[Elecraft] K3EXREF Questions

[Paul Christensen]

The slow flash of the asterisk changes to a steady asterisk upon loss of the 
external reference, and presumably when the external reference falls 
reasonably outside of level and frequency tolerances.  One can confirm the 
operation of K3EXREF by unplugging the precision reference and noting a 
steady asterisk on the LCD display while in menu mode.  Upon re-connection 
of the external reference, the asterisk will again start flashing.  It is 
definitely confirmation that a precision external reference is active and 
present.

Paul, W9AC

----- Original Message ----- 
From: "David Pratt" <david at g4dmp.fsnet.co.uk>
To: "Ron D'Eau Claire" <ron at cobi.biz>
Cc: "'Julian, G4ILO'" <julian.g4ilo at gmail.com>; <elecraft at mailman.qth.net>
Sent: Saturday, April 16, 2011 1:21 PM
Subject: Re: [Elecraft] K3EXREF Questions


> Ron - Shouldn't the asterisk be blinking if the K3 is being controlled
> by and external reference?  The presence of an asterisk merely indicates
> that it has at some time been controlled by a reference since the last
> power-up.
>
> 73 de David G4DMP
>
> In a recent message, Ron D'Eau Claire <ron at cobi.biz> writes
>>
>>I can answer 2, Julian. It is yes. If there is no external 10 MHz signal,
>>the K3 reference oscillator reverts to its normal operation. An asterisk
>>(splat, whatever one wants to call it) appears on the LCD when there's an
>>external signal detected, so you know at a glance whether the K3 is being
>>controlled by the external signal.
> -- 
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> | David M Pratt, Kippax, Leeds.   |
> | Website: http://www.g4dmp.co.uk |
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