[time-nuts] CS frequency standard

[Magnus Danielson]

It's the ion-pump that needs running.
Then, the OCXO needs heating before running the cesium tube.

Cheers,
Magnus

On 07/10/2015 07:25 PM, Pete Lancashire wrote:
> Pretty much the same as Paul, I do it every 4 months. I'll soon have a
> timer to turn the unit on a few hours every 120 days or something like that.
>
>
>
>
>
> On Fri, Jul 10, 2015 at 6:53 AM, paul swed <paulswedb at gmail.com> wrote:
>
>> As Mark says the tubes have a very finite life. So like him I turn mine on
>> as needed and every 6 months. My tube is on absolute fumes and is very very
>> marginal. But it still locks on its own in something like 16 hours with
>> almost impossible to see beam current.
>> So if you follow the every 6 months then indeed that CS will last a long
>> time.
>> Plus no power consumption and heat generation. How green is that?
>> Now some might say whats the value of the CS if its not your main
>> reference?
>> It helps resolve ambiguity between to GPSDOs as an example. Which ones
>> moving around more. Its great for checking your RB offsets etc.
>> Few people need the CS on all the time. The other funny thing on the HP
>> series you can turn the tube off and just use the OCXO after its been
>> adjusted accurately.
>> I run my HP 5065a Rb the same way. Power as needed and every 6 months.
>> So you are very lucky to have a good CS.
>> Regards
>> Paul.
>> WB8TSL
>>
>> On Thu, Jul 9, 2015 at 6:07 PM, Don Latham <djl at montana.com> wrote:
>>
>>> I lucked out on a very squeaky clean FTS 4060 CS standard. Started up
>> right
>>> away and appears to have a strong tube.
>>> My question for those in the know:
>>> I don't appeal to the standard very often.
>>> Should I leave it on all the time, on a UPS, or start it up when I need
>> it?
>>> I'm 76. If I leave it on, will it last as long as I need it :-)?
>>> Thanks and howdy,
>>> Don
>>>
>>>
>>>
>>> --
>>> "Noli sinere nothos te opprimere"
>>>
>>> Dr. Don Latham AJ7LL
>>> Six Mile Systems LLC
>>> 17850 Six Mile Road
>>> Huson, MT, 59846
>>>
>>> mail:  POBox 404
>>> Frenchtown MT 59834-0404
>>>
>>> VOX 406-626-4304
>>> CEL 406-241-5093
>>> Skype: buffler2
>>> www.lightningforensics.com
>>> www.sixmilesystems.com
>>>
>>>
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