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Old 23rd April 2012, 10:57 PM   #1
JZatopa is offline JZatopa  United States
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Default Atomic clock oscillator anyone?

Just thought I should put this here.

Nuclear Powered Preamp Promises Incredibly Excessive Accuracy With a Built-in Atomic Clock
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Old 23rd April 2012, 11:02 PM   #2
49 - for the 18th time
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Boy - o - boy. I can't wait to see a clone knock off on fleabay for like a couple of hundred bucks!!!!!
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Old 23rd April 2012, 11:18 PM   #3
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You mean like this?
http://www.ebay.com/itm/RUBIDIUM-DAT...item2a1ab67d33

Last edited by SoNic_real_one; 23rd April 2012 at 11:20 PM.
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Old 23rd April 2012, 11:24 PM   #4
JZatopa is offline JZatopa  United States
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Has anyone on here tried this and measured the results?
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Old 24th April 2012, 09:08 AM   #5
qusp is offline qusp  Australia
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rubidium clocks are of little importance to audio and is little more than a marketing buzzword. the atomic reference is created for long term accuracy, for keeping time base etc, close in short term phase noise and PSRR is what is important for audio clocks
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Old 24th April 2012, 09:20 AM   #6
SY is offline SY  United States
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Howabout a DIY atomic clock?
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Old 24th April 2012, 10:02 AM   #7
oshifis is offline oshifis  Hungary
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Nuclear-powered, ha-ha Hopefully it does not explode or radiate
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Old 24th April 2012, 10:41 AM   #8
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Quote:
Originally Posted by qusp View Post
rubidium clocks are of little importance to audio
Is not a general situation, some of them are better than others in the phase noise and could be used in audio. But yes, it is unnecessary mainly because the lifespan of the lamp is 5-10 years.

Click the image to open in full size.
http://www.ke5fx.com/rb.htm

Last edited by SoNic_real_one; 24th April 2012 at 10:43 AM.
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Old 25th April 2012, 07:10 AM   #9
qusp is offline qusp  Australia
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yeah I meant to clarify that point, generally what they are prized for is long term stability, not short term, that doesnt mean that as a result of being an overall high performance clock the odd one is also good in close in phase noise/jitter as well, but its not the main goal and is fairly uncommon, so unless you get a really nice one $$$$ its unlikely to be much good for audio. so it comes own to the fact you are paying for features you dont need and for less money you can do better with other types of clock that are optimized for short term jitter. those atomic XOs that are good audio clocks, the fact they are rubidium doesnt have much to do with it

Last edited by qusp; 25th April 2012 at 07:12 AM.
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Old 25th April 2012, 04:36 PM   #10
JZatopa is offline JZatopa  United States
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Silly question, can you use 2 clocks and average their performance?
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