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Zhongchuang Technology Group Limited LinkAV - Link your AV wirelessly! Focusing on Wireless Transmission for over 12 Years!
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UAV Drone COFDM QPSK HD Wireless Transmitter HDMI 1080P CVBS NTSC / PAL

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Zhongchuang Technology Group Limited
City: Shenzhen
Province/State: Guangdong
Country/Region: China
Tel: 86-755-83735058-8016
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Miss Shandy

UAV Drone COFDM QPSK HD Wireless Transmitter HDMI 1080P CVBS NTSC / PAL

Brand Name : LinkAV
Model Number : LinkAV-C654-1W
Certification : CE
Place of Origin : China
MOQ : 1
Price : usd1000-2000/pcs
Payment Terms : T/T, Western Union, MoneyGram, L/C
Delivery Time : 10-20 working Days
Packaging Details : Standard Export Packaging
Modulation : COFDM
Receiving Sensitivity : -106dBm (at 4Mhz)
Encryption : AES256
Narrow Bandwidth : 2MHz~8MHz (Optional)
HDMI : 1080P
CVBS : (NTSC / PAL)
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UAV Drone COFDM QPSK HD Wireless Transmitter HDMI 1080P CVBS NTSC / PAL

LinkAV was founded in 2005 to provide wireless microwave products for video audio and data transmission based on COFDM/TDDOFDM/MESH/4G technology.
The COFDM with narrow bandwidth (2M-8MHz adjustable) and strong anti-multipath interference ability,different with analog and conventional modulation techniques, We are special for high-speed and real-time high-quality non-line-of-sight images transmission, particularly suitable for using under complex environments.
H.264 standard video coding,1080P high-definition,clear picture quality, bright colors, smooth image characteristics for high reliable video transmission.
Our wireless video transmission equipment are widely used in government surveillances,law enforcement,UAV &UGV ,broadcasting, security, civil defense, fire, emergency rescue departments,forest fire prevention, transportation, customs, railways, mining, electricity, finance and so on.

HD Wireless Transmitter Introduction
The C654 transmitter is a mini COFDM video transmitter from Wireless LinkAV, designed specifically for UAV/ Drones video transmission applications.
With proven LinkAV COFDM technology and H.264 encoder technology at its core, the C654 transmitter enables viewers high definition images ideal for establishing rugged wireless video links in all environments including mobile and urban environments.
The small size and ultra-low power consumption make the C654 transmitter ideal for UAV installations, enabling true long range HD quality transmission from these increasingly popular devices for the first time. Optional lightweight, low power consumption amplifiers are also available for even greater range capability.
C654 transmitter can transmit images air to ground up to 20km, depending on mode and frequency.

HD Wireless Transmitter Specification

Transmission Characteristics
ModulationQPSK(4QAM),16QAM,64QAM
Frequency300MHz-2.7GHz ( Default 700MHz/2.4GHz)
Transmit power30dBm
RF bandwidth2MHz~8MHz(optional),1KHz step
FEC(forward error correction)1/2,2/3,3/4, 5/6,7/8
Guard Interval1/4,1/8,1/16,1/32
Rate3MBps~32MBps
Antenna Gain3.5dbi (Omni Antenna) (optional)
Transmission rangeAir to Ground 20km
Data Characteristics
Video Input

HDMI: 1080 60P,1080 50P,1080 30P,1080 25P,1080 24P,1080 60I,1080 50I,1080 30I,720 60P,720 50P,720 30P,... (Mode adaptive)
AV:720x480 60I(NTSC),720x576 50I(PAL) (Mode adaptive)

Video CompressionH.264
RF InterfaceSMA F head
Parameter Control MethodUsing digital LED control panel
Encryption256 - bit AES (can set user’s password)
Electrical Characteristics
Working VoltageDC12V
Working Current≤1.2A(@12V)
power consumption≤14.5W
Physical Characteristics
WeightLess than 110g
Dimensions77x54x23.5mm
Working Environment-10℃~+70℃


Transmitter Antenna:SMA Female head,Standard with omni directional feeder whip antenna,antenna gain is 3.5dbi.
(Note: Please don’t turn on the transmitter without TX antenna ,otherwise it cound be damaged.)
FM board Interface:From left to right the pins are:1.DC5V,2.GND,3.RXD,4.TXD, If needed, transmitter parameters can be modified by our FM board or through the computer serial port.
Data interface: Can be connected with computer,change parameters via serial port TTL level,Transparent baud rate factory default is 115200, Please confirm the details in our instruction list.
Power Interface: voltage12V DC, current 1A
A/V CVBS Signals Input: 3.5MM / 3 audio and video interface, AV cable connect to the analog camera.
Working Indicator:Work indicator are red and yellow digital tubes,normal work power on with red indicator,Connected to the signal source,yellow light blinks when the transmitter normally sends data,The faster the flash, the larger the transmitted data.
HDMI signal input:HDMI-C interface, you can use the HDMI (C-D) cable to connect high-definition camera.



HD Wireless Transmitter Installation Directions:
1.Use velcro or ribbon to fix the transmitter on the drone,as shown above.(The installation location is best close to the aircraft's center of gravity position,the vibration is relatively small)
2.You can fix the antenna on the UAV two tripod, keep the antenna vertical down.
3.HDMI cable to connect the camera's HDMI output and the transmitter's HDMI-In interface.
Note:

  • Please confirm the velcro or ribbon to ensure that the transmitter installed firmly.
  • The transmitter and the PTZ camera please try to choose appropriate location to install,Use the appropriate length of HDMI cable as much as possible to reduce electromagnetic interference.
  • When installing the transmitter, please note that the interfaces (such as power supply interface, HDMI / AV source input interface, antenna interface) are not blocked, so that easy to use a variety of line connections.
  • Please make sure the transmitter cooling hole is upward and uncovered.
  • The device is not waterproof, not oilproof


LinkAV-C204 Mini Wireless Receiver is a compact digital diversity receiver in a durable, compact and lightweight housing. It can receive multiple different frequencies of transmitter audio signal, support HDMI and CVBS interface with external display and USB storage.
It can realize the AV transmission between the transmitter and the mini receiver LinkAV-C204.
Adopting the advanced foreign technology of diversity reception, to overcome the simulation technology and conventional modulation technology under multipath reflection image transmission, and keep real-time transmit high quality SD/HD image under high speed mobile and NLOS conditions, particularly suitable for using in complex environment

Transmission Characteristics
ModulationCOFDM
ConstellationQPSK(4QAM),16QAM,64QAM
Frequency200MHz-2.7GHz optional(Default 700MHz/2.4GHz)
RF bandwidth2MHz~8MHz(optional),1KHz step
FEC(forward error correction)1/2, 2/3, 3/4,5/6, 7/8
Guard Interval1/4,1/8,1/16,1/32
Sensitivity-106dBm(at 4Mhz)
Data Characteristics
Video Output

HDMI:1920x1080 p60
AV:720x480 60I(NTSC)

Video CompressionH.264/MPEG-2
RF InterfaceSMA F head
Storage interfaceTF card (128G)
Parameter Control MethodUsing digital LED control panel
Encryption256 - bit AES (can set user’s password)
Electrical Characteristics
Working VoltageDC6V-15V
Working Current≤0.2A(@12V)
power consumption≤2.5W
Physical Characteristics
WeightLess than 248g
Dimensions114.4x91x32.8mm
Working Environment-20℃~+70℃




































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UAV Drone COFDM QPSK HD Wireless Transmitter HDMI 1080P CVBS NTSC / PAL Images

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