[Elecraft] 10Mhz sig source for 2m terest/eme...specific question

[Don Wilhelm]

Randy,

The External Reference will lock no matter which TCXO is used.  Yes, 
both the standard +/- 5ppm and +/-1ppm TCXOs are true TCXOs.
The difference between the two will be the desired short term 
temperature stability when the External Reference is not active.

I think the rest of your list is accurate.

Your choice of the external reference type is quite apart from this 
response.  I have the Thunderbolt and am quite happy with it.

73,
Don W3FPR

On 5/9/2017 7:33 PM, Randy Lake wrote:
> Good evening all. After seeing all the posts on GPSDO's I need a bit of
> advice and clarification.
> I have a K3 with new Synth boards (main and sub). I am thinking I need
> equipment for freq stabilization/reference. I am looking at all of the
> following and am not sure if I actually need all or any, and if I should,
> do I need all of the following:
> Will be using -  *K144XV
> <http://www.elecraft.com/manual/K144XV%20Data%20Sheet%20rev%204sm.pdf>
> Internal
> 2 M 10w Option*
> *KTCXO3-1  TCXO*
> *K3EXREF*  *Ext. Frequency Reference Input*
> *K144RFLK  K144XV Reference Lock Board *
> Leo Bodnar GPS Frequency Reference (or something similar)
> Any guidance will be greatly appreciated!