PVDHT-U20Wireless Microphone

*** Caution *** Changes of modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment 2 Unscrew the battery cover at the end of microphone, put a 9V battery into compartment with correct polarities, then close the cover. Pushing "ON/OFF" switch to "ON" position, "PWR" indicator comes on blue. 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. 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. Please confirm frequency of transmitter same as that of receiver before operation.

HT-U20 Block Diagram HT-U20 TRANSMITTER BLOCK DIAGRAM

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-U20

Shen Zhen JWL Electronic Co, Ltd This device complies with Part 74 of FCC Rules FCC ID: PVDHT-U20

Inside View of EUT-1 Inside View of EUT-2

Applicant: Shen Zhen JWL Electronic Co., Ltd. HT-U20 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-U20 TRANSMITTER BLOCK DIAGRAM

COMPONENTS LIST OF HT-U20 TRANSMITTER NO. Name Specification Quantity/Set Page 1 of 3 A Electronics components 1 Chip Resistor 10/0603 1 100/0603 1 220/0603 3 330/0603 1 470/0603 2 680/0603 1 820/0603 1 1k/0603 2 2.2k/0603 3 5.1k/0603 1 5.6k/0603 2 10k/0603 5 15k/0603 2 22k/0603 1 33k/0603 3 47k/0603 2 75k/0603 2 130k/0603 1 180k/0603 1 220k/0603 1 2 Potentiometer 20K 1 3 Chip capacitor 0.5pF/0603 4 1pF/0603 1 3pF/0603 3 3.3pF/0603 1 10pF/0603 1 15pF/0603 1 33pF/0603 1 51pF/0603 3 100pF/0603 2 220pF/0603 1 1nF/0603 1 4.7nF/0603 1 10nF/0603 13 47nF/0603 1 COMPONENTS LIST OF HT-U20 TRANSMITTER NO. Name Specification Quantity/Set Page 2 of 3 1uF/0603 2 4 Trimmer capacitor 10pF 3 5 Electrolytic capacitor 1uF/16V(45) 1 4.7uF/50V(45) 6 10uF/25V(45) 3 100uF/16V(6.35) 2 6 Fixed inductor 2.2uH 4 table 3 7 Variable coil SJ30T(557) 2 SJ31(557) 1 8 Coil 3.5/0.6/1T 1 3.5/0.6/2.5T 1 table 1 9 Frame Coil MD-0605-3.5T-CC 2 10 Diode BB134(SOD323) 1 2.4V/0.5W 1 5.1V/0.5W 1 11 Audion 2SC2714(SOT-23) 2 2SC1623(SOT-23) 1 PBR951 (SOT-23) 2 12 IC 78L05(TO-92) 1 SA571D(SOL-16) 1 NE4558(SOP-8) 1 13 Crystal table 1 14 Switch SM-22D16G5 2 15 LED LED BLUE 1 LED RED 1 16 Chip inductor table 2 17 Chip capacitor table 7 Frequency Table Frequency X1 C12C13 C14C19C22C23C55L1L15 L16 L18 (MHz) (MHz) (pF) (pF) (pF)(pF)(pF)(pF)(pF)(uH) (uH) (uH) (nH) 710.4 13.15706 47 56 1805.1no 10 2.7 3.5/0.6/3.5T18 734.6 13.6052 82 150 180 47 51 1805.1no 10 1.5 3.5/0.6/3.5T18 802.525 14.86307 82 150 150 39 43 1503 8.2no no 3.5/0.6/3.5T12 805.9 14.91817 39 43 1503 8.2no no 3.5/0.6/3.5T12 COMPONENTS LIST OF HT-U20 TRANSMITTER NO. Name Specification Quantity/Set Page 3 of 3

