010 Copyright © 2010 For: Schrader Electronics Limited 11 Technology Park, Belfast Road, Antrim BT41 1QS, Northern Ireland Contact: Adrian Condon, [email protected] Phone: +44 (0) 28 9448 3073 Fax: +44 (0) 28 9446 8440 Testing supervised by: Measurements made by: Valdis V. Liepa Report Approved by:__________________________ Valdis V. Liepa Test report written by: Joseph D. Brunett Research Scientist Summary Tests for compliance with FCC Regulations, CFR 47, Part 15 and with Industry Canada RSS-210/Gen, were performed on a Schrader, FCC ID: MRXG53MA4S, IC: 2546A-G53MA4S. This device under test (DUT) is subject to the rules and regulations as a Transmitter. In testing completed on January 28, 2010, the DUT tested met the allowed specifications for radiated emissions by 04 dB. Conducted emissions are not subject to regulation as the DUT is powered by a 3 VDC battery. University of Michigan Radiation Laboratory FCC Part 15, IC RSS-210/Gen - Test Report No. 417124-549 Page 2 of 14 Table of Contents 1. Introduction ...................................................................................................................................... 3 2. Equipment Used ............................................................................................................................... 3 3. Device Under Test ........................................................................................................................... 4 3.1 Description & Block Diagram .............................................................................................. 4 3.2 Variants & Samples .............................................................................................................. 4 3.3 Modes of Operation .............................................................................................................. 4 3.4 Exemptions ........................................................................................................................... 4 3.5 EMC Relevant Modifications ............................................................................................... 4 4. Emissions Limits .............................................................................................................................. 5 4.1 Radiated Emissions Limits .................................................................................................... 5 4.2 Power Line Conducted Emissions Limits ............................................................................. 5 5. Measurement Procedures ................................................................................................................. 6 5.1 Semi-Anechoic Chamber Radiated Emissions ...................................................................... 6 5.2 Outdoor Radiated Emissions ................................................................................................. 6 5.3 Radiated Field Computations ................................................................................................ 6 5.4 Indoor Power Line Conducted Emissions ............................................................................. 6 5.5 Supply Voltage Variation ...................................................................................................... 7 6. Test Results ...................................................................................................................................... 7 6.1 Radiated Emissions ............................................................................................................... 7 6.1.1 Correction for Pulse Operation ......................................................................................... 7 6.1.2 Emission Spectrum ........................................................................................................... 7 6.1.3 Emission Bandwidth ......................................................................................................... 7 6.1.4 Supply Voltage and Supply Voltage Variation ................................................................. 7 6.2 Conducted Emissions ............................................................................................................ 7 University of Michigan Radiation Laboratory FCC Part 15, IC RSS-210/Gen - Test Report No. 417124-549 Page 3 of 14 1. Introduction This Schrader Transmitter was tested for compliance with FCC Regulations, Part 15, adopted under Docket 87-389, April 18, 1989 as subsequently amended, and with Industry Canada RSS-210/Gen, Issue 7, June 2007. Tests were performed at the University of Michigan Radiation Laboratory Willow Run Test Range following the procedures described in ANSI C63.4-2003 "Methods of Measurement of Radio- Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz". The Site description and attenuation characteristics of the Open Site facility are on file with FCC Laboratory, Columbia, Maryland (FCC Reg. No: 91050) and with Industry Canada, Ottawa, ON (File Ref. No: IC 2057A-1). 2. Equipment Used The test equipment commonly used in our facility is listed in Table 2.1. Except where indicated as a pre- test, monitoring, or support device; all equipment listed below is a part of the University of Michigan Radiation Laboratory (UMRL) quality system. This quality system has been established to ensure all equipment has a clearly identifiable classification, calibration expiry date, and that all calibrations are traceable to national standards. Table 2.1 Test Equipment. Test I…

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