I was wondering, If we had a system in which we limited the stray capacitance by shortening the cable (standard co-ax) to about 1 foot, and we put a REALLY fast signal down there, say of the order of fs. Would we see a sharp spike which was of the order of the RC time constant (capacitance and the measuring resistor)? Eg. a 50ohm scope. Or would we see nothing at all because it is being 'filtered out' in effect by the cable? any ideas?