QDVWM-950Wireless Microphone

LABEL Format: This device complies with Part 74 of the FCC Rules FCC ID : QDVWM-950 LABEL Size: 15 x 21 mm LABEL Position:

Power set at the factory with no provision for user interface

Test Report ------------------------------------------------------------------------------ 1/42 Report No.: P4274305 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Report No. P4274305 Specifications FCC Part 74 – Certification Test Method ANSI C63.4 1992 Applicant NINGBO PROMIC TECHNOLOGY CO., LTD. Applicant No. 5, Ningbo Free Trade Zone, West Area, Ningbo, address Zhejiang, P.R.C. Items tested Wireless Microphone Product Name UHF Band Transmitter Model No. WM-950 (Sample # P42285) Results Compliance (As detailed within this report) Date 05/03/2002 (month / day / year) (Sample received) 06/12/2002 (month / day / year) (Test) Prepared by Project Engineer Authorized by General Manager (Frank Tsai) Issue date June 13, 2002 (month / day / year) Modifications None Tested by Training Research Co., Ltd. Office at 2, Lane 194, Huan-Ho Street, Hsichih, Taipei Hsien 221, Taiwan Anechoic Chamber at 2, Lane 194, Huan-Ho 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 : QDVWM-950 Test Report ------------------------------------------------------------------------------ 2/42 Report No.: P4274305 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 I NTRODUCTION .................................................................................... 5 1.2 D ESCRIPTION OF S UPPORT E QUIPMENT ............................................... 5 1.3 C ONFIGURATION OF T EST S ETUP ......................................................... 6 1.4 L OCATION OF THE M EASUREMENT S ITE .............................................. 7 1.5 G ENERAL T EST C ONDITION ................................................................. 7 CHAPTER 2 CONDUCTED EMISSION TEST......................................... 8 2.1 T EST CONDITION AND SETUP ................................................................ 8 2.2 L IST OF TEST I NSTRUMENT .................................................................. 8 2.3 C ONDUCTED E MISSION T EST R ESULT .................................................. 8 CHAPTER 3 POWER OUTPUT MEASUREMENT ................................. 9 3.1 R ULES AND S PECIFICATION L IMITS ..................................................... 9 3.2 T EST CONDITION AND SETUP ................................................................ 9 3.3 T EST CONDITION AND SETUP .............................................................. 11 3.4 M EASUREMENT R ESULT .................................................................... 12 CHAPTER 4 MODULATION CHARACTERISTICS MEASUREMENT .................................................................................................15 4.1 R ULES AND S PECIFICATION L IMITS ................................................... 15 4.2 T EST C ONFIGURATION & L IST OF T EST I NSTRUMENTS ...................... 15 4.3 L IST 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.: P4274305 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 CHAPTER 5 OCCUPIED BANDWIDTH MEASUREMENT................22 5.1 R ULES AND S PECIFICATION L IMITS ................................................... 22 5.2 T EST C ONFIGURATION & L IST OF T EST I NSTRUMENTS ...................... 22 5.3 L IST OF TEST I NSTRUMENT ................................................................ 22 5.4 M EASUREMENT P ROCEDURE ............................................................. 23 5.5 M EASUREMENT R ESULT .................................................................... 23 CHAPTER 6 FIELD STRENGTH OF SPURIOUS RADIATION MEASUREMENT .................................................................30 6.1 R ULES AND S PECIFICATION L IMITS ................................................... 30 6.2 M EASUREMENT C ONDITION & S ETUP ............................................... 30 6.3 L IST OF M EASUREMENT I NSTRUMENTS ............................................. 33 6.4 M EASUREMENT R ESULT : ................................................................... 34 CHAPTER 7 FREQUENCY STABILITY TOLERANCE MEASUREMENT .................................................................37 7.1 R ULES AND S PECIFICATION L IMITS ................................................... 37 7.2 M EASUREMENT C ONDITION & S ETUP WITH T EMPERATURE V ARIATION ............................................ 37 7.3 L IST OF M EASUREMENT I NSTRUMENTS WITH T EMPERATURE V ARIATION L IST OF TEST I NSTRUMENT ..................... 37 7.4 M EASUREMENT C ONFIGURATION OF T EMPERATURE V ARIATION T EST :...................................................... 38 7.5 M EASUREMENT R ESULT WITH T EMPERATURE V ARIATION ................ 39 7.6 M EASUREMENT C ONDITION & S ETUP WITH V OLTAGE V ARIATION .................................................... 41 7.7 CONFIGURATION OF VOLTAGE VARIATION TEST............................... 41 7.8 MEASUREMENT RESULT WITH VOLTAGE VARIATION........................ 42 Test Report ------------------------------------------------------------------------------ 4/42 Report No.: P4274305 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 …

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Test Setup Photos ------------------------------------------------------------------------- 1/2 FCC ID: QDVWM-950 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Radiated Test Setup Placement: (Photographs, X-axis) Test Setup Photos ------------------------------------------------------------------------- 2/2 FCC ID: QDVWM-950 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Radiated Test Setup Placement: (Photographs, Y-axis)