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Ask Keysight

https://www.keysight.com/en/pdx-2935683-pn-UXR0802A/infiniiu...

That said most signal processing scopes at high frequencies are analogue, so you are dealing with Giga Samples / Second not bps. But yes to to make sense of the actual data it would require some serious networking and storage but that might not be necessary for many applications.

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Once you have performed the sampling, or even before that technically, information theory provides the connection between the analogue and the digital.

> That said most signal processing scopes at high frequencies are analogue

I think the state of the art is DC to a few (10s?) GHz with direct sampling, impressive stuff.

By direct sampling do you mean non-interleaved? The UXR oscilloscope he linked has a set of 256 Gsample/sec digitizers which can do the full DC to 110GHz on all 4 channels.

Clearly I'm not up to speed then - although I had in mind one I might one day be able to buy myself as opposed to be the absolute tail end of T&M equipment worth selling.

Yeah that scope alone costs over $1M, the probes for it probably cost more than what most people would or could pay for their house.

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