Дешевый приемник видеопередатчика SD CVBS AV для дронов FPV
Беспроводной передатчик видео COFDM & Receiver – Long-Range, Безопасный, Low-Latency
Оглавление
Введение
The COFDM-912T Wireless Video Transmitter and Receiver system is a professional-grade solution designed for дальнобойный, real-time video and data transmission. Built on advanced COFDM (Кодированное мультиплексирование с ортогональным частотным разделением) технология модуляции and high-performance MPEG-2/H.264 video compression, эта система обеспечивает стабильный, interference-resistant, and encrypted digital video links for UAVs, в УГВ, мониторинг безопасности, военная разведка, прямая трансляция, and other demanding applications.
Unlike conventional analog systems, COFDM technology ensures reliable video quality in both Line-of-Sight (ЛОС) and Non-Line-of-Sight (NLOS) условия, even in complex environments such as urban areas, леса, и гористая местность. С integrated PA (Усилитель мощности) modules of 1W or 2W, the system can achieve transmission distances of up to 30 км ЛОС и 1.5 км NLOS, making it a cost-effective yet powerful option for long-range wireless communication.
Compact in design, rugged in structure, and easy to deploy, the COFDM-912T is available as a complete set (передатчик, получатель, антенны, and cables) and supports both CVBS AV input and HDMI output, ensuring broad compatibility with a wide range of cameras and display devices. Whether used for FPV drone video links, прямая трансляция событий, or covert surveillance operations, this wireless transmission system offers безопасный, с низкой задержкой, and reliable performance in every scenario.
Ключевая особенность
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Расширенная модуляция COFDM
Provides robust performance against multipath interference, enabling clear video transmission in both LOS and NLOS environments. -
AES-128 Video Encryption
Built-in secure encryption ensures that your video data is protected against unauthorized access or interception. -
Большой диапазон передачи
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До 30 км ЛОС (Прямая видимость) with a 2W power amplifier.
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До 1.5 км NLOS (Вне прямой видимости) in urban or obstructed environments.
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Low Latency Video Transmission
End-to-end latency of 200–300 мс, suitable for FPV, UAV control, and live monitoring applications. -
Dual Input & Выход
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Передатчик: CVBS (ИЗ) analog input.
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Получатель: ИЗ (CVBS) + HDMI digital output.
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видео + Data Downlink
Supports simultaneous передача видео и transparent UART data downlink, enabling telemetry or sensor data transfer from the transmitter to the receiver. -
Configurable Frequency
Frequency can be modified via a плата конфигурации параметров, supporting custom frequencies within 170–860 МГц диапазон. -
Multiple Modulation & Параметры пропускной способности
Поддерживает КФСК, 16QAM, and 64QAM modulation with adjustable bandwidths from 2 МГц до 8 МГц. -
Компактный & Легкий дизайн
Small form factor with rugged aluminum housing for easy integration into UAVs, транспортные средства, or portable systems. -
Full Set Package
Includes transmitter, получатель, антенны, and cables, ready for immediate deployment.
Технические характеристики
Передатчик (КОФДМ-912Т)
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Рабочее напряжение: DC 11V ~ 13V (20W PA requires 24V–28V)
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Текущее потребление: ≤1.5A @ 12V (2В Пенсильвании)
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Видео вход: CVBS composite video (PAL by default, NTSC optional)
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Кодирование видео: MPEG-2 / H.264
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Разрешение: 720×576 @ ≥4 Mbps stream
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Интерфейс данных: UART one-way transparent transmission
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Baud Rates: 1200 в 230400 б/с
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Шифрование: AES-128 supported
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Отображение модуляции: КФСК, 16QAM, 64QAM
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Прямое исправление ошибок (ТЭК): 1/2, 2/3, 3/4, 5/6, 7/8
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Перевозчики: 2К
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Диапазон частот: 170–860 МГц (настраиваемый; stock 300 МГц & 600 MHz models)
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Пропускная способность: Регулируемый 2/3/4/5/6/7/8 МГц
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Мощность передачи: 1W or 2W (5W/10W/20W optional)
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Габаритные размеры: 90 × 65 × 22 мм
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Жилье: Алюминий, антикоррозийный, противоударный
Получатель
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Рабочее напряжение: 12 В постоянного тока <0.3А
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RF Input Range: 170–860 МГц
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Пропускная способность: 2–8 MHz adjustable
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Уровень РЧ-входа: -98 dBm ~ 0 дБм (в зависимости от пропускной способности)
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Входное сопротивление: 50 Ой (СМА женский)
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Демодуляция: COFDM
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Constellation Modes: КФСК, 16QAM, 64QAM
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Опции ФЭК: 1/2, 2/3, 3/4, 5/6, 7/8
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Output Video: CVBS (3.5mm AV), HDMI
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Разрешение: 720×576 @ 6 МГц
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Рабочая температура: -20 °C ~ +50 °С
Приложения
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Беспилотные летательные аппараты (БПЛА / Дроны)
Real-time FPV video streaming from drones to ground stations. Recommended with optional band-pass wave filters for improved anti-interference. -
Unmanned Ground Vehicles (в УГВ) & Робототехника
Provides wireless video feedback and telemetry data in complex ground operations. -
Безопасность & Правоохранительные органы
Идеально подходит для скрытое наблюдение, tactical reconnaissance, and border monitoring, thanks to its compact size and encryption support. -
Вещание & Живые события
Используется в спортивное вещание, outdoor live events, and news reporting to transmit high-quality video over long distances. -
Морской & Mountainous Environments
Reliable performance in challenging terrains where standard RF systems fail. -
Военный & Общественная безопасность
Deployed in field reconnaissance, реагирование на чрезвычайную ситуацию, and disaster recovery, providing stable video feeds under harsh conditions.
