Liên kết video HD một chiều cho 50km Độ trễ 50ms bốn tần số

Đây là một nhu cầu.

Chúng tôi cần một liên kết video một chiều cho 50km. Chất lượng video – HD, Độ trễ video 50 mili giây, Khả năng làm việc trên 4 kênh phi tiêu chuẩn độc lập (Tính thường xuyên) để truyền video.

For a unidirectional video link over 50 km với HD quality, 50ms latency, Và four independent non-standard channels, you will need a specialized long-range wireless transmission system. Here are some potential solutions:

1. Microwave or mmWave Links (Licensed or Unlicensed)

• Ưu điểm: Can provide high throughput, độ trễ thấp, and long-range capability.
• Nhược điểm: Requires precise alignment and may need licensing.
• Example System: Ubiquiti AirFiber, Cambium Networks PTP 820

2. COFDM-based Wireless Video Transmitters

• Ưu điểm: Designed for broadcast, robust against interference, and can work on custom frequencies.
• Nhược điểm: More expensive and may require custom tuning.
• Example System: Domo Tactical Communications (DTC), Vislink, Teradek Prism

3. Fiber Optic Link (If Feasible)

• Ưu điểm: Zero latency, highest reliability.
• Nhược điểm: Expensive deployment over 50 km.

4. Custom SDR (Software-Defined Radio) Giải pháp

• Ưu điểm: Can be configured for non-standard frequencies.
• Nhược điểm: Requires significant R&D, spectrum analysis, and tuning.

Những cân nhắc chính:

• Frequencies: What range of non-standard frequencies are available?
• Quyền lực: What are the power and interference constraints?
• LOS (Đường ngắm): 50 km needs a clear path or relay towers.
• Redundancy: Can you use multiple links for fail-over?

The recommended model is 1729, which meets almost all the needs of customers.

The customer’s requirement is to transmit 50 km. Nếu như Vcan1729 is configured with a 5-watt amplifier, it supports a line-of-sight distance of 50 ĐẾN 80 km. This requires a certain height difference between the transmitter and the receiver, such as from an aerial drone to a ground receiving station or from a mountain top to the surrounding area.

Customers require HD video quality. Our Vcan1729 with HDMI input supports 1080p HD video input encoding and transmission.

The customer requires a delay of 50 mili giây. Của chúng tôi 1729 is an ultra-low delay solution, which can control the delay from transmitter to receiver to as low as 30 mili giây. Its price will also be more expensive than the COFDM-908T with a delay of 150 ĐẾN 200 mili giây. The specific choice depends on the customer’s needs and application scenarios.

Cuối cùng, the customer mentioned that he needed 4 different frequencies to choose from. Của chúng tôi 1729 supports a 30MHz bandwidth frequency range, which means that if the operating frequency is centered at 595Mhz, its operating frequency range is 580Mhz~610Mhz. He can choose several other frequencies for transmission, such as 583Mhz, 589Mhz, 595Mhz, 601Mzh, and 607Mhz. Tất nhiên rồi, 595Mzh has the best transmission performance, because the power amplifier and antenna are customized within the range of +-15Mhz centered at 595Mhz.