LL4UH76TX : UHF WIRELESS MICROPHONE

Ecen Electronics Co Ltd

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Application Details

Equipment Class: TNF - Licensed Non-Broadcast Transmitter Held to Face
Date of Grant: Nov 30, 2003
Application Purpose: Original Equipment
Date of Application: Nov 30, 2003
Equipment Note: TX : UHF WIRELESS MICROPHONE
Frequency Range: 622.00000000 - 806.00000000
Company: Ecen Electronics Co Ltd
Country: Taiwan

Documents & Files

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

External Photos

FCC ID: LL4UH76 Number1 FRONT SIDE OF EUT FCC ID: LL4UH76 Number2 REAR SIDE OF EUT

ID Label/Location Info

FCC ID: LL4UH76 UHF Wireless Microphone MODEL:UH-76 FCC ID:LL4UH76

Internal Photos

FCC ID: LL4UH76 Number 1 Mechanical construction FCC ID: LL4UH76 Number 2 Front side of main board FCC ID: LL4UH76 Number 3 Rear side of main board FCC ID: LL4UH76 Number 4 Front side of side board FCC ID: LL4UH76 Number 5 Rear side of side board FCC ID: LL4UH76 Number 6 Foundation of EUT

Operational Description

A wireless microphone system consists generally of three main components : an input source, a transmitter. The input source provides an audio signal to the transmitter. Th e radio wave has a constand amplitude and basic frquencey .the basic frequency is varied up and down modulated by the audio signal to create the corresponding radio signal. The deviation is function of the amplitude of the audio signal and is usually measured in (KHz).Typical values of deviation in wireless microphone system range from about FM 40 KHz depening on the operating frequencyband. The part of the process performed in the transmitter is “compression”In which the dynamic range of the audio signal is reduced or compressed,typically by a factor of 2:1. a potential dynamic range greater than 100dB. Handheld transmitters generally conceal the antennainside the bidy of the unit,or use the outer metal parts of the case as the antenna .in either design ,the antenna is rarely a ture 1/4 wave long(50Ω) in the microphone head. microphone power use the DC 9V battery in heanheld case.

Parts List/Tune Up Info

TX UHF (BOM) ITEMS QUANTITY NUMBERS SMD CAPACITOR 0603-100P 1 C101 SMD CAPACITOR 0603-56P 2 C104,C143 SMD CAPACITOR 0603-472P 2 C111,C124 SMD CAPACITOR 103P 6 C112,C141,C136,C137,C139,C140 SMD CAPACITOR 0603-8P 1 C130 SMD CAPACITOR 0603-36P 1 C131 SMD CAPACITOR 0603-68P 1 C144 SMD CAPACITOR 0603-3P 1 C118 SMD CAPACITOR 0603-10P 1 C114 SMD CAPACITOR 0603-102P 3 C132,C153,C161 SMD CAPACITOR 0603-103P 2 C150,C155 SMD CAPACITOR 0603-470P 1 C156 SMD CAPACITOR 0603-33P 1 C157 SMD CAPACITOR 0603-0.5P 1 C162 SMD DIODE DAN 217 2 D101,D103 SMD /LED® 1 D102 SMD TRANSISTOR 2SC2812 4 Q101,Q102,Q105,Q107 SMD TRANSISTOR 2SA1179 3 Q103,Q104,Q108 SMD TRANSISTOR K508 1 Q106 SMD TRANSISTOR 3082 2 Q109,Q110 SMD TRANSISTOR 3583 2 Q111,Q112 SMD/IC5218 1 IC101 SMD/NE572 1 IC102 SMD/78L05 1 IC103 SMD INDUCTOR 220NH 6 L101,L102,L103,L104,L106,L111 SMD CAPACITOR 0.47uf/25v-A 2 C105,C119 SMD CAPACITOR 0.1uf/25v-C 1 C129 SMD CAPACITOR 33uf/10v-C 1 C128 SMD CAPACITOR 47uf/10v-C 1 C116 SMD CAPACITOR 1uf/25v-A 2 C133,C134 SMD CAPACITOR 2.2uf/16v-A 19 C102,C103,C106,C107,C108,C109,C11 0, C113,C115,C117,C120,C121,C122,C12 5 C126,C127,C135,C138,C154 ITEMS QUANTITY NUMBERS SMD RESISTANCE 0603-1K 3 R101,R111,R112 SMD RESISTANCE 0603-18K 1 R102 SMD RESISTANCE 0603-10K 6 R103,R107,R116,R119,R122,R139 SMD RESISTANCE 0603-12K 6 R104,R114,R115,R117,R123,R143 SMD RESISTANCE 0603-2K2 2 R105,R148 SMD RESISTANCE 0603-100K 5 R,106,R113,R135,R138,R140 SMD RESISTANCE 0603-10M 2 R108,R120 SMD RESISTANCE 0603-33K 3 R109,R118,R137 SMD RESISTANCE 0603-22K 4 R110,R124,R127,R142 SMD RESISTANCE 0603-3K3 2 R121,R136 SMD RESISTANCE 0603-8K2 2 R125,R146 SMD RESISTANCE 0603-68K 3 R126,R128,R149 SMD RESISTANCE 0603-220R 4 R129,R147,R151,R152 SMD RESISTANCE 0603-330R 1 R130 SMD RESISTANCE 0603-4K7 1 R131 SMD RESISTANCE 0603-470K 1 R132 SMD RESISTANCE 10R 1 R133 SMD RESISTANCE 0603-560R 2 R134,R154 SMD RESISTANCE 0603-15K 2 R141,R145 SMD RESISTANCE 0603-47K 1 R144 SMD RESISTANCE 0603-5K6 3 R150,R153,R157 SMD RESISTANCE 0603-47R 2 R155,R159 SMD RESISTANCE 0603-100R 1 R156 SMD RESISTANCE 0603-470R 1 R158 SMD RESISTANCE 0603-10R 1 R160 SMD RESISTANCE 0603-OR 2 R201,R202 SMD VARIABLE VR10K-3 1 VR101 SMD VARIABLE VR100K-3 1 VR102 SMD VARIABLE VC3P-3 1 VC101 SMD VARIABLE VC10P-3 2 VC102,VC103 SMD INDUCTOR COIL 01N 1 CH104 SMD INDUCTOR COIL 02N 2 CH102,CH103 DIP DIODE SVC201 1 D104 SWITCH SW-DPDT 1 SW101 NTC TH5 K 1 TH101 CRYSTAL 32K 1 X102 CRYSTAL 1 X101

