Tachyonic AntiTelephone Wiki Definition:
https://en.wikipedia.org/wiki/Tachyonic_antitelephone
Faster than light signal created via Polarization Synchrotron:
http://theness.com/roguesgallery/index.php/science-and-the-media/radio-waves-faster-than-light/
there’s the real explanation, the person who wrote the article from above basically made a misinterpretation of the original paper : https://arxiv.org/abs/physics/0405062 or worse just copied an old article.
people do your homework
greetings,