Boeing/LM/Raytheon rep: "We've got this hot little digital scrambler that can fake locations in the new ADS-B/TIS system, and we are just DYING to try it out in the national airspace! It could show no plane where a plane really is, and it could show a 100 planes where there aren't any! Woohoo!"
Digital "scrambler"? For an unencrypted, easily spoofable, low speed data transmission? Haha. ADS-B spoofing is pretty easy, really. Jamming, even easier. It isn't rocket science... Or... Is it?
You even read the NOTAM? Service "may" become unreliable.
Did you think maybe the testing might be looking for security vulnerabilities?
You almost got it. You hit one clue.
But who needs to look for a vulnerability in an already insecure system? Nope. You can do that in a lab.
Or even just read the design docs and see it's insecure.
I want to know what kind of mental gymnastics you had to go through to conclude that when the DOD is intentionally operating a system along the entire eastern seaboard for a month that clearly has the potential to interfere with TCAS.
"Might interfere..."
"Multiple states affected..."
It's likely an airborne intermittent test folks. Read between the lines.
How far is line of sight at those frequencies and what altitude covers a large swath of the announced area?
Might even be a spot beam test from orbit. It's about the right size for that technology's antenna state of the art.
Perhaps an "asset" has both an appropriate band transponder and antenna to try some things out.
Whatever it is, there's hints at an "above ground RF source".
Doesn't really matter to me what they do. Just sayin'... looks airborne or higher to me.
Someone whined here wondering why such topics turn normal folk against normal folk, and that one is easy, too: Because nobody here has a choice in the matter anyway, certainly not to whether or not to pay for it.
Speaking of that, someone else said they were impressed the military built GPS for us all. GPS' tech was well known in civilian circles for a long time.
The need to spend lots and lots of money on launches was the tipping point. Not the tech.
And of course the use of nuclear toys on board added another layer of bureaucratic fun.
But in the end, it was well known how to do it. They just had to decide it was finally time that you paid for it, back then.
They do what they please. It's nothing personal.