OXZSENTRY79Field Disturbance Sensor

PRECO ELECTRONICS 10335 W Emerald St. Boise, Idaho 83704 Phone: (208) 323-1000 Fax: (208) 323-1034 www.preco.com User Manual Statement The device under test is manufactured by the grantee (Preco Electonics, a Sensata Technologies company), and sold as an both OEM and after-market product, depending on customer needs. 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. Preco Electonics will supply this document to the reseller/distributor dictating what must be included in the end user’s manual for the commercial product. Model / FCC ID: OXZSENTRY79 IC: 20379-PREVIEW79 This device complies with Part 95, submart M of the FCC Rules and with Industry Canada license-exempt RSS standard(s). 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. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. FCC Radiation Exposure Statement RF Radiation Exposure Statement: This equipment complies with FCC RF Radiation exposure limits set forth for an uncontrolled environment. This device and its antenna must not be co-located or operating in conjunction with any other antenna or transmitter. This equipment should be installed and operated with a normally maintained separation distance of at least 20cm between the radiator and your body. Cet équipement est conforme aux normes d'exposition aux rayonnements RF de la FCC limites fixées pour un environnement non contrôlé. Cet appareil et son antenne ne doivent pas être situés ou fonctionner en conjonction avec une autre antenne ou un autre émetteur. Cet équipement doit être installé et utilisé avec une distance de séparation normalement maintenue d'au moins 20 cm entre le radiateur et votre corps." 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.

Willow Run (WR) Test Labs, Inc. 7117 Fieldcrest Dr., Brighton, Michigan 48116 USA Tel: (734) 252-9785, Fax: (734) 926-9785, e-mail: [email protected] Attn.:Certification and Engineering Bureau, Innovation, Science and Economic Development Canada 3701 Carling Avenue, Bldg. 94 Ottawa, Ontario K2H 8S2 Re: Certification for Preco Electronics Sentry 79 IC: 20379-PREVIEW79 If necessary, we have enclosed application materials for certification of Preco Electronics Sentry 79. It has been verified to comply with ISED RSS-251 version 2. Current Variants: There is only a single variant of the EUT, as tested. If there are any questions regarding the application or testing performed, please contact us at the above address or call (734) 252-9785, or e-mail [email protected]. Sincerely, Joseph D. Brunett Willow Run (WR) Test Labs, Inc. Willow Run (WR) Test Labs, Inc. 7117 Fieldcrest Dr., Brighton, Michigan 48116 USA Tel: (734) 252-9785, Fax: (734) 926-9785, e-mail: [email protected] Attn.:Federal Communications Commission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 Re: Certification for Preco Electronics Sentry 79 FCC ID: OXZSENTRY79 If necessary, we have enclosed application materials for certification of Preco Electronics Sentry 79. It has been verified to comply with CFR Title 47, Part 95 Subpart M. Current Variants: There is only a single variant of the EUT, as tested. If there are any questions regarding the application or testing performed, please contact us at the above address or call (734) 252-9785, or e-mail [email protected]. Sincerely, Joseph D. Brunett Willow Run (WR) Test Labs, Inc.

Willow Run (WR) Test Labs, Inc. 7117 Fieldcrest Dr., Brighton, Michigan 48116 USA Tel: (734) 252-9785, Fax: (734) 926-9785, e-mail: [email protected] Re: Certification for Preco Electronics FCC ID: OXZSENTRY79 IC: 20379-PREVIEW79 REQUEST FOR CONFIDENTIALITY Pursuant to USA FCC 47 CFR 0.457(d) and 0.459 and Canada IC RSP-100, Section 10, Preco Electronics requests that a part of the subject application be held confidential. Preco Electronics 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. ExhibitConf. TypeRational Exh 04 - Block DiagramPermanentIncludes proprietary internal oscillator information. Exh 05 - SchematicsPermanentIncludes proprietary design information Exh 10 - BOM + PlacementPermanentIncludes proprietary design information Exh 10 - Antenna SpecificationPermanentIncludes proprietary design information Exh 12 - Modes of OperationPermanentIncludes proprietary design information Long Term Confidentiality (Permanent):Preco Electronics requests that any exhibits listed above as permanently confidential be permanently withheld from public review. Wherein Long Term Confidentiality is not an option for specific exhibits with ISED, this request applies only to the FCC application for those exhibits. Short-Term Confidentiality (FCC Only):Preco Electronics requests that any exhibits selected above as short term confidential be withheld from public view for a period of days (noted above) from the date of the Grant of Equipment Authorization and prior to marketing. If there are any questions regarding the application or testing performed, please contact us at the above address or call (734) 252-9785, or e-mail [email protected]. Sincerely, Joseph D. Brunett Willow Run (WR) Test Labs, Inc.

