L25301Wireless Mic

FCC ID: L25301 REMRK: USER CAN NOT MODIFY THIS PRODUCT.

FCC ID: L25301 PHOTOGRAPH OF THE PRODUCT FRONT VIEW OF THE PRODUCT REAR VIEW OF THE PRODUCT

FCC ID:L25301 MADE IN CHINA This device complies with part 15 of the FCC Rules. 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.

FCC ID: L25301 BOTTOM VIEW OF THE DEVICE WITH FCC ID LABEL

FCC ID: L25301 PHOTOGRAPH OF THE PRODUCT INNER CIRCUIT TOP VIEW INNER CIRCUIT BOTTOM VIEW

FCC ID: L25301 Circuit Description The 49.844MHz TR oscillator drives the base of Q1 the final/buffer amplifier. The modulation provided by IC1 The output of Q1 has the matching network consisting of L1 and C3 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 50cm 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 3Volt (“AA” size battery x 2) primary storage cell.

Date: 2000-12-28 TEST REPORT Page 1 of 7 No.: WM100462 Law Man KitSteven TsangPatrick Wong Testing EngineerVerify byPatrick Wong for Managing Director APPLICANT: (CODE: SUT001) SUPREME TOYS (HONG KONG) LTD. Rm 907-9 9/Fl. Tower B, New Mandarin Plaza, 14 Science Museum Road, Tsim Sha Tsui East, Kowloon, Hong Kong. DATE OF SAMPLES RECEIVED:2000-11-15 SUBMITTED SAMPLE(S): 2 samples per model DATE OF TESTING: 2000-12-14 DESCRIPTION OF SAMPLE(S): A sample of product said to be: Product:WIRELESS MIC Manufacturer:MILLION INDUSTRIAL LTD. Model Number:301 Brand Name:SUPREME Rating: 3Vd.c.(“AA” size battery × 2) Origin:CHINA INVESTIGATIONS REQUESTED: Measurement to the relevant clauses of F.C.C. Rules and Regulations Part 15 Subpart C - Intentional Radiator. RESULT/ REMARK: Please see attached sheet(s). CONCLUSION: From the measurement data obtained, the tested sample was considered to have COMPLIED with the clause 15.235 of Federal Communications Commission Rules and Regulations Part 15. TEST EQUIPMENT AUDIT: Please see Appendix A Date: 2000-12-28 TEST REPORT Page 2 of 7 No.: WM100462 T E S T S U M M A R Y *** INTENTIONAL RADIATOR *** (1)Measurement of Emission of RF energy on the carrier frequency.........Satisfactory (2)Measurement of the out-of band emissions including harmonics...........Satisfactory (3)Measurement of Emission Within Band Edges......................................Satisfactory (4)Measurement of Line-Conducted Voltage onto AC Power Line............Not applicable T E S T D A T A Please refer to the attached result sheets. Date: 2000-12-28 TEST REPORT Page 3 of 7 No.: WM100462 *** INTENTIONAL RADIATOR *** (1) Measurement of Radiated Interference TEST REFERENCE:FCC Rules Part 15 Section 15.235(49.82-49.90 MHz) TEST CONDITION:Normal TEST DATE:2000-12-14 Emission of RF energy on the carrier frequency -- 49.844MHz (PEAK VALUE) ================================================================== EmissionMeterPolarizationAntennaField Strength FCC Limit FrequencyReadingFactor(at 3m) MHzdB( μV)H-VdBdB(μV/m)μV/mμV/m 49.847.2H+15.062.21288.2100.0100000.0 ================================================================== Emission of RF energy on the carrier frequency -- 49.844MHz (AVERAGE VALUE) ================================================================== EmissionMeterPolarizationAntennaField Strength FCC Limit FrequencyReadingFactor(at 3m) MHzdB(μV)H-VdBdB(μV/m)μV/mμV/m 49.846.5H+15.061.51188.580.010000.0 ================================================================== ... to be continued Date: 2000-12-28 TEST REPORT Page 4 of 7 No.: WM100462 *** INTENTIONAL RADIATOR *** (1) Measurement