Try searching ST 170 for flow data.
The ZXTuner cams are unpublished, and actually they were ground for Esslinger by Web Cams. If you call them they can provide you with data. Just be sure to mention that it's a euro ST 170 (that's how it's listed in their system).
There are no cams for the SVT/ST 170 in your software. So don't bother looking.