COFDM Wireless AV SD 720P Video Transmitter
COFDM Wireless AV SD 720P Video Transmitter Receiver Transmission composite CVBS in H.264 COFDM-912
Điểm bán hàng
Ủng hộ Mã hóa
1W RF output;
SD 720P composite CVBS in
Ủng hộ NLOS LOS transmission
H.264/MPEG-2;
Trì hoãn <300 Millisecond;
Tính năng
- Highly integrated, modular design
- Adopt COFDM.cn modulation technology, MPEG-2 image compression technology
- All-round communication, not afraid of building walls
- High-speed inter-line communication, thời gian thực, stable DVD image quality for audio/video transmission
- Heat sink aluminum housing, shockproof and shock-resistant
- High fidelity digital stereo transmission
- Non-line-of-sight (NLOS) mobile transmission for longer distance
Ứng dụng
This product is mainly used for technical reconnaissance and forensics in the military and security inspection departments. Radio and television broadcast, radio and television live broadcast: broadcasting field, sports broadcast, social news, aerial live, studio, mountain adventure and so on. It is suitable for real-time mobile transmission of high-quality images in many complex environments such as urban, marine and mountainous.
For drone ( recommend to add extra wave filters, need extra cost )
For CCTV
Đặc điểm kỹ thuật
Máy phát:
Operating Voltage: DC11V~DC13V
Operating Voltage: DC11V~DC13V
Working current: 2W: ≤1.5A DC12V,
Transparent data interface: One-way transparent serial port transmission, 8-bit data bit, 1 dừng lại một chút, support odd parity, chẵn lẻ, wireless check, baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 230400
Mã hóa : Support 128-bit encryption
Modulation mapping: QPSK (4QAM), 16QAM, 64QAM
Forward error correction: 1/2 2/3 3/4 5/6 7/8
Protection interval: 1/32 1/16 1/8 1/4
Number of carriers: 2K
Frequency bandwidth: 2/3/4/5/6/7/8M adjustable
Transport stream: 2000kbs~20000kbs adjustable
Transmit power: 1W
Transmission frequency: stock product is around 300mhz which ranges 290-310MHZ ( for many obstacles such as on-ground ) around OR 600mhz with range 590-610mhz around ( for a little obstacle such as in drone in the sky ), it can be customized at any frequency ( 170-860mhz ).
Power flatness: 10MHz in-band less than 0.2dB
Shoulder ratio: When the output power is 27dB, the shoulder ratio is better than -30dB.
Second harmonic: ≤-45dB
MER: 32Db
Input video: 1Vp-p, 75 ôm
Video and audio interface frequency: RCA
Video encoding Format: MPEG-2
Image Quality: 720×576 when larger than 4M code stream
Định dạng video: NTSC, PAL can be set
Protection standard: All-aluminum radiator type chassis, anti-corrosion, shockproof design
Người nhận:
frequency range: 170-860MHz VHF&UHF
Frequency bandwidth: 2/3/4/5/6/7/8MHz, adjustable
RF input level : -94dBm~0dBm (at 8M bandwidth) /-98dBm~0dBm (2M bandwidth)
RF input impedance: 50 ôm
RF input connector: SMA female
Demodulation method: COFDM
Constellation mode : QPSK, 16QAM, 64QAM (không bắt buộc)
Forward error correction: 1/2, 2/3, 3/4, 5/6, 7/8 (không bắt buộc)
Number of carriers: 2k,
Protection interval : 1/32, 1/16, 1/8, 1/4 (không bắt buộc)
Video decoding: MPEG-2MP@ML
Screen aspect ratio: 4:3 16:9
Video image: 720*576@6MHz
Video and audio output interface: Tiêu chuẩn 3.5 giao diện
Operating Voltage : DC12V <0.3MỘT
Nhiệt độ hoạt động : -20 ° C ~ +50 ° C
Câu hỏi thường gặp
Phòng trưng bày
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isdb-t.com_buyer –
This COFDM-912 wireless video system is an absolute game-changer for my live event productions! The setup was surprisingly straightforward. I connected my camera’s composite (CVBS) output to the transmitter, powered on the receiver, and they linked almost instantly. The most impressive feature is the incredible NLOS (Non-Line-of-Sight) hiệu suất; it maintains a rock-solid, high-quality 720p video feed even when transmitting through walls and around corners, which is a huge advantage over other systems. The H.264 encoding ensures the video is sharp and the latency is very low. I feel secure using it thanks to the transmission encryption, knowing my video feed is protected. For anyone needing reliable, chắc chắn, and professional-grade wireless video transmission, this unit is worth every penny and performs flawlessly