stradegy to counter gps jamming soft ware

Straight of Homuz 

iranians are using gps spoofing and jamming software,

these are creating Digital fog in navigation systems.

ships passing straight are down 90%

straight tanker activity can be monitored here.

https://hormuzstraitmonitor.com/

counter stradegy .

Mariners in the Strait of Hormuz are increasingly reverting to "old school" methods to maintain safety:Celestial Navigation: Using a sextant to measure the angle of stars, the sun, or the moon. Combined with a precise clock and nautical almanacs, this allows a deck officer to calculate latitude and longitude entirely independent of any satellite network.Dead Reckoning: This involves calculating a current position based on a previously known location by applying speed, time, and heading. While it can degrade over time due to drift, it provides a vital backup when digital systems fail.Pilotage and Visual Bearings: Navigators use radar to measure distances to known landmarks or take visual bearings on conspicuous coastal objects. Comparing these to paper charts provides a physical cross-check that cannot be "spoofed".Echo Sounding: Ships use echo sounders to measure water depth and compare it to charted depths. If a GPS indicates deep water but the sounder shows a shallow seabed, the crew can immediately identify a spoofing attack.Technological "Manual" BackupsModern vessels also utilize high-tech tools that operate without GPS:Inertial Navigation Systems (INS): These use accelerometers and gyroscopes to track movement from a starting point. Unlike GPS, INS is an internal system and cannot be jammed by external radio signals.Multi-Constellation Receivers: Many new ships utilize Russia's GLONASS, Europe's Galileo, and China's BeiDou alongside GPS. Spoofing all these systems simultaneously is significantly more difficult than targeting a single one.The main challenge is that younger mariners are often less familiar with these manual techniques, which has prompted calls for increased training in traditional navigation.Would you like to see a list of upcoming maritime security briefings or training workshops focused on electronic warfare

On highly automated, modern ships, GPS interference can be hard to detect. And while it’s perfectly possible to navigate using alternative tools, including radar, inertial systems such as accelerometers and gyroscopes, visual watchkeeping, and celestial navigation, younger mariners are often less familiar with these techniques and tools.

source msn 

https://www.cnn.com/2026/03/06/science/gps-jamming-ships-planes-iran-war?cid=external-feeds_iluminar_msn

foot note, sailers have been navigating straight since mesopatia and the. sumarian culture , with paper charts and sextant navigation tools, seems some navigation systems training is needed for tug boat crews to successfully move tankers through straight...