NLHRT3310Wireless Locating System

PHOTOGRAPH OF THE PRODUCT FRONT VIEW OF THE PRODUCT REAR VIEW OF THE PRODUCT

PHOTOGRAPH OF THE PRODUCT INNER CIRCUIT TOP VIEW INNER CIRCUIT BOTTOM VIEW

FCC ID: NLHRT3310 Circuit Description The 315MHz crystal oscillator drives the base of Q1 the final/buffer amplifier. The modulation provided by IC (U2 KS57P2304). The output of Q1 has the matching network consisting of L5 and C26 that limit the harmonic content and effect the proper coupling of the antenna to the output stage. Antenna, Ground and Power Source The antenna consists of a 8cm long metal antenna. There is no external ground connection. The ground is only that of the printed circuit board. Electric current is supplied by a 3 Volt “LIR2450” Rechargeable primary battery

Date: 2002-08-22 TEST REPORT Page 1 of 23 No.: HM108593 FCC PART 15 SUBPART C CERTIFICATION REPORT FOR LOW POWER TRANSMITTER TEST REPORT No.:HM108593 Equipment Under Test [EUT]:Finderz Keyperz Model Number:RT3310 Applicant:Crystal Field Ltd. FCC ID :NLHRT3310 Date: 2002-08-22 TEST REPORT Page 2 of 23 No.: HM108593 CONTENT: Cover Page 1 of 23 Content Page 2-3 of 23 Conclusion Page 4 of 23 1.0General Details 1.1Test Laboratory Page 5 of 23 1.2Applicant Details Page 5 of 23 Applicant HKSTC Code Number for Applicant Manufacturer 1.3Equipment Under Test [EUT] Page 6 of 23 Description of EUT operation 1.4Date of Order Page 6 of 23 1.5Submitted Sample Page 6 of 23 1.6Test Duration Page 6 of 23 1.7Country of Origin Page 6 of 23 1.8 Additional Information of EUT Page 7 of 23 2.0Technical Details 2.1Investigations Requested Page 8 of 23 2.2Test Standards and Results Summary Page 8 of 23 3.0Test Results 3.1Emission Page 9-15 of 23 3.2Bandwidth Measurement Page 16-17 of 23 Date: 2002-08-22 TEST REPORT Page 3 of 23 No.: HM108593 Appendix A List of Measurement Equipment Page 16 of 23 Appendix B Duty Cycle Correction During 100 msec Page 18-19 of 23 Appendix C Periodic Operation Page 21 of 23 Appendix D Photographs Page 22-23 of 23 Date: 2002-08-22 TEST REPORT Page 4 of 23 No.: HM108593 CONCLUSION The submitted product was deemed to have COMPLIED with the requirements of Federal Communications Commission [FCC] Rules and Regulations Part 15. The tests were performed in accordance with the standards described above and on Section 2.2 in this Test Report. Verify byPatrick Wong for Chief Executive Date: 2002-08-22 TEST REPORT Page 5 of 23 No.: HM108593 1.0General Details 1.1Test Laboratory The Hong Kong Standards and Testing Centre Ltd. EMC Laboratory 10 Dai Wang Street, Taipo Industrial Estate New Territories, Hong Kong Telephone:852 2666 1888 Fax:852 2664 4353 1.2Applicant Details Applicant CRYSTAL FIELD LTD. Unit 23, 16/F., Goldfield Ind. Ctr., 1 Sui Wo Road, Fotan, Shatin, N.T., Hong Kong. Telephone:852 2601 9282 Fax:852 2692 3197 HKSTC Code Number for ApplicantCRF001 Manufacturer CRYSTAL FIELD LTD. Unit 23, 16/F., Goldfield Ind. Ctr., 1 Sui Wo Road, Fotan, Shatin, N.T., Hong Kong. Telephone:852 2601 9282 Fax:852 2692 3197 Date: 2002-08-22 TEST REPORT Page 6 of 23 No.: HM108593 1.3Equipment Under Test [EUT] Description of Sample Product:Finderz Keyperz Manufacturer:Crystal Field Ltd. Brand Name:Atamia Model Number:RT3310 Input Voltage:3Vd.c (“LIR2450” rechargeable battery x 1) with jack The AC/DC Adapter used for the tests was provided by the applicant with the following details: Model: U075015D12, Input: 120Va.c. 60Hz 6.5W, Output: 7.5Vd.c. 150mA 1.3.1Description of EUT Operation The Equipment Under Test (EUT) is a Crystal Field Ltd., Finderz Keyperz. The EUT is to transmit RF signal while each button is being, Modulation by Data Code tape is pulses modulation. 1.4Date of Order 2002-08-10 1.5Submitted Sample(s): 2 Samples per model 1.6Test Duration 2002-08-21 to 2002-08-22 1.7Country of Origin China Date: 2002-08-22 TEST REPORT Page 7 of 23 No.: HM108593 1.8Additional Information of EUT SubmittedNot Available User Manual Part List Circuit Diagram Printed Circuit Board [PCB] Layout Block diagram FCC ID Label Date: 2002-08-22 TEST REPORT Page 8 of 23 No.: HM108593 2.0Technical Details 2.1Investigations Requested Perform ElectroMagnetic Interference measurement in accordance with FCC 47CFR [Codes of Federal Regulations] Part 15 and ANSI C63.4:2000 for FCC Certification. 