Willow Run (WR) Test Labs, Inc. 7117 Fieldcrest Drive Brighton, MI 48116 Phone: (734) 252-9785, Fax (734) 926-9785 e-mail:[email protected] RF EXPOSURE CALCULATIONS Requirement: According to USA CFR 15 §1.1307 (b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. For Canada, RSS-102 sets out the requirements and measurement techniques used to evaluate radio frequency (RF) exposure compliance of radiocommunication apparatus designed to be used within the vicinity of the human body. Maximum Permissible Exposure Calculations: Summary: The EUT with all transmitters is compliant with both the FCC power density limit and the ISED Exposure Evaluation limits. 22-Mar-23 LevelUnitsJ. Brunett 61V/mMax All - Worst Case 1.0mW/cm23m Freq.Temp / Hum.EIRP (Pk)Exposure DutyEIRP (Avg)RS-102 2.5.2EUT Ant. Dim.Far-field DistanceS = 1mW/cm2 Dist.*S @ 20 cm DistanceMPE S Limit MHz o C, % dBmdBdBmEIRP dBm LimitcmmcmmW/cm2mW/cm2Comments R17847320, 3825.5-10.415.137.06.001.88 1.6 0.0061.000 R27900020, 3825.8-10.415.437.06.001.90 1.7 0.0071.000 R37943220, 3825.2-10.414.837.06.001.91 1.6 0.0061.000 #C1C2C3C4C5C6C7C8C9C10C11C12 R0 (ROW)(COLUMN)NOTE: MPE Power Density LimitMeas. Distance: S @ 20cm = EIRP – 10*log10( 4 * PI * 20^2) S = 1mW/cm2 Distance = sqrt(EIRPmW/(4*PI*1mW/cm2)) S = 1mW/cm2 Distance is an overestimated value when smaller than the EUT far field distance, and demonstrates compliance with FCC Part 1.1307, 1.1310, 2.1091, and 2.0193 requirements when the EUT is mounted into the motor vehicle. EUT is a Forward Looking radar used when the vehicle is in motion. R1-R3C10 R1-R3C9 R1-R3C9 Test Date: Test Engineer: MPE Field Strength LimitEUT Mode:

Sentry79 TOA Sensor Antenna Description The Sentry79 TOA sensor has two transmit and four receive antennas. The designations for the antennas are Tx1, Tx23, Rx1, Rx2, Rx3, and Rx4. Only one transmit antenna is used at a time. All four receive antennas are used all the time. Each antenna is a PCB trace microstrip series-fed patch array style antenna, with a center frequency of 79 GHz and an operable bandwidth of several GHz. The radiation pattern of each antenna resembles a fan beam, which is wide in azimuth and narrow in elevation. The peak gain of the Tx1, Rx1, Rx2, Rx3, and Rx4 antennas is 9.5 dBi. The gain of the Tx23 antenna is 12.5 dBi. NOTE: All radio report measurements are performed radiated and therefore additional antenna gain documentation is not required.

Amber Helm Development L.C. 92723 Michigan Hwy-152 Sister Lakes, Michigan 49047 USA Tel: 888-847-8027 PRST79-WR2308TX Issued:April 22, 2023 EMC Test Report regarding USA: CFR Title 47, Part 95 Subpart M(Emissions) Canada:ISED RSS-251 version 2(Emissions) for Sentry 79 Category: FMCW Radar Judgments: FCC Part 95M and ISED RSS-251v2 Compliant Testing Completed: March 30, 2023 TESTING NVLAP LAB CODE 200129-0 Prepared for: Preco Electronics 10335 W Emerald St, Boise Idaho 83704 Phone: +1 (208) 323-7132, Fax: Contact: Dale Hessing, [email protected] Data Rec./Rev. by: Rpt. Auth. by: Dr. Joseph Brunett, EMC-002790-NEDr. Joseph Brunett, EMC-002790-NE Rpt. Prep./Rev. by:Date of Issue:April 22, 2023 John Nantz A copy of this report will remain on file until May 2033.Page 1 of 21 Date: April 22, 2023Prepared For: Preco ElectronicsReport No.: PRST79-WR2308TX Revision History Rev. No.DateDetailsRevised By r0April 22, 2023Initial Release.J. Brunett r1May 5, 2023Minor typo corrections.J. Brunett r2May 12, 2023Add ppm stability detail.J. Brunett Contents Revision History2 Table of Contents2 1 Test Report Scope and Limitations4 1.1 Laboratory Authorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1.2 Report Retention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1.3 Subcontracted Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1.4 Test Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1.5 Limitation of Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1.6 Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1.7 Endorsements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1.8 Test Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.9 Traceability and Equipment Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 2 Test Specifications and Procedures6 2.1 Test Specification and General Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 3 Configuration and Identification of the Equipment Under Test7 3.1 Description and Declarations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 3.1.1EUT Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 3.1.2Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 3.1.3Variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 3.1.4Test Samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 3.1.5Functional Exerciser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 3.1.6Modifications Made . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 3.1.7Production Intent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 3.1.8Declared Exemptions and Additional Product Notes . . . . . . . . . . . . . . . . . . . . . . . .9 4 Emissions10 4.1 General Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.1.1Radiated Test Setup and Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.1.2Conducted Emissions Test Setup and Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1.3Power Supply Variation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 Intentional Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.2.1Fundamental Emission Pulsed Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.2.2Fundamental Emission Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.2.3Fundamental Emission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.3 Unintentional Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.3.1Transmit Chain Spurious Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5 Measurement Uncertainty and Accreditation Documents21 Amber Helm Development L.C., 92723 Michigan Hwy-152, Sister Lakes, Michigan 49047 USAPage 2 of 21 Date: April 22, 2023Prepared For: Preco ElectronicsReport No.: PRST79-WR2308TX List of Tables 1Test Site List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 2Equipment List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 3EUT Declarations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 4Pulsed Emission Characteristics (Duty Cycle). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5Intentional Emission Bandwidth.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6Fundamental Radiated Emissions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7Transmit Chain Spurious Emissions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 7Transmit Chain Spurious Emissions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8Measurement Uncertainty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 List of Figures 1Photos of EUT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 2EUT Test Configuration Diagram. . . . . . . . . . . . . . . . . . . …

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