Receptor transmissor de vídeo SD CVBS AV barato para drones FPV

Receptor transmissor de vídeo SD CVBS AV barato para drones FPV

Transmissor de vídeo sem fio COFDM & Receiver – Long-Range, Seguro, Baixa latência

Introdução

The COFDM-912T Wireless Video Transmitter and Receiver system is a professional-grade solution designed for longo alcance, real-time video and data transmission. Built on advanced COFDM (Multiplexação por divisão de frequência ortogonal codificada) tecnologia de modulação and high-performance MPEG-2/H.264 video compression, this system delivers estável, resistente a interferências, and encrypted digital video links for UAVs, na UGV, monitoramento de segurança, reconhecimento militar, transmissão ao vivo, and other demanding applications.

Unlike conventional analog systems, COFDM technology ensures reliable video quality in both Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS) condições, even in complex environments such as urban areas, florestas, e terreno montanhoso. Com integrated PA (Amplificador de potência) modules of 1W or 2W, the system can achieve transmission distances of up to 30 km LOS e 1.5 km 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 (transmissor, receptor, antenas, e cabos) 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, live event broadcasting, or covert surveillance operations, this wireless transmission system offers seguro, baixa latência, and reliable performance in every scenario.

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Principais recursos

• Modulação COFDM avançada
  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.

• Longo alcance de transmissão

  • Até 30 km LOS (Linha de visão) with a 2W power amplifier.

  • Até 1.5 km NLOS (Sem linha de visão) em ambientes urbanos ou obstruídos.

• Low Latency Video Transmission
  End-to-end latency of 200–300ms, suitable for FPV, UAV control, e aplicativos de monitoramento ao vivo.

• Dual Input & Saída

  • Transmissor: CVBS (DE) analog input.

  • Receptor: DE (CVBS) + HDMI digital output.

• Video + Data Downlink
  Supports simultaneous transmissão de vídeo e transparent UART data downlink, enabling telemetry or sensor data transfer from the transmitter to the receiver.

• Configurable Frequency
  Frequency can be modified via a placa de configuração de parâmetros, supporting custom frequencies within 170–860 MHz faixa.

• Multiple Modulation & Opções de largura de banda
  Suporta QPSK, 16Controle de qualidade, and 64QAM modulation with adjustable bandwidths from 2 MHz para 8 MHz.

• Compactar & Design leve
  Small form factor with rugged aluminum housing for easy integration into UAVs, veículos, or portable systems.

• Full Set Package
  Includes transmitter, receptor, antenas, e cabos, ready for immediate deployment.

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Especificações

Transmissor (COFDM-912T)

• Tensão operacional: DC 11V ~ 13V (20W PA requires 24V–28V)

• Consumo Atual: ≤1.5A @ 12V (2Em PA)

• Entrada de vídeo: CVBS composite video (PAL by default, NTSC optional)

• Codificação de vídeo: MPEG-2 / H.264

• Resolução: 720×576 @ ≥4 Mbps stream

• Interface de dados: UART one-way transparent transmission

• Baud Rates: 1200 para 230400 bps

• Encryption: AES-128 supported

• Mapeamento de Modulação: QPSK, 16Controle de qualidade, 64Controle de qualidade

• Correção de erro de encaminhamento (FEC): 1/2, 2/3, 3/4, 5/6, 7/8

• Operadoras: 2K

• Alcance de frequência: 170–860 MHz (personalizável; stock 300 MHz & 600 MHz models)

• Largura de banda: Ajustável 2/3/4/5/6/7/8 MHz

• Potência de transmissão: 1W ou 2W (5W/10W/20W optional)

• Dimensões: 90 × 65 × 22 milímetros

• Habitação: Alumínio, anticorrosão, à prova de choque

Receptor

• Tensão operacional: 12V CC <0.3UMA

• RF Input Range: 170–860 MHz

• Largura de banda: 2–8 MHz ajustável

• Nível de entrada RF: -98 dBm ~ 0 dBm (depending on bandwidth)

• Impedância de entrada: 50 Oh (AME feminina)

• Demodulação: COFDM

• Constellation Modes: QPSK, 16Controle de qualidade, 64Controle de qualidade

• FEC Options: 1/2, 2/3, 3/4, 5/6, 7/8

• Output Video: CVBS (3.5mm AV), HDMI

• Resolução: 720×576 @ 6 MHz

• Temperatura de operação: -20 °C ~ +50 °C

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Aplicações

• Veículos aéreos não tripulados (UAVs / Drones)
  Real-time FPV video streaming from drones to ground stations. Recommended with optional band-pass wave filters for improved anti-interference.

