Image: Zach Clements and ADS-B Exchange

What’s New: Circle spoofing, previously only observed in receivers aboard ship and on land, is now being observed in aviation. Here are depictions of aircraft receivers being spoofed off course, and then into reporting they are flying in a circle.

The first set  is from the 25th of December and the second is from today, the 7th of January. Thanks to Zach Clements at UT’s Radionavigation Lab for all!

Why It’s Important: More evidence that interference with aviation receivers is growing in frequency and in the types of interference being experience.

What Else to Know:  We have no idea what this means other than things are continuing to get worse!