I can remember my last visit to Schonefeld, back in the late 80s. The terminal at that time, had a brilliant viewing terrace with seating and a cafe, overlooking tha main apron. It gave great fairly close up views of the spread of the Interflug Ilyushins and Tupolevs, and more of the same in the liveries of most of the other ‘eastern bloc’ carriers. I was surprised at the number of East German ‘spotters’ there, but no airband radios of course. I guess that with the repressive restrictions on GDR citizens travelling abroad at that time, the Schonefeld terrace was probably the closest many of them got in those days, to ‘getting away from it all’