2.2Test Standards and Results Summary Tables EMISSION Results Summary Test ConditionTest RequirementTest MethodClass /Test Result SeverityPassFailedN/A Field Strength of Fundamental Emissions & Spurious Emissions FCC 47CFR 15.231aANSI C63.4:2000N/A Radiated Emissions, 30MHz to 1GHz FCC 47CFR 15.209ANSI C63.4:2000Class B Radiated Emissions, 30MHz to 1GHz FCC 47CFR 15.109ANSI C63.4:2000Class B Conducted Emissions on AC, 0.15MHz to 30MHz FCC 47CFR 15.207ANSI C63.4:2000Class B Note: N/A - Not Applicable Date: 2002-08-22 TEST REPORT Page 9 of 23 No.: HM108593 3.0Test Results 3.1Emission 3.1.1Radiated Emissions Test Requirement:FCC 47CFR 15.231a Test Method:ANSI C63.4:2000 Test Date:2002-08-21 Mode of Operation:On mode Test Method: The sample was placed 0.8m above the ground plane on the OATS *. Measurements in both horizontal and vertical polarities were performed. During the test, each emission was maximized by: having the EUT continuously working, investigate all operating modes, rotated about all 3 axis (X, Y & Z) to obtain worst position, manipulating interconnecting cables, rotating turntable, varying antenna height from 1m to 4m in both horizontal and vertical polarization. The emissions worst-case are shown in Test Results of the following pages. *:OATS [Open Area Test Site] located at HKSTC with a metal ground plane on filed with the FCC pursuant to section 2.948 of the FCC rules, with Registration Number: 90657. Test Setup: EUT distance = 3m Pre -Amplifier Receiver Turn Table Computer Ground plane Date: 2002-08-22 TEST REPORT Page 10 of 23 No.: HM108593 Limits for Field Strength of Fundamental Emissions [FCC 47CFR 15.231a]: Frequency Range of Fundamental Field Strength of Fundamental Emission [Peak] Field Strength of Fundamental Emission [Average] [MHz][μV/m][μV/m] 40.66-40.701,000100 70-13050050 130-174500 to 1,500 *50 to 150 * 174-2601,500150 260-4701,500 to 5,000 *150 to 500 * Above 4705,000500 ** Linear interpolations Where F is the frequency in MHz, the formula for calculating the maximum permitted fundamental field strengths are as follows: for the band 130-174 MHz, μV/m at meters=56.81818(F)-6136.3636; for the band 260-470 MHz, μV/m at 3 meters =41.6667(F)-7083.3333. The maximum permissible unwanted emission level is 20dB below the maximum fundamental level. Results: CorrectionLimit **Antenna Factor @3mPolarity dB μ V/m μ V/m 314.9650.117.067.12264.660,400.1Horizontal Field Strength Measured dB μ V/m μ V/m Field Strength of Fun…

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1 Marianne Bosley To: [email protected] Subject: Metrak #12790 Crystal Field FCC ID: NLHRT3310 Hi Alice, The technical review has been completed and below is a question for your attention: 1. The limits to which the AC Line conducted measurements were compared are no longer the current limits listed in Section 15.207. This Rule has been amended to bring it into alignment with the CISPR 22 limits. As a result, the lower frequency range for testing is now 150 kHz, and no longer 450 kHz. Pursuant to Section 15.37(j), if the EUT is approved with the current test data, new data demonstrating compliance with the new limits, over the new frequency range, must be submitted by July 10, 2005, or the grant will no longer be valid. A Note Code will be placed on the grant to this effect. Alternatively, a new test, over the required frequency range, may be performed now, with data submitted, so that the grant will remain valid indefinitely, and no such condition will appear on the grant. Please indicate the choice of the applicant in this matter. Thanks. Regards, Marianne Marianne T. Bosley EMC Administrator 410-354-3300 X 412 [email protected]

TEST SET UP PHOTOGRAPH OF THE PRODUCT MEASUREMENT OF RADIATED EMISSION TEST SET UP