On Thu, 02 Sep 2021 03:30:18 -0400, time-nuts-requ...@lists.febo.com wrote: > Send time-nuts mailing list submissions to > time-nuts@lists.febo.com Re: time-nuts Digest, Vol 209, Issue 1
> > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 01 Sep 2021 13:42:38 -0400 > From: "Mike Monett" <z...@teksavvy.com> > Subject: [time-nuts] Affordable 160 GHz Sampler > To: time-nuts@lists.febo.com > Message-ID: <8d3258$53v...@smtp11.teksavvy.com> > Content-Type: multipart/mixed; > boundary="1C2F05C9202109011342380980001" > > Conventional samplers for home brewers usually go to 1 GHz. The SD-32 > sampler for the Tektronix 11801C mainframe goes to 50 GHz. The HP 110GHz > oscilloscope costs around $1.3 Million USD, with a 10-bit resolution. Very > impressive. > > https://www.youtube.com/watch?v=DXYje2B04xE > > I have invented a new sampling technology that promises 160 GHz bandwidth, > yet is affordable to home experimenters. If you can afford an IPhone or > IPad, you can afford this sampler. > > This technology is not pie-in-the-sky. I made a basic 5 GHz version for the > University of Ludwigshafen, Germany, and they were very pleased with the > results. I am attaching images of the response compared to a > Tektronix 1502 TDR and the pcb as proof. > > This was the first prototype, and I have made significant improvements > since then. > > I have two questions for the time-nuts group: > > 1. where would a sampler with this bandwidth be useful? Everywhere. > 2. where can I find signal sources at these frequencies to check the > response? If you have such a source, you'll be interested. If not, no need. It turns out that this first appeared circa 2003, on electronics newsgroups. Google on "Mike Monett ghz sampler" (without quotes) for the stories. Such as: <https://www.electronicspoint.com/forums/threads/final-report-binary-sampler.18908/> What has changed since then? It's been almost 20 years, and undersampling is now common, often being called "operating in the Nth Nyquist zone" (ie, above the Nyquist sampling limit) or the like. Joe Gwinn PS: > -------------- next part -------------- > A message part incompatible with plain text digests has been removed ... > Name: COMP01.GIF > Type: image/gif > Size: 6580 bytes > Desc: not available > -------------- next part -------------- > A message part incompatible with plain text digests has been removed ... > Name: COMP02.GIF > Type: image/gif > Size: 6858 bytes > Desc: not available > -------------- next part -------------- > A message part incompatible with plain text digests has been removed ... > Name: PROTO2T.jpg > Type: image/jpeg > Size: 43276 bytes > Desc: not available Note that the attachments were stripped. Where might these be found? JMG _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
