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UAV wireless image transmission

Fig

HD UAV transmitter

KWT-UHT-H1

 

○ Compact size: small size, only weighs 56g, reduces the carrying pressure of the drone

○ High reliability: The system adopts advanced COFDM modulation technology and has strong anti-interference ability. At the same time, it adopts 256-bit AES encryption technology to effectively prevent interference and eavesdropping

○ Easy to operate: intelligent design, external digital frequency modulator can adjust the working frequency, bandwidth, output power on site, intuitive and easy to use

○ High stability: non-line-of-sight (NLOS ---- NO LINE OF SIGHT), stable transmission of audio and video signals in motion

Fig
Fig

○ Long-distance transmission: the transmission distance is more than 5-10 kilometers, strong diffraction ability and penetration ability

○ High-definition picture quality: one channel of video and two channels of audio signals can be input synchronously, supporting HDMI high-definition signal input

○ H.264 image compression method, 1080i / P full HD image

Dimensions (unit: mm, weight: 56g)

Fig
 
power supply
Working voltage V
DC7V-16.8V
Working current A
Radio frequency
Operating frequency range MHz
328-352MHz / 560-760MHz / 1.2-1.5GHz / 2-2.5GHz (see the body label for details)
Channel center frequency MHz
338MHz / 595MHz / 1.2GHz / 2.4GHz (see the body label for details)
Center frequency shift
± 20Hz
RF bandwidth MHz
1.5/2/3MHz,4MHz,6/7/8MHz
Output power dBm
≥22dBm / IL = 1
Power adjustable range
15dB
Carrier-to-noise ratio C / N
≥28dB @ 22dBm
Spurious emission
≤-36dBm (outside the carrier center frequency fc ± 5MHz)
Modulation method (S / N)
COFDM
Constellation modulation
QPSK, 16QAM, 64QAM optional
Forward error correction code rate
1/2, 2/3, 3/4, 5/6, 7/8 optional
Guard interval
1/4, 1/8, 1/16, 1/32 optional
CVBS
Video coding
H.264
Enter video amplitude
Input video format
PAL/NTSC
Video white bar amplitude mV
650 ~ 720mV
Video sync amplitude mV
260~275mV
Input audio
Left and right channels, stereo
HDMI
version
HDMI 1.4a
HDCP protocol
stand by
Encoding support
Audio and video rate
64, 96, 112, 128, 160, 192, 224, 256, 320, 384Kbps adjustable
Audio encoding method
Mpeg1 Layer 2
Video resolution
Minimum 720 * 480 50i (720 * 576 50i); maximum 1920 * 1080 60P
format
YCbCr4:2:0
Video encoding method
H.264
Video rate
500kbps-16.68Mbps
interface
RS232 control interface
Standard RS232 level
RS232 data interface
Standard RS232 level, support 1200 ~ 115200 bps
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