Date: August 7, 2024

This morning, I’m embarking on an extraordinary journey from the north of Sweden to Estonia in my state-of-the-art Blackwing aircraft, call sign F-JKYS. However, this flight will be unlike any other – I will be contending with significant GPS jamming across the airspace of Finland and Estonia.

The Planned Route and the Challenge

My route takes me from the serene landscapes of Gargnäs in northern Sweden, across the scenic terrains of Finland, and finally to Estonia. The Blackwing, equipped with advanced GPS navigation systems, seems ready for the task. However, recent reports of GPS interference in the region add an element of uncertainty to the journey.

Understanding GPS Jamming

GPS jamming involves the use of devices that block or interfere with the signals sent from GPS satellites. This interference can disrupt navigation systems, posing a serious risk to aviation. Here’s a deeper dive into the technical aspects:

1. GPS Signals: GPS, short for Global Positioning System, relies on a network of satellites that send signals to receivers on Earth. These signals provide positioning, navigation, and timing information crucial for various applications, including aviation.

2. Interference Mechanisms:
• Jamming: This involves broadcasting signals on the same frequency as the GPS satellites but with higher power. The jamming signals overwhelm the legitimate GPS signals, causing receivers to lose lock on the satellites.
• Spoofing: This is more sophisticated and involves sending fake GPS signals to mislead receivers. A spoofer mimics the GPS satellites, sending incorrect information about time or position.

3. Sources of Interference: While commercial jammers are available, military-grade jammers are more potent and can cover larger areas. In the case of the Baltic region, Estonia has accused neighboring Russia of deploying such jammers, affecting airspace over Finland and Estonia.

4. Impact on Aviation: GPS is a critical component of modern aviation, replacing many traditional navigation aids like VOR (VHF Omnidirectional Range) and NDB (Non-Directional Beacon). When GPS is jammed:
• Navigation Disruption: Pilots may lose their precise position data, crucial for navigation, especially in poor visibility conditions.
• Timing Errors: GPS also provides accurate timing. Disruptions can affect the synchronization of systems onboard aircraft and within air traffic control.

The Impact on My Flight

Flying a highly modern plane like the Blackwing, which relies heavily on GPS, makes this interference a significant concern. Traditional radio beacons (VOR, NDB) are not an option, leaving me to rely on a classic paper map and vigilant navigation.

Despite these challenges, I am determined to complete my journey. The experience underscores the importance of being prepared for any situation and reinforces my skills in traditional navigation techniques.

Preparing for the Flight

As I prepare for this flight, I am meticulously planning my route and backup plans. My toolkit includes a detailed paper map, sharp navigation skills, and constant vigilance. The unpredictable nature of GPS jamming demands a high level of preparedness and adaptability.

Looking Ahead

As I set off this morning, it’s clear that GPS jamming is a growing concern for aviation. The technology that we rely on so heavily can also be a point of vulnerability. This journey will be a test of my skills and resilience as a pilot.