These are international projects.
(your link)
HAARP to bounce signal off asteroid in NASA experiment
https://www.gi.alaska.edu/news/haarp-bounce-signal-asteroid-nasa-experiment
https://www.gdscc.nasa.gov/
I’ve been to Goldstone near Barstow CA. The large dish was huge and the actual building structure rotates on hydraulic plates. Radio operators refer to rotating a beam antenna as “turning the house” That is appropriate at Goldstone. I even saw the Gold (plated) Bricks (for cooling of the components)
http://www.vla.nrao.edu/
Later I got the tour for the VLA (Very Large Array) site West of Socorro, NM on the plains of Saint Augustine. It is a series of huge fully rotatable dish antennas. There were only 3 operational when I met the engineer in charge, Bill Dumke. The dish antennas are on rail cars that are movable along the Y shaped rail system. It had a unique wave guide. It was a ferrite tube with copper wire spun inside. The Ferrite tube was 1/4 wavelength thick on the IF of the system. At the base of each dish was a cryogenic amplifier at the time. Later when quiet GASFETs were developed the super cooling was not necessary. The array now spans 22 miles.
There is also a VBLA system. Much larger effective diameter array.
Very Long Baseline Array
https://science.nrao.edu/facilities/vlba
https://greenbankobservatory.org/visit/
A neighbor of mine, when I lived in OK made the first attempt at using the Greenbank Dish antenna to do EME comms at 10GHZ. They had mechanical problems with the mount and lost their window of access for the test. A few weeks later a European group made the first 10GHZ Amateur radio contact.
Most if not all of these sites are under control of the National Science Foundation.
The equipment are not special purpose tools. They are adaptable in most cases to other specific needs.
Here is a well known one-of-a-kind, the Arecibo Observatory radio telescope in Puerto Rico that was badly damaged when the feed horn system for the dish collapsed.
The Arecibo Observatory radio telescope in Puerto Rico has collapsed (Dec 01, 2020)
https://www.space.com/arecibo-radio-telescope-collapses
“Later I got the tour for the VLA (Very Large Array) site West of Socorro, NM on the plains of Saint Augustine.”
I was there a few months back.
I’ve been to Goldstone near Barstow CA. The large dish was huge and the actual building structure rotates on hydraulic plates. Radio operators refer to rotating a beam antenna as “turning the house” That is appropriate at Goldstone. I even saw the Gold (plated) Bricks (for cooling of the components)
DSS 14: "Mars" 70m Cassegrain reflector on Alt/Az mount. ~3850 m2 aperture.
https://en.wikipedia.org/wiki/Goldstone_Deep_Space_Communications_Complex#Antennas
Here's the image of the on-site informational sign.
"DSN – Follow the Sun"
The home page has a simple map diagram of the complex, and the farthest point out is the location of MARS. This is interesting to me because for some odd reason the Japanese flag is the simple orb of a *red* sun (Nihon/Japan: "origin of the sun"). Looks like Mars. Some kind of bait and switch going on in the lower worlds, haha.
Ah, but the name of the place is Goldstone, and on Google maps, the address is placed at the guard gate:
93 Goldstone Rd, Fort Irwin, CA 92310
Somebody must have had some fun with all of it, because 93 mil miles is of course the distance to the sun. 93 = "The Megillah", if anyone could believe it.
Some while back I had been looking at the map of Fort Irwin and the training center address jumped right out because I already had a long list:
983 Inner Loop Rd, Fort Irwin, CA 92310
It's amazing how much there is to see around the world just by browsing a page such as
https://en.wikipedia.org/wiki/List_of_radio_telescopes
What's in a name.. Bar-stow, because who would ever be looking [up from] there.