[Elecraft] KREF3 External Reference card

[elecraft at g4fre.com]

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