PVDHT-V20Wireless Microphone

*** Caution *** Changes of modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment FIG OF WIRELESS MICROPHONE 1.Unsrew the battery cover at the end of microphone, put a 9V battery into compartment with correct polarities, then close the cover. 2. Pushing "ON/OFF" switch to "ON" position, "PWR" indicator comes on green. If it doesn't come on, please check the voltage of battery or polarities. If it gets dim bit by bit, then "LOW" indicator becomes red in using, this indicates battery is dead, please replace by another new one. 3. Pushing "MUTE" switch to downside, audio will be cut down, noises are prohibited to come across receiver. To use microphone, please push "MUTE" switch to upside. 4. Please confirm frequency of transmitter same as that of receiver before operation.

Top View of EUT Bottom View of EUT Side View of EUT Front View of EUT Back View of EUT

Shen Zhen JWL Electronic Co, Ltd This device complies with Part 74 of FCC Rules FCC ID: PVDHT-V20

Shen Zhen JWL Electronic Co, Ltd This device complies with Part 74 of FCC Rules FCC ID: PVDHT-V20

Page 1 of 41 Rev. 00 Inside View of EUT-1 Inside View of EUT-2

Applicant: Shen Zhen JWL Electronic Co., Ltd. HT-V20 Operational Description 1. Audio 1) MIC AMP(VT1) This amplifiers the voice signal of 50Hz~15KHz by about 20dB and makes pre-emphasis features of 50us. 2) Regulator (N1) This makes standard voltage for MIC AMP and RF part being supplied power from 9V Battery. 2. RF 1) Oscillator (VT3) This is a transmitting carrier oscillator that modulates the voice signal supplied for Audio to frequency and then oscillates third-time overtone and becomes standard oscillation for RF Carrier. 2) MULTI (VT4) This multiplies the frequency oscillated from VT3.(FREQ: 2 multiplied frequency) 3) MULTI (VT5) This also multiplies the frequency multiplied in VT4.(FREQ: 2 multiplied frequency) 4) Buffer This doesn’t make the antenna affect the internal circuit when connecting the antenna and final carrier multiplied from VT5. HT-V20 TRANSMITTER BLOCK DIAGRAM

COMPONENTS LIST OF HT-V20 TRANSMITTER NO. Name Specification Quantity/Set Page 1 of 2 A Electronics components 1 Chip Resistor 100/0603 2 150/0603 1 680/0603 2 750/0603 1 820/0603 1 1k/0603 2 2.2k/0603 5 3.3k/0603 1 5.6k/0603 1 10k/0603 2 22k/0603 1 33k/0603 1 47k/0603 1 75k/0603 1 130k/0603 1 220k/0603 1 2 Potentiometer 20K 1 3 Chip capacitor 0.5pF/0603 2 3pF/0603 1 10pF/0603 4 33pF/0603 4 51pF/0603 1 100pF/0603 2 1nF/0603 1 2.4nF/0603 1 10nF/0603 5 0.1uF/0603 1 4 Trimmer capacitor 30pF 1 5 Electrolytic capacitor 1uF/16V(45) 1 4.7uF/16V(45) 6 47uF/16V(45) 3 6 Fixed inductor 2.2uH 2 table 1 7 Variable coil SJ31(557) 1 8 Coil table 5 COMPONENTS LIST OF HT-V20 TRANSMITTER NO. Name Specification Quantity/Set Page 2 of 2 9 Diode BB134(SOD323) 1 2.4V/0.5W 1 5.1V/0.5W 1 10 Audion PBR951(SOT-23) 2 2SC1623(SOT-23) 2 2SC9018(SOT-23) 1 11 IC 78L05(TO-92) 1 SP31101(SOP-16) 1 12 Crystal table 1 13 Switch SM-22D16G5 2 14 LED LED GRE TR7 1 LED RED TR7 1 15 Chip capacitor table 5 Frequency Table Frequency X1 C21C25C33C39C43L5L6 L3 L4 L7 L1 (MHz) (MHz) (pF) (pF)(pF) (pF) (pF)(uH) (uH) (uH) (uH) (uH) (uH) 174.1 T174.1T no no 4/0.6/4.5T 3.5/0.6/2.5T 4/0.6/6.5T 4/0.6/6.5T 4/0.6/4.5T5.6 177.6 T177.6T 110 11033 33 no 4/0.6/5.5T 3.5/0.6/2.5T 4/0.6/6.5T 4/0.6/6.5T 4/0.6/4.5T4.7 204.6 T204.6T 100 10018 no no 4/0.6/5.5T 3.5/0.6/1.5T 4/0.6/5.5T 4/0.6/5.5T 3.5/0.6/3.5T1 215.6 T215.6T no 1004/0.6/5.5T 3.5/0.6/1.5T 4/0.6/5.5T 4/0.6/5.5T 3.5/0.6/3.5Tno

