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From: "Frank Bemelman"
Subject: Re: SPICE goes nuts again
Date: Fri, 3 Jan 2003 18:03:22 +0100
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Organization: EuroNet Internet
NNTP-Posting-Date: 03 Jan 2003 17:03:34 GMT
"Paul Burridge" schreef in bericht
> Still trying to get to grips with the basics of simulation.
> I've just tried a simple experiment hooking up an ac voltage source to
> a voltmeter. The voltage source is set up to be 10Ghz at 1v
> peak-to-peak and the TA is set up as follows:-
> start time: 0
> stop time: 1s
> step 5m
> step ceiling 5m.
> when I run the simulation I get a 1v p-p sine wave alright, but over
> the course of 1 entire second on the graph, only about
> one-and-a-quarter cycles are reproduced, instead of the ten thousand
> million (yeah, I know it's not going to resolve that lot but you know
> what I mean) a reasonable person might expect. What's going on here?
> I've tried setting the source to 10Meg and 10K but basically just get
> proportionately less of one complete cycle displayed. It's as if
> there's a screw-up in the frequency scale somewhere. Any ideas?
Perhaps an aliasing problem. Try 10.1 GHz.
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