NHAAD200HWireless microphone

Appendix AFCC ID: NHAAD200H 1 OPERATIONS MANUALOPERATIONS MANUAL Appendix AFCC ID: NHAAD200H 2 Appendix AFCC ID: NHAAD200H 3 Appendix AFCC ID: NHAAD200H 4 Appendix AFCC ID: NHAAD200H 5

FCC ID: NHAAD200H External Photos

FCC ID: NHAAD200H 2.983 (f)2.983 (f)FCC ID: LabelFCC ID: Label NOTES: Label will be constructed of 0.02 inch aluminum as shown on the equipment with permanent adhesive. All information on the label will be etched or stamped. Both methods will exceed the expected lifetime of the equipment. The label will be large enough to allow all information to be legible. FCC ID: NHAAD200H

FCC ID: NHAAD200H Internal Photos FCC ID: NHAAD200H FCC ID: NHAAD200H Internal Photos: Board Detail _________________________________________________________________ _______ FCC ID: NHAAD200H

FCC ID: NHAAD200H Operational DescriptionOperational Description FCC ID: NHAAD200H

FCC ID: NHAAD200H Parts ListParts List ________________________________________________________________________ FCC ID: NHAAD200H 2.983 (d) (9)2.983 (d) (9)Tune-Up ProcedureTune-Up Procedure A. SW1 to OFF, VR1 to midrange and VR2 to midrange. B. Solder a 50 ohm coaxial cable (RG174) to the antenna terminal. C. Split this cable three ways to feed a spectrum analyzer, modulation analyzer and frequency counter. D. On the modulation analyzer select 50 uS deemphasis, 15 kHz LPF, FM mode and connect its audio output to an audio analyzer for distortion measurement. E. Solder a shielded cable to the preamplifier output. F. Connect the other end of the shielded cable to an AC voltmeter. G. Apply 9 volts to the battery terminals and switch SW1 on. Adjust C29, C33, C42 and L2 for maximum power. H. Adjust L1 for the proper frequency (nine times the crystal frequency) and repeat step G. I. Apply 30 mV of audio at 1 kHz to the microphone terminals. Adjust VR2 for 775 mV preamplifier output. J. Adjust VR1 for 12 kHz deviation. Adjust L2 and C29 for minimum distortion and maximum power.

FCC ID: NHAAD200H Schematic __________________________________________________________________

