[time-nuts] Cheap 9.8Mhz Sa.22c's

Don Latham djl at montana.com
Sun Jun 2 15:20:58 EDT 2013


The manual at least hints that you will get 1 pps out no matter which
MHz signal is generated, although I find the presence of  1 pps out and
1 pps in signals a bit confusing...
Doon

Chris Albertson
> What are you planning to do with the 10MHz signal.   In some cases you
> can
> simply use 9.8304MHz.  For example my plan to drive a DDS chip.
> Nominally
> the DDS wants 125MHz but iif I put in some odd-ball thing like 119.6MHZ
> all
> that means is I have to change the binary word I load into the DDS chip.
>
> In fact that could work.  Use the 9.8305 to drie a DDS then have the DDS
> synthesize what you really want.  It will be as stable as the Rb. but as
> accurate as 1/2 the step size of the DDS.
>
>
> On Sun, Jun 2, 2013 at 10:52 AM, Mark C. Stephens
> <marks at non-stop.com.au>wrote:
>
>> These are 9.8304Mhz, is possible to move them to 10Mhz?
>>
>>
>> http://www.ebay.com/itm/Symmetricom-SA-22c-9-8304MHz-Precision-Rubidium-Oscillator-5V-and-15V-NICE-/261223397404
>>
>> --
>>
>
> Chris Albertson
> Redondo Beach, California
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-- 
"Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind."
De Erroribus Medicorum, R. Bacon, 13th century.
"If you don't know what it is, don't poke it."
Ghost in the Shell


Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
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