And take a look at HP's note AN64 (cp.literature.agilent.com/litweb/pdf/5965-6630E.pdf), particularly chapter VII. After that, the question about whether more resolution is necessary or meaningful might be moot.
--- On Wed, 12/9/09, Paul Christensen <w...@arrl.net> wrote: > > You asked the question about what it takes to achieve > better accuracy. You > may want to read N8LP's excellent article in QEX from a few > years ago, along > with articles from Warren Bruene, Roy Lewallen, John > Grebenkemper, and > others who have published on the accuracy subject. > > Paul, W9AC > > > ----- Original Message ----- > From: "Phil Hystad" <k7...@comcast.net> > To: "Elecraft" <elecraft@mailman.qth.net> > Sent: Wednesday, December 09, 2009 7:51 PM > Subject: [Elecraft] W2 Questions > > > >A few questions about the W2 meter: > > > > 1. The posted accuracy is +- 0.5 dB which I > calculate as about +- 12 %. > > Is this full scale accuracy and if so is half scale > possibly more accurate > > or is this the most accurate the meter is likely to > be. I am not even > > sure if it makes a difference for full scale or half > scale for a digital > > meter so that part of my question may be moot. > > > > 2. What does it take to achieve an accuracy > better then 5 % (for > > example), and is it possible to achieve an accuracy of > 1 % or better? I > > am curious as to where the money needs to be spent in > achieving such > > accuracy. Is it in the directional coupler? > > > > 3. I am thinking that the company that can build > the best receiver on the > > market (the K3) can also build the best meter. > So, would Elecraft > > principles consider a future super-accurate, best on > the planet, amateur > > radio RF/SWR power meter? Oh, I think a current > meter would be cool too. > > > > And, I know that having meter accuracy is of little > importance in ham > > radio but there is some kind of deep seated quirk in > me that wants > > accuracy just for the heck of it. Certainly 5 % > is achievable, right? > > > > 73, > > phil, K7PEH > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft@mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
