1420Mhz -1530Mhz頻率範圍無人機視訊資料鏈模組

1420Mhz -1530Mhz頻率範圍無人機視訊資料鏈有110Mhz頻率範圍, so it supports frequeny hopping (FHSS) 在 11 ponits if set bandwidth 10Mb.

This is a special customized version of the Vcan1681 drone wireless video and data module.

	版本 1	版本 2
頻率範圍	806-826Mhz 1428~1468Mhz 2401.5~2481.5Mhz	1420~1530Mhz
Frequency Hopping Range	Three frequency bands between 800Mhz, 1.4Ghz and 2.4Ghz.*	1420-1530Mhz (now PA and antenna support)

* Frequency hopping at 800Mhz, 1.4Ghz and 2.4Ghz needs the power amplifier and antenna to support.

The 1420-1530 MHz頻率範圍 for drone video data links is part of the L-band, known for its balance between range and data throughput, making it suitable for long-distance communication. Here’s a detailed breakdown:

主要特點:

1. Frequency Range Attributes:
   • Longer Range: Lower frequencies (compared to 2.4 GHz/5.8 GHz) enable communication over greater distances, 非常適合Beyond Visual Line of Sight (超視距) 營運.
   • Better Obstacle Penetration: Effective in urban or vegetated environments where signals must pass through buildings or foliage.
2. 應用:
   • Commercial Drones: Used in infrastructure inspection, 農業, and delivery services requiring reliable long-range links.
   • Military/Government: 安全的, robust communication for surveillance or reconnaissance.
   • 公安: Emergency response drones in disaster zones where traditional networks fail.
3. Technical Trade-offs:
   • Lower Data Rates: Compared to higher bands, but modern compression (例如, H.265) allows HD video transmission.
   • 幹擾緩解: Techniques like frequency hopping or directional antennas may be employed to enhance reliability.
4. 挑戰:
   • 監理合規性: Operators must ensure transmissions avoid protected frequencies (例如, 1400-1427 兆赫). 在實踐中, systems often use 1427-1530 兆赫 to prevent overlap.
   • Spectrum Crowding: Increased use of L-band for aviation/satellite may require coordination.
5. 結論:
   • The 1420-1530 兆赫 band is a strategic choice for drones needing 遠距離, reliable video links, especially in regulated or challenging environments. Compliance with radio astronomy protections (avoiding ≤1427 MHz) and proper licensing are essential for legal operation. This range is favored in sectors prioritizing reach and penetration over ultra-high data rates.