On Thu, Mar 18, 2021 at 03:06 PM, Eric wrote:
but good quality bnc is good to 4
Ghz
You do need very good BNC (cables, connectors, constant contact surfaces) to get even close to that. Even good quality BNC tends to be visibly inferior above 500 - 800 MHz. I'd rather leave GR874 on and use a converter plug to BNC or a GRC-to-BNC cable when needed. OTOH, it's "only" a 12ns edge and with a pulse generator, amplitude loss is less important than correct and constant impedance all-through but even then I'd see no reason not to leave things as they are and use a converter plug.
Raymond
Raymond Domp Frank