Re: Advice on affordable USB oscilloscope

On 2007-03-21, John E <incognito@xxxxxxxxx> wrote:
400 MSa/s maximum real-time sample rate and 25 GSa/s maximum equivalent
sample rate
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Can you explain to the less-knowledgeable how is 400MS = 25GS?

They sample it over multiple cycles and combine them. If the signal
isn't repeating identically it doesn't work. "equivalent sample rate"
is a BS spec; if I *had* a repeating signal I would be using the analog
scope anyway. My advice is to ignore it and pay attention to the 400.
.