INGMH-750850Wireless Microphone

LABEL Format: This device complies with Part 74 of the FCC Rules FCC ID : INGMH-750850 LABEL Size: 30 X 20 mm LABEL Position:

TUNE UP PROCEDURE of Mh-850 1-1 Frequency adjustment 1. Connect the L210 with the frequency counter. 2. Connect the C113 with the digital DC multimeter. 3. Adjust the VC102 to make the DC voltage exist between 0.5 ~ 4V. 4. Adjust the VC101. 5. Specification: TX frequency is ± 1KHz. 1-2 RF power test 1. Connect the L210 with the RF power meterRF impedance50Ù 2. Switch on the transmitter. 3. Check the RF power level at 10dBm ±1dBm 1-3 Deviation adjustment 1. Connect the L210 with the modulation meter. 2. Apply the audio signal 1KHz30mV to the MIC point. 3. Adjust the VR2. 4. Specification :22KHz ± 2K. 1-4 Tone key adjustment 1. Connect the L210 with the modulation meter. 2. Connect the transmitter with power supply at 2.5V ± 0.1V 3. adjust the VR301. 4. Specification: 6K ± 0.2KHz.

Test Report ----------------------------------------------------------------------------- 1/42 Report No.: T6474188 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Report No. T6474188 Specifications FCC Part 74 – Certification Test Method ANSI C63.4 1992 Applicant JTS PROFESSIONAL CO., LTD. Applicant No. 148, 9 th Industry Road, Ta-Li Industrial Park, address Ta-Li City, Taiwan, R.O.C. Items tested Wireless Microphone Model No. Mh-750, Mh-850 (Sample # T64188) Results Compliance (As detailed within this report) Date 12/26/2002 (month / day / year) (Sample received) 01/06/2003 (month / day / year) (Test) Prepared by Project Engineer Authorized by General Manager (Frank Tsai) Issue date January 29, 2003 (month / day / year) Modifications None Tested by Training Research Co., Ltd. Office at No. 255, Nanyang Street, Hsichih, Taipei Hsien 221, Taiwan Anechoic Chamber at No. 255, Nanyang Street, Hsichih, Taipei Hsien 221, Taiwan Conditions of issue: (1) This test report shall not be reproduced except in full, without written approval of TRC. And the test result contained within this report only relate to the sample submitted for testing. (2) This report must not be used by the client to claim product endorsement by NVLAP or nay agency of U.S. Government. FCC ID : INGMH-750850 Test Report ----------------------------------------------------------------------------- 2/42 Report No.: T6474188 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Contents CHAPTER 0 APPLICATION FOR CERTIFICATION.......................4 CHAPTER 1 GENERAL........................................................................5 1.1 INTRODUCTION.....................................................................................5 1.2 DESCRIPTION OF SUPPORT EQUIPMENT.................................................5 1.3 CONFIGURATION OF TEST SETUP..........................................................6 1.4 LOCATION OF THE MEASUREMENT SITE...............................................7 1.5 GENERAL TEST CONDITION..................................................................7 CHAPTER 2 CONDUCTED EMISSION TEST...................................8 2.1 TEST CONDITION AND SETUP.................................................................8 2.2 LIST OF TEST INSTRUMENT...................................................................8 2.3 CONDUCTED EMISSION TEST RESULT...................................................8 CHAPTER 3 POWER OUTPUT MEASUREMENT............................9 3.1 RULES AND SPECIFICATION LIMITS.......................................................9 3.2 TEST CONDITION AND SETUP.................................................................9 3.3 TEST CONDITION AND SETUP...............................................................11 3.4 MEASUREMENT RESULT.....................................................................12 CHAPTER 4 MODULATION CHARACTERISTICS MEASUREMENT .........................................................................................15 4.1 RULES AND SPECIFICATION LIMITS.....................................................15 4.2 TEST CONFIGURATION & LIST OF TEST INSTRUMENTS........................15 4.3 LIST OF TEST INSTRUMENT.................................................................16 4.4 FREQUENCY RESPONSE OF AUDIO MODULATION CIRCUIT AND LOW PASS FILTER MEASUREMENT CONDITION & SETUP....................16 4.5 MODULATION LIMITING MEASUREMENT CONDITION & SETUP...........19 Test Report ----------------------------------------------------------------------------- 3/42 Report No.: T6474188 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 CHAPTER 5 OCCUPIED BANDWIDTH MEASUREMENT............22 5.1 RULES AND SPECIFICATION LIMITS.....................................................22 5.2 TEST CONFIGURATION & LIST OF TEST INSTRUMENTS........................22 5.3 LIST OF TEST INSTRUMENT.................................................................22 5.4 MEASUREMENT PROCEDURE...............................................................23 5.5 MEASUREMENT RESULT.....................................................................23 CHAPTER 6 FIELD STRENGTH OF SPURIOUS RADIATION MEASUREMENT...........................................................30 6.1 RULES AND SPECIFICATION LIMITS.....................................................30 6.2 MEASUREMENT CONDITION & SETUP.................................................30 6.3 LIST OF MEASUREMENT INSTRUMENTS..............................................33 6.4 MEASUREMENT RESULT:....................................................................34 CHAPTER 7 FREQUENCY STABILITY TOLERANCE MEASUREMENT...........................................................37 7.1 RULES AND SPECIFICATION LIMITS.....................................................37 7.2 MEASUREMENT CONDITION & SETUP WITH TEMPERATURE VARIATION............................................37 7.3 LIST OF MEASUREMENT INSTRUMENTS WITH TEMPERATURE VARIATION LIST OF TEST INSTRUMENT......................37 7.4 MEASUREMENT CONFIGURATION OF TEMPERATURE VARIATION TEST:.......................................................38 7.5 MEASUREMENT RESULT WITH TEMPERATURE VARIATION.................39 7.6 MEASUREMENT CONDITION & SETUP WITH VOLTAGE VARIATION....................................................41 7.7 CONFIGURATION OF VOLTAGE VARIATION TEST................................41 7.8 MEASUREMENT RESULT WITH VOLTAGE VARIATION.........................42 Test Report ----------------------------------------------------------------------------- 4/42 Report No.: T6474188 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Chapter 0 Application for Certification 74.861( e )( 2 ) : Transmitters may be either crystal controlled or frequency synthesized. o crystal controlled x frequency synthesized 2.1033( c )( 1 ) : JTS PROFESSIONAL CO., LTD. – applicant and manufacturer 2.1033( c )( 2 ) : The equipment…

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Test Setup Photos ------------------------------------------------------------------------ 1/1 FCC ID: INGMH-750850 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Radiated Test Setup Placement: Front View of the Test Configuration Rear View of the Test Configuration