Настраиваемые параметры
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Frequency Band Customization
Available in 170–860 МГц диапазон, with support for specific customer-requested frequencies such as 260 МГц, 450 МГц, 610 МГц, 970 МГц, 1180 МГц, 1230 МГц, и т. д.. -
Варианты усилителя мощности
Стандартный: 1W or 2W.
Optional upgrades: 5W, 10W, 20W for extended range applications. -
Video Input/Output Formats
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ПАЛ (по умолчанию)
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NTSC (optional upon request)
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HDMI-вход (available in higher models)
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Relay Transmission Solutions
Integration with vehicle-mounted or portable relay systems to extend coverage beyond 30 км. -
Варианты антенны
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Omni-directional fiberglass antennas for general use.
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Направленные антенны с высоким коэффициентом усиления for maximum range.
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Передача данных
Поддерживает UART telemetry data + видео in one system (simplex, downlink only).
Advantages Over Conventional Systems
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Cheaper Yet Longer Range – Compared with traditional analog transmitters or IP mesh systems, COFDM provides более высокая стабильность at a lower cost.
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Strong NLOS Capability – Works effectively in urban blocks, леса, and moving vehicles where other systems fail.
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Компактный и легкий – Ideal for Интеграция БПЛА, with transmitter weights as low as 154 граммы.
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Integrated Signal Monitoring – Receiver’s built-in screen displays signal strength, helping users adjust antenna positioning for optimal performance.
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Expandable Solutions – From small portable UAV sets в high-power vehicle relay systems, scalable to meet any professional need.
Безопасность & Usage Warnings
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Always connect the antenna before powering on the transmitter to avoid damaging the PA (Усилитель мощности).
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Place antennas in elevated and unobstructed locations for the best performance.
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Maintain proper antenna height difference between transmitter and receiver for improved link stability.
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Do not block antennas during operation to prevent signal attenuation.
Пакет включает в себя
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1 × COFDM Transmitter
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1 × COFDM Receiver
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2 × Antennas (Техас & сторона приема)
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1 × Accessories Cable Set

Заключение
The COFDM-912T Wireless Video Transmitter & Receiver system combines long-distance performance, robust encryption, and flexible customization, making it an ideal solution for UAV, безопасность, и вещательные приложения. Его маленький размер, низкая задержка, and reliable COFDM modulation set it apart from conventional video transmission systems, ensuring professional users get a экономически эффективный, стабильный, and secure wireless link in both LOS and NLOS conditions.
With multiple frequency, власть, and input/output options available, the COFDM-912T can be tailored to meet diverse application requirements. Whether you need 10 km for drone FPV, 30 km for air-to-ground video, или relay systems for ultra-long range, this product delivers performance that is both cheaper and longer-lasting.
Вопросы-Ответы
1 квартал: How does Point-to-Multipoint (П2МП) work, and how many receivers can connect to one transmitter?
А: Our COFDM video transmission system operates in a broadcast mode, similar to a TV broadcasting station. One transmitter can send the same wireless signal to multiple receivers simultaneously.
As long as the receivers are within the effective signal coverage area and configured to the same frequency and parameters, they can all receive the signal at the same time.
В теории, there is no fixed limit to the number of receivers; поэтому, the maximum number cannot be precisely specified and depends on practical deployment conditions.
Q2: Is the IVCAN COFDM system compatible with third-party or existing transmitters and receivers?
А: Compatibility depends on multiple technical factors, включая частоту, пропускная способность, модуляция, and transmission protocol. Without detailed specifications or actual testing, compatibility with third-party or existing equipment cannot be confirmed. To ensure accurate results, compatibility testing is required before we can provide a definitive answer.
Customers are welcome to share detailed technical information about their existing devices so we can evaluate potential compatibility or recommend appropriate testing solutions.






iVcan.com –
I recently purchased the COFDM Wireless Video Transmitter and Receiver for my FPV drone, и я очень впечатлен его работой. The signal is incredibly stable even in challenging urban and NLOS environments, and the low latency ensures real-time video transmission without noticeable lag. Setting up the transmitter and receiver was straightforward, and the AES128 encryption gives me peace of mind knowing my video feed is secure. The full set, including antennas and cables, worked flawlessly out of the box, and the video quality is consistently clear and reliable. Highly recommended for professional drone enthusiasts.