this. A glance at the Radar Interference Tracker may reveal its location. At the same time, this creates challenges for armed forces. Members of the public and potential or actual adversaries can see where certain radars are located. This is tactically useful information, and avoids the expense of the sophisticated ELINT assets usually required to gather this information. Intelligence derived from the RIT may lack the detail of that gathered by dedicated ELINT aircraft or satellites. Nonetheless, it could still be useful. The RIT shows that open source signals intelligence is now a reality: time alone will tell how the information it yields will be used. 1990s. Since then, the advent of social media in the early 2000s has taken things further. The ongoing war in Ukraine shows that the smartphone can easily capture and share the sights and sounds of 21st century warfare. Amateur and professional intelligence analysts can determine much from a simple photograph. In the case of Ukraine, a photo may show which units of the Russian Army are in a particular place. They may show evidence of war crimes or help debunk lies. The RIT shows that open-source intelligence tools are moving into the electromagnetic domain. A country may deploy a C-band radar to a specific location but decline to reveal C4ISR Forum MT 3/2022 · 71 C-band radar interference is clearly visible in this image to the north of the Syrian city of Aleppo. This picture was taken on 21 July 2021, indicating that a C-band radar was active that day. (Image: Bellingcat)
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