[time-nuts] GHz output from fe5680a

Magnus Danielson magnus at rubidium.dyndns.org
Mon Jan 30 20:52:23 EST 2012


On 31/01/12 02:20, Bob Camp wrote:
> Hi
>
> Simple answer is don't bother.
>
> More complex answer - of course you can. You will get a forest of spikes (every 5, MHz or so ).

Also, since the 5,3 MHz is modulated, 1,4 kHz apart is the two signals, 
and then a skirt of side-bands as the frequency modulation is relatively 
quick.

It's not clean.

BTW. A fun hack would be to hook up the 63,8976 MHz OCXO in replacement 
of the 60 MHz and then re-adjusting the DDS to 2.35645 MHz, as the 107s 
overtone of the OCXO minus the new DDS frequency hits the Rb resonance.

Cheers,
Magnus




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