[time-nuts] Oscillator Phase Noise: A 50-Year Review

[KA2WEU at aol.com]

Good morning,
 
yes I saw the reference  but he did not point out what it was or  function, 
This paper is more about people and events and very little since  .......
 
Ulrich 
 
 
In a message dated 8/6/2016 2:26:54 A.M. Eastern Daylight Time,  
michaeljwouters at gmail.com writes:

On Sat,  Aug 6, 2016 at 9:34 AM, KA2WEU--- via time-nuts
<time-nuts at febo.com>  wrote:

> Leeson produced a somewhat random selection of papers ,  omitting 
important
> things like the sapphire based best in the word .  This was not even
> referenced  .

The reference [145] at the  end of the sentence that mentions sapphire
oscillators also discusses a  hybrid photonic-microwave oscillator that
incorporates a room-temperature  sapphire oscillator so I think he
tried to cover both subjects with that  single reference.

The paper has a misleading title. It suggests that it  is a history of
the last 50 years, when it is about events roughly 50 years  ago. The
abstract makes this clear though. So I didn't really expect to  read
much about developments past  1970.

Cheers
Michael


On Sat, Aug 6, 2016 at 9:34 AM,  KA2WEU--- via time-nuts
<time-nuts at febo.com> wrote:
> Some of  the cited references are poor, modern non-linear mathematic is  
kind
>  of omitted . After all the oscillator  phase noise  speculation, I would
> have really liked to see at last a reference  about the most modern
> measurements  techniques and it validation.  How do you calibrate a phase 
noise test
> system.
>
> Leeson  produced a somewhat random selection of papers , omitting 
important
>  things like the sapphire based best in the word . This was not even
>  referenced  .
>
> I think he is really out of it  .
>
> 73 de N1UL
>
>
>
> In a message  dated 8/5/2016 7:11:18 P.M. Eastern Daylight Time,
> john at miles.io  writes:
>
>>
>> Very selected and incomplete  references and the equally   important
>>  question
>> of measurements strangely not   covered
>>
>> 73 de N 1  UL
>>
>
>  I suppose he could  write an equally-lengthy article on measurements  
alone,
> but leaving out the  post-1970s history entirely was a  little
> disappointing.  It was strange  to hit "ctrl-f Rohde"  and see only one 
reference in the
> bibliography.   Same for  "Hewlett."  "Rubiola" brings up one hit (but no
> citations)  and  "Stein" brings up none at all.
>
> -- john,  KE5FX
> Miles Design  LLC
>
>
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