Дастури истифодабарандагони системаи интиқоли бесими видеои сайёри COFDM HD

COFDM Mobile Video Wireless Transmission users manual for COFDM-908T and COFDM-912T

Users Manual for COFDM Mobile Video Wireless Transmission

This is a manual for COFDM-912T and COFDM-908T. If the HD input is mentioned in the text, it refers to the COFDM-908T model. If the SD input is mentioned in the text, it refers to the COFDM-912T model. Please Pay attention to the distinction.

1. Вижагиҳо

• хеле муттаҳид, тарҳи модулї
• Қабули технологияи модуляцияи COFDM, Технологияи рамзгузории тасвир H.264
• Can transmit one 1080P HDMI signal and one unidirectional data up to 230400Kbps
• latency пасти, the minimum end-to-end latency is 350ms
• Ҳамаи-мудаввар алоқа, сохтани девор, ҳаросон нашавед
• High-speed travel-to-travel communication,
• Қуттиҳои алюминийи интиқолдиҳанда, shockproof and impact resistant
• Non-хати-аз-пеши (NLOS) интиқоли мобилӣ, the transmission distance of 2W power is not less than 30 kilometers under the condition of no interference, the transmission distance of 5W power is not less than 50 километр, and the transmission distance of 10W power is not less than 80 километр
• Суръати максималии ҳаракат метавонад ба 600 км / соат расад (чен карда мешавад)
• Қабули ҳамзамони сигналҳои аудио ва видео, форматҳои баландсифати баландсифати HDMI1080P ихтиёрӣ, баромади стандартии таърифи DVD
• Қабулкунак метавонад вазифаҳои сабти видео ва нусхабардории онро иҷро кунад
• 128-рамзгузорӣ ва рамзкушоӣ каме AES
• Can provide full customization

2. Ариза

This product is mainly used in technical reconnaissance and evidence collection of public security and safety inspection departments, real-time picture transmission of drones and unmanned ships, radio and television broadcasting, broadcasting live broadcasting: соњаи пахш, пахши варзиш, хабари иҷтимоӣ、ҳавоӣ зинда、студияи, mountaineering expeditions and more. Он барои интиқоли мобилии воқеии тасвирҳои баландсифат дар муҳити гуногуни мураккаб, аз қабили шаҳрҳо, мувофиқ аст, баҳрҳо, ва кӯҳҳо.

3: Parameter Indicators

1: мефиристад (only standardized pictures, except for customization)

Product parameters:

талфиқи	COFDM
шиддати амалиётӣ	DC11V~DC17V
ҷорӣ корӣ	1Дар：≤1.3A DC12V，5Дар：≤2.5A DC12V，10Дар：≤5.2A DC12V，
интерфейси назорат	Standard RS232 interface, 8 Лаҷом маълумот, 1 истгоҳи каме, ҳатто таносуби, Меъёри baud: 19200
интерфейси шаффофи маълумот	Интиқоли порти силсилавии шаффофи яктарафа, 8 Лаҷом маълумот, 1 истгоҳи каме, дастгирӣ таносуби тоқ, ҳатто таносуби, паритети бесим, Меъёри baud: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 、230400
Encryption	Дастгирии рамзгузории 128-бит
харитасозии модулятсия	QPSK（4QAM）、16QAM、64QAM
ки ислоҳи хатогиро пеш	1/2 2/3 3/4 5/6 7/8
фосилаи посбон	1/32 1/16 1/8 1/4
Миқдори наылкунандагон	2к
паҳнои басомад	2/3/4/5/6/7/8М танзимшаванда
ҷараёни нақлиёт	2000кбс ~ 20000кб танзимшаванда
нерӯи барқ	1В/5В/10Вт
басомади интиқол	Any frequency can be customized, the frequency is continuously adjustable, the adjustable range is ±20MHz, and the step is 1MHz
flatness Ҳокимият	Less than 0.2dB in 10MHz band
таносуби китфи	The shoulder-to-shoulder ratio is better than -28dB at full power output
second harmonic	≤-45dB
MORE	32DB
видеои вуруд	720×480 60I(NTSC), 720×576 50I(Пал), 720 50P, 720 60P, 1080 50ман, 1080 60ман, 1080 24P, 1080 25P, 1080 30P, 1080 50P, намудҳои гуногун мутобиқ мешаванд.
Интерфейси HD	HDMI
формати рамзгузории видео	H.264
стандарти њифзи	Ҳамаи-алюминий навъи цакамк шасси, зидди зангзании, тарҳи ба зарба тобовар
андозаи умумӣ	102*80*30mm（1w)/102*90*30mm（5W）/188*47*34mm（10W）/228*55*40mm（20W）
Total Weight	≤0.20KG （1W） / ≤0.27KG （5W） ≤1.5KG （10W） ≤2KG （20W）

