[Elecraft] 10 MHz external reference - GPSDO

[David Anderson]

There was a thread about this recently (last few days).

The instructions for the K3 give the spec as up to plus and minus 2Hz at 10 MHz.


73 from David GM4JJJ

> On 11 Mar 2016, at 16:55, Richard W. Solomon <w1ksz at earthlink.net> wrote:
> 
> I am a tad confused over this issue. Perhaps I need to read up on how
> Elecraft 
> controls frequency.
> 
> My understanding on a "Locked" frequency would infer that the result would
> be 
> a LOT closer than 2 Hz @ 10 MHz. 
> 
> Is there a detailed description of the process somewhere that I could read ?
> 
> 73, Dick, W1KSZ
> 
> -----Original Message-----
> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of David
> Anderson
> Sent: Friday, March 11, 2016 9:04 AM
> To: Gary at ka1j.com
> Cc: Elecraft at mailman.qth.net
> Subject: Re: [Elecraft] 10 MHz external reference - GPSDO
> 
> You may want to have a look at this for some background on real world
> frequency stability, and remember that the K3 isn't phase locked to the
> external reference and is only going to be within 2Hz. 
> 
> https://www.febo.com/pages/stability/
> 
> 73 from David GM4JJJ
> 
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