Published on expedition.privatepilot.lu — Private Pilot Expedition Georgia 2026
As we prepare for the Expedition Georgia 2026, routing us through Hungary, Romania, Bulgaria, Türkiye, and into the Kakheti region of Georgia, there is one topic that deserves serious attention from every participating pilot: GPS jamming and spoofing.
These are not theoretical threats. Reports of GNSS interference have increased significantly in recent years across parts of Eastern Europe, the Baltic region, the Black Sea area, the Eastern Mediterranean, and the Middle East. Pilots operating in these regions should understand what these phenomena are, how to recognise them, and what to do if they occur.
This article explains what jamming and spoofing are, how to detect them, what equipment can help, and how to manage such events safely should they arise.
What Is GPS Jamming?
GPS jamming is the deliberate — or occasionally accidental — transmission of radio-frequency energy on the frequencies used by GNSS (Global Navigation Satellite System) receivers.
The GNSS signals received by an aircraft are extraordinarily weak by the time they reach the Earth’s surface. As a result, relatively modest interference can disrupt reception.
When a receiver is jammed, it loses access to some or all satellite signals. Typical indications include:
- “GPS Lost” or similar warnings on avionics displays
- A sudden reduction in the number of satellites being tracked
- Increased position uncertainty
- Loss of GPS-derived navigation guidance
- Loss of position display on moving maps
In most cases, modern avionics will clearly indicate that a problem exists.
Jamming events have been documented in several regions of Europe and around the Black Sea, and both EASA and EUROCONTROL have issued safety information on the subject.
What Is GPS Spoofing?
Spoofing is more subtle — and potentially more dangerous.
Rather than blocking GNSS signals, a spoofing system transmits counterfeit signals designed to be accepted by a receiver as genuine. The receiver continues to display a position, track and groundspeed, but the information may be incorrect.
In a spoofing event, an aircraft may appear to be somewhere it is not, sometimes by tens or even hundreds of kilometres.
The challenge is that there may be no obvious failure indication. The moving map continues to function. Navigation systems continue to provide guidance. Autopilots may continue to follow the displayed route.
Without cross-checking against independent information sources, pilots may not immediately realise that their situational awareness has been compromised.
Documented spoofing incidents have occurred in the Eastern Mediterranean, the Black Sea region, Türkiye, parts of the Middle East, and other areas where military activity or conflict has resulted in widespread GNSS interference.
Why Does It Happen?
The primary reason is geopolitics and conflict.
Military organisations use jamming systems to deny adversaries access to accurate satellite navigation. Spoofing systems may be used to misdirect drones, guided weapons, or surveillance platforms.
These systems generally do not distinguish between military and civilian users. Airliners, business aircraft, general aviation aircraft and microlights can all be affected.
As our route passes through regions where GNSS interference has been reported, we should treat it as a realistic operational risk and prepare accordingly.
Regional Context
The route of the Private Pilot Expedition Georgia 2026 crosses a region where geopolitical tensions remain a reality.
Pilots should also take into account the broader geopolitical and operational environment along the route, particularly across Eastern Europe, the Black Sea region, Bulgaria, Turkey and the Caucasus. GPS interference is not limited to one country or one conflict area, and recent interference maps show activity in several parts of the wider region.
Georgia itself remains a super safe and welcoming destination for general aviation, but pilots should be aware that Russia continues its unlawful occupation of Abkhazia and the Tskhinvali Region / South Ossetia. These territories are an integral part of Georgia under international law. This broader geopolitical context is relevant when reviewing navigation, NOTAM and security information, without changing the planned nature of the expedition as a coordinated general aviation flight to Georgia.
In recent years, aviation authorities, researchers and monitoring organisations have documented significant GNSS interference activity across the Black Sea region, the Eastern Mediterranean and neighbouring areas. Whilst the source of individual jamming or spoofing events is not always publicly confirmed, many incidents have occurred in proximity to active military operations or regions of heightened geopolitical tension.
This does not mean that interference will necessarily be encountered during the expedition. However, it does mean that pilots should regard GNSS disruption as a realistic operational risk and be prepared to navigate safely should it occur.
