These photos are made at the manual trackers indicator. (see the double horizontal line) At the Dvina, FCO has no possibility to magnify his screen to 5km as with the Volhov, so there you could see only compressed image.
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
