How can I tell if my ship is being jammed versus just having a bad GPS signal?

Jamming usually causes a complete, simultaneous loss of all GNSS constellations (GPS, GLONASS, Galileo) and you'll see a rapid drop in the signal-to-noise ratio in the raw device diagnostics. A bad signal might just weaken one constellation. Also, look for a fleet-wide pattern in a specific geographic area, which is a strong indicator of jamming.

How can I tell if my ship is being jammed versus just having a bad GPS signal?
Jamming usually causes a complete, simultaneous loss of all GNSS constellations (GPS, GLONASS, Galileo) and you'll see a rapid drop in the signal-to-noise ratio in the raw device diagnostics. A bad signal might just weaken one constellation. Also, look for a fleet-wide pattern in a specific geographic area, which is a strong indicator of jamming.

How can I tell if my ship is being jammed versus just having a bad GPS signal?

How can I tell if my ship is being jammed versus just having a bad GPS signal?
Jamming usually causes a complete, simultaneous loss of all GNSS constellations (GPS, GLONASS, Galileo) and you'll see a rapid drop in the signal-to-noise ratio in the raw device diagnostics. A bad signal might just weaken one constellation. Also, look for a fleet-wide pattern in a specific geographic area, which is a strong indicator of jamming.

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