[time-nuts] X72 Rb units, any experience ?

[Magnus Danielson]

On 22/08/11 23:58, Bob Camp wrote:
> Hi
>
> The X72 may run a DDS to do it's output.

It's the output of a programable divider.

http://www.symmetricom.com/media/files/support/productmanual/097-10603-01_Rev_A.pdf

See page 37.

Cheers,
Magnus

> Bob
>
> On Aug 22, 2011, at 4:18 PM, Magnus Danielson wrote:
>
>> On 22/08/11 22:07, Poul-Henning Kamp wrote:
>>> In message<BLU125-W414D2DF78A487E3AFF8ADCE2F0 at phx.gbl>, Mark Sims writes:
>>>>
>>>> I have a couple of the horrid little beasties...  the sine wave
>>>> output is really nasty.
>>>
>>> Nasty in what way ?  Noise ?
>>
>> Reminds me. Friends of mine had problem with a new rubidium. They had more jitter than the phase-noise motivated. It prooved to be the 100 MHz pumping of the rubidium lamp that broke through, which was obvious when scoping the signal. It wasn't a X72, but it was a small rubidium.
>>
>> Cheers,
>> Magnus
>>
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