(major assumption) That's more than likely the position of the USS Gerald R. Ford (CVN-78).

Its support planes are in the area [1], and it was sighted on Sep 28 near Italy [2], and if I understand it correctly, has been tasked to this area.

1 - https://twitter.com/wipljw/status/1712780646530118125

2 - https://www.marinevesseltraffic.com/vessels/USS-Gerald-R.-Fo...

It might not be obvious, but the date on the gpsjam page is an input field: You can change it and see the map for any day. If you do that, you'll quickly see that Cyprus is constantly, always being jammed.

Thank you for giving that insight against my assumption!

I discovered GPSJam a few months ago, and have enjoyed some of your content on Twitter, and really enjoyed your work on the longer form article from a few years ago (the FBI one; "Secrets of the Sky") [0].

Best wishes for your endeavors!

[0] - for anyone curious: https://twitter.com/lemonodor/status/1250581745935593472 or https://docs.google.com/presentation/d/1sowJrQQfgxnLCErb-CvU...

The invasion and subsequent occupation must've been pretty annoying as well !

Snarky jokes aside, in my experience GPS works okay in Cyprus, so the jamming must be localised somehow.

interference does not necessarily impact people on the ground – these readings are from thousands of feet in the air and are hence exposed to a lot more signals.

You probably need to be in the line of sight of the interfering device, so it has much less coverage on the ground level.