Products > Test Equipment
REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol
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marmad:

--- Quote from: Wim13 on July 13, 2013, 04:53:39 pm ---But with that extra space it cannot connect. maybe you can remove spaces.

--- End quote ---

Ahhh... got it. I thought you wrote 'is' instead of 'if'.  ;)
Wim13:
See pictures,  ALIAS OFF on FFT, it is totaly useless

The picture with alias ON, that is  how it looks on a spectrum analyser...

also added 3 kc picture, you can see that the other spikes are below the
level , as on alias off. Thats why they are not visible on alias off

For comparision, added a 3kc from an analog signal generatior
Wim13:
@ Teneyes,   dont use rectangle, use a window, as Hanning or Blackman
Teneyes:

--- Quote from: Wim13 on July 13, 2013, 06:58:07 pm ---@ Teneyes,   dont use rectangle, use a window, as Hanning or Blackman

--- End quote ---
@Wim  Thanks Wim , that is Wonderful
Pics
Better FFT of 3KHZ

and 3K with FM modulated with 50 Hz

Hoping Rigol changes FW so Center frequency stