QDVWU-8256Wireless Microphone for Mobile A.V. Player & Amplifier System

Ningbo Promic Technology Co., Ltd.

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Application Details

Equipment Class: DXX - Part 15 Low Power Communication Device Transmitter
Date of Grant: Mar 29, 2010
Application Purpose: Original Equipment
Date of Application: Mar 29, 2010
Equipment Note: Wireless Microphone for Mobile A.V. Player & Amplifier System
Frequency Range: 904.85000000 - 925.35000000
Company: Ningbo Promic Technology Co., Ltd.
Country: China

Documents & Files

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Users Manual

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Block Diagram

LD VCO PLL LE DATA CLK CPU LCD LCD Driver VCO Buffer 4MHz FM MODULATION ON/OFF MUTE 32.768K Accentuation COMPRESSION AF AMP Delay Switch 5V Voltage Stabilizing RF AMP Power Control Pusher VOLTAGE TEST 9V LCD1U1_1 U1 AU2 AU3 Q8 BVD2 BVD1 BQ2 U3 U4 Y3 BQ1 BQ3 BQ5 Q9 Q4 Q1 Q4_1 Q2_1 U3_1

Cover Letter(s)

SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 Rev 2.0 2206 Ringwood Avenue San Jose, CA 95131 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Revision History Reason for Amendment (current / obsolete) From To Approved Date Initial Release (current) 1.0 1.0 Nov-14-2006 Revised wording (current) 1.0 2.0 Sept–25-2007 SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 2 Rev 2.0 March 26, 2010 To: SIEMIC, INC. 2206 Ringwood Avenue, San Jose, CA 95131 USA Dear Sir/Madam, Re: Project and Product Certification Representative Authorization Letter We, NINGBO PROMIC TECHNOLOGY CO., LTD. hereby authorize SIEMIC, INC. to act as a Certification Body for certifying for the following project(s): Product: Mobile A.V. Player & Amplifier System Model Name: WU-8256 We affirm that between SIEMIC and NINGBO PROMIC TECHNOLOGY CO., LTD. any difference in understanding, including test plan, measurement methods, applicable standards and relevant procedures and processes have been resolved prior to commencement of testing activities. Sincerely,

External Photos

General Appearance of the EUT

ID Label/Location Info

FCC ID Lable Location On EUT

Operational Description

WU-8256H Circuitry Description This unit is a wireless Transmitter, the circuit working are as follows: 1.Power source parts: The power supply is 9V battery, through switch delay, then provide 9V and 5V power to each circuit separately 2.MCU Control Part: Control LCD display, Phase loop lock and Mute separately 3.Voice Operate Part: The signal send to preamplifier circuit after receiving audio signal by moving-coil microphone, then processing by audio compression circuit, then making modulation through FM modulation circuit, to get carrier signal 4.RF Part: Through phrase loop lock and VCO generating high frequency signal 902-928MHz, and carrier signal which through buffer、pusher、RF power amplifier to get amplification of RF signal, transmitting by antanna

Schematics

1 2 3 4 5 6 78 ABCD 8 7 6 5 4 3 2 1 D CBA Title Number Revision Size A3 Date: 14-Mar-2009 Sheet of File: E:\ 石安伟文件 \ 新机种资料 \WU -25 6T.DD B Drawn By: C7 473P C16 10uF R1015K C10 100P 5V R164.7K L9 100nH C10 100P C40100P L1810nH VC3 L13 10nH VC4 L1422nH C422P 9V C37 470P R4322R Q9 Q4 2SA812 R3522R R2047K R1547K Q10 2SC2712 C455P R19820R 9V Q12 1N4148-SMT R1210K C410uF10V R9330R C310uF10V R252.7K R818K R747K R13330R R1033K Y34M R48470 C24103P C306P R49100 C32472P C23103P VC2 C9 39P R4410R C5 10uF10V R452.2K 12345678 910111213141516 U4 5V 5V R144.7K Q2 1N4148-SMT C5 2.2uF16V MIC V19V C5_1 103P R33.3K Q1 2SC2712 R5_1 330R R4 220K R9_13.3K R8_1 220K Q4_1 2SC2712 Y1 32.768KHZ R1110R C15105 Q2_1 2SA812 Q3_1 2SC2712 C12_122uF16V R12_1 100k R10_1100K R7_15.6K D1 1N4148-SMT B+ 9V S2S1 LCDS3LCDS2LCDS1LCDS0 LCDCOM3LCDCOM2LCDCOM1LCDCOM0 LCDCSLCDWRLCDDATA LCDCS LCDWR LCDDATA LCDCOM1 LCDCOM2 LCDCOM3 LCDS0 LCDS1 LCDS2 LCDS3 LCDCOM0 OSCI 15 OSCO 14 VSS 13 DATA 12 WR 11 RD 10 CS 9 SEG0 8 SEG1 7 SEG2 6 SEG3 5 SEG4 4 SEG5 3 SEG6 2 SEG7 1 SEG22 34 SEG21 35 SEG20 36 SEG19 37 SEG18 38 SEG17 39 SEG16 40 SEG15 41 SEG14 42 SEG13 43 SEG12 44 SEG11 45 SEG10 46 SEG9 47 SEG8 48 VLCD 16 VDD 17 IRQ 18 BZ 19 BZ 20 COM0 21 COM1 22 COM2 23 COM3 24 SEG31 25 SEG30 26 SEG29 27 SEG28 28 SEG27 29 SEG26 30 SEG25 31 SEG24 32 SEG23 33 U1_1HT1621B C291uF nc 1 Vcc 2 cs 3 sk 4 di 5 do 6 Vss 7 org 8 U5 93C46 5V R1610K 关 TO NE 5V 9V UP 5V 5 6 7 8 SW1B ESSLWM-900A 1 2 3 4 SW1A ESSLWM-900A R73.3K C2110uF16V VI 1 VO 2 GND 3 U3_1 5V C2_1 100uF10V C7_1 10uF10V R1215KR1115K R9 15K Y22M C2822P C2722P 123456789 1011121314 1516171819202122232425262728 U1 HT46R23 C28_110P C6 22P C27_1 10P Q8 2SC2712 R13_147K 关 TO NE R1 560R C4_1103P C110uF10V 2 1 4 5 63 U3 C39 100P VCO TXCP 1 W 2 VR6 10KB C39 470P LCD1

