SGDWLR01Receiver for Wireless Microphone

INTERTEK TESTING SERVICE Report no.: 0415832 Equipment Photographs Model : MKA381 (External) FCC ID: SGDWLR01 INTERTEK TESTING SERVICE Report no.: 0415832 Equipment Photographs Model : MKA381 (External) FCC ID: SGDWLR01 INTERTEK TESTING SERVICE Report no.: 0415832 Equipment Photographs Model : MKA381 (External) FCC ID: SGDWLR01 INTERTEK TESTING SERVICE Report no.: 0415832 Equipment Photographs Model : MKA381 (External) FCC ID: SGDWLR01

FCC ID Label and Location Size: 1:1 FCC ID: SGDWLR01

INTERTEK TESTING SERVICE Report no.: 0415832 Equipment Photographs Model : MKA381 (Internal) FCC ID: SGDWLR01 INTERTEK TESTING SERVICE Report no.: 0415832 Equipment Photographs Model : MKA381 (Internal) FCC ID: SGDWLR01 INTERTEK TESTING SERVICE Report no.: 0415832 Equipment Photographs Model : MKA381 (Internal) FCC ID: SGDWLR01 INTERTEK TESTING SERVICE Report no.: 0415832 Equipment Photographs Model : MKA381 (Internal) FCC ID: SGDWLR01 INTERTEK TESTING SERVICE Report no.: 0415832 Equipment Photographs Model : MKA381 (Internal) FCC ID: SGDWLR01

