It is recommended to prepare the crew for navigation using alternative methods to GPS / GLONASS. The problem could be mitigated by using anti-jamming GPS antenna that only point to the sky in order to make it more difficult to receive jamming by the land.
Reporting. The NSC, in cooperation with the U.S. MARAD, continues to encourage all ships to report incidents of GPS jamming or other interference (i.e.use of false AIS, rogue GSM-towers).
A format to report interference, reactions taken, and the overall impact (if any) is available on the NSC's website www.shipping.nato.int/nsc/page10303037.aspx.
The NSC will continue to share the reports and findings with U.S. MARAD and update our website with the latest info. Any other incident reporting can be done on the NATO Shipping Website at www.shipping.nato.int.
For faster reporting, Email or phone our 24/7 Duty Officer at firstname.lastname@example.org or +44 (0) 1923 956574.