[Elecraft] Q and A about K3S

[Dauer, Edward]

Hello Wayne ‹

A few days ago I posted a query here, noting how much info is coming out
about the K3S as we go through participants¹ questions and others¹
answers, and asking if there couldn¹t be some way to gather them all up
after a while, for reference in one neat place.  The existing on-line FAQs
are well-done and helpful; but a good deal more info - like the questions
and your answers below - is being added to it as we go.  Any chance of
Elecraft drafting a revised FAQ sometime including the items asked about
on the reflector?

Thanks,

Ted, KN1CBR


>Message: 27
>Date: Tue, 19 May 2015 13:59:55 -0700
>From: Wayne Burdick <n6kr at elecraft.com>
>To: David and Dianne on Comcast <dhhdeh at comcast.net>
>Cc: elecraft at mailman.qth.net
>Subject: Re: [Elecraft] K3 to K3S Upgrade Questions for Elecraft
>Message-ID: <52AB353D-3D09-47E5-8971-B51293D29E85 at elecraft.com>
>Content-Type: text/plain; charset=us-ascii
>
>David and Dianne on Comcast <dhhdeh at comcast.net> wrote:
>
>> I have several questions for you as I consider the K3S upgrade decision
>>in the near term.
>> 
>> My early K3 (Feb 2008) has an early sub-receiver installed.  I may be
>>interested in purchasing a K3S but would like to use my current
>>sub-receiver in the new K3S to keep the cost down. I believe you
>>indicated earlier that it is compatible and is possible to do. So....
>> 
>> 1. Will my original sub-receiver's DSP board also work in the K3S?
>
>Yes.
>
>
>> Will a new sub-receiver DSP board work with an original sub-receiver in
>>the K3S?
>
>Yes.
>
>
>> Any other considerations or suggestions?
>
>No. The DSP board we're changing is the one for the main
>receiver/transmitter. That's the one that has the new AF circuitry on it.
>
>
>> 2. Can you summarize the changes from the early KPA3's to the more
>>recent KP3A?
>
>The KPA3A uses different output devices that are more readily available.
>Otherwise specs are the same.
>
>
>> 3. Has the K3 mixer board and its circuit on the K3 RF board undergone
>>any changes from the early K3's to the K3S?
>
>The K3 RF board has had a few minor updates, all covered by existing mod
>kits. The K3S adds an attenuator section (to provide 5/10/15 dB settings)
>and a completely revised layout using 4 layers to reduce noise pickup and
>improve port-to-port isolation.
>
>73,
>Wayne
>N6KR