• Veículos Terrestres Não Tripulados (na UGV) & Robótica
  Provides wireless video feedback and telemetry data in complex ground operations.

• Segurança & Aplicação da lei
  Ideal para vigilância secreta, tactical reconnaissance, and border monitoring, thanks to its compact size and encryption support.

• Radiodifusão & Eventos ao vivo
  Used in transmissão esportiva, outdoor live events, and news reporting to transmit high-quality video over long distances.

• Marinho & Mountainous Environments
  Reliable performance in challenging terrains where standard RF systems fail.

• Militares & Segurança Pública
  Deployed in field reconnaissance, resposta de emergência, and disaster recovery, providing stable video feeds under harsh conditions.

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Opções personalizáveis

• Personalização de banda de frequência
  Available in 170–860 MHz faixa, with support for specific customer-requested frequencies such as 260 MHz, 450 MHz, 610 MHz, 970 MHz, 1180 MHz, 1230 MHz, etc..

• Opções de amplificador de potência
  Padrão: 1W ou 2W.
  Optional upgrades: 5W, 10W, 20W for extended range applications.

• Video Input/Output Formats

  • AMIGO (padrão)

  • NTSC (optional upon request)

  • Entrada HDMI (available in higher models)

• Relay Transmission Solutions
  Integration with vehicle-mounted or portable relay systems to extend coverage beyond 30 km.

• Opções de antena

  • Omni-directional fiberglass antennas for general use.

  • Antenas direcionais de alto ganho for maximum range.

• Transmissão de dados
  Suporta UART telemetry data + vídeo in one system (simples, downlink only).

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Advantages Over Conventional Systems

1. Cheaper Yet Longer Range – Compared with traditional analog transmitters or IP mesh systems, COFDM provides maior estabilidade at a lower cost.

2. Strong NLOS Capability – Works effectively in urban blocks, florestas, and moving vehicles where other systems fail.

3. Compacto e leve – Ideal for UAV integration, with transmitter weights as low as 154 gramas.

4. Integrated Signal Monitoring – Receiver’s built-in screen displays signal strength, helping users adjust antenna positioning for optimal performance.

5. Expandable Solutions – From small portable UAV sets para high-power vehicle relay systems, scalable to meet any professional need.

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Segurança & Usage Warnings

• Always connect the antenna before powering on the transmitter to avoid damaging the PA (Amplificador de potência).

• Place antennas in elevated and unobstructed locations for the best performance.

• Maintain proper antenna height difference between transmitter and receiver for improved link stability.

• Do not block antennas during operation to prevent signal attenuation.

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O pacote inclui

• 1 × COFDM Transmitter

• 1 × COFDM Receiver

• 2 × Antennas (Texas & Lado RX)

• 1 × Accessories Cable Set

 

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Conclusão

The COFDM-912T Wireless Video Transmitter & Receiver system combines desempenho de longa distância, robust encryption, and flexible customization, making it an ideal solution for UAV, segurança, and broadcasting applications. Isso é tamanho pequeno, baixa latência, and reliable COFDM modulation set it apart from conventional video transmission systems, ensuring professional users get a cost-effective, estável, and secure wireless link in both LOS and NLOS conditions.

With multiple frequency, poder, 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, ou relay systems for ultra-long range, this product delivers performance that is both cheaper and longer-lasting.

Perguntas frequentes

1º trimestre: How does Point-to-Multipoint (P2MP) work, and how many receivers can connect to one transmitter?

UMA: 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.
Em teoria, there is no fixed limit to the number of receivers; portanto, the maximum number cannot be precisely specified and depends on practical deployment conditions.

2º trimestre: Is the IVCAN COFDM system compatible with third-party or existing transmitters and receivers?

UMA: Compatibility depends on multiple technical factors, including frequency, largura de banda, modulação, 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.