[time-nuts] HP 8566A, 8568B and 3585A Noise floor.
Bob Camp
lists at rtty.us
Thu Jul 4 11:46:34 EDT 2013
Hi
You really need to know a few things about the Rigol spec:
1) Is it simply a noise measure? If so, at what bandwidth and frequency (narrow will always be lower)?
2) Is it a signal spec? If so with what signal level and settings? Does it include / exclude IMD / harmonics?
3) Is it the spec on the number of screen divisions? (yes, I *have* seen that one)
4) Is it the just spec on the SFDR of the ADC? (assuming it's an ADC -> FFT beast)
Without some qualifiers, the big print spectrum analyzer spec's don't mean a whole lot….
Bob
On Jul 4, 2013, at 3:56 AM, Mark C. Stephens <marks at non-stop.com.au> wrote:
> I just had a discussion about older spectrum analyser versus the new Rigol type SA.
>
> They are saying the Rigol is -80dBc.
>
> Unfortunately I don't know what the specs of mine are.
> Could someone help me out with some noise floor figures for the following?
>
>
> * HP 8566A
>
> * HP 8568B
>
> * HP 3585A
>
> Many thanks,
> -marki
>
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