⎝⎛叫我棋牌⎞⎠

LA-HD7900M CFDOM multi-channel SDI ultra-low-latency HD wireless transmission equipment

Main Products: wireless monitoring, wireless monitoring equipment, wireless video transmission, wireless monitoring system, wireless video monitoring

LA-HD7900M COFDM multi-channel high-definition ultra-low-latency wireless video transmission equipment adopts COFDM (Coded Orthogonal Frequency Division Multiplexing) modulation technology. Anti-multipath fading capability, can realize non-line-of-sight (NLOS), real-time transmission of high-quality images under high-speed motion.

The system adopts H.265 digital video coding standard, and outputs high-definition HD1080P image quality with a resolution of 1920 * 1080 (backward compatible with 1080I, 720P, 480P and standard definition).

Widely used in drones, unmanned vehicles, unmanned ships, special robots (disaster relief, rescue, forest fire prevention), three defense emergency communications, broadcast and television broadcasting; field investigations by individual soldiers; public security, armed police, investigators and command vehicles or Command center image transmission; high-quality real-time transmission of maritime video in border anti-smuggling, maritime, and coastal defense areas; real-time ⎝⎛叫我棋牌⎞⎠ gathering and broadcasting of live broadcasts; wireless radio transmission of helicopters and airships for aerial detection and monitoring. Military reconnaissance, border defense patrol, public security technical reconnaissance, aerial photography, aerial mapping, power inspection, railway rescue, maritime law enforcement, urban management law enforcement, confidential interviews, health and epidemic prevention or emergency command, unmanned vehicles, unmanned ships, special Robots and other fields.



Appearance of equipment: if there is any change, the actual product shall prevail

    

Transmitter receiver

  • H.265 compression, frame rate up to 60P

  • Encoding, air transmission, decoding delay 30MS

  • Support 1 ~ 4 HD SDI video signals input at the same time

  • Has strong anti-interference ability and non-line-of-sight diffraction ability

  • Wide voltage input DC7-16V

  • One HD HDMI output

  • Can switch any channel or display multiple channels at the same time

  • Clear picture quality up to 1080p

  • The LCD display interface of the receiver is clear and clear, making human-computer interaction easier and more convenient.

  • Diversity dual antenna reception for clearer and smoother real-time images

  • Support power customization 0.5 ~ 30W



Transmitter parameters:


working frequency 300MHz ~ 860MHz, frequency customization
RF power (支持定制) 0.5 ~ 30W (support customization)
Channel bandwidth 2 / 2.5 / 4 / 8MHz
FEC 1/2, 2/3, 3/4, 5/6, 7/8
Guard interval 1/32, 1/16, 1/8, 1/4
Channel capacity 5Mbps ~ 31Mbps
Delay ≤30ms
Bit error rate ≤10-6
Audio and video compression format H.265
Transmission distance
Ground line of sight> 3 km; air-to-ground> 20 km; non line of sight> 500 m
Video interface 1 ~ 4 SDI signal input
encryption Support 128-bit encryption
One-way transparent serial port Supports one-way transparent serial transmission. (Requires the cooperation of the decryption board)
Image definition HD1080P, backward compatible with 1080I, 720P, 480P and SD
Image frame rate 720 50P, 720 60P, 1080 24P, 1080 25P, 1080 30P, 1080 50P, 1080 60P, various modes adaptive
power supply DC7 ~ 16V (battery DC7.2V / 1400mA or 2200mA, providing external power supply interface)
Dimensions L482 * W250 * H80mm (2U)
weight 5KG


Receiver parameters:



working frequency

160MHz ~ 860MHz

Channel bandwidth

1.0MHz ~ 8.0MHz, 0.1MHz step

IFFT

2K, 8K

Guard interval

1/4, 1/8, 1/16, 1/32

FEC

1/2, 2/3, 3/4, 5/6, 7/8

Modulation mapping

QPSK (4QAM), 16QAM, 64QAM

video

H.265 HD HDMI output

Support encryption function

128-bit supported keys

One-way transparent serial port

Supports one-way transparent serial transmission

Stop bit

Support odd parity, even parity, no parity
Baud rate

1200, 2400, 4800, 9600, 19200, 38400

57600, 115200, 230400

Channel 47
Sensitivity

-106dBm

Receiving technology Space diversity
Receive polarization

Vertical polarization, dual antenna reception

Image definition

HD1080P, backward compatible with 1080I, 720P, 480P and SD

Image frame rate

24, 50, 60 frames / second, compatible with other frame rates

Video output One HDMI output
Screen change Support single-screen or multi-screen free switching
power supply DC12V / 1A
Dimensions 482.6 * 200 * 44 (1U chassis)
weight 1.5Kg



Channel capacity table with different parameters

Modulation

Internal error correction code

Guard interval

1/4 (224us)

1/8 (112us)

1/16 (56us)

1/32 (28us)

QPSK

1/2

4.98Mb / s

5.53Mb / s

5.85Mb / s

6.03Mb / s

2/3

6.64Mb / s

7.37Mb / s

7.81Mb / s

8.04Mb / s

3/4

7.46Mb / s

8.29Mb / s

8.78Mb / s

9.05Mb / s

5/6

8.29Mb / s

9.22Mb / s

9.76Mb / s

10.05Mb / s

7/8

8.71Mb / s

9.68Mb / s

10.25Mb / s

10.56Mb / s

16QAM

1/2

9.95Mb / s

11.06Mb / s

11.71Mb / s

12.06Mb / s

2/3

13.27Mb / s

14.75Mb / s

15.61Mb / s

16.09Mb / s

3/4

14.93Mb / s

16.59Mb / s

17.56Mb / s

18.10Mb / s

5/6

16.59Mb / s

18.43Mb / s

19.52Mb / s

20.11Mb / s

7/8

17.42Mb / s

19.35Mb / s

20.49Mb / s

21.11Mb / s

64QAM

1/2

14.93Mb / s

16.59Mb / s

17.56Mb / s

18.10Mb / s

2/3

19.91Mb / s

22.12Mb / s

23.42Mb / s

24.13Mb / s

3/4

22.39Mb / s

24.88Mb / s

26.35Mb / s

27.14Mb / s

5/6

24.88Mb / s

27.65Mb / s

29.27Mb / s

30.16Mb / s

7/8

26.13Mb / s

29.03Mb / s

30.74Mb / s

31.67Mb / s


龙博线上娱乐 和丰娱乐 新宝1娱乐 手机电玩平台