[K3] White paper confusion

[alorona]

 
You probably remember that I recently put out a little tutorial to the group on the K3 AGC. Immediately after I put those measurements out there, some of the gurus here told me that it could be confusing, and might be misunderstood, so I pulled it. I don't know who told the ARRL Contest Update about it-- it wasn't me-- but they made a general announcement to the contesting community about it. They probably should have checked it out before doing that.

I've been getting inquiries from folks asking where the heck the paper is, and I've had to tell them that I pulled it. However, the paper had simply repeated what was in another paper that's been out there for years. Jack Smith, K8ZOA, made much better measurements that I would encourage anybody to read. However, I've been told that DX Engineering, which acquired Jack's Clifton Laboratories web page, has pulled that paper as well! So the K3 world has been plunged into darkness...

I just wanted to make a general announcement that the paper's no longer available. Anybody who has it, please trash it.

Thanks,

Al  W6LX
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[Ken Chandler]

Just wondering if it will be replaced with another model!!

Ken.. G0ORH

Sent from my iPad

> On 25 Mar 2017, at 17:26, Al Lorona <[hidden email]> wrote:
>
>
> You probably remember that I recently put out a little tutorial to the group on the K3 AGC. Immediately after I put those measurements out there, some of the gurus here told me that it could be confusing, and might be misunderstood, so I pulled it. I don't know who told the ARRL Contest Update about it-- it wasn't me-- but they made a general announcement to the contesting community about it. They probably should have checked it out before doing that.
>
> I've been getting inquiries from folks asking where the heck the paper is, and I've had to tell them that I pulled it. However, the paper had simply repeated what was in another paper that's been out there for years. Jack Smith, K8ZOA, made much better measurements that I would encourage anybody to read. However, I've been told that DX Engineering, which acquired Jack's Clifton Laboratories web page, has pulled that paper as well! So the K3 world has been plunged into darkness...
>
> I just wanted to make a general announcement that the paper's no longer available. Anybody who has it, please trash it.
>
> Thanks,
>
> Al  W6LX
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> Elecraft mailing list
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[Elecraft mailing list]

The Clifton Laboratories paper from 2009 is still obtainable via the Internet Archive's Wayback Machine at this link: https://web.archive.org/web/20161225060408/http://cliftonlaboratories.com/Documents/Elecraft%20K3%20Transceiver%20AGC%20Parameters%20and%20S-meter.pdf 

-Brian, N9ADG
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[Don Wilhelm]

That paper is based on the old AGC parameter ranges.  They were expanded
by firmware 4.51
A more recent discussion with charts can be found on Fred Cady's website
http://www.ke7x.com/home/miscellaneous-k3-information/agc-4-51.

There is additional information in my website "Noisy K3" article which
can help you in judging the results of changes to the AGC parameters.

73,
Don W3FPR

On 3/25/2017 2:48 PM, Brian Moran via Elecraft wrote:
> The Clifton Laboratories paper from 2009 is still obtainable via the Internet Archive's Wayback Machine at this link: https://web.archive.org/web/20161225060408/http://cliftonlaboratories.com/Documents/Elecraft%20K3%20Transceiver%20AGC%20Parameters%20and%20S-meter.pdf
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[Joe Subich, W4TV-4]

On 3/25/2017 1:26 PM, Al Lorona wrote:
> However, the paper had simply repeated what was in another paper
> that's been out there for years. Jack Smith, K8ZOA, made much
> better measurements that I would encourage anybody to read.
> However, I've been told that DX Engineering, which acquired Jack's
> Clifton Laboratories web page, has pulled that paper as well! So
> the K3 world has been plunged into darkness...

Typical ... since DX Engineering does not sell Elecraft, but instead
pushes the inferior Icom noise generators, one could expect them to
bury any of Jack's work that is specific to Elecraft.

73,

    ... Joe, W4TV


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