VHH-TXV2408WIRELESS A/V TRANSMITTER

User’s Manual 240240 2.4GHz Wireless TV Box Contents Contents 27 Precautions 7. Precautions 7.1 Normal phenomenon Interruption appears while moving. Please move to a fixed place to watch. As adopting RF control technic, there will be momentary interruption in the picture when using remote control. The transmission distance varies according to the surroundings; the distance of ordinary house is about 10-20 meters. But if the wall is of iron and concrete, it will largely muffle the signal (can not receive signal or shorten receiving distance) 7.2 Using precautions 2.4GHz domestic appliance (such as micro oven, 2.4GHz cordless phone, Bluetooth earphone, or 802.11b/g wireless network) may affect the quality of receiving even cause no signals receiving. If affected by micro oven, the receiver should be put far from it. As for other interruptions, you can reset the signal channel of the transmitter and receiver. The transmitter should be put on a higher place to get better transmission effect when there is no obstacle around the transmitting antenna, thereby the transmission distance will become longer. It can also reduce the interruption from our moving when the receiver is placed higher. 1 Introduction Combining 2.4GHz wireless technic and USB TV box technic, UTV240 is known as a Hi-Tech product. Advanced 2.4GHz wireless transmission technic effectively realizes CATV or A/V signal wireless transmission in your house. Connected to your laptop or PC via USB cable, you will be satisfied with enjoying your favorite channels and Hi-Fi A/V programs while using computer. Because of high speed USB2.0 port and progressive scanning technic, USB TV presents stable and sharp pictures. Full function remote control makes it easier to watch TV on computer. Attached with multi-function software, you can sequence and rename channels according to your favorite. What's more, some dynamic data can also be recorded on your computer from recorder, video camera, web camera or other video devices and stored onto the hard disc, to burn VCD, SVCD, and DVD disc via special software. With scheduled recording function, you will not miss any highlights. High-quality static picture capturing function converts every highlight into digital album, and you can share with your friends via uploading to the web. 1. Introduction 1.1 Brief introduction 1.2 Features There are 4 channels ,and the frequency scope ranges from 2.400GHz to 2.483GHz. To increase the flexibility and reliability,we prepare four selectable ch- annels (2.414GHZ, 2.432GHz, 2.450GHz, 2.468GHz). Support all frequency TV wireless transmission and VCD , DVD signal transmission. 433MHz IR remote return transmission, easy to operate. IR transmitting, no extension cable needed. Compatible with NTSC/PAL video transmission and stereo audio trans- mission. TV wall function to browse programs easily. Channel list to sequence and rename channels at will. Customizable brightness, contrast, sharpness, hue and saturation. Static picture capturing and real time recording function. Scheduled recording function to catch every highlight. MPEG1/MPEG2 compressed format, convenient for recording disc. Available shortcut key to control your TV like operating computer. 2 1.4 System requirements Operation system: Windows XP (SP2), Vista Pentium2.4G/ Centrino1.4G DirectX 9.0 VGA card or higher version (more than 64MB) Capacity of 512M or higher Hard disc capacity of 1G or higher USB2.0 extension port 1.5 Application TV/AV wireless transmission, connected to laptop and PC. Large-scale conference video system and multimedia teaching. Security system, real time spot wireless monitoring. Introduction 1) 1.3 Specifications TXV2408 wireless A/V transmitter: Power input: DC 5V 300mA Radio-frequency input: 47-870MHz Video input: 1Vp-p (PAL/NTSC) Audio input: 2Vp-p (L/R) 2.4GHz channel: Four channels (2414,2432,2450,2468MHz) UTV324 wireless USB TV box: USB2.0 port Video input: 1Vp-p (PAL/NTSC) Audio input: 1Vp-p (L/R) Audio output: 2Vp-p (L/R) 2.4GHz channel: Four channels (2414,2432,2450,2468MHz) 2) 243 1.6 Common accessories UTV240 user’s manual ---------------------------1pcs Remote control ------------------------------------1pcs Power adapter -------------------------------------1pcs MMI AV cable -------------------------------------1pcs AV cable -------------------------------------------1pcs MINI USB cable& audio cable ------------------1pcs Software disc --------------------------------------1pcs 1.7 Optional accessory MMI S-Video cable(DIN 200S) -----------------1pcs Method two: Use the rear IR transmitting device Put the transmitter in front of the A/V device and make the rear IR remote sensor right towards that of the A/V device. Make sure no obstacles between them. Vertical view Left view (STB/DVD...) (STB/DVD...) Note: If permitted, place like the above for better effects. 6.2 UTV324 placing Follow the connection illustration to connect USB cable and then you can use UTV324. Make sure the IR sensor is right towards the remote control. Introduction Product placing and retransmitting 2.4GHz AV Transmitter 2.4GHz AV Transmitter Power adapter AV output device Sound card Speaker AV output device Laptop 423 L IN E O U T U S B M M I 2 .4 G H z A N T Connection and operation Product placing and retransmitting 2. Connection and operation 2.1 UTV324 connection illustration Note: Refer to Part4 (software instruction) to get UTV324 operation manual. Antenna 2.2 TXV2408 connection illustration and panel operation instruction: Rear panel: Antenna Antenna Rear IR transmitting equipment 1) 2) (STB/DVD...) 6. Product placing and retransmitting 6.1 Transmitter TXV2408 placing CATV watching: When watching CATV, you only need to connect power to CATV signal and place the unit in the proper position. Make sure no obstacle around. A/V devices like DVD, STB watching: Method one: Use the front IR transmitting device Put the transmitter onto the A/V device and make sure IR transmitting sensor is 2-3 cm fo…

