L5C0668TXTemperature Sensor Transmitter

Remark: Modifications not authorized by the manufacturer may void users authority to operate this device.

Marianne Bosley To:[email protected] Subject:RE: New Application for FCC ID: L5C0668TX "Ansen Electronics Company" I have reviewed the information and the administrative issues are below: 1. There was not a block diagram included. 2. The PO did not have a number on it. We have to have a number to include on the invoice. Please submit a revised PO. Marianne T. Bosley EMC Admi nistrator 410-354-3300, ext. 412 -----Origina l Message----- From:TCB INF O Sent:Friday, April 20, 2001 4:51 PM To:Marianne Bosley Subject:FW: New Application for FCC ID: L5C0668TX "Ansen Electronics Company" << File: L5C0668TX.zip >> -----Original Message----- From: Alice Wong To: [email protected] Cc: EED - Choy, Kitty Sent: 4/18/2001 3:55 AM Subject: New Application for FCC ID: L5C0668TX "Ansen Electronics Company" Dear Marianne, Please see attached file for New Application FCC ID: L5C0668TX "Ansen Electronics Company". Thanks. Best Regards Alice <<L5C0668TX.zip>>

FCC ID: L5C0668TX PHOTOGRAPH OF THE PRODUCT FRONT VIEW OF THE PRODUCT REAR VIEW OF THE PRODUCT

FCC ID: L5C0668TX LABEL LOCATION BOTTOM VIEW OF THE DEVICE WITH FCC ID LABEL

FCC ID: L5C0668TX PHOTOGRAPH OF THE PRODUCT INNER CIRCUIT TOP VIEW INNER CIRCUIT BOTTOM VIEW

Circuit Description The 434MHz crystal oscillator drives the base of Q1 the final/buffer amplifier. The modulation provided by IC. The output of Q1 has the matching network consisting of L3 and C8 that limit the harmonic content and effect the proper coupling of the antenna to the output stage. Antenna, Ground and Power Source There is no external antenna connected. There is no external ground connection. The ground is only that of the printed circuit board. Electric current is supplied by a 3Volt (“AAA” size battery x 2) primary storage cell.