For expedition participants, the message is simple: remain vigilant, cross-check navigation sources, and always be prepared to revert to basic navigation techniques if required
How to Detect It
Detecting Jamming
Jamming is usually straightforward to identify. Watch for:
- Loss of GPS position
- Sudden reduction in satellite count
- Integrity or RAIM alerts (where supported by the equipment)
- Unexpected discrepancies between GPS groundspeed and expected aircraft performance
Detecting Spoofing
Spoofing requires discipline and continuous cross-checking.
Good practices include:
- Comparing GPS information with any available independent navigation source
- Monitoring headings, timing and visual progress along the planned route
- Comparing GPS groundspeed with indicated airspeed and forecast winds
- Watching for sudden or implausible position jumps
- Confirming that displayed positions correspond with visible landmarks and terrain features
Modern GNSS receivers that support Galileo OSNMA (Open Service Navigation Message Authentication) can provide additional protection against certain spoofing techniques by authenticating Galileo navigation messages. However, OSNMA should not be regarded as a complete defence against all forms of GNSS interference.
What Equipment Helps?
A key principle is that diversity improves resilience.
Receivers capable of tracking multiple satellite constellations — such as GPS, Galileo, GLONASS and BeiDou — generally provide greater resilience than single-constellation systems.
Multi-frequency receivers may also be better able to identify anomalies affecting individual signals or frequencies.
Professional-grade GNSS systems incorporate sophisticated anti-jamming and anti-spoofing technologies. Whilst these solutions are generally beyond the budget of most general aviation pilots, the underlying principle remains valid:
The more independent sources of navigation information available to you, the harder it becomes for a single interference event to compromise your situational awareness.
For expedition pilots, the practical takeaways are:
- Understand the capabilities and limitations of your avionics
- Know whether your equipment uses single or multiple GNSS constellations
- Understand that a tablet running SkyDemon, ForeFlight or similar software may use a different GNSS source from the aircraft panel
- Carry suitable paper charts as a contingency
- Maintain basic dead-reckoning skills
Recommended Charts for Türkiye
We strongly recommend that expedition participants carry current VFR charts covering the Turkish portions of the route.
One option is the Rogers Data VFR ICAO Charts for Türkiye, available in separate East and West editions.
The Türkiye East chart is particularly useful for the section approaching the Georgian border and provides a valuable independent reference should electronic navigation become unreliable.
Paper charts should be regarded as a contingency tool rather than a primary means of navigation. Pilots remain responsible for ensuring that any charts carried are current, suitable for the intended route, and used in accordance with applicable regulations.
What to Do If It Happens
1. Do Not Panic
Loss or degradation of GNSS navigation does not mean loss of navigation altogether.
You still have:
- An airspeed indicator
- An altimeter
- A compass or heading reference
- A clock
- Visual navigation references
- ATC assistance where available
2. Inform ATC If Necessary
If operating in controlled airspace or receiving a radar service, advise ATC that you are experiencing GNSS anomalies.
Controllers in affected regions are increasingly familiar with such situations and may be able to assist.
3. Revert to Basic Navigation
Return to fundamental navigation techniques.
Record:
- Your last known reliable position
- Heading
- Airspeed
- Time
Use dead reckoning and visual navigation to maintain situational awareness.
4. Use Your Paper Charts
Identify major terrain features, coastlines, rivers, roads and railways that can assist in confirming your position.
A paper chart requires no battery power, cannot be jammed, and cannot display a spoofed position.
5. Do Not Blindly Follow a Suspicious GPS Position
If the displayed position does not match what you see outside the cockpit, investigate before accepting the information as correct.
Always seek confirmation from independent sources.
6. Cross-Check, Cross-Check, Cross-Check
Pilots flying in pairs or groups may have an additional source of situational awareness by comparing positions, tracks and groundspeeds over the radio.
Whilst this is not a substitute for proper navigation, it can help identify anomalies affecting one aircraft but not another.
A Final Word
The Private Pilot Expedition Georgia 2026 has been planned with operational resilience in mind, and GNSS awareness forms part of that preparation.
Briefings will cover areas where GNSS interference has been reported or documented along our route. Every aircraft should carry appropriate charts for the Turkish and Georgian legs, and every pilot should have considered their personal contingency plan before departure.
Understanding that GNSS signals can be degraded, lost or manipulated — and knowing how to recognise and manage such events — is an important part of being a well-prepared expedition pilot.
Technology is a tremendous aid to navigation. It should never be the only one.
Fly prepared. Fly informed. See you in Georgia.