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TXV2408 EM78P447SBP F requency:11.05 92MHz AV 4053 DC 5V TV/AV 2.4GHz Channel IR 433MHz RX 2.4GHz TX 5V 5V 24C04 KEY LED I2C TV/ AV LA7567 AV 33V IF I2C AGC 38K

DONGGUAN EMTEK CO., LTD. REPORT NO:E0712716E FCC ID:VHH-TXV2408 DATE: 01/04/2008

Proposed Label Location on EUT Proposed FCC Mark Location

FCC ID:VHH-TXV2408 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference,and 2. This device must accept any interference received, including interference that may cause undesired operation.

DONGGUAN EMTEK CO., LTD. REPORT NO:E0712716E FCC ID:VHH-TXV2408 DATE: 01/04/2008 Page 1 of 2 DONGGUAN EMTEK CO., LTD. REPORT NO:E0712716E FCC ID:VHH-TXV2408 DATE: 01/04/2008 Page 2 of 2

Circuit Description This passage is mainly on how TXV2408 wireless A/V transmitter works and is divided into two parts: The first part is on 2.4GHz A/V transmission: There are two kinds of signals input, one is AV signals from cable TV demodulated by the tuner and the intermediate frequency amplifier.The other is AV signal from external signal source. The two signals are transmitted to 2.4GHz transmitting module to demodulate via CD4053 which is controlled by MCU EM78P447 and then emitted. The second part is 433MHz ASK signal receiving: when ASK signal is received by 433MHz receiving module of TXV2408, it will directly transmitted to MCU EM78P447 to decode into IR data. Then the IR data will be transmitted to IR emitting tube to convert into IR signal and then transmitted to signal source device.

1 2 3 4 56 ABCD 6 5 4 3 2 1 D CBA Title Number Revision Size B Date: 6-Dec-2007 Sheet of File: E:\Hard ware\ 无线影音 \TV5600\TXV2408\TXV2408_V1.4.ddb Drawn By: Q8C1815 IR6IR333-A R8310R 0805 EC17 220u/16v C28 104 C27 104 +5V +5v R8010R 12 X2 11.0592MHZ C2415PC2315P 1234 SDA 5 SCL 6 GND 7 VCC 8 24C02 U724C04 DATA_IR DATA_IR EC15 10U/16V TX AV1 IN VIDEO-in 1 GND 2 AUDIO-Rin 3 AUDIO-Lin 4 +5V 5 CH1 7 CH2 8 CH3 9 CH4 10 CH-UP 6 ANT 11 GND 12 E2ZT623TA/TB IR_OUT IR_OUT IR2IR333-A +5V 3 3 2 2 1 1 Q7 C1815 TCC 3 VDD 4 NC 5 VSS 6 /INT 7 SOURCE 8 KEY0 9 KEY1 10 KEY2 11 LED0 12 LED1 13 LED2 14 P63 15 RE_IN/OUT 16 P65 17 P66 18 DATA_IR 19 P70 20 SYS_VGA 21 CH1 22 CH2 23 CH3 24 CH4 25 SDA_EEP 26 SCL_EEP 27 OSCO 28 OSCI 29 /RESET 30 P55 1 P54 2 P56 32 P57 31 U8 EM78P447SBP 12345678 U10NT-R11A ANTGNDGNDVCCDATAGNDVCCDATA R9110R 0805 C29 104 +5V L11 15uH 1 2 3 R51100 R710K EC13470U/16V R810K EC5 10u/10V C12105C13105 +5V 5V1 EC12470U/16V C14105 PJ2DC EC1110u/10V EC18100U/16V R711M R624K7 R508K2 R634K7 R461K R471K R3010K R21 10K R3810K R4310K R3910K SW4POWER R4010K SW_SOURCE R4210K R4410KR4510K SW5SOURCE SW6CH JK12LED R581K8 AV2 JK11LED R571K8 AV1 CH1_CON CH2_CON CH3_CON CH4_CON JK5LED R521K8 JK6LED R531K8 JK9LED R541K8 JK10LED R551K8 +5V CH1_LEDCH2_LEDCH3_LEDCH4_LED 12345678 910111213141516 B1B0C1C OUTC0INHVEEVSS VDD B OUT A OUT A1A0 S0S1S2 U2TC4053 SW_SOURCE AV1_RinAV1_Lin AV1_Lin AV1_RinAV1_VinVIDEO_OUTTV_AUDIO TV_AUDIO TV_VIDEO AV2AV1 POWER SOURCE CH_CON IR_ANT2 C30 100P IR_OUT IR_IN L3 100uH D21N4148 IR1IR333-A R491K EC10 10u/10V R1710KR614K7 VIDEO_IN Q5C1815 R481K VIDEO_OUT VIDEO_IN +5V E C B Q4S8550 Q6 C1815 R72680 POWER R73 1K POWER R562.2K 5V1 R6410K EC14 4u7 33V 5V1 SDA_TU SCL_TU SIF INPUT 1 BIAS FILTER 2 MIX OUT 3 CER OSC 4 VCC 5 VIDEO OUT 6 EQ FILTER 7 EQ INPUT 8 APC FILTER 9 DETOUT 10 COIL1 11 COIL2 12 AFTOUT 13 AGCOUT 14 1STIN 15 1STFIL 16 AGVFIL 17 VIF1 18 VIF2 19 GND 20 AGCVR 21 IST.0 22 FMFIL 23 FDOUT 24 U9 LA7567 C25 223 R77180R6956K 1 2 3 4 5 SAW2SAW C22 103 R66 10K C26 56P R67 10K R70 NC R794K7 T1 * EC160.47U R78 180 R93 220 L6 22UH R95 1K R97 220 R94470 C32 104 R10268 X3500K EC201U R100330 C21103 R7468K R75100K L5 22UH L9 22uH C31 22P C16105 C17 103 5V1 5V1 TV_AUDIO S2 * S1 * S3XL6.0 R10110K C15 105 R6810K R92560 TV_VIDEO PWMSOUND_SYS SOUND_SYS SCL_TUSDA_TU EC19 100U/16V D34148 33V L12680uH EC21 10u/16V EC22 2.2u/50V R96 1K R76100K PWM 5V1 R592.2K ANT 33V IF ADC SDA SCL AS VCC AGC 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 TU2 AFT1 Q9C1815 R1100 5V2 5V2 ANT_GND ANT_GND ANT_GND ANT_GND R21K R31K R4BEAD ANT_GND Q1 C1815 R6 4K7 R51K R128K2 R114K7 R91K R10100 Q2 A1015 ANT_GND +5V R13 10R BX 1 CH2 2 CH1 3 CH0 4 VCC 5 GND 6 VIDEO 7 GND 8 AUDIO_L 9 GND 10 AUDIO_R 11 2.4G TX E1 2.4G TX VIDEO_IN CH1CH2CH35V2 A_LA_R A_LA_R CH1CH2CH3

