[Elecraft] K4HD Executive Summary Request -- strong signal performance

[Victor Abell]

While I have a K4HD module on order for my K4D (0406) I am also
interested in Wayne's comment about strong signal performance.

On the CW bands, particularly 17 meters where I often operate,
many times I have observed strong CW signals whose keying causes
key clicks to appear some KHz away from their frequency.  For example,
the other night a strong signal from W1AW code practice at 18.0975
could be copied by its key clicks at 18.079.

I have heard this behavior on other bands -- e.g., 40 and 20 meters --
and have reported it to support at elecraft.com, along with videos.
So far I haven't heard any explanation for these key clicks.  It could
be that I have a flawed K4D or am using some settings that cause it.
(I wasn't using either pre-amp when I heard  W1AW's clicks.)

Vic, W9RGB

> Date: Tue, 25 Jan 2022 11:32:19 -0800
> From: Wayne Burdick <n6kr at elecraft.com>
> To: gordon young <gngyoung at gmail.com>
> Cc : elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K4HD Executive Summary Request
> Message-ID: <06E94256-42F9-438F-AF46-ADE5FDE4D9F3 at elecraft.com>
> Content-Type: text/plain;	charset=utf-8
>
> Hi Gord,
>
> The ongoing worldwide supply chain debacle has impacted K4HD module development. We?ve already redesigned PC boards twice to work
> around chip shortages.
>
> We?ll keep everyone updated. 
>
> Meanwhile, we?re hearing from those who took delivery of a K4D instead that performance in strong-signal conditions is excellent. 
>
> 73,
> Wayne