[Elecraft] K3EXREF Query

[Mike Harris]

Why not just leave the frequency reference switched on.  OK with a TCXO, 
not so good with a Rubidium standard.  Power consumption must be trivial 
compared with the normal domestic base load.

Regards,

Mike VP8NO

On 14/10/2014 10:41, David G4DMP wrote:
> I have not seen any replies to this, Brian.
>
> As I see it, the only way out is to go into REF CAL from the Config menu
> and then press 2 to disable XREF until the frequency standard has
> locked.
>
> Like you, I have found that if XREF is enabled when the K3 is switched
> on, the K3 drifts unacceptably for 15 minutes until the frequency
> standard has settled down.
>
> 73 de David G4DMP
>
> In a recent message, Brian <alsopb at nc.rr.com> writes
>> I was wondering if there is any kind of "sensibility" check done on the
>> input reference?
>>
>> For example, I've been fooling around with a double oven controlled XO.
>>
>> Starting from cold it is > 200Hz off.  It takes ten minutes or so to be
>> within 10 Hz. It gets into the tenths of Hz accuracy region in another
>> 10 minutes.
>>
>> Clearly one would not want the K3EXREF to lock to this oscillator
>> during the first 10 minutes or so.
>>
>> 73 de Brian/K3KO
>