[time-nuts] 5MHz x 10MHz
Brian, WA1ZMS
wa1zms at att.net
Mon Aug 5 01:29:22 UTC 2013
My 2 cents....
In a talking to Charles Wenzel about
this very topic some 13 yrs ago, I liked
it when he said sometimes it comes
down to the "quartz-to-crud ratio" of
the crystal that makes all the difference
for a given crystal frequency.
-Brian, WA1ZMS
On Aug 4, 2013, at 8:40 PM, Bob Camp <lists at rtty.us> wrote:
> Hi
>
> As with any real question, the answer is always "that depends…".
>
> Different offsets at different carrier frequencies will make you look at different things….
>
> Bob
>
> On Aug 3, 2013, at 9:01 AM, Magnus Danielson <magnus at rubidium.dyndns.org> wrote:
>
>> On 08/03/2013 02:28 PM, Bob Camp wrote:
>>> Hi
>>>
>>> The whole drop frequency / better Q thing really only applies if you are looking for ADEV with tau's > = 0.1 second. If you are after phase noise, then there are other things to worry about.
>> White noise and flicker noise of oscillator and buffer amps comes to
>> mind. Naturally noise in the crystal itself.
>>
>> Cheers,
>> Magnus
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