Date: 2001-03-19 TEST REPORT Page 1 of 23 No.: HM104192 FCC PART 15 SUBPART C CERTIFICATION REPORT FOR LOW POWER TRANSMITTER TEST REPORT No.:HM104192 Equipment Under Test [EUT]:Remote Sensor Transmitter Model Number:0688 Applicant:Ansen Electronics Company FCC ID :L5C0668TX Date: 2001-03-19 TEST REPORT Page 2 of 23 No.: HM104192 CONTENT: Cover Page 1 of 23 Content Page 2-3 of 23 Conclusion Page 4 of 23 1.0 General 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 2.0 Technical Details 2.1Investigations Requested Page 8 of 23 2.2Test Standards and Results Summary Page 8 of 23 3.0 Test Results 3.1Emission Page 9-14 of 23 3.2Bandwidth Measurement Page 15-16 of 23 Date: 2001-03-19 TEST REPORT Page 3 of 23 No.: HM104192 Appendix A List of Measurement Equipment Page 17 of 23 Appendix B Duty Cycle Correction During 100 msec Page 18-19 of 23 Appendix C Periodic Operation Page 20-21 of 23 Appendix D Photographs Page 22-23 of 23 Date: 2001-03-19 TEST REPORT Page 4 of 23 No.: HM104192 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. Law Man KitSteven TsangPatrick Wong Testing EngineerVerify byPatrick Wong for Managing Director Date: 2001-03-19 TEST REPORT Page 5 of 23 No.: HM104192 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 Ansen Electronics Company. Room 78,2/F.,Sino Industrial Plaza, 9 Kai Cheung Road, Kowloon Bay, Kowloon, Hong Kong Telephone:852 27959473 Fax:852 27516577 HKSTC Code Number for ApplicantANE001 Manufacturer Ansen Electronics Company. Room 78,2/F.,Sino Industrial Plaza, 9 Kai Cheung Road, Kowloon Bay, Kowloon, Hong Kong Telephone:852 27959473 Fax:852 27516577 Date: 2001-03-19 TEST REPORT Page 6 of 23 No.: HM104192 1.3Equipment Under Test [EUT] Description of Sample Product:Remote Sensor Transmitter Manufacturer:Ansen Electronics Company. Brand Name:N/A Model Number:0668 Input Voltage:3Vd.c (“AAA” size battery x 2) 1.3.1Description of EUT Operation The Equipment Under Test (EUT) is an Ansen Electronics Company, 433.8MHz RF wireless remote sensor. The transmitter is an automatic transmitter. The EUT is to transmit RF signal while temperature measurement is changed. The EUT is for data transmission, Modulation by Data Code. Tape is pulses modulation. 1.4Date of Order 2001-02-26 1.5Submitted Sample(s): 4 Samples per model 1.6Test Duration 2001-03-15 1.7Country of Origin China Date: 2001-03-19 TEST REPORT Page 7 of 23 No.: HM104192 1.8Additional Information of EUT SubmittedNot Available User Manual Part List Circuit Diagram Printed Circuit Board [PCB] Layout Rating Label Block diagram FCC ID Label Date: 2001-03-19 TEST REPORT Page 8 of 23 No.: HM104192 2.0Technical Details 2.1Investigations Requested Perform ElectroMagnetic Interference measurement in accordance with FCC 47CFR [Codes of Federal Regulations] Part 15 and ANSI C63.4:1992 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 15.231eANSI C63.4:1992N/A Radiated Emissions, 30MHz to 1GHz FCC 47CFR 15.209ANSI C63.4:1992Class B Conducted Emissions on AC, 0.45MHz to 30MHz FCC 47CFR 15.207ANSI C63.4:1992Class B Note: N/A - Not Applicable Date: 2001-03-19 TEST REPORT Page 9 of 23 No.: HM104192 3.0Test Results 3.1Emission 3.1.1Radiated Emissions Test Requirement:FCC 47CFR 15.231e Test Method:ANSI C63.4:1992 Test Date:2001-03-15 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 polarizations. 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: 2001-03-19 TEST REPORT Page 10 of 23 No.: HM104192 Limits for Field Strength of Fundamental Emissions [FCC 47CFR 15.231e]: Frequency Range of Fundamental Field Strength of Fundamental Emissions Field Strength of Spurious Emissions [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 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, ìV/m at meters=22.72727(F)-2454.545; for the band 260-470 MHz, ìV/m at 3 meters =16.6667(F)-2833.3333. The maximum permissible unwanted emission level is 20dB below the maximum fundamental level. Results: Field Strength of Fundamental Emissions Peak Value FrequencyLevel @3mCorrection Factor Field Strength Field Strength Limit ** @3m Antenna Polarity MHz dBμV dB/m dBμV/mμV/mμV/m 433.864.222.286.420893.043966.8Vertical According to FCC 47CFR…

Text truncated - open the document above for the full version.

Marianne Bosley From:Alice Wong [[email protected]] Sent:Friday, April 27, 2001 6:30 AM To:Marianne Bosley Cc:EED - Choy, Kitty Subject:Re: Ansen Electronics FCC ID:L5C0668TX Dear Marianne, I have show the 10th harmonic on the revised report page 11, please see attached file. Thanks. Best Regards Alice ----- Original Message ----- From: "Marianne Bosley" <[email protected]> To: <[email protected]> Sent: Friday, April 27, 2001 1:31 AM Subject: Ansen Electronics FCC ID:L5C0668TX > Good afternoon Alice, > > Greg has completed the technical review for this application, and the > following question still remains. > > 1. Please specify what attempts were made to measure radiated spurious > emissions up through the 10th harmonic of the > fundamental emission? > > Please forward the answer to me. Have a good day. > > Marianne T. Bosley > EMC Administrator > 410-354-3300, ext. 412 > report.pdf

FCC ID: L5C0668TX BANDWIDTH

FCC ID: L5C0668TX FIGURE A: PULSE TRAIN FIGURE B: LONG PULSE FIGURE C: SHORT TRAIN

From FCC Part 15.231(e), Devices operated under the provisions of this section shall be provided with a means for automatically limiting operation so that the duration of each transmission shall not be greater than one second and the silent period between transmissions shall be at least 30 times the duration of the transmission bat in no case less than 10 seconds. Since the EUT of each transmission is 700 msec. so the silent period must not less than 21 sec. (700 msec x 30) Figure 1 and 2 show the duration of each transmission 700 msec and silent period. (30.3 sec.)

FCC ID: L5C0668TX TEST SET UP PHOTOGRAPH OF THE PRODUCT Measurement of Radiated Emission Test Set up