L S band 100Mbps 200km 2x20WPA drone video data transceiver

Here is a client’s demand for L S band 100Mbps 200km 2x20WPA drone video data transceiver.

Requirment:

L and S band
2x20w PA
2 input LAN (RJ45)
1 RS232 input (bidirezionale)
Airborne design
Datarate: 100 Mbit/s
Max Range: 200km

drone has 8pc IP-Cameras Video + data Type with UDP protocol.

This information is all entered into one network switch.

If we want to get this information inside the Ground control station, che è 150 km away, what would you suggest?

Drone Transmitter Side:

1. Telecamera IP (2M pixel)
2. Telecamera IP (2M pixel)
3. Telecamera IP (2M pixel)
4. Telecamera IP (2M pixel)
5. Telecamera IP (2M pixel)
6. Telecamera IP (2M pixel)
7. Telecamera IP (2M pixel)
8. Telecamera IP (2M pixel)
9. UDP Data (10KB)
10. UDP Data = 4Mbps
11. Network switch
12. Allineare: 100~150 km

GCS Side: Stazione di controllo a terra

• 2 Hdmi Monitor for Video
• 1 Computer For Data
• We want to connect to Aviation ip cameras.
• And also PING all aviation Ip address

Attualmente, the one that can basically meet customer needs is Vcan1806-100Mbps-2x10WPA.

FAQ

Q1: Whether a directional antenna is required for optimal signal reception. or omni antenna?

A1: It is better to use one fiberglass omnidirectional antenna and one antenna direzionale a pannello piatto.

1. Frequency Band Requirements

• Banda L & S-band Support
  • Dual-band operation is required, likely for satellite communications, radar, or airborne datalinks.
  • Clarify specific frequency ranges (per esempio., Banda L: 1–2GHz, S-band: 2–4GHz) and ensure coexistence mechanisms (per esempio., filters/duplexers) to prevent inter-band interference.

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2. Amplificatore di potenza (PA) Specifications

• 2×20W RF Output
  • Dual-channel architecture with independent 20W amplification per channel, enabling redundancy or simultaneous dual-band transmission.
  • Critical considerations: Thermal management (for airborne environments), PA efficiency optimization (per esempio., GaN technology), and EMI/EMC compliance.

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3. Interface Configuration

• Network Interfaces
  • 2× RJ45 ports: Support 100 Mbps Ethernet throughput; verify protocol compatibility (per esempio., TCP/IP, VLAN tagging if needed).
• Comunicazione seriale
  • 1× bidirectional RS232 port: Ensure full-duplex operation for control commands or low-rate data transmission.

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4. Performance Metrics

• Velocità dati: 100 Mbit/s
  • Requires high-efficiency modulation (per esempio., 256-QAM, OFDM) and sufficient RF channel bandwidth.
• Max Range: 200 km
  • Perform detailed link budget analysis: Account for Tx power (20Nella PA), guadagno dell'antenna, receiver sensitivity, free-space path loss, and atmospheric/terrain attenuation (critical for L/S-band over 200 km).

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5. Airborne Design Constraints

• Environmental Compliance
  • Meet DO-160 standards for vibration, shock, temperatura (-40°C fino a +70°C), and EMI/EMC.
• Physical Integration
  • Compatto, lightweight design compliant with aviation form factors (per esempio., ARINC 600). Prioritize heat dissipation and power efficiency.

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6. Key Challenges & Open Questions

• Application Context
  • Clarify use case (militare, commercial UAV, or manned aircraft). Are encryption or anti-jamming capabilities required?
• Certificazione
  • Confirm regulatory needs: FAA/EASA certifications (per esempio., DO-254/178C) or military standards (per esempio., MIL-STD-810).
• Integrazione
  • Define interface compatibility (per esempio., ARINC 429, MIL-STD-1553) with existing avionics systems.
• Antenna Design
  • Specify antenna type (directional vs. omnidirezionale) and mounting constraints.

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Technical Recommendations

1. RF Link Optimization
   • Use adaptive modulation (AMC) and forward error correction (FEC) to balance data rate and range.
2. Thermal Management
   • Implement GaN-based PAs for high efficiency and integrate active cooling (per esempio., liquid cooling or forced airflow).
3. Ridondanza & Affidabilità
   • Design dual-channel redundancy for mission-critical airborne operations.
4. Prototyping & Test
   • Conduct field trials to validate 200 km range under real-world conditions (per esempio., altitudine, interferenza).

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Riepilogo

The customer requires a dual-band, high-power airborne communication system optimized for long-range (200 km), ad alta velocità (100 Mbit/s) trasmissione dei dati. Success hinges on balancing thermal performance, peso, and RF efficiency while meeting stringent aviation standards. A phased approach—starting with detailed link budget modeling and prototype testing—is recommended to mitigate risks.