N94TS1Triscanner stud finder

a. Manufacturer’s name and address:Zircon Corporation 1580 Dell Ave. Campbell, CA 95008 b. Applicant company and address:same c. Applicant contact name and title:Greg Heironimus Electrical Engineer d. Applicant telephone number:(408) 376-2819 e. Details of EUT: 1. Brief detailed description of EUT:A handheld battery operated electronic tool for finding wall studs and metallic objects. Also detects the presence of electrical wires. 2. "Official" name of EUT:VideoScanner 5.5 TriScanner 3. Model Number:none 4. Serial Number:none 5. Speed of the unit:10 MHz for microcontroller 80 kHz for metal detector 6. Person in charge of marketing this unit: Sharon Gee Director of Marketing

-1 - Mon Jan 04 11:12:32 1999

TriScanner: Metal Mode The metal detector sensor is a high Q resonant LC oscillator operating at 80 kHz whose gain is adjusted by the PIC processor to provide just enough gain to sustain oscillation. When operating in this "gain- starved" mode, the presence of metal will de-Q or load down the oscillator and reduce the level. This reduction of level is detected by the PIC processor and translated into LED segments on the display. The LC oscillator consists of the emitter-coupled pair Q3 and Q4, the inductor sensor coil and capacitor C4. Gain of the oscillator is controlled by the current source, Q2, which is controlled by the PWM voltage. Q2 acts as a high impedance buffer and level shifter for the PWM. Amplifier U3A provides a two times buffer for the oscillator. Q6 and C6 form an AC to DC converter which converts the 0 to 5V pk AC oscillation level to approximately 1.9 to 4.3 V DC signal.

Class B Digital Device and Intentional RadiatorClass B Digital Device and Intentional Radiator 15.209 Certification15.209 Certification FCC ID: N94TS1FCC ID: N94TS1 EMI TEST REPORTEMI TEST REPORT onon TriScannerTriScanner Prepared ForPrepared For ZirconZircon 1580 Dell Ave.1580 Dell Ave. Campbell, CA 95008Campbell, CA 95008 TEL: (408)746-2819TEL: (408)746-2819 Prepared byPrepared by Electronic Compliance Laboratories, Inc.Electronic Compliance Laboratories, Inc. 1249 Birchwood Drive1249 Birchwood Drive Sunnyvale, CA 94089Sunnyvale, CA 94089 408/747-1490408/747-1490 Test Report Number: A904003Test Report Number: A904003 Date of Test: December 28 and 29, 1998Date of Test: December 28 and 29, 1998 If this document is reproduced, it must be reproducedIf this document is reproduced, it must be reproduced in its entirety.in its entirety. A904003.DOC22 Table of Contents 1.0 Certification of Compliance .........................................................................3 2.0 General Information ......................................................................................4 3.0 Test Facility....................................................................................................5 4.0 Test equipment..............................................................................................5 5.0 Data Reporting Format..................................................................................6 6.0 Detector Functions........................................................................................6 7.0 Frequency Range of Investigation................................................................6 8.0 FCC Class Types...........................................................................................7 9.0 FCC Limits......................................................................................................8 10.0 Test Methods................................................................................................9 11.0 Labeling Requirements...............................................................................11 12.0 Summary of Measurements........................................................................12 APPENDIX A Data Plots.......................................................................................14 APPENDIX B Radiated Emissions.......................................................................18 APPENDIX C Test Set-up Photographs..............................................................20 A904003.DOC33 1.0 Certification of Compliance Model :TriScanner Description: Handheld battery operated tool for finding wall studs and metallic objects. Also detects the presence of electrical wires Applicant: ZIrcon Type of Test: FCC-15, Class B ( Certification) part 15.209 Date of Test: December 28 and 29, 1998 Tested By:Shawn McGuiness The above equipment was tested by Electronic Compliance Laboratories, Inc. and found to be in compliance with the requirements set forth in the FCC Rules and Regulations, Part 15, Subpart C (15.203, 15.205, 15.209). The equipment, in the configuration described in this report, shows that the maximum emission levels emanating from this equipment are within the compliance requirements. ____________________________________ Chris ByleckieDate Technical Director A904003.DOC44 2.0 General Information Applicant:Zircon Corporation 1580 Dell Ave. Campbell, CA 95008 Contact Person: Greg Heironimus Equipment Under Test: TriScanner FCC ID#:N94TS1 Report Number: A904003 Date of Test: December 28 and 29, 1998 Manufacturer: ZIrcon Type of Test:FCC part 15, Subpart C, (15.203, 15.205, 15.209), Class B Digital Device. Frequency Range:30 MHz to 1000 MHz - Radiated Emissions, Class B 80 kHz to 800 kHz Summary Pass/Fail: Passed 15.209 Radiated Emissions: The TriScanner meet all the requirements for Part 15.209 Class B limit. See Appendix A and B for Data Sheet and plots. A904003.DOC55 3.0 Test Facility Name:Electronic Compliance Laboratories Location:1249 Birchwood Drive Sunnyvale, CA 94089 Site Filing:A site description is on file at the Federal Communications Commission P.O. Box 429 Columbia, MD 21045 Types of Sites:Open Field Radiated and Indoor (Screen Room). Line Conducted: All sites are constructed and calibrated to meet ANSI C63.4-1994 requirements. Test facility is recognized by the National Voluntary Laboratory Accreditation Program for satisfactory compliance with criteria established in Title 15, Part 285 Code of Federal Regulations. NVLAP Code:20089 effective through: March 31, 1999 4.0Test Equipment The following list contains equipment used at EC Laboratories, Inc. for compliance testing. The equipment conforms to the American National Standard Specifications for Electromagnetic Interference and Field Strength Instrumentation from 10 kHz to 1000 MHz. DescriptionManufacturerS/NModel No.Cal. Due Date EMI ReceiverHP3325A001378456A5/3/99 Pre-ampHP313A068298447F5/10/99 Biconical AntennaEM677EM-69123/3/99 Log-Periodic AntennaEM858EM-69504/18/99 Active Rod AntennaEM168RVA-303/31/99 HP = Hewlett Packard EM = Electro Metrics The antenna used at the time the data was taken is indicated on each data page. The antenna height and polarization are also noted on the data pages. The calibration of the measuring instruments, including any accessories that may effect such calibration, are checked frequently to assure their accuracy. Adjustments are made and correction factors applied in accordance with instructions contained in the manual for the measuring instrument. A904003.DOC66 5.0Data Reporting Format The measurement results are expressed in accordance with FCC Part-15, Subpart B Class B limits, where applicable, are presented in tabular or graphical form. 6.0Detector Functions On any frequency or frequencies below or equal to 1000 MHz, the limits shown below are based on measuring equipment employing a CISPR quasi-peak detector function and related measurement bandwidths. On any frequency or frequenc…

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