Aviation Intelligence

GPS Interference Map

Real-time global visualization of GPS and GNSS disruption zones, derived from aircraft navigation accuracy reports. Updated daily.

Live Interference Map
Powered by GPSJAM & ADS-B Exchange
Low (0-2%)
Medium (2-10%)
High (> 10%)
Current Threat Zones

Persistent GPS Interference Regions

High — Persistent
Eastern Mediterranean & Levant

Continuous interference across Cyprus, Lebanon, Israel, Syria, and eastern Turkey. Large-scale GPS spoofing events are common, with some diverting aircraft navigation displays by hundreds of miles.

High — Persistent
Black Sea & Crimea

Near-constant jamming and spoofing across Crimea, the surrounding waters, and nearby airspace in Romania and Bulgaria. One of the longest-running interference zones since 2022.

High — Persistent
Baltic Region

Interference regularly affects Poland, Lithuania, Latvia, Estonia, Finland, Sweden, and parts of Germany. Most NATO nations attribute the source to Russian electronic warfare systems in Kaliningrad.

High — Intermittent
Persian Gulf & Strait of Hormuz

Recurring interference affecting commercial and private aviation across the Gulf states, the Strait of Hormuz, and surrounding waters. Often intensifies during periods of regional tension.

Medium — Recurring
South Asia

Areas around Lahore, Pakistan and Yangon, Myanmar show frequent interference, likely connected to counter-drone operations. Sporadic but recurring across the India-Pakistan border region.

Medium — Training Activity
Southwestern United States

Not hostile. Military trainer aircraft in Texas and the Southwest perform aggressive maneuvers that temporarily block their own GPS antennas. The aircraft are flying normally; they briefly lose satellite line-of-sight.

How It Works

Understanding GPS Interference Detection

Most aircraft equipped with ADS-B transponders broadcast a Navigation Integrity Category (NIC) value alongside their position. This value indicates how confident the aircraft's navigation system is in its own accuracy. When GPS signals are clean, aircraft report high integrity. When interference is present, uncertainty increases and aircraft broadcast degraded accuracy. The NIC value ranges from 0 (unknown or unreliable) to 11 (highest integrity, within 7.5 meters). A sudden cluster of low-NIC reports in a geographic area that normally shows high integrity is one of the strongest indicators of active GPS interference.

Data Source

The map aggregates NIC values from thousands of ADS-B receivers operated by volunteers worldwide through the ADS-B Exchange network. Each aircraft's position report is assigned to a hexagonal grid cell (H3 geospatial index), and the ratio of "good" to "bad" reports determines the cell's color. This approach is effective because it leverages the sheer volume of global air traffic as a distributed sensor network. No single aircraft's data is relied upon; the map reflects statistical patterns across hundreds or thousands of flights per cell per day.

Color Classification

Green hexagons indicate that more than 98% of aircraft in that zone reported normal navigation accuracy. Yellow hexagons indicate between 2% and 10% of aircraft reported degraded accuracy, suggesting possible interference that may be intermittent or localized. Red hexagons indicate more than 10% of aircraft in the zone experienced degraded navigation, a strong signal of active, sustained interference. Empty cells (no color) indicate insufficient air traffic data to draw a conclusion, typically over deep oceans or remote terrain.

Jamming vs. Spoofing

GPS jamming floods the airwaves with radio-frequency noise on the L1 (1575.42 MHz) and L2 (1227.60 MHz) bands, overpowering the weak satellite signals and causing a complete loss of position. The aircraft's navigation system recognizes the failure and alerts the crew. Spoofing is more insidious: it transmits counterfeit GPS signals on the same frequencies that trick navigation systems into calculating a false position. Modern interference increasingly involves spoofing, which is harder to detect and potentially more dangerous because flight crews may not immediately realize their displayed position is wrong.

Since 2022, GPS spoofing incidents in the Eastern Mediterranean have displaced aircraft position displays by as much as 200 nautical miles. Some spoofing attacks overwrite the aircraft's reported position to show it at an airport hundreds of miles from its actual location. This phenomenon, sometimes called "airport spoofing," has been documented by pilots, researchers, and aviation safety organizations including EUROCONTROL.

What This Means for Private Aviation

GPS interference zones are an operational planning consideration, not a safety crisis. Modern business jets, from light jets to ultra-long-range aircraft, carry redundant navigation systems. Experienced charter operators review interference reports and active NOTAMs during flight planning, file backup approach procedures, and coordinate with ATC when routing through affected areas. If you're operating into the Eastern Mediterranean, Black Sea, or Persian Gulf regions, factoring GPS reliability into your mission planning is standard practice.

For charter flights transiting known interference zones, operators typically brief crews on expected GPS anomalies, ensure the aircraft's inertial reference system (IRS) is aligned and operational, verify that ground-based navigation aids (VOR/DME) at the destination airport are functional, and file conventional instrument approaches that do not depend on GPS. The live aircraft tracker can also be used to monitor real-time traffic patterns in these regions.

Backup Navigation Systems

No modern business jet relies exclusively on GPS. Standard redundancies include:

For specific aircraft capabilities, browse our aircraft directory or explore models by jet category.

