I knew would get comments on that. I simply did not provide enough information. I thought most everyone who has done it would know what I was refering to.
Acuracy of these instruments is not one number, it is a 3 dimensional chart, and time is the 4th dimension. Forget I even mentioned it. I do not intend to go into an error analysis now. Didier > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Mike S > Sent: Saturday, May 10, 2008 9:19 AM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] HP 5370B > > At 09:22 AM 5/10/2008, Didier Juges wrote... > >Most microwave network analyzers have amplitude resolution > of 0.01dB, > >while their accuracy is just around 1dB in most cases. > > > >I have had to argue too many times that a piece of equipment > with a 2dB > >p-p requirement on flatness was just fine when it measured 2.01dB on > >the HP network analyzer. I would not have gotten in that argument if > >the data had been 1.99dB. Go figure. > > I figure you're both wrong. If the measuring instrument is no > better than 1 dB absolute, you can't expect to do it - a flat > line measurement could represent an actual + or - 1 db, the > limit of the spec. > > No virus found in this outgoing message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.23.11/1422 - Release Date: 5/8/2008 5:24 PM _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.