of Radiated Interference . . Continued TEST REFERENCE:FCC Rules Part 15 Section 15.235(49.82-49.90 MHz) TEST CONDITION:Normal TEST DATE:2000-12-14 The out-of-band emissions, including harmonics (25-1000 MHz) (CISPR VALUE) ========================================================================= EmissionPolarizationMeterAntennaField Strength (at 3m)FCC FrequencyreadingfactorLimit (at 3m)@ MHzH-VdBdB( μ V) μ V/m μ V/m ##99.7<1.0+12.2<13.2<4.644150 149.5<1.0+9.8<10.8<3.544150 199.4<1.0+11.5<12.5<4.244150 249.2<1.0+15.9<16.9<7.046200 299.1<1.0+17.0<18.0<7.946200 348.9<1.0+17.2<18.2<8.146200 398.8<1.0+18.8<19.8<9.846200 448.6<1.0+19.7<20.7<10.846200 498.4<1.0+20.6<21.6<12.046200 548.3<1.0+22.2<23.2<14.546200 598.1<1.0+23.4<24.4<16.646200 648.0<1.0+23.5<24.5<16.846200 697.8<1.0+25.0<26.0<20.046200 747.7<1.0+26.3<27.3<23.246200 797.5<1.0+27.2<28.2<25.746200 847.3<1.0+26.6<27.6<24.046200 897.2<1.0+27.1<28.1<25.446200 947.0<1.0+28.0<29.0<28.246200 996.9<1.0+28.5<29.5<29.954500 ================================================================== =================SUMMARY================ All data is within limits ======================================= Broad-band Antennas were used and both polarizations of emissions were measured. polarizations at highest reading indicated as: H -- HorizontalV -- Vertical ======================================= Date: 2000-12-28 TEST REPORT Page 5 of 7 No.: WM100462 *** INTENTIONAL RADIATOR *** (2) Measurement of Emissions Within Band Edges TEST REFERENCE:FCC Rules Part 15 Section 15.235(49.82-49.90 MHz) TEST CONDITION:Normal TEST DATE:2000-12-14 RESULTS AND NOTES L: FCC Lower Band Edge..............................................................................-> 49.844MHz H: FCC Higher Band Edge.............................................................................-> 49.900MHz C: Unmodulated carrier at frequency..............................................................-> 49.86MHz D: No. of dB from unmodulated carrier..........................................................-> 44.90dB SPECTRUM ANALYZER SETTINGS Resolution bandwidth : 23.8KHz Frequency span: 10.0KHz/div No. of dB/div: 10.0dB/div FCC Limit Minimum No. of dB from unmodulated carrier required : 26.0dB ======================SUMMARY======================== All data is within limits =========================================================== Date: 2000-12-28 TEST REPORT Page 6 of 7 No.: WM100462 NOTES FOR THE RADIATION MEASUREMENT (1) Test site facility: Open field test site located at Taipo (Hong Kong) with a metal ground plane on filed with the FCC pursuant to section 2.948 of the FCC rules. (2) Distance between the EUT and measuring antenna: 3 meters. (3) Measuring instrumentations: CISPR Quasi-peak type field strength meter (25 MHz - 1000 MHz). 6 dB bandwidth set at 120KHz. Also, peak level of the fundamental emissions was measured in order to determine compliance with the 20dB peak to average limit specified in Section 15.35(b) of the FCC new Rules. (4) Measuring antenna: Broad band antenna for the frequency range 25-1000 MHz, connected with 10 meters coaxial cable. Cable loss of the coaxial cable included in the Antenna Factor for measurement data. The antenna are capable of measuring both horizontal and vertical polarizations. (5) Frequency range scanned: The frequency range from 25 MHz to 1000 MHz had…

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FCC ID: L25301 TEST SET UP PHOTOGRAPH OF THE PRODUCT