Test Report

DONGGUAN EMTEK CO., LTD. REPORT NO: ED10030026-1 FCC ID: QDVWU-8256 DATE: 03/26/2010 Page 1 of 23 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 15 SUBPART C REQUIREMENT OF Wireless Microphone for Mobile A.V. Player & Amplifier System MODEL No.: WU-8256 BRAND NAME: CALIFONE/PROMIC/URSOUND FCC ID: QDVWU-8256 REPORT NO: ED10030026-1 ISSUE DATE: March 26, 2010 Prepared for NINGBO PROMIC TECHNOLOGY CO., LTD. No.5, Ningbo Free Trade Zone, West Area, Ningbo, Zhejiang, China. Prepared by DONGGUAN EMTEK CO., LTD No.281, Guantai Road, Nancheng District, Dongguan, Guangdong, China TEL: 86-769-22807078 FAX: 86-769-22807079 DONGGUAN EMTEK CO., LTD. REPORT NO: ED10030026-1 FCC ID: QDVWU-8256 DATE: 03/26/2010 Page 2 of 23 VERIFICATION OF COMPLIANCE Applicant: NINGBO PROMIC TECHNOLOGY CO., LTD. No.5, Ningbo Free Trade Zone, West Area, Ningbo, Zhejiang, China. Product Description: Wireless Microphone for Mobile A.V. Player & Amplifier System Brand Name: CALIFONE/PROMIC/URSOUND Model Number: WU-8256 File Number: ED10030026-1 Date of Test: March 09, 2010 to March 26, 2010 We hereby certify that: The above equipment was tested by DONGGUAN EMTEK CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.4 (2003) and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15.249. The test results of this report relate only to the tested sample identified in this report. Approved By Nicol Lee / Q.A. Manager DONGGUAN EMTEK CO., LTD. DONGGUAN EMTEK CO., LTD. REPORT NO: ED10030026-1 FCC ID: QDVWU-8256 DATE: 03/26/2010 Page 3 of 23 Ta b l e o f C o n t e n t s 1. GENERAL INFORMATION ........................................................................................................... 4 1.1 PRODUCT DESCRIPTION................................................................................................................................4 1.2 RELATED SUBMITTAL(S) / GRANT (S) .......................................................................................................... 4 1.3 TEST METHODOLOGY................................................................................................................................... 4 1.4 SPECIAL ACCESSORIES................................................................................................................................. 4 1.5 EQUIPMENT MODIFICATIONS....................................................................................................................... 5 1.6 TEST FACILITY............................................................................................................................................. 5 2. SYSTEM TEST CONFIGURATION .............................................................................................. 6 2.1 EUT CONFIGURATION.................................................................................................................................. 6 2.2 EUT EXERCISE............................................................................................................................................. 6 2.3 TEST PROCEDURE......................................................................................................................................... 6 2.4 LIMITATION.................................................................................................................................................. 6 2.5 CONFIGURATION OF TESTED SYSTEM.......................................................................................................... 8 3. SUMMARY OF TEST RESULTS ................................................................................................... 9 4. DESCRIPTION OF TEST MODES................................................................................................. 9 5. RADIATED EMISSION TEST ......................................................................................................10 5.1 MEASUREMENT PROCEDURE...................................................................................................................... 10 5.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ............................................................................ 11 5.3 MEASUREMENT EQUIPMENT USED: ........................................................................................................... 12 5.4 OUT OF BAND RADIATED MEASUREMENT RESULT................................................................................... 12 5.5 RADIATED MEASUREMENT PHOTOS: ......................................................................................................... 16 6. BAND EDGE .................................................................................................................................... 17 7. ANTENNA APPLICATION ........................................................................................................... 19 7.1 ANTENNA REQUIREMENT........................................................................................................................... 19 DONGGUAN EMTEK CO., LTD. REPORT NO: ED10030026-1 FCC ID: QDVWU-8256 DATE: 03/26/2010 Page 4 of 23 1. General Information 1.1 Product Description The NINGBO PROMIC TECHNOLOGY CO., LTD. Model: WU-8256 (referred to as the EUT in this report) The EUT is an short range, lower power, Wireless Microphone for Mobile A.V. Player & Amplifier System designed as an " Input Device. It is designed by way of utilizing the FM modulation achieves the system operating. A major technical descriptions of EUT is described as following: A) Operation Frequency: 904.85-925.35MHz B) Modulation: FM C) Number of Channel: 16 channels D) Antenna Designation: External E) Power Supply: DC9V Channel frequency: Frequency Frequency Frequency Cha…

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Test Setup Photos

Radiated Emission Setup Photos