tag:blogger.com,1999:blog-26385730250380897.post1099468542086867465..comments2024-02-26T16:02:17.461-05:00Comments on Reading Jim Williams: Vintage scopes are better part 1Doctor Analoghttp://www.blogger.com/profile/10331958951440669259noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-26385730250380897.post-83453244378590558232012-05-02T10:42:21.988-04:002012-05-02T10:42:21.988-04:00A very important point seems to have been missed:a...A very important point seems to have been missed:a digital scope can be subject to aliasing and totally mangled display. You'll find a detailed discussion in the comments to web page<br />http://www.eevblog.com/2010/05/11/eevblog-86-buy-a-real-analog-oscilloscope-please/<br /><br />This affects observation of a short segment with the timebase set for a low repetition rate, e.g., the detail of a PAL television signal with the timebase set to display two fields (40ms). Although a DSO can capture samples at a huge rate, it can't store so many samples, so the sampling rate is decreased radically as the time/div increases. The most expensive scopes have resolved this to some extent,<br /><br />See the discussion (URL above). HTH, pol098Anonymousnoreply@blogger.com