X1 table VD3BLUE R1510 L2 SJ31 （磁芯） L8 table C7 33p C9 51p C12 table C19table C11 3p R2 47k R75.6k R9 2.2k VD1 BB134 L1 table VT1 2SC2714 L3 SJ30 （磁芯） C48 100p R19 33k E1 9V SW2 开关 C15 10n R32 10 R16 220 R27 470 R20 10k R21 330 R13 220 R15 680 R12 33k R11 10k C18 1p C28 1n C16 10n C29 10n C62 3p VT3 2SC2714 VT4 PBR951 VT5 PBR951 L5 MD-0605-3.5T R5 2.2k R8 2.2k R10 62k C8 10n L11 3/0.6/1T R3 75k C13table L4 SJ30 （磁芯） C14 table C45 100p HT-U20.SCH C32 20p R22 100 C21100u C63 10p L18table L12 3/0.6/2.5T C56 0.5p C52 20p C25 10n L102.2uH R28 5.6k C35 table C10 10n C31 0.5p C30 20p C43 3.3p C44 15p L9 table C55 table C51 0.5p C23 table C22 table L6 MD-0605-3.5T N1 78L05 C39 10n C24.7u MIC R18 470 C21 4.7u XS1 XH-2WA(2.0) RP1 10k C26 220p C37 4.7u C36 4.7u R34 100k R17 220 R25 10k R355.1k C6 100u RECT CAP1 1 RECT IN1 2 AG CELL IN1 3 GND 4 INV. IN1 5 RES. R3 1 6 OUTPUT1 7 THD TRIM1 8 THD TRIM 2 9 OUTPUT2 10 RES. R3 2 11 INV. IN 2 12 VCC 13 AG CELL IN2 14 RECT IN 2 15 RECT CAP 2 16 N2SA571 C4710u C53 51p C271u 5 6 7 N3B4558 32 1 84 N3A 4558 R23 15k R24 15k R33 10k C59 4.7u C4151p C244.7u R31 22k C50 3.3n C49 1u C34 10u C40 0.1u R26 2.2k R6 10k C69 1p C38 0.5p R30220k R29180k C44100u C68 1p TP3 TP4 L7 2.2uH TP5 TP2 C42 1u R14 75k SW1开关 C5 10n C64 10n L13 2.2uH L142.2uH C61 3p VD2Z5.1V VD5 Z2.4V VT2 2SC1623 VD4 RED L16table L15table R4 1k C2010n

LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ0601003E FCC ID: PVDHT-U20 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.: TH-U20 BRAND NAME:JWL FCC ID: PVDTH-U20 REPORT NO:LW-SZ0601003E 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-SZ0601003E FCC ID: PVDHT-U20 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-U20 Serial Number: N/A File Number: LW-SZ0601003E 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-SZ0601003E FCC ID: PVDHT-U20 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-SZ0601003E FCC ID: PVDHT-U20 DATE: 01/18/2006 Page 4 Rev. 00 1. GENERAL INFORMATION 1.1 Product Description The Shen Zhen JWL Electronic Co., Ltd. Model: HT-U20 (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: 0.00093% (0.005%) B). Communication Type: Voice/Tone only C). Modulation: FM D). Emission type: F3E E). Emission designator: 53K2F3E (2M+2DK, M=14, D=12.6, K=1, Necessary Bandwidth = 53.2 KHz) F). Emission Bandwidth: 58.8 KHz (Limit: 200 KHz) G).Peak Frequency Deviation: 12.6 KHz (Limit<75 KHz) H).Audio Frequency Response: 14 KHz I). Maximum Transmitter Power: 0.0199 mW (Limit: 250 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 50 dB (Limit – 4.01 dB) on any frequency removed from the center of authorized bandwidth by more than 250%) L ). Antenna Designation: Integral M). Power Supply: 9.0 V dc by battery N). DC Voltage= 6.8 V and DC Current= 7.3 mA into the final stage for normal operation over the power range O). Battery Endpoint: DC 6.8V P). Operating Frequency Range and Channels Frequency Range: 710.4 MHz – 805.9 MHz CH 01 – 710.4 MHz CH 02 – 734.6 MHz CH 03 – 802.525 MHz CH 04 – 805.9 MHz Q). Effective distance: 30M LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ0601003E FCC ID: PVDHT-U20 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-U20 N/A LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ0601003E FCC ID: PVDHT-U20 DATE: 01/18/2…

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

Radiation Test Setup Photo