2: қабулкунанда

Product parameters:

Portable multi-bandwidth HD receiver parameters
Қабули диапазони басомад	170-860МГц VHF&UHF
паҳнои басомад	2/3/4/5/6/7/8МГс, иловагӣ
Сатҳи вуруди RF	-94dBm ~ -15dBm (дар маҷрои 8M)/-98dBm ~ -15dBm (at 2M bandwidth)
ФР impedance вуруди	50 ohms
пайвасткунаки вуруди ФР	Н сар
усули Demodulation	COFDM
Constellation way	QPSK, 16QAM, 64QAM (иловагӣ)
ки ислоҳи хатогиро пеш	1/2,2/3,3/4,5/6,7/8 (иловагӣ)
Миқдори наылкунандагон	2к，
фосилаи посбон	1/32,1/16,1/8,1/4 (иловагӣ)
рамзкушоии видео	MPEG-2MP@ML/H.264
screen aspect ratio	4:3 16:9
Video output image	720*576@8MHz 1080P@60P、50P、50ман、30P、
ҳолати баромади аудио	Stereo unbalanced 300/ 200mv
баромади Audio	2баромади Audio + 2баромади Видео
шиддати амалиётӣ	AC220V/DC12V ＜0.4A
ҳарорати амалиётӣ	-20℃ ～ + 50 ℃
physical dimension	136*115*35mm non-standard all-aluminum shell
вазни таҷҳизот	0.35Кг

4: Instructions for use

1: мефиристад

1. Functional area description

“ANT”: Transmitting antenna interface, please connect the antenna before powering on

“HDMI”: High-definition video input interface, input below 1080/50P

“Ctrl”: Transmitter tuner connection interface

“DC 12V”: DC12V power input port. “+” is the positive pole of the power supply, “-” is the negative pole of the power supply

“DC” is: Power indicator light, when the light is always on, it means that the power input of the transmitting module is normal

“TS”: Video input detection indicator light, this light is always on to indicate video input and normal encoding

2. Parameter Configuration Description

Connect the transmitter parameter adjuster, press the “MENU/OK” key to enter the menu, the encryption key and data serial port parameters are displayed first, press the left or right key to move the cursor, and the up and down keys to adjust the parameters

After the parameter setting is completed, press “MENU/OK” to enter the next menu, and the interface is displayed as shown in the figure

Press the left or right key to move the cursor, press the up or down key to adjust the required parameters, the interface prompts as shown in the figure

After all parameter settings are completed, press the “MENU/OK” key to confirm, and the display will be as shown in the figure.

After the setting is completed, the parameters are written successfully, and the display is as shown in the figure

3. General Troubleshooting

як: The light is off after the power is turned on: Check whether the power input meets the standard

б: “TS” indicator light is off: Check the video input connection cable, check whether the video input format conforms, and check whether the camera is interfered with (you can judge by holding the antenna with your hand).

$ C: The temperature of the transmitter is very low: check whether the current is normal (the deviation can be ±0.2A within the standard current).

г: Three lights are always on, and one of them is super bright: it means that the transmitter has failed the detection, and you can try to power off and restart (uncommon)

2: қабулкунанда

1. Functional area description

“RF in1” “RF in2”: receiving antenna interface, it is recommended to connect the antenna and then turn on the power switch, because the static electricity of the human body may cause the receiver to crash.

“HDMI”: Video output interface, the output video format can be adjusted through the “HDMI” menu on the control panel.

“DC 12V”: интерфейси вуруди Ҳокимият, please strictly follow the power supply voltage requirements, and overvoltage input is strictly prohibited

“ON/OFF”: power switch.

“USB”: video storage interface, when the U disk is inserted, press the “EXIT” button to start the video recording, after the recording is successful, the video display will display the video recording time, and the stored file name is “TS”.

