SGDMKA382Wireless Microphone

INTERTEK TESTING SERVICE Report no.: 04159512 Equipment Photographs Model : MKA382 (External) FCC ID: SGDMKA382 INTERTEK TESTING SERVICE Report no.: 04159512 Equipment Photographs Model : MKA382 (External) FCC ID: SGDMKA382 INTERTEK TESTING SERVICE Report no.: 04159512 Equipment Photographs Model : MKA382 (External) FCC ID: SGDMKA382

FCC ID Label and Location FCC ID: SGDMKA382 Size: 1:1

INTERTEK TESTING SERVICE Report no.: 04155912 Equipment Photographs Model : MKA382 (Internal) FCC ID: SGDMKA382 INTERTEK TESTING SERVICE Report no.: 04155912 Equipment Photographs Model : MKA382 (Internal) FCC ID: SGDMKA382 INTERTEK TESTING SERVICE Report no.: 04155912 Equipment Photographs Model : MKA382 (Internal) FCC ID: SGDMKA382 INTERTEK TESTING SERVICE Report no.: 04155912 Equipment Photographs Model : MKA382 (Internal) FCC ID: SGDMKA382 Equipment Photographs INTERTEK TESTING SERVICE Report no.: 04155912 Model : MKA382 (Internal) FCC ID: SGDMKA382 INTERTEK TESTING SERVICE Report no.: 04155912 Equipment Photographs Model : MKA382 (Internal) FCC ID: SGDMKA382

光日科技有限公司 SUNNY-TECH Electronic Co., Ltd MKA-382 MICROPHONE PART The wireless microphone is use the frequency modulation. The voice signal is through the microphone and microphone amplifier (Q1) apply to the modulator, the oscillation frequency is vary in accordance with the characteristics of the voice signal. Base the characteristics of this VARACTOR DIODE MODULATOR, the oscillation frequency will be shift 20kHz from the frequency of crystal. The LC B.P.F. (L2, C9) is capturing the 10 order harmonic of the oscillation frequency. This signal is apply to the 1 st , 2 nd RF amplifier and the output stage to transmitting. Information on DC power (voltage, current into final RF stage) per 2.1033(c)(8): 5V, 31mA MKA-382 RECEIVER PART The receiver is use the super heterodyne technology. The receiving frequency and the local oscillation frequency is insert to the mixer, it is generate a large number of new frequency. In this circuit is use the 10.7MHz ceramic filter to select the intermediate frequency (IF). The IF signal is pass to the IF amplifier and the detector to recover to audio signal. The audio signal is amplified by the AF amplifier and output to the Power amplifier. 18/F., Po Shau Centre, 115 How Ming Street, Kwun Tong, Kowloon, Hong Kong. Tel.:27930223 Fax.:23421736 Fax.:23448928

MKA-382 ADJUSTMENT PROCEDURE Step Item Adjustment Procedure 1 TX frequency L1 Adjust L1 to obtain TX frequency 2 TX. L2, L3 Adjust L2, L3 to minimize the unwanted harmonic frequency 3 TX. L4, L6, L8 Adjust L4, L6, L8 to obtain not more than 50 μ W TX power 4 TX. Dev. N.A. 1. Insert an audio frequency (AF) -20dBm 2. Check the TX deviation not more than 2.5kHz 3. Check MIC modulation sensitiv ity, and it should be 2.5~10mV 5 RX L2, L3, L4 Adjust L2, L3, L4 to obtain demanded receiving sensitivity 6 RX L2, L3, L4 Adjust L2, L3, L4 to obtain demanded image frequency

Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2785 5487 Website: www.hk.intertek-etlsemko.com November 04, 2004 Zonik Industrial Co., Ltd. Rm. 1404, Blk. A, Wah Seng Ind. Bldg., 14-18 Wong Chuk Yeung St., Shatin, N.T., Hong Kong. Dear Mr. Jacob Lai: Enclosed you will find your file copy of a Part 90 report (FCC ID: SGDMKA382). For your reference, TCB will normally take another 15-20 days for reviewing the report. Approval will then be granted when no query is sorted. Please contact me if you have any questions regarding the enclosed material. Sincerely, Billy Chow Senior Supervisor Signed for and on behalf of Intertek Hong Kong ETL SEMKO Enclosure FCC ID: SGDMKA382 • The test results reported in this test report shall refer only to the sample actually tested and shall not refer or be deemed to refer to bulk from which such a sample may be said to have been obtained. • This report shall not be reproduced except in full without prior authorization from Intertek Testing Services Hong Kong Limited • For Terms And Conditions of the services, it can be provided upon request. • The evaluation data of the report will be kept for 3 years from the date of issuance. Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2785 5487 Website: www.hk.intertek-etlsemko.com Zonik Industrial Co., Ltd. Application For Certification FCC Part 90.265(b) (FCC ID: SGDMKA382) Wireless Microphone WO# 04159512 TC/sa November 04, 2004 FCC ID: SGDMKA382 INTERTEK TESTING SERVICES FCC ID: SGDMKA382 i LIST OF EXHIBITS INTRODUCTION EXHIBIT 1 : General Description EXHIBIT 2: System Test Configuration EXHIBIT 3: RF Power Output EXHIBIT 4: Modulation Characteristics EXHIBIT 5: Occupied Bandwidth EXHIBIT 6: Spurious Emission EXHIBIT 7: Frequency Stability EXHIBIT 8: Equipment Photographs EXHIBIT 9: Product Labelling EXHIBIT 10: Technical Specifications EXHIBIT 11: Instruction Manual INTERTEK TESTING SERVICES FCC ID: SGDMKA382 ii MEASUREMENT/TECHNICAL REPORT Zonik Industrial Co., Ltd. - MODEL: MKA382 FCC ID: SGDMKA382 This report concerns (check one:) Original Grant X Class II Change _____ Equipment Type: Wireless Microphone Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? Yes No X If yes, defer until: date Company Name agrees to notify the Commission by: date of the intended date of announcement of the product so that the grant can be issued on that date. If no, assumed Part 90, Subpart K for Special Frequencies or Frequency Bands - the new 47 CFR [10-01-03 Edition] provision. Report prepared by: Billy Chow Intertek Testing Services 2/F., Garment Centre, 576, Castle Peak Road, Kowloon, Hong Kong Phone: 852-2173-8545 Fax: 852-2371-0914 INTERTEK TESTING SERVICES FCC ID: SGDMKA382 iii Table of Contents 1.0 General Description................................................................................................. 3 1.1 Product Description............................................................................................. 3 1.2 Related Submittal(s) Grants ................................................................................ 3 1.3 Test Methodology................................................................................................ 4 1.4 Test Facility ......................................................................................................... 4 2.0 System Test Configuration ..................................................................................... 6 2.1 Justification ......................................................................................................... 6 2.2 EUT Exercising Software .................................................................................... 6 2.3 Special Accessories ............................................................................................ 6 2.4 Equipment Modification ....................................................................................... 7 2.5 Measurement Uncertainly ................................................................................... 7 2.6 Support Equipment List and Description ............................................................. 7 3.0 RF Power Output ...................................................................................................... 9 4.0 Modulation Characteristics ........................................................................................ 12 4.1 Modulation Frequency Response .................................................................... 13 4.2 Modulation Limiting .......................................................................................... 15 5.0 Occupied Bandwidth ............................................................................................. 18 6.0 Spurious Emission ................................................................................................ 20 6.1 Field Strength of Spurious Radiation ............................................................... 21 7.0 Frequency Stability ................................................................................................ 24 7.1 Frequency Stability – Voltage .......................................................................... 25 7.2 Frequency Stability – Temperature .................................................................. 27 8.0 Equipment Photographs ....................................................................................... 30 9.0 Product Labelling................................................................................................... 32 10.0 Technical Specifications....................................................................................... 34 11.0 Instruction Manual ................................................................................................. 36 INTERTEK TESTING SERVICES FCC ID: SGDMKA38…

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FCC ID: SGDMKA382 Modulation Limiting 05 1015202530 67 77 87 97 107 117 127 Modulation Input (dBSPL) Peak Frequency Deviation (kHz) at 500Hzat 1000Hzat 2500Hzat 5000Hz

FCC ID: SGDMKA382 Modulation Frequency Response 02468 101214 100 600 1100 1600 2100 2600 3100 3600 4100 4600 5100 Modulation Frequency (Hz) Frequency Deviation (kHz) FCC ID: SGDMKA382 Modulation Frequency Response 0 20406080 100120140 100 600 1100 1600 2100 2600 3100 3600 4100 4600 5100 Modulation Frequency (Hz) Modulation Index

INTERTEK TESTING SERVICE Report No:04159512 Configuration Photographs Worst-Case Radiated Emissions (Front View) Model : MKA382 Fig.1 FCC ID: SGDMKA382 INTERTEK TESTING SERVICE Report No:04159512 FCC ID: SGDMKA382 Configuration Photographs Worst-Case Radiated Emissions (Back View) Model : MKA382 Fig.2