12 February 2019
Watching the Skies
When we did the Buckholts Texas class in 2014, we detected one of these flying overhead:
RC-12 SIGINT aircraft, likely one from one of the reserve MI units based out of Texas. Not an uncommon occurrence on a weekend, as that's when reservists drill.
How did we notice it, and everything else in the sky that weekend?
By doing ELINT (Electronic Intelligence) with a laptop, $20 RTL-SDR dongle receiver, and some software.
Here is a screenshot from a few minutes ago of most everything currently in the air above NY state. That crowded cluster in the bottom right is New York City. Complements of https://global.adsbexchange.com/.
While being able to collect ELINT via a website is nice, you're better off doing it yourself. Even a basic setup will still let you see out to 100 miles of so, depending on the terrain.
This is something we'll be talking about, and teaching at class this year. The next class is June 1-2, 2019 in Lynchburg, VA - https://www.sparks31.com/2019/02/lynchburg-va-sparks31-class-june-1-2.html.
Enroll via https://squareup.com/store/sparks31/.