I am pretty sure that amount of informations provided by your SAM Simulator isn't surpassed anywhere in the internet.

Just scratching the surface...
... an above mentioned book from "Osprey" says confidently in 2011, that "Fang Song had two functions - target acquisition of up to six targets"
banghead

Heck, WarPact had to wait till 1988 to receive a system capable of doing that....
duh

Hpasp
Free SAM Simulator, "Realistic to the Switch"
(U-2 over Sverdlovsk, B-52's over Hanoi, F-4 Phantoms over the Sinai, F-16's and the F-117A Stealth bomber over the Balkans.)
http://sites.google.com/site/samsimulator1972/home

Book from the author - Soviet Nuclear Weapons in Hungary 1961-1991
https://sites.google.com/view/nuclear-weapons-in-hungary/
thumbsup