PERWT010Walkie Talkie

FCC ID: PERWT010 PHOTOGRAPH OF THE PRODUCT FRONT VIEW OF THE PRODUCT REAR VIEW OF THE PRODUCT

FCC ID: PERWT010 PHOTOGRAPH OF THE PRODUCT INNER CIRCUIT TOP VIEW INNER CIRCUIT BOTTOM VIEW

FCC ID: PERWT010 Circuit Description The 49.86MHz crystal oscillator drives the base of Q3 the final/buffer amplifier. The modulation provided by Mic. The output of Q3 has the matching network consisting of L1 and C13 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 13cm long telescoping chrome over brass tubing. There is no external ground connection. The ground is only that of the printed circuit board. Electric current is supplied by a 9 Volt (“6F22” size battery x 1) primary battery

Date: 2001-06-15 TEST REPORT Page 1 of 19 No.: HM104995 FCC PART 15 SUBPART C CERTIFICATION REPORT FOR LOW POWER TRANSMITTER TEST REPORT No.: HM104995 Equipment Under Test [EUT]: WALKIE TALKIE Model Number: WT-010 Applicant: TSUEN SHING ENTERPRISES LTD. FCC ID : PERWT010 Date: 2001-06-15 TEST REPORT Page 2 of 19 No.: HM104995 CONTENT: Cover Page 1 of 19 Content Page 2-3 of 19 Conclusion Page 4 of 19 1.0 General Details 1.1 Test Laboratory Page 5 of 19 1.2 Applicant Details Page 5 of 19 Applicant HKSTC Code Number for Applicant Manufacturer 1.3 Equipment Under Test [EUT] Page 6 of 19 Description of EUT operation 1.4 Date of Order Page 6 of 19 1.5 Submitted Sample Page 6 of 19 1.6 Test Duration Page 6 of 19 1.7 Country of Origin Page 6 of 19 1.8 Additional Information of EUT Page 7 of 19 2.0 Technical Details 2.1 Investigations Requested Page 8 of 19 2.2 Test Standards and Results Summary Page 8 of 19 3.0 Test Results 3.1 Emission Page 9-14 of 19 3.2 Bandwidth Measurement Page 15-17 of 19 Date: 2001-06-15 TEST REPORT Page 3 of 19 No.: HM104995 Appendix A List of Measurement Equipment Page 18 of 19 Appendix B Photographs Page 19 of 19 Date: 2001-06-15 TEST REPORT Page 4 of 19 No.: HM104995 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 Kit Steven Tsang Patrick Wong Testing Engineer Verify by Patrick Wong for Managing Director Date: 2001-06-15 TEST REPORT Page 5 of 19 No.: HM104995 1.0 General Details 1.1 Test 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 1.2 Applicant Details Applicant TSUEN SHING ENTERPRISES LTD. Flat 8-10, 8/F., Kar Wah Industrial Building, Hei Yip Street, YLTL # 356, Yuen Long, N.T., Hong Kong. Telephone: 852 2474 0130 Fax: 852 2473 1801 HKSTC Code Number for Applicant TSS001 Manufacturer TSUEN SHING ENTERPRISES LTD. Flat 8-10, 8/F., Kar Wah Industrial Building, Hei Yip Street, YLTL #356, Yuen Long, N.T., Hong Kong Telephone: 852 2474 0130 Fax: 852 2473 1801 Date: 2001-06-15 TEST REPORT Page 6 of 19 No.: HM104995 1.3 Equipment Under Test [EUT] Description of Sample Product: Walkie Talkie Manufacturer: Tsuen Shing Enterprises Ltd. Brand Name: WALKIE TALKIES Model Number: WT-010 Input Voltage: 9Vd.c (“6F22” size battery x 1) 1.3.1 Description of EUT Operation The Equipment Under Test(EUT) is an Tsuen Shing Enterprises Ltd., 49.86MHz Walkie Talkie.The transmitter is a 2 button transmitter. The EUT continues to transmit while button is being pressed. It is voice transmission, Modulation by Mic. and tape is frequency modulation. 1.4 Date of Order 2001-06-07 1.5 Submitted Sample(s): 2 Samples per model 1.6 Test Duration 2001-06-13 1.7 Country of Origin N/A Date: 2001-06-15 TEST REPORT Page 7 of 19 No.: HM104995 1.8 Additional Information of EUT Submitted Not Available User Manual Part List Circuit Diagram Printed Circuit Board [PCB] Layout Rating Label Block diagram FCC ID Label Date: 2001-06-15 TEST REPORT Page 8 of 19 No.: HM104995 2.0 Technical Details 2.1 Investigations Requested Perform ElectroMagnetic Interference measurement in accordance with FCC 47CFR [Codes of Federal Regulations] Part 15 and ANSI C63.4:1992 for FCC Certification. 2.2 Test Standards and Results Summary Tables EMISSION Results Summary Test Condition Test Requirement Test Method Class / Test Result Severity Pass Failed N/A Field Strength of Fundamental Emissions & Spurious Emissions FCC 47CFR 15.235 ANSI C63.4:1992 N/A Radiated Emissions, 30MHz to 1GHz FCC 47CFR 15.209 ANSI C63.4:1992 Class B Conducted Emissions on AC, 0.45MHz to 30MHz FCC 47CFR 15.207 ANSI C63.4:1992 Class B Note: N/A - Not Applicable Date: 2001-06-15 TEST REPORT Page 9 of 19 No.: HM104995 3.0 Test Results 3.1 Emission 3.1.1 Radiated Emissions Test Requirement: FCC 47CFR 15.235 Test Method: ANSI C63.4: 1992 Test Date: 2001-06-13 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: 2001-06-15 TEST REPORT Page 10 of 19 No.: HM104995 Limits for Field Strength of Fundamental Emissions [FCC 47CFR 15.235]: Frequency Range of Fundamental Field Strength of Fundamental Emission [Peak] Field Strength of Fundamental Emission [Average] [MHz] [μV/m] [μV/m] 49.82-49.90 100,000 10,000 Results: Field Strength of Fundamental Emissions Peak Value Frequency Level @3m Correction Factor Field Strength Field Strength Limit ** @3m Antenna Polarity MHz dBμV dB/m dBμV/m μV/m μV/m 49.86 46.3 15.0 61.3 1161.4 100,000 Vertical According to FCC 47CFR15.35, the limit on the radio frequency emissions as measured using instrumentation with a peak detector function, corresponding to 20dB above the maximum permitted average limit for the frequency being investigated unless a different peak emission limit is otherwise specified in the rules. Remarks: *: Linear interpolations Correction Factor included Antenna Factor and Cable Attenuation. Calculated measurement uncertainty = 30MHz to 300MHz ±3.7dB 300MHz to 1GHz +3.0dB / -2.7dB Da…

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FCC ID: PERWT010 Limits for 26 dB Bandwidth of Fundamental Emission: Frequency Range 26dB Bandwidth FCC Limits * [MHz] [KHz] [KHz] 49.86 10.20 within 49.82-49.90 26dB Bandwidth of Fundamental Emission

FCC ID: PERWT010 TEST SET UP PHOTOGRAPH OF THE PRODUCT MEASUREMENT OF RADIATED EMISSION TEST SET UP