COFDM Wireless AV SD 720P Video Transmitter
COFDM Wireless AV SD 720P Video Transmitter Receiver Transmission composite CVBS in H.264 COFDM-912
賣點
支援 加密
1W RF output;
SD 720P composite CVBS in
支援 非視距 LOS transmission
H.264/MPEG-2;
Delay <300 Millisecond;
特徵
- 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, real-time, 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 (非視距) mobile transmission for longer distance
應用領域
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
規格
發射機:
Operating Voltage: DC11V~DC13V
Operating Voltage: DC11V~DC13V
Working current: 2瓦: ≤1.5A DC12V,
Transparent data interface: One-way transparent serial port transmission, 8-bit data bit, 1 停止位, support odd parity, 偶校驗, wireless check, 波特率: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 230400
加密 : Support 128-bit encryption
Modulation mapping: 四相相移鍵控 (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
發射功率: 1瓦
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
梅爾: 32Db
Input video: 1峰壓, 75 歐姆
Video and audio interface frequency: RCA
Video encoding Format: MPEG-2
Image Quality: 720×576 when larger than 4M code stream
影片格式: NTSC, PAL可設定
Protection standard: All-aluminum radiator type chassis, anti-corrosion, shockproof design
接收者:
frequency range: 170-860MHz VHF&超高頻
Frequency bandwidth: 2/3/4/5/6/7/8兆赫茲, adjustable
RF input level : -94分貝~0分貝 (at 8M bandwidth) /-98分貝~0分貝 (2M bandwidth)
RF input impedance: 50 歐姆
RF input connector: SMA 女性
Demodulation method: 正交頻分複用
Constellation mode : 四相相移鍵控, 16QAM, 64QAM (選修的)
Forward error correction: 1/2, 2/3, 3/4, 5/6, 7/8 (選修的)
Number of carriers: 2k,
Protection interval : 1/32, 1/16, 1/8, 1/4 (選修的)
Video decoding: MPEG-2MP@ML
Screen aspect ratio: 4:3 16:9
Video image: 720*576@6MHz
Video and audio output interface: 標準 3.5 介面
Operating Voltage : DC12V <0.3一個
工作溫度 : -20 ° C ~ +50 ° C
常問問題
畫廊
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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 (非視距) 表現; 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, 安全的, and professional-grade wireless video transmission, this unit is worth every penny and performs flawlessly