From: Mark Randol ([email protected])
Date: Fri Nov 12 1999 - 12:13:12 PST
"Mark Randol (ryvw50)" wrote:
>
> Larry McMillan wrote:
> > They do. It's a 2GHz model called the TDS794. We have one and it gives
> > very satisfactory performance. By the way, the Tek 580D is exactly the
> > same as the 784 except that it has a black and white display instead of
> > color and it costs a whole lot less. We have that one too, and it is
> > also very good. Got rid of a couple of our 1GHz LeCroys when we got
> > these, and now only use our two remaining LeCroys when both Tek scopes
> > are already occupied. Tektronix doesn't make a black and white version
> > of the 2GHz 794 or else we probably would have gotten it instead too.
>
> OK, maybe I don't get it being a mostly analog type, but why is a
> 2GHz analog bandwidth with a 1-4GSa/s rate better than a 1GHz one
> with a 2-8GSa/s rate? Sure, according to Nyquist you could see
> up to 2GHz with a 4GSa/s rate, but if you're going to be able to
> see much, you need a sample rate about 5-10X the analog
> bandwidth.
<snip>
Whut da?? I think we had this discussion over a year ago, along
with my posting and it shows up in my emailbox today?
Strange... I wonder if the glitch is on my end, Ray's end, or
something else (user error)?
-- Mark Randol, RF Measurements Engineer Motorola SPS, Inc. M/S EL381 2100 E. Elliot Road Tempe, AZ 85284 (480)413-8052 Voice (480)413-3455 FAX [email protected]**** To unsubscribe from si-list: send e-mail to [email protected]. In the BODY of message put: UNSUBSCRIBE si-list, for more help, put HELP. si-list archives are accessible at http://www.qsl.net/wb6tpu/si-list ****
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