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Elecraft Digest, Vol 124, Issue 15 KX3 CW Drift

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Elecraft Digest, Vol 124, Issue 15 KX3 CW Drift

Focus Group Thoughts for Elecraft Re: KX3 and K3 drift on VHF Digital Applications

What about adding an external phase lock option that would also allow
the 10 MHz reference phase lock and GPS sync? Many of the digital mode aps are
needing this kind of stability and the KX3 with an internal 2 meter board or external XV transverter family choice. The XV series transverter LOs could have a kit for phase lock too.

There are so many interested in WSPR and you have one of the gurus up north of Elecraft who's already done a design. This also would bring the Elecraft product up to what's new and state-of-the-art for both the K3 and KX3 in digital communications....

John, W1QS

Message: 22
Date: Sun, 17 Aug 2014 09:21:53 -0700
From: Wayne Burdick <[hidden email]>
To: Chris Johnson <[hidden email]>
Cc: Elecraft Reflector <[hidden email]>
Subject: Re: [Elecraft] KX3-2M CW Drift
Message-ID: <[hidden email]>
Content-Type: text/plain; charset=us-ascii

This is within spec, though we're still looking at ways to further reduce it.

73,
Wayne
N6KR

On Aug 17, 2014, at 4:20 AM, Chris Johnson <[hidden email]> wrote:

> I have two KX3's each with a 2M module. Both units have had the temp
calibration done to them. When using CW, there is a noticeable drift in the
received CW side tone. It has an unsable warble back and forth slowly +/- ~10
HZ or so. Is this the natural drift of the 2M unit I'm seeing here? If so I'm
assuming that's as good as it gets.
>

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Don Wilhelm-4

K3, KX3 and XV series external 10 MHz reference

John,

That is already in place for the K3 with the External Reference (part of
the KXV3 option).
True that does not help with the XV series LO, and I am not certain
where another connector could be added to the KX3 unless the 2 meter
option were not installed and the SMA connector for that option were
used for the external reference option.

73,
Don W3FPR

On 8/18/2014 6:02 PM, John Lawrence via Elecraft wrote:

> Focus Group Thoughts for Elecraft Re: KX3 and K3 drift on VHF Digital Applications
>
>
> What about adding an external phase lock option that would also allow
> the 10 MHz reference phase lock and GPS sync? Many of the digital mode aps are
> needing this kind of stability and the KX3 with an internal 2 meter board or external XV transverter family choice. The XV series transverter LOs could have a kit for phase lock too.
>
> There are so many interested in WSPR and you have one of the gurus up north of Elecraft who's already done a design. This also would bring the Elecraft product up to what's new and state-of-the-art for both the K3 and KX3 in digital communications....
>
>

______________________________________________________________
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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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Don Wilhelm-4

K3, KX3 and XV series external 10 MHz reference

In reply to this post by Elecraft mailing list

Correction - I was just informed of the "error of my ways".
The K3EXTREF option is separate from the KXV3.

73,
Don W3FPR
----------------------------------------------
John,

That is already in place for the K3 with the External Reference (part of
the KXV3 option).
True that does not help with the XV series LO, and I am not certain
where another connector could be added to the KX3 unless the 2 meter
option were not installed and the SMA connector for that option were
used for the external reference option.

73,
Don W3FPR

On 8/18/2014 6:02 PM, John Lawrence via Elecraft wrote:

Bob-270

Re: Elecraft Digest, Vol 124, Issue 15 KX3 CW Drift

In reply to this post by Elecraft mailing list

Not that I had a "need" but I did instal the K3EXREF with a Trimble Thunderbolt
GPSDO. So I have the 10MHZ reference available.

I also have no present "need" for the XV144 & XV432 to be locked to that
external reference. However were a kit available to do it I would purchase the
kit/accessory to do so.

i would like to see it as a product.

73,
Bob
K2TK ex KN2TKR (1956) & K2TKR

On 8/18/2014 6:02 PM, John Lawrence via Elecraft wrote:

> Focus Group Thoughts for Elecraft Re: KX3 and K3 drift on VHF Digital Applications
>
>
> What about adding an external phase lock option that would also allow
> the 10 MHz reference phase lock and GPS sync? Many of the digital mode aps are
> needing this kind of stability and the KX3 with an internal 2 meter board or external XV transverter family choice. The XV series transverter LOs could have a kit for phase lock too.
>
>
> There are so many interested in WSPR and you have one of the gurus up north of Elecraft who's already done a design. This also would bring the Elecraft product up to what's new and state-of-the-art for both the K3 and KX3 in digital communications....
>
>
> John, W1QS
>