LayEarthlayers Open the map

air · measured from aircraft · Pro layer

GPS interference

Where GPS is being jammed or spoofed, measured by the aircraft flying through the area.

Open in the app

What it shows

Where GPS is being jammed or spoofed, measured by the aircraft flying through the area. Every ADS-B position carries a navigation integrity value (NIC). The map shows grid cells where many aircraft report a degraded fix at the same time, and lists the aircraft behind each measurement.

Where the data comes from

ADS-B NIC values from the adsb.lol community network (regional views only); polled every 15 seconds and pooled over the last 10 minutes.

Reading the map

Cells run from green (clean fixes) through amber to red (most aircraft degraded, which suggests jamming). Wide views show a "zoom in" message instead of false green.

Units Share of aircraft in a cell reporting a degraded fix (NIC below 7).

Other layers in air