Test Report

FCC TEST REPORT Report No.: F310802 FCC TEST REPORT for FCC Part 74 Subpart H Equipment : TX : UHF Wireless Microphone Model No. : UH-76 FCC ID : LL4UH76 Filing Type : Certification Applicant : ECEN ELECTRONICS CO., LTD. No. 32-1, Lane 38, Li-dar St., Taiping 411, Taichung, Taiwan The test result refers exclusively to the test presented test model / sample. Without written approval of SPORTON International Inc., the test report shall not be reproduced except in full. Certificate or Test Report must not be used by the applicant to claim the product in this test report endorsement by NVLAP or any agency of U.S. government. SPORTON International Inc. 6F, No.106, Sec. 1, Hsin Tai Wu Rd., Hsi Chih, Taipei Hsien, Taiwan, R.O.C. SPORTON International Inc. TEL : 886-2-2696-2468 FAX : 886-2-2696-2255 FCC TEST REPORT Report No.: F310802 Table of Contents History of this test report..................................................................................................................ii CERTIFICATE OF COMPLIANCE........................................................................................................................1 1. General Description of Equipment under Test.............................................................................................2 1.1. Applicant..........................................................................................................................................................................................2 1.2. Manufacturer...................................................................................................................................................................................2 1.3. Basic Description of Equipment under Test....................................................................................................................................2 1.4. Feature of Equipment under Test...................................................................................................................................................2 2. REQUIREMENTS OF PROVISIONS................................................................................................................3 2.1. Definition.........................................................................................................................................................................................3 2.2. Frequencies Available.....................................................................................................................................................................3 2.3. Requirements for Radio Equipment on Certification.......................................................................................................................3 3. General Information of Test............................................................................................................................4 3.1. Test Facility.....................................................................................................................................................................................4 3.2. Standard for Methods of Measurement...........................................................................................................................................4 3.3. Test in Compliance with..................................................................................................................................................................4 3.4. Frequency Range Investigated.......................................................................................................................................................4 3.5. Test Distance..................................................................................................................................................................................4 3.6. Test Modes......................................................................................................................................................................................4 4. Report of Measurements and Examinations.................................................................................................5 4.1. OUTPUT POWER MEASUREMENT..............................................................................................................................................5 4.2. MODULATION CHARACTERISTICS.............................................................................................................................................6 4.3. OCCUPIED BANDWIDTH OF EMISSION....................................................................................................................................10 4.4. SPURIOUS EMISSIONS AT ANTENNA TERMINALS.................................................................................................................17 4.5. FIELD STRENGTH OF EMISSION...............................................................................................................................................24 4.6. FREQUENCY STABILITY MEASUREMENT................................................................................................................................36 5. EMI Suppression Component List...............................................................................................................41 6. Antenna Factor & Cable Loss......................................................................................................................42 7. List of Measuring Equipments Used...........................................................................................................43 8. Uncertainty of Test Site.................................................................................................................................44 SPORTON International Inc. FCC ID : LL4UH76 TEL : 886-2-2696-2468 Page No. : i FAX : 886-2-2696-2255 Issued Date : Mar. 20, 2003 FCC TEST REPORT Repo…

Text truncated - open the document above for the full version.

Test Setup Photos

FCC TEST REPORT Report No. : F310802 SPORTON International Inc. FCC ID : LL4UH76 TEL : 886-2-2696-2468 Page No. : 1 of 1 FAX : 886-2-2696-2255 Issued Date : Mar. 20, 2003 1.1. Photographs of Radiated Emission Test Configuration The photographs show the configuration that generates the maximum emission. FRONT VIEW REAR VIEW

Contact Information

Applicant

Henry Lo(General Manager)

[email protected]+886-4-2422-3369Fax: +886-4-2422-4360

Test Firm

Sporton International Inc.Kathy Lin

[email protected]886-2-2696-2468Fax: 886-2-2696-2255

Technical Specifications

#	Rule Parts	Frequency Range	Power Output	Emission	Tolerance
1	74	622 MHz - 806 MHz	10.00 mW	195K0F3	0.0050000000 %

Grant Notes

This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter.End-users must be provided with specific operating instructions for satisfying RF exposure compliance.