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

[Wayne Burdick]

Aggressive settings of the noise blanker can cause signal artifacts. Make sure the NB is off for any wide band tests.

73,
Wayne
N6KR


> On Jan 26, 2022, at 11:20 AM, Victor Abell <vabell at lsof.comcastbiz.net> wrote:
> 
> 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
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to n6kr at elecraft.com