光日科技有限公司 SUNNY-TECH Electronic Co., Ltd MKA-381 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. MKA-381 RECEIVER PART The receiver is use the super heterodyne technology. The receiving frequency 171.045MHz and the local oscillation frequency 160.3449MHz (using crystal 53.4486MHz x 3) 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 AM/FM 1 CHIP RADIOS1A0426C02 1 INTROCUCTION The S1A0426C02 is a monolithic integrated circuit designed for radio cassette tape recorders, clock radios and headphone radios. FUNCTIONS FEATURES •Built-in AM/FM Switching Circuit •Wide operating supply voltage: V CC = 2V − 8.5V •Low current consumption (V CC = 3V) —FM: I CCQ = 5.3 mA (Typ) —AM: I CCQ = 3.4 mA (Typ) •High Power Audio Amplifier: 0.5W (typ) at V CC = 6V, •RL = 8Ω, THD = 10% ORDERING INFORMATION • AM/FM RF AMP• Local OSC • AM AGO Control• FM AFO Control • Audio Power AMP• Tuning Indicator • DC Volume• AM/FM IF AMP • FM Quadrature DET• AM DET • AUDIO MUTE DevicePackageOperating Temperature S1A0426C02-A0B030−SDIP−400−20°C − +70°C S1A0426C02-S0B028−SOP−375−20°C − +70°C 30−SDIP−400 28−SOP−375 S1A0426C02AM/FM 1 CHIP RADIO 2 BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS (Ta = 25°C) CharacteristicSymbolValueUnit Supply VoltageV CC 9V Power DissipationP D 1000mW Operating TemperatureT OPR −20 − +70°C Storage TemperatureT STG −40 − +125°C MUTEFM Disc NF VOL AM OSC AFC FM OSC REG OUT FM RF AMRF IN N.CFM RF IN RF GND FM/AM IF OUT GND AM OUT VCC AF IN AFC AGC AFC AGC IF GND TUNING METER FM IF IN AM IF IN BAND SELECT Ripple Filter DET OUT N.C 302928272625242322212019181716 123456789101112131415 (28)(27)(26)(25)(24)(23)(22)(21)(20)(19)(19)(17)(16)(15) PWR VOLFM/AM IF DET/AGC AM F/E FM F/E Tuning Meter (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14) NOTE: ( ) 28-SOP Package AM/FM 1 CHIP RADIOS1A0426C02 3 ELECTRICAL CHARACTERISTICS (V CC = 6 V, Ta = 25 °C, FM; ∆f = 22.5 kHz, fm = 1 kHz, AM; 30% Mod, unless otherwise specified) CharacteristicSymbolTest ConditionsMin.Typ.Max.Unit FM Quiescent Circuit CurrentI CCQ (1)V I = 0−7.014.0mA F/E Voltage GainG V (1)V I (1) = 40dBμ, fc = 100MHz, ∆f = 0323946dBμ Detect Output GainV O (1)V I (3) = 90dBμ, fi = 10.7MHz−26−20−14dBm IF-3 dB SensitivityV I (LIM) Vo(VI3) = 90dBμ, −3dB, fi = 10.7MHz−2432dB Total Harmonic DistortionTHD 1 V I (3) = 90dBμ, fi = 10.7MHz (∆f = 75kHz) −0.32.0% Meter Drive CurrentI M (1)V I (3) = 60dBμ , fi = 10.7MHz1.83.57.0mA AM Quiescent Circuit CurrentI CCQ (2)V I = 0−3.510.0mA F/E Voltage GainG V (2)V I (2) = 60dBμ, fc = 1660kHz, m = 0%152229dB IF Voltage GainG V (3)Vo(3) = −34dBm, fi = 455kHz142027dBμ AM Detect Output VoltageV O (2)V I (3) = 85dBμ, fi = 455kHz−26−20−14dBm Total Harmonic DistortionTHD 2 V I (2) = 95dBμ, fc = 1660kHz, Vcc = 7.8V−0.62.0% Meter Drive CurrentI M (2)V I (3) = 85dBμ, fi = 455kHz1.33.07.0mA AF Closed Loop Voltage GainG V (4)Vo(4) = 0dBm, f = 1kHz2731.536dB Total Harmonic DistortionTHD 3 Po = 50mW, f = 1kHz−0.32.5% Output PowerP O R L = 8Ω, THD = 10%, f = 1kHz0.40.5−W Mute LevelM L Po = mW, Vi(4) = 30dBm 1kHz, V1(3) = FF 81522dB S1A0426C02AM/FM 1 CHIP RADIO 4 APPLICATION CIRCUIT 0.47 μ F 6pF BPF ANT 150 Ω 8.2k Ω 50k Ω 4.7 μ F * 10.7MHz 100k Ω 1pF 22pF 18pF 2pF L1 L2 L3 L4 10 μ F 0.01μF 220 μ F 0.1 μ F 470 μ F 10 μ F 0.022 μ F 10 μ F 4.7 μ F 10 μ F 0.1 μ F 1k Ω D1 S1 BATT 10.7MHz 455kHz 330 Ω T1 2.2k Ω 100 pF 0.01 μ F AMFM S2 V R S1A0426C02 1 2 3 4 7 24 23 22 21 8 5 6 26 25 28 27 9 10 13 14 11 1219 16 18 17 20 15 30 29 C-F C-F * CDA 10.7MG 89-A (MURATA) (28) (27) (26) (25) (24) (23) (22) (21) (20) (19) (18) (17) (16) (15) (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) 0.1 μ F NOTE: ( ) 28-SOP Package

