Wireless Video Receiver
COFDM-221R 高畫質無線視訊接收器 COFDM AV 1080P 傳輸影像收發器 CVBS 170~900Mhz
目錄
特徵
- 1. 現在支援 DVB-T / DVB-T2 + 高速;
- 2. 支援H.264/AVC, MPEG2~MPEG4高畫質影片解碼;
- 3. 可透過USB插槽升級韌體;
- 4. USB錄音機, 個人錄影, 多媒體播放, 支援硬碟;
- 5. 自動搜尋並更新碼率信息;
- 6. Small size design lightweight. Professional diversity receiver;
- 7. 斷電記憶功能;
- 8. 多語言支援: English, 俄文, 泰國, 西班牙語, 等等;
- 9. Particularly suitable for use in complex environments;
- 10. 6兆赫, 7兆赫, 8MHz 頻寬;
- 11. 高畫質輸出 (一條路線);
- 12. 2x 視訊輸出, 立體聲音頻-R, 音訊-L 輸出;
- 13. 支援IR輸出和擴充遙感接收器;
- 14. DC Power jack, 一個點煙器即可輕鬆連接
- 15. 10~32V寬電源, 專為汽車或公車設計.
規範
- 輸入頻率: VHF 170-900MHz
- 調製: QPSK/16 – QAM/256-QAM
- 解碼標準: MPEG4,MP@ML,MP@HL,H.264/AVC
- 兩路CVBS RCA + 1路高清輸出
- 電源: 直流12V~26V 5W
Product information
| 品牌名稱: | 代加工 |
| 型號: | COFDM-221R |
| Certification: | CE Applicable |
| 產地: | 中國 |
| MOQ: | 1件 |
| 價錢: | 美元 |
| Payment Terms: | L/C, T/T, Western Union, MoneyGram Paypal |
| Supply Ability: | 1000pcs per month |
| Delivery Time: | 20 working days |
| 包裝細節: | 紙箱 |
| Output frequency: | 46-860兆赫; per 0.5MHz adjustable |
| 調製類型: | COFDM |
| 音訊輸出: | 立體聲 |
| 視訊壓縮: | H.264 MPEG2-MPEG4 |
| 視訊輸出: | CVBS, HDMI |
| 接收靈敏度: | -80分貝 |
| 加密 | AES-128 bit |




Overview
The COFDM-221R 是專業級的 HD wireless video receiver designed to provide reliable, high-quality video reception from COFDM wireless video transmitters. 利用 COFDM (編碼正交頻分複用) 科技, this receiver ensures 穩定的, interference-resistant reception, even in complex and high-multipath environments. It supports a broad range of video formats, 包含 H.264/AVC, MPEG2, and MPEG4, providing full compatibility with modern HD and legacy video sources.
The COFDM-221R is capable of receiving 1080P Full HD video, 也 720P HD and standard-definition video, ensuring versatility for professional applications. The receiver is compatible with various input sources, 包含 HD wireless transmitters, composite CVBS signals, and DVB-T/DVB-T2 digital signals, 使其非常適合 UAV video downlinks, 移動廣播, field surveillance, 緊急通訊, 和工業監控.
袖珍的, 輕的, and portable, the COFDM-221R is designed for on-the-go applications, with wide DC power supply support (10–32V), making it perfect for in-vehicle use, 移動指揮中心, and remote monitoring stations. 它是 user-friendly interface, USB firmware upgrade capability, PVR recording, and multimedia playback make it a complete solution for professional video reception and management.
Key Advantages
- High-Definition Video Reception
- 支援 1080P Full HD video, HD 720P, and SD 480P, providing high-quality images with sharp detail and vibrant colors.
- Compatible with multiple video compression standards, 包含 H.264/AVC, MPEG2, and MPEG4, ensuring versatility for diverse broadcast and surveillance systems.
- Reliable COFDM Reception
- COFDM technology provides strong resistance to multipath interference, 褪色, and signal loss, 使其非常適合 mobile and complex environments.
- Wide frequency coverage (170–900 MHz) allows operation with a variety of transmitters and customized deployments.
- 便攜輕量化設計
- Compact size and low weight make the COFDM-221R easy to deploy on 車輛, 無人機, 移動指揮中心, or handheld setups.
- Professional-grade diversity reception ensures consistent signal strength even in challenging environments.
- Low-Latency and Real-Time Performance
- Optimized for high-speed transmission systems, ensuring video latency is minimal and suitable for real-time monitoring and control.
- Flexible Power and Integration
- 支援 DC 10–32V input, making it compatible with vehicles, 公車, or other mobile platforms.
- DC power jack and cigarette-lighter adapter simplify mobile power connections.
- 安全傳輸
- 支援 AES-128 encryption, ensuring secure video reception for sensitive or private operations.
- Multifunctional Capabilities
- 內建 USB PVR recording, media playback, and firmware upgrade functionality via USB.
- Auto-searching and updating of bitrate information allows quick deployment without manual configuration.
- 人性化操作
- Multi-language support includes English, 俄文, 泰國, 西班牙語, 還有更多.
- Memory function preserves settings after power off.
- IR remote control and extended remote sensor support for easy operation.
產品特點
- Wide Video Format Support
- Supports HD H.264/AVC, MPEG2, and MPEG4 decoding for maximum compatibility.
- Handles Full HD 1080P, 720P HD, and SD resolutions, ensuring smooth video across multiple platforms.