FCC ID: NHAAD200HFCC ID: NHAAD200H 1 Application for CertificationApplication for Certification For an RF TransmitterFor an RF Transmitter ADD ADD ElecoEleco, Inc., Inc. 7207 Rio Flora Pl.7207 Rio Flora Pl. Downey, CA 90241Downey, CA 90241 Product: Wireless MicrophoneProduct: Wireless Microphone Model: AD200HModel: AD200H FCC ID: NHAAD200HFCC ID: NHAAD200H REPORT # RC054780/90103REPORT # RC054780/90103 This report was prepared in accordance with the requirements of the FCC Rules and Regulations Part 2, Subpart J, 2.981 through 2.1005, Part 74.801, 74.861 and other applicable sections of the rules as indicated herein. Prepared By: Jake Tynes DNB Engineering, Inc.DNB Engineering, Inc. 3535 W. Commonwealth Ave.3535 W. Commonwealth Ave. Fullerton, CA 92833Fullerton, CA 92833 15 FEBRUARY 2000 FCC ID: NHAAD200HFCC ID: NHAAD200H 2 TABLE OF CONTENTSTABLE OF CONTENTS Section Title Sheet #Section Title Sheet # 1.0ADMINISTRATIVE DATA4 1.1Certifications and Qualifications4 1.2Measurement Repeatability Information4 Note: The paragraph numbers in this report follow the application section numbers found in the FEDERAL COMMUNICATIONS COMMISSION Rules and Regulations, Part 2, Subpart J for Type Certification of electronic equipment. 2.983 (a)Request for Certification5 2.983 (b)Equipment Description5 2.983 (c)Anticipated Production Quantity5 2.983 (d)Technical Description6 2.983 (d) (1)Type of Emissions6 2.983 (d) (2)Frequency Range6 2.983 (d) (3)Operating Power Level6 2.983 (d) (4)Maximum Power Allowed in Applicable Part(s) of the Rules6 2.983 (d) (5)Final RF Amplifier Input Power6 2.983 (d) (6)Function of all Active Circuit Devices7 2.983 (d) (7)Circuit Diagram8 2.983 (d) (8)Instruction Book8 2.983 (d) (9)Tune Up Procedure8 2.983 (d) (10)Description of Frequency Determining Circuitry9 2.983 (d) (11)Description of Suppression Circuitry9 2.983 (d) (12)Description of Digital Modulation System9 Figure 1: EUT Circuit Diagram10 Figure 2: EUT Block Diagram11 2.983 (e)Test Data12 2.983 (e) (1)Measurement of RF Power Output per 2.985 and 74.86112 Figure 3: Block Diagram for All Conducted Tests13 Figure 4: Equipment List14 Figure 5: Test Setup Photo for All Conducted Tests15 Figure 6: Plot of RF Power Output16 2.983 (e) (2)Measurement of Modulation Characteristics per 2.987 and 74.86117 - 19 Figure 7: Block Diagram of Modulation Characteristics Test20 Figure 8: Test Equipment Log21 Figure 9: Photo of Modulation Characteristics Calibration22 Figure 10: Photo of Modulation Characteristics Test 23 Figure 11: Test Data Sheet24 Figure 12: Frequency Response Curve25 2.983 (e) (3)Measurement of Occupied Bandwidth per 2.989 and 74.86126 Figure 13: Injected Audio Level27 Figure 14: Plot of Occupied Bandwith28 FCC ID: NHAAD200HFCC ID: NHAAD200H 3 TABLE OF CONTENTSTABLE OF CONTENTS Section Title Sheet #Section Title Sheet # 2.983 (e) (4)Measurement of Antenna Conducted Spurious Emissions per 2.991 and 74.86129 Figure 15: Highest Conducted Spurious Emissions30 Figure 16 – 18: Plots of Conducted Spurious Emissions31 - 33 2.983 (e) (5)Measurement of Radiated Spurious per 2.993 and 74.86134 - 35 Figure 19: RF Radiated Spurious Setup36 Figure 20: List of Radiated Spurious Test Equipment37 Figure 21: Photograph of Radiated Spurious Emissions Setup38 Figure 22: Photograph of Radiated Spurious Emissions Setup39 Figure 23: Photograph of Radiated Spurious Emissions Setup40 Figure 24: Photograph of Radiated Spurious Emissions Setup41 Figure 25: Radiated Spurious Emissions Test Data42 Figures 26-31: Plots of Radiated Spurious Emissions43 - 48 2.983 (e) (6)Measurement of Frequency Stability per 2.995 and 74.86149 Figure 32: Block Diagram of Frequency Stability Test50 Figure 33: Photograph of Frequency Stability Test Setup51 Figure 34: Photograph of Frequency Stability Test Setup52 Figure 35: Frequency Stability Test Data Sheet53 Figure 36: Frequency Stability Test Graph54 2.983 (e) (7)Frequency Spectrum to be Investigated per 2.99755 2.983 (f)FCC ID: Label55 2.983 (g)Photographs and/or Drawings Showing Equipment Construction Technique56 2.983 (h), (i)These sections are not applicable Figure 37: Wireless Microphone (Fully Assembled)57 Figure 38: Switch Panel58 Figure 39: Microphone Transmitter w/ Sleeves Removed A59 Figure 40: Microphone Transmitter w/ Sleeves Removed B60 Figure 41: Microphone Transmitter w/ Sleeves Removed C61 Figure 42: Board Detail 162 Figure 43: Board Detail 263 Figure 44: Microphone Pickup64 APPENDIX AOperating Manual1 - 5 FCC ID: NHAAD200HFCC ID: NHAAD200H 4 1.01.0ADMINISTRATIVE DATAADMINISTRATIVE DATA 1.11.1Certifications and QualificationsCertifications and Qualifications I certify that DNB Engineering, Inc conducted the tests performed in order to obtain the technical data presented in this application. Also, based on the results of the enclosed data, I have concluded that the equipment tested meets or exceeds the requirements of the Rules and Regulations governing this application. 1.21.2Measurement Repeatability InformationMeasurement Repeatability Information The test data presented in this report has been acquired using the guidelines set forth in FCC Part 2.981 through 2.1005, and Part 90. The test results presented in this document are valid only for the equipment identified herein under the test conditions described. Repeatability of these test results will only be achieved with identical measurement conditions. These conditions include: The same test distance, EUT Height, Measurement Site Characteristics, and the same EUT System Components. The system must have the same Interconnecting Cables arranged in identical placement to that in the test set- up, with the system and/or EUT functioning in the identical mode of operation (i.e. software and so on) as on the date of the test. Any deviation from the test conditions and the environment on the date of the test may result in measurement repeatability difficulties. All changes made to the EUT during the course of testing as identified in this test report mu…

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