2. LCD parameter description

як：CH01 UNLOCKED（LCKED）

“CH01” means the channel number of the receiver, “UNLOCKED” means the received signal is unlocked, and “LCKED” means the signal is locked. “CH00” of the receiver is the initial writing channel, and the default channel corresponding to the normal operation of the transmitter is “CH001”

б： FREQ：602.0МГс

“602.0MHz” is the receiving frequency of the receiver, this frequency must be consistent with the frequency set by the transmitter, otherwise the receiver will not search or receive the signal from the transmitter

в： BW:6.0МГс

“BW” bandwidth, as shown in the figure, “BW: MHz” is understood as the RF bandwidth is 6MHz, this bandwidth must be consistent with the bandwidth set by the transmitter, otherwise the receiver will search for or cannot receive the signal from the transmitter

г： КИТ:1/2

“FEC: 1/2” is the channel error correction, this parameter synchronizes the parameters set by the transmitter, ва қабулкунанда тағир дода намешавад

д： GI:1/32

“GI:1/32” is the channel guard interval, ин параметр аз ҷониби интиқолдиҳанда синхронӣ муқаррар карда мешавад, ва қабулкунанда тағир дода намешавад

f:ХАРИТА: QPSK

“MAP: QPSK” is the modulation mapping, ин рақами параметр аз ҷониби интиқолдиҳанда синхронӣ муқаррар карда мешавад, ва қабулкунанда тағир дода намешавад

г： SNR:0.0DB(SNR:15.0DB)

“SNR: 15.0dB” is the signal quality (яъне, таносуби сигнал ба садо, арзиши калонтар аст, бехтар). When “0.0dB” is displayed, сифати сигнал аст 0, ва приёмник баста наметавонад

“(SNR:15.0DB)” means the receiving signal-to-noise ratio is greater than 15dB. In the “QPSK” modulation mapping state, то он даме, ки таносуби сигнал ба садо аз 6дБ зиёд бошад, қабулкунанда метавонад баста шавад

з: PW：-72.1dBm（PW:-72.1)

PW қувваи сигнали қабулшуда мебошад, (арзиши сатҳи истинод), охири интиқолдиҳанда нисбат ба масофа дуртар аст, қувваи сигнал заифтар аст, ва арзиши намоишшуда ҳамон қадар калонтар аст, вакте ки передатчик ба кор надарояд, if the signal strength of the receiver is greater than -90dBm (such as -79.7dBm), it can be considered as adjacent frequency interference

3. Parameter Configuration Description

Power on the receiver, and press the “MENU/OK” button to enter the menu, the first display is the menu of adjustable parameters, if you search for a specified frequency, directly press the “MENU/OK” button to enter the menu; if you want to remove the channel, press Press down to select “ListanbulChannel”, and then press “MENU/OK” to enter the menu operation; if you need to change the video output format, move the cursor to the “HDMI Mode” menu, press “MENU/OK” to enter, and select the video to be output After formatting, press the “MENU/OK” key to confirm.

The frequency search method is as follows. After entering the frequency setting menu, the interface is displayed as shown in the figure. Press the left or right key to move the cursor, press the up or down key to adjust the frequency, маҷрои ФР, and secret key that match the transmitter, and press the “MENU /OK” key to search. Note that the transmitter must be turned on at this time, тартиби дигаре, the receiver will not be able to lock because it cannot find the signal.

COFDM Mobile Video Wireless Transmission with a cheap price is including a transmitter and receiver for China directly

When the search is completed, press “MENU/OK” to confirm, and the channel is saved in the register of the assistant board, as shown in the figure. To save the channel to the receiver register, press the “MENU/OK” key and the right key at the same time.

After the receiver parameter setting is completed, the functions of the panel keys are as follows

“↑”“↓“: each individually selectable receiver channel “CH**”

“←”“→“: You can choose to view the hidden parameters of the receiver

“EXIT”: start and stop recording

4. Video function

Insert the storage device into the “USB” interface of the receiver, press the “EXIT” button to start recording, and a blue recording time box will appear on the upper left corner of the video display as shown below

5. General Troubleshooting

як: The value after the receiver displays “-” is very low (Tx is not turned on): It means that the current channel has serious electromagnetic interference, and the normal value is -90- -100.

б: Cannot record video: check the U disk or replace the U disk.

$ C: No signal received: Check whether the channel frequency is consistent with the transmitter.

г: No video output: Check the connection line, power off, and restart to check whether there is a boot interface.