1 2 34 ABCD 4 3 2 1 D CBA X1 table C23 33p C24 51p C21 table C263p R1347k R15 5.6k VD2 BB134 L2 table VT2 2SC2714 C410n VT4 PBR951 C22 10n C25table R4750 R375k VT1 2SC1623 C300.1u C20 33p XS1 C747u C3 33p C233p HT-V20.SCH VT3 PBR951 L1 SJ31 R17 2.2k R26 100 C38 1n L7table N278L05 C35 table C34 10n C1 4.7u/16V RP1 B10k R1no C19 4.7u/16V C16 6.8n C36 0.5p R822k R10 75k R16 10k R1910kR2033k R21680 C31 1n L5 table C33 table C32 10p R24680R252.2k TP2 C40 30p(var) L6 table R142.2k L8 2.2uH C41 10p L9 2.2uH + - 9V电池 R23100 C3710n E.RECT 1 IN(E.RECT) 2 IN(E.G) 3 GND 4 Vref 5 E.NF 6 OUT(EXP) 7 E.CP 8 C.CP 9 OUT(COMP) 10 IN(COMP) 11 C.NF 12 VCC 13 IN(C.G) 14 IN(C.RECT) 15 C.RECT 16 N1 SP31101 C91u C114.7u C13 4.7u C174.7u C15100p C6 4.7u R72.2k C1847u R12150 L3 table L4 table C2910p C39 table VD2RED R18 2.2K C27 10n C20 no R221k R25.1K C280.5p TP1 SW1POW SW2MIC VD35.1V VD42.4V R29130K VD1 GREEN R28820k VT5 2SC1623

LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ0601002E FCC ID: PVDHT-V20 DATE: 01/18/2006 Page 1 of 40 Rev. 00 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 74 SUBPART H REQUIREMENT OF Wireless Microphone MODEL NO.: HT-V20 BRAND NAME:JWL FCC ID: PVDTH-V20 REPORT NO:LW-SZ0601002E ISSUE DATE: January 18, 2006 Prepared for SHEN ZHEN JWL ELECTRONIC CO., LTD ROOM B-OP, 27/F WINDOW TO MODERNIZATION BUILDING HUA QIANG ROAD NORTH, FUTIAN DISTRICT SHENZHEN, GUANGDONG, CHINA Prepared by LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. d.b.a. LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. NO. 1501, B BUILDING, EAST GARDEN, SHENNAN ROAD #12038, NANSHAN DISTRICT, SHENZHEN, GUANGDONG, CHINA TEL: 86-755-86174774 FAX: 86-755-86174774 LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ0601002E FCC ID: PVDHT-V20 DATE: 01/18/2006 Page 2 Rev. 00 VERIFICATION OF COMPLIANCE Applicant: Shen Zhen JWL Electronic Co., Ltd. Room B-OP, 27/F Window to modernization Building Hua Qiang Road North, Futian District Shenzhen, Guangdong, China Manufacturer: Shen Zhen JWL Electronic Co., Ltd. Room B-OP, 27/F Window to modernization Building Hua Qiang Road North, Futian District Shenzhen, Guangdong, China Product Description: Wireless Microphone Brand Name: JWL Model Number: HT-V20 Serial Number: N/A File Number: LW-SZ0601002E Date of Test: January 03,2006 ~ January 17, 2006 We hereby certify that: The EUT was assessed by LONGWAY (SHENZHEN) CERTIFICATION SERVICE 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 TIA/EIA 603; ANSI C 63.4:2001 and the sample tested as described in this report is in compliance with the FCC Rules Part 74 Subpart H. The test results of this report relate only to the tested sample identified in this report. Approved By King Chen / Q.A. Manager LONGWAY(SHENZHEN) CERTIFICATION SERVICE CO., LTD. LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ0601002E FCC ID: PVDHT-V20 DATE: 01/18/2006 Page 3 Rev. 00 Ta b l e o f C o n t e n t s 1. GENERAL INFORMATION .............................................4 2. SYSTEM TEST CONFIGURATION .............................................6 3. SUMMARY OF TEST RESULTS .............................................9 4. DESCRIPTION OF TEST MODES ..............................................9 5. MAXIMUM TRANSMITTER POWRE ..........................................10 6. MODULATION CHARACTERISTICS ..........................................13 7. FREQUENCY TOLERANCE .........................................21 8. EMISSION BANDWIDTH ...........................................25 9. UNWANTED RADIATION .............................................28 APPENDIX 1 PHOTOGRAPHS OF SETUP ..............................................34 APPENDIX 2 PHOTOGRAPHS OF EUT .............................................36 LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ0601002E FCC ID: PVDHT-V20 DATE: 01/18/2006 Page 4 Rev. 00 1. GENERAL INFORMATION 1.1 Product Description The Shen Zhen JWL Electronic Co., Ltd. Model: HT-V20 (referred to as the EUT in this report). The EUT is a signal channel Wireless Microphone designed as Low Power Auxiliary Stations for transmitting voice only. 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). Frequency Tolerance: 0.00315% (0.005%) B). Communication Type: Voice/Tone only C). Modulation: FM D). Emission type: F3E E). Emission designator: 51K6F3E (2M+2DK, M=12, D=13.8, K=1, Necessary Bandwidth = 51.6 KHz) F). Emission Bandwidth: 59.6 KHz (Limit: 200 KHz) G).Peak Frequency Deviation: 13.8 KHz (Limit<75 KHz) H).Audio Frequency Response: 12 KHz I). Maximum Transmitter Power: 0.00104 mW (Limit: 50 mW) J). Output power Modification: Fixed can’t be change K). Unwanted Radiation: 1). At least 50 dB (Limit 25 dB) on any frequency removed from the center of the authorized bandwidth by more than 50% up to and including 100% of the authorized bandwidth. 2). At least 60 dB (Limit 35 dB) on any frequency removed from the center of the authorized bandwidth by more than 100% up to and including 250% of the authorized bandwidth. 3). At least 60 dB (Limit –16.83 dB) on any frequency removed from the center of authorized bandwidth by more than 250%) L ). Antenna Designation: Integral M). Power Supply: 9 V dc by battery N). DC Voltage= 6.8 V and DC Current= 3.46 mA into the final stage for normal operation over the power range O). Battery Endpoint: DC 6.8 V P). Operating Frequency Range and Channels Frequency Range: 174.1 MHz – 215.6 MHz CH 01 – 174.1 MHz CH 02 – 177.6 MHz CH 03 – 204.6 MHz CH 04 – 215.6 MHz Q). Effective distance: 30M LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ0601002E FCC ID: PVDHT-V20 DATE: 01/18/2006 Page 5 Rev. 00 1.2 Related Submittal(s) / Grant (s) This submittal(s) (test report) is intended for FCC ID filing to comply with the FCC Part 74, Subpart H Rules. 1.3 Test Methodology The radiated emission testing was performed according to the procedures of ANSI TIA/EIA 603 and FCC CFR 47 2.1046, 2.1047, 2.1049, 2.1051, 2.1053, 2.1055 and 2.1057 1.4 Test Facility The open area test site used to collect the radiated data is located at No. 6, Jinao industrial park, No.35 Jukeng Road, Dashuikeng Village, Guanlan Town, Baoan District, Shenzhen, China. The Open Area Test Site is constructed and calibrated to meet the FCC requirements in documents ANSI C63.4: 2003 and CISPR 22/EN 55022 requirements. 1.5 Special Accessories Not available for this EUT intended for grant. 1.6 Equipment Modifications Not available for this EUT intended for grant. 1.7 Differences between Models Model Name Differences HT-V20 N/A LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ0601002E FCC ID: PVDHT-V20 DATE: 01/18/200…

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Radiation Test Setup Photo