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 October 2, 2004 Zonik Industrial Co., Ltd. Rm.1404, Blk. A, Wah Seng Ind. Bldg., 14-18 Wong Chuk Yeung St., Fo Tan, Shatin, N.T., Hong Kong. Dear Jacob Lai: Enclosed you will find your file copy of a Part 15 report (FCC ID: SGDWLR01). 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 Enclosure FCC ID: SGDWLR01 • 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 ID: SGDWLR01) Superheterodyne Receiver WO# 0415832 TC/sa October 2, 2004 FCC ID: SGDWLR01 INTERTEK TESTING SERVICES FCC ID: SGDWLR01 i LIST OF EXHIBITS INTRODUCTION EXHIBIT 1 : General Description EXHIBIT 2: System Test Configuration EXHIBIT 3: Emission Results EXHIBIT 4: Equipment Photographs EXHIBIT 5: Product Labelling EXHIBIT 6: Technical Specifications EXHIBIT 7: Instruction Manual EXHIBIT 8: Miscellaneous Information INTERTEK TESTING SERVICES FCC ID: SGDWLR01 ii MEASUREMENT/TECHNICAL REPORT Zonik Industrial Co., Ltd. - MODEL: Memorex MKA381 FCC ID: SGDWLR01 This report concerns (check one:) Original Grant X Class II Change _____ Equipment Type: Superheterodyne Receiver (example: computer, printer, modem, etc.) 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. Transition Rules Request per 15.37? Yes No X If no, assumed Part 15, Subpart B for unintentional radiator - the new 47 CFR [12- 08-03 Edition] provision. Report prepared by: Billy Chow Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576, Castle Peak Road, Kowloon, Hong Kong Phone: 852-2173-8545 Fax: 852-2371-0914 INTERTEK TESTING SERVICES FCC ID: SGDWLR01 iii Table of Contents 1.0 General Description.................................................................................................. 2 1.1 Product Description .............................................................................................. 2 1.2 Related Submittal(s) Grants ................................................................................. 2 1.3 Test Methodology ................................................................................................. 3 1.4 Test Facility .......................................................................................................... 3 2.0 System Test Configuration ....................................................................................... 5 2.1 Justification........................................................................................................... 5 2.2 EUT Exercising Software...................................................................................... 5 2.3 Special Accessories ............................................................................................. 5 2.4 Equipment Modification ........................................................................................ 6 2.5 Support Equipment List and Description............................................................... 6 2.6 Measurement Uncertainty .................................................................................... 6 3.0 Emission Results ...................................................................................................... 8 3.1 Field Strength Calculation..................................................................................... 9 3.1 Field Strength Calculation (cont’d) ...................................................................... 10 3.2 Radiated Emission Configuration Photograph .................................................... 11 3.3 Radiated Emission Data .................................................................................... 12 3.4 Conducted Emission Configuration Photograph ............................................... 14 3.5 Conducted Emission Data ................................................................................. 16 4.0 Equipment Photographs .............................................................................................. 18 5.0 Product Labelling .......................................................................................................... 20 6.0 Technical Specifications ............................................................................................. 22 7.0 Instruction Manual ........................................................................................................ 24 8.0 Miscellaneous Information .......................................................................................... 26 8.1 Discussion of Pulse Desensitization ....................................................................... 27 8.2 Calculation of Average Factor................................................................................. 28 8.3 Emissions Test Procedures ................................................................…

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Report No.:0415832 Receiving Ctrl No.:NA PAGE 1 Tested By:Hong, Report No.:0415832 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement: x QP / + AV Meas Time: 1 s Subranges: 16 Acc Margin: 20dB Transducer No. Start Stop Name 21 9k 30M EW0698 0 10 20 30 40 50 60 70 80 90 dBuV 100 0.15 MHz 30 110 F15Q F15A Report No.:0415832 Receiving Ctrl No.:NA Tested By:Hong, Report No.:0415832 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement Results: no Results

INTERTEK TESTING SERVICE Report No:0415832 Configuration Photographs Worst-Case Radiated Emissions (Front View) Model : MKA381 Fig.1 FCC ID: SGDWLR01 INTERTEK TESTING SERVICE Report No:0415832 FCC ID: SGDWLR01 Configuration Photographs Worst-Case Radiated Emissions (Back View) Model : MKA381 Fig.2

INTERTEK TESTING SERVICE Report No:0415832 Configuration Photographs Worst-Case Line-Conducted Emissions (Front View) Model : MKA381 FCC ID: SGDWLR01 i INTERTEK TESTING SERVICE Report No:0415832 Configuration Photographs Worst-Case Line-Conducted Emissions (Back View) Model : MKA381 FCC ID: SGDWLR01 ii INTERTEK TESTING SERVICE Report No:0415832 Configuration Photographs Worst-Case Line-Conducted Emissions (Side View) Model : MKA381 FCC ID: SGDWLR01 iii