[Elecraft] W2 Questions

[Phil Hystad]

Wes,

Thanks for the link to what looks like a very interesting document.  Just what I have been looking for.  And, thanks to others for the suggested resources.

phil


On Dec 9, 2009, at 7:01 PM, Wes Stewart wrote:

> 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 <w9ac at 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" <k7peh at comcast.net>
>> To: "Elecraft" <elecraft at 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
>>> 
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> 
> 
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