Tropo-scatter is a method of communicating using microwave radio signals with effective communication distances reaching up to 300km. When the Soviets 'installed' these system in Hungary, they funded the construction of BARS 504 (between 1983 & 1984). The remaining sites had to be funded and constructed by the Hungarians. To that end, 501, 502 & 503 are of a different design to BARS 504 which also had an extensive (once) pressurised 2 level 'bunker system'.
BARS 504 is one of 4 such systems in Hungary and 1 of 3 we managed to visit and remained operational up until March 1991. Not really that much to them, the bunker was pretty grim and we were dressed for sunshine. So not exactly heavy on the pictures this time.