Plan Your Mission

Operating into a GPS-affected region requires operators who understand the threat environment. We work with operators experienced in interference zones across the Mediterranean, Middle East, and beyond.

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Frequently Asked Questions

GPS Interference & Aviation

The map displays hexagonal grid cells colored by the percentage of aircraft reporting degraded navigation accuracy in each zone over a 24-hour period. Green means normal operations (less than 2% affected), yellow indicates moderate interference (2-10%), and red signals high interference (more than 10% of aircraft affected).

Aircraft equipped with ADS-B transponders broadcast their GPS accuracy status as part of the Navigation Integrity Category (NIC) value. Thousands of ground-based receivers collect these signals. When aircraft report low NIC values, it indicates potential GPS interference in that area. The visualization is provided by GPSJAM.org using ADS-B Exchange data.

Yes. GPS interference can affect any aircraft relying on satellite navigation, including private jets. However, modern business jets carry redundant navigation systems including inertial navigation (INS) and ground-based radio navigation. Experienced operators plan routes to avoid known interference zones or file alternate approach procedures.

The most common cause is military GPS jamming near conflict zones, including the Eastern Mediterranean, Black Sea region, Baltic states, and Persian Gulf. Other causes include GPS spoofing (broadcasting false signals), military training exercises, and electronic warfare testing.

As of 2026, the most persistent interference zones include the Eastern Mediterranean and Levant, the Black Sea and Crimea region, the Baltic states (Poland through Finland), the Persian Gulf and Strait of Hormuz, and parts of South Asia near Pakistan and Myanmar.

GPS jamming overwhelms legitimate satellite signals with noise, causing receivers to lose their position fix entirely. GPS spoofing is more sophisticated: it broadcasts counterfeit GPS signals that trick receivers into calculating a false position. Spoofing is harder to detect and potentially more dangerous because crews may not realize their displayed position is wrong.

Probably not. The map reflects the experience of aircraft flying at altitude, where they have line-of-sight to many more potential interference sources than a GPS receiver on the ground. The map also aggregates a 24-hour period, so interference may have been present for only a portion of the day. Your phone or car GPS likely works fine even under a red hex.

GPS interference alone is unlikely to cause an accident in modern commercial or business aviation. Aircraft carry multiple redundant navigation systems, and pilots are trained in non-GPS approaches. However, GPS degradation does increase crew workload and reduces the precision of certain approach procedures, which is why operators track interference zones as part of standard flight planning.

ADS-B (Automatic Dependent Surveillance-Broadcast) is a surveillance technology where aircraft continuously broadcast their position, altitude, speed, and navigation accuracy. Each broadcast includes a Navigation Integrity Category (NIC) value that indicates how confident the onboard GPS is in its position fix. When many aircraft in a region report low NIC values simultaneously, it strongly suggests GPS interference in that area rather than individual equipment failures.

The map data is aggregated over rolling 24-hour windows and updates continuously as new ADS-B reports are received from the global receiver network. The hexagonal grid reflects the most recent full day of aircraft navigation data.

The Eastern Mediterranean sits at the intersection of multiple active conflict zones. Military GPS jamming and spoofing operations from multiple state actors overlap across Cyprus, Lebanon, Israel, Syria, and eastern Turkey. The region has experienced near-continuous interference since 2018, with spoofing events sometimes displacing aircraft position displays by hundreds of miles. It affects commercial flights, private aviation, and maritime navigation simultaneously.

Yes, with proper planning. GPS interference is an operational consideration, not a no-go condition. Modern business jets carry inertial navigation systems (INS), VOR/DME radio navigation, and in many cases dual or triple-redundant GPS receivers. Experienced operators review active interference NOTAMs, file conventional (non-RNAV) approach procedures at destination airports, and brief crews on expected navigation anomalies before departure.

A NOTAM (Notice to Air Missions) is an official advisory issued by aviation authorities to alert pilots of potential hazards along a flight route or at a specific airport. GPS-related NOTAMs warn of known interference zones, military GPS testing areas, or reported navigation anomalies. Flight planning services routinely check NOTAMs before every departure.

In theory, sophisticated GPS spoofing could present a false position to navigation displays. In practice, multiple safeguards prevent this from causing a dangerous outcome. Pilots cross-reference GPS with inertial navigation, ATC radar contact, ground-based radio aids, and visual references. Any significant disagreement between systems triggers crew alerts. No commercial or business aviation accident has been attributed to GPS spoofing.

Yes. The U.S. military conducts GPS interference testing at designated ranges, primarily White Sands Missile Range in New Mexico, China Lake in California, and Eglin AFB in Florida. These tests are coordinated with the FAA and published via NOTAMs. They are localized, time-limited, and aircraft operating outside the published zones are unaffected.

Modern business jets carry multiple backup systems. Inertial Navigation Systems (INS) use gyroscopes and accelerometers to track position independently of any external signal. VOR and DME radio navigation uses ground-based transmitters. Some aircraft also carry WAAS or SBAS receivers for enhanced GPS accuracy. Pilots can fly conventional approaches using radio aids without any GPS input at all.

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