[Elecraft] KREF3 External Reference card

[Eric Swartz - WA6HHQ, Elecraft]

The KREF3 is not in current planned development. I thought we had 
removed the references to it in all of our docs. Is it still showing up 
somewhere?

73, Eric
---

On 6/9/2010 9:49 AM, elecraft at g4fre.com wrote:
> This question is one I have been asking annually at the Elecraft booth at
> Hamcom in Dallas for the last 2 years. I will be asking again on Friday. The
> last information given was in jun 2008 when I was told "availability in Jan
> 2009", heard no dates since! Based on this I didnt order the high spec
> reference for either of my K3.
>
> Dave
>
> ww2r
>
> Message: 40
> Date: Wed, 9 Jun 2010 16:51:53 +0100
> From: David Pratt<david at g4dmp.fsnet.co.uk>
> Subject: Re: [Elecraft] KREF3  External Reference card
> To: Elecraft Reflector<elecraft at mailman.qth.net>
> Message-ID:<sz6xoxAZi7DMFwlS at g4dmp.fsnet.co.uk>
> Content-Type: text/plain;charset=us-ascii;format=flowed
>
> I am afraid that I think you will find that it's on the back burner,
> Trevor, but I hope Wayne will reply and then we shall all know once and
> for all.  I have been pushing for this for a long time as it would be
> nice to be able to feed my 10MHz Rubidium standard into J3 to get near
> precise calibration.
>
> I suspect that the problem is due to the internal reference oscillator
> of all our K3s being different. Although the KREF3 schematic shows the
> oscillator to be on 49.380 MHz, we all adjust this during the K3
> calibration procedure. (Mine is on 49.379744)
>
> I could be wrong, but I shall await Wayne's response.
>
> 73 de David G4DMP
>
>