Alaska Gets 'Artificial Aurora' As HAARP Antenna Array Listens Again (hackaday.com)

Freshly Exhumed quotes Hackaday: The famous HAARP antenna array is to be brought back into service for experiments by the University of Alaska. Built in the 1990s for the US Air Force's High Frequency Active Auroral Research Program, the array is a 40-acre site containing a phased array of 180 high-frequency antennas and their associated high-power transmitters. Its purpose is to conduct research on charged particles in the upper atmosphere, but that hasn't stopped an array of bizarre conspiracy theories.
A university space physics researcher will actually create an artificial aurora starting Sunday (and continuing through Wednesday) to study how yjr atmosphere affects satellite-to-ground communications, and "observers throughout Alaska will have an opportunity to photograph the phenomenon," according to the University. "Under the right conditions, people can also listen to HAARP radio transmissions from virtually anywhere in the world using an inexpensive shortwave radio."

Comments

HF radio...

[msauve]

It you want to try to listen to the radio broadcast mentioned, here's the info:

HAARP will transmit a sequence of tones and music using amplitude modulation (AM) on two different radio frequencies (2.7 MHz and 3.3 MHz) in a sort of reproduction of this so-called Luxembourg Effect. If conditions are sufficient and you tune-in to one frequency or the other, you will hear tones and music from both frequencies. The tones and music have been specifically composed to take advantage of the Luxembourg effect.

The Luxembourg broadcast will begin as early as 6 p.m. on 19 and 20 February Alaska Standard Time (AKST) and conclude by 6:40 p.m. In Coordinate Universal Time (UTC), the broadcasts will begin as early as 03:00 on 20 and 21 February and conclude by 03:40. Tune in to 2.7 MHz or 3.3 MHz (2700 KHz or 3300 KHz), or both! The program is approximately 10 minutes in duration and will repeat until 6:40 p.m. AKST or 03:40 UTC.