Security firm Midnight Blue has released an analysis detailing the persistent use of analog radio frequency (RF) links in modern unmanned aerial systems. The report highlights that despite the shift toward digital communications, analog feeds remain a staple for tactical drones, including those used in the ongoing Russia-Ukraine war and recent conflicts in the Middle East.
The resilience of analog signals
Analog links offer significant advantages in high-stakes military environments. Unlike complex digital systems, analog transmissions provide near-zero latency, which is critical for operators flying First-Person View (FPV) kamikaze drones at high speeds. These systems are often derived from hobbyist racing technology, making them inexpensive, easily replaceable, and simple to modify for battlefield requirements.
Midnight Blue notes that these systems have become instrumental in recent tactical operations. The firm points to the widespread use of FPV drones in the Russia-Ukraine conflict, which has forced a stalemate in many frontline sectors. These drones, often treated as disposable, allow for precision strikes against high-value military equipment while keeping operators at a distance.
Historical data corroborates the vulnerability and ubiquity of these links. The report cites past instances of drone video feed interception in Syria, Iraq, Lebanon, and Israel. Because analog signals transmit video without encryption in many standard configurations, opposing forces have historically been able to tap into these feeds to gain real-time intelligence on enemy movements.
Despite the clear security risks, military forces continue to prioritize the reliability of analog links over the higher security of digital alternatives. The ability to maintain a consistent video link in signal-saturated environments often outweighs the potential for interception. The report serves as a precursor to a deeper examination of how these video links interact with modern counter-drone measures and the inherent weaknesses of common video scrambling techniques.
