This is one of the weirdest things I've ever heard, and inspired a flurry of paranoid gifs, and even an animation (featuring paranoid stills). I think "politone" is meant to be "polytone", because the only definition of "politone" I can find is:
Politone may be available in the countries listed below.
Ingredient matches for Politone
Pioglitazone hydrochloride (a derivative of Pioglitazone) is reported as an ingredient of Politone in the following countries:
← International Drug Name Search
To me it sounds like shoe polish, but never mind.
(These do play, by the way. I just like the look of them stuck together. Try playing them all at once.) Anyway, this group, this ENIGMA2000, is very X-Files, very paranoid, very into the mysterious numbers-sequence broadcasts that were covered so well on William Shatner's Weird or What? (and GOD how I miss that show, it was tons of fun. Remember that little chihuahua, and the way he came riding up on a horse?)
According to Wikipedia: "A numbers station is a shortwave radio station characterized by broadcasts of formatted numbers, which are believed to be addressed to intelligence officers operating in foreign countries. Most identified stations use speech synthesis to vocalize numbers, although digital modes, such as Phase-shift keying and Frequency-shift keying as well as Morse code transmissions are not uncommon. Most stations have set time schedules, or schedule patterns; however, other stations appear to broadcast at random times. Stations may or may not have set frequencies in the HF band."
I had a thought today - something from Apocalypse Now! flashed into my head, and suddenly I realized there has to be more than one helicopter. Maybe that's why it's so loud? There's a resonant frequency between all of them which threatens to make my skull explode.
I just had to express my paranoia in an animation (below) which I call Cold War One. It is, mercifully, silent.