TDD-FDD uplink a downlink frekvenčně asymetrický přenos vcan2002

Vlastnosti

• Podpora asymetrického přenosu uplink a downlink frekvencí
• Podpora detekce šumu a automatický výběr frekvence
• Podporuje šifrování AES256
• Podpora přenosu na velké vzdálenosti s velkou šířkou pásma

Parametr

Kanál může poskytovat kapacitu 4 Mbps, a modul lze nastavit na 2 Mbps

150testovací video km

Nejčastější dotazy

Q: Can the uplink and downlink working frequencies be configured by the user?

A: For standard models, the working frequencies are factory preset and cannot be modified by the user.

• Uplink (f2): 1.4 GHz
• Downlink (f1): 17 GHz

If your application requires user-adjustable frequencies, we recommend using the FDD transceiver module.

• TX (uplink): User configurable from 170 MHz až 6000 MHz
• RX (downlink): User configurable from 170 MHz až 860 MHz
• For RX frequencies over 860 MHz, dodatek down-conversion stage is required.

Please select the appropriate model based on whether fixed or user-configurable frequency operation is needed.

Q: What are the advantages of the FDD + TDD hybrid technology in this video & data transmission system?

A: This system combines the best features of FDD (Frekvenční divize duplex) a TDD (Time Division Duplex) to deliver superior performance for professional drone operations.

• Real-time two-way communication with ultra-low latency (FDD advantage): Separate frequencies are used for downlink (video & data to ground) and uplink (control commands from ground). This enables true simultaneous transmission, so you get smooth live video and instant control response without any waiting or switching delays.
• High spectrum efficiency and flexible bandwidth allocation (TDD advantage): The system dynamically adjusts bandwidth between video and control/data as needed. This allows higher overall data rates and makes the best use of available radio spectrum.
• Excellent anti-interference capability and reliability: With real-time interference detection, automatická volba frekvence, adaptive bitrate, automatická retranslace, and smart power control, the link remains stable even in complex environments with multipath interference or crowded radio frequencies.
• Long range and high-quality transmission: Podporuje až 200 km air-to-ground range and up to 16 Mbps Šířka pásma, allowing you to transmit clear HD video while simultaneously sending telemetry and control data in both directions.

Jednoduše řečeno: Pure FDD offers excellent low-latency two-way performance but can be less spectrum-efficient. Pure TDD is very efficient and flexible but may introduce slight delays. The FDD + TDD hybrid gives you the perfect balance: nízká latence + vysoká účinnost + silný výkon proti rušení, making it ideal for demanding drone applications such as power line inspection, řešení nouzových událostí, letecké zaměření, and long-range surveillance.