- Professional Diversity Reception
- Dual antenna input for improved signal stability and resistance to multipath fading.
- Particularly suitable for high-speed mobile platforms or complex NLOS environments.
- High Sensitivity and Signal Quality
- 接收靈敏度: -80 分貝, ensuring reliable reception over extended distances and through environmental interference.
- 支援 6/7/8 MHz bandwidths to match transmitter configurations.
- Multiple Output Interfaces
- Video outputs include HDMI for HD displays and CVBS複合材料 for legacy systems.
- Audio outputs provide stereo left and right channels for professional audio monitoring.
- USB Functionality
- USB PVR recording allows for storing video on connected hard drives.
- Firmware upgrades via USB ensure the receiver remains compatible with new standards and features.
- USB media playback supports common formats such as AVI, MP4, MP3, JPG, and BMP.
- Flexible Frequency Control
- Input frequency range: VHF 170–900 MHz, adjustable in 0.5 MHz steps.
- Supports DVB-T/DVB-T2 reception for professional broadcasting and field deployments.
- 緊湊耐用的設計
- Lightweight and small form factor for portability.
- 專為 professional field use, including vehicles, 公車, 無人機, or handheld operations.
- Enhanced User Experience
- Auto-searching for channels and automatic bitrate updates reduce setup time.
- Multi-language OSD and menu options allow quick operation by international users.
- Memory retention preserves user settings even after power loss.
- Versatile Installation Options
- DC power input 10–32V supports installation in cars, 公車, mobile command units, or standalone setups.
- IR remote control support for convenient operation in vehicle or field conditions.
- Secure and Reliable Operation
- AES-128 encryption ensures video streams are secure and accessible only to authorized receivers.
- COFDM modulation guarantees interference-resistant and stable video transmission, even in urban or high-density RF environments.
技術規格
| 範圍 | 規範 |
|---|---|
| 輸入頻率 | VHF 170–900 MHz |
| 調製類型 | COFDM |
| Video Decoding Standard | H.264/AVC, MPEG2, MPEG4 |
| 視訊解析度 | 1080P, 720P, 標清 |
| 視訊輸出 | HDMI, CVBS (composite) |
| 音訊輸出 | Stereo L + R |
| 接收靈敏度 | -80 分貝 |
| 加密 | AES-128 bit |
| 帶寬 | 6/7/8 MHz可調 |
| PVR/USB Recording | 是 |
| Firmware Upgrade via USB | 是 |
| 多語言支援 | English, 俄文, 泰國, 西班牙語, 其他的 |
| 電源 | DC 10–32V |
| 能量消耗 | 5W¯¯ |
| 方面 | 袖珍的, 輕的 |
| 多元化接待 | 是, 雙天線 |
| IR Remote Support | 是 |
| Multi-Function Output | HDMI, CVBS, 聲音的, USB |
應用
The COFDM-221R HD Wireless Video Receiver is suitable for a wide range of professional applications:
- UAV and Drone Video Downlink
- Provides real-time Full HD video reception from UAV-mounted transmitters.
- Supports mobile operators with NLOS capability for urban or forested environments.
- Mobile and Vehicle-Based Broadcasting
- Ideal for live news reporting, mobile production units, and field coverage.
- Wide DC power range allows seamless integration in cars, 公車, and mobile command vehicles.
- Public Safety and Law Enforcement
- Suitable for police, 邊境巡邏, 緊急回應, and firefighting units.
- Supports secure video transmission with AES-128 encryption.
- Industrial Monitoring and Surveillance
- Monitors remote industrial sites, 管道, or infrastructure in HD quality.
- Handles multipath environments common in urban and industrial areas.
- Event Broadcasting
- Captures and relays live events, 運動的, and concerts with high-definition video.
- Supports multiple output options for monitoring stations or production setups.
- 緊急通訊
- Provides reliable video reception for disaster relief, 搜救, and on-site coordination.
Optional Features and Customization
- Extended Frequency Support: Can be customized for other frequency bands beyond 170–900 MHz.
- Firmware Upgrades: USB upgradeable to support future video standards or additional functionalities.
- Custom Output Interfaces: Additional HDMI or CVBS outputs upon request.
- Extended Diversity Options: Dual or multi-antenna options for improved signal reliability.
- Vehicle-Specific Adaptations: Custom DC input connectors or mountings for cars, 公車, and UAV platforms.
- 安全通訊: Optional advanced AES or proprietary encryption modules.
結論
The COFDM-221R HD Wireless Video Receiver 是一個 專業的, 多才多藝的, and highly reliable solution for receiving HD wireless video in real-time. Its combination of 正交頻分複用技術, H.264/MPEG2/MPEG4 decoding, wide frequency coverage, and ultra-stable NLOS reception makes it suitable for UAVs, 移動廣播, 公安, 工業監控, and emergency communications.
和 multi-functional USB support, PVR recording, dual video and audio outputs, and secure AES encryption, the COFDM-221R provides an all-in-one solution for professional video reception needs. 它是 袖珍的, 輕量化設計, broad power compatibility, and user-friendly interface allow seamless integration into mobile and field applications, ensuring reliable HD video reception even in complex environments.
無論是為了 real-time UAV monitoring, 移動廣播, 緊急回應, 或工業檢驗, the COFDM-221R delivers high-definition video with robust stability, 安全, and professional performance.

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