MSGID: 2:292/854 1b2b4552   
   TZUTC: 0200                     
   For months, the GPS navigation system of aircraft above and around the Baltic   
   Sea has been disrupted by equipment in the Russian exclave of Kaliningrad.   
   That never led to major problems, until now: airline Finnair will no longer   
   fly to the second largest city in Estonia for a month because a safe landing   
   is no longer possible.   
       
   "To fly to Tartu airport (Estonia's second largest city, ed.), a GPS signal is   
   used," Finnair announced. "The GPS interference, which is quite common in the   
   area, affects the usability of this method, hindering the approach and   
   landing. Last week, two Finnair flights had to return to Helsinki after GPS   
   interference prevented the approach to Tartu." Until the end of May, Finnair   
   will therefore no longer fly to Tartu. In the meantime, another approach   
   method is being sought that does not require a GPS signal.   
       
   The disruption of the GPS signal has been a problem in the border region   
   between Europe and Russia for some time, but the problems have increased   
   significantly since December. The disruption is caused by a "jammer". This is   
   electronic equipment that interferes with the radio signals of navigation   
   systems that work with satellites, such as GPS. According to various   
   observations, the source of this disruption is located in Russian territory.   
   Electronic warfare is part of Russia's flexing of its muscles against Europe.   
      
   --- DB4 - 20230201   
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