This sort of chicanery serves to make most people cautious about different and expensive cables bearing extravagant claims of specialness, usually quite rightly. JPGIt taken until quite recently to create a situation where the need for careful cable engineering has started to reach a peak, even for comparatively everyday links between a camera and monitor or vision mixer. If we know roughly how impedance works, it should be fairly clear why low-capacitance cable makes fast signals more intelligible, extending the range.
This wo not be a surprise for many electronics specialists who might start sucking air through their teeth at any suggestion of putting signals this fast down a flexible copper cable at all. Optical fibres are already widely deployed in specific areas of television….