[Litovel] Unknown former broadcasting (jammer?) facility

[Obelixx]

On http://www.mrakodrapy.xf.cz/stozary.htm , a facility with 3 220 metres tall masts in a row at Litovel is shown. I suppose, it was an AM broadcasting facility. Nevertheless, I found in none of my broadcasting tables that there
was a broadcasting facility at Litovel, so I suppose this was a facility for
jamming the program of "Radio Free Europe" on 720 kHz. The height of the mast would also well-fit to this purpose as their height with 220 metres would be optimal for transmitting on 720 kHz and the arrangement would cover the whole area of Czech and Slovakia.
The masts were demolished ( when and how?) but the buildings of the station, which can be seen on http://wikimapia.org/#lat=49.7107582...search=Litovel are still standing. Who knows more about this facility?