DONGGUAN EMTEK CO., LTD. REPORT NO:E0712716E FCC ID:VHH-TXV2408 DATE: 01/12/2008 Page 1 of 22 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 15 SUBPART B &C REQUIREMENT OF Wireless A/V Transmitter MODEL No.: TXV2408 Tr a d e m a r k : G A D M E I FCC ID: VHH-TXV2408 REPORT NO: E0712716E ISSUE DATE: Jan 12, 2008 Prepared for GADMEI ELECTRONICS TECHNOLOGY CO., LTD. Yin Zhan Farm, Qing Cheng District, Qing Yuan City, Guangdong Province, 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:E0712716E FCC ID:VHH-TXV2408 DATE: 01/12/2008 Page 2 of 22 VERIFICATION OF COMPLIANCE Applicant: GADMEI ELECTRONICS TECHNOLOGY CO., LTD. Yin Zhan Farm, Qing Cheng District, Qing Yuan City, Guangdong Province, China Product Description: Wireless A/V Transmitter Trademark: GADMEI Model Number: TXV2408 File Number: E0712716E Date of Test: Dec 23, 2007 to Jan 11, 2008 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:E0712716E FCC ID:VHH-TXV2408 DATE: 01/12/2008 Page 3 of 22 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 ........................................................................................................................ 4 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. Conducted Emissions Test .................................................................................................... 10 5.1 Measurement Procedure:....................................................................................................................... 10 5.2 Test SET-UP (Block Diagram of Configuration).................................................................................. 10 5.3 Measurement Equipment Used: ............................................................................................................ 10 5.4 Measurement Result:............................................................................................................................. 11 5.5 Conducted Measurement Photos:.......................................................................................................... 14 6. Radiated Emission Test .........................................................................................................15 6.1 Measurement Procedure ........................................................................................................................ 15 6.2 Test SET-UP (Block Diagram of Configuration).................................................................................. 16 6.3 Measurement Equipment Used: ............................................................................................................ 17 6.4 Out of Band Radiated Measurement Result .......................................................................................... 17 6.5 Radiated Measurement Photos: ............................................................................................................. 21 7. Antenna Application ............................................................................................................... 22 7.1 Antenna requirement ............................................................................................................................. 22 7.2 Antenna construction and directional gain ......…

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DONGGUAN EMTEK CO.,LTD. REPORT NO:E0712716E FCC ID:VHH-TXV2408 DATE:01/04/2008 Radiated Emission Setup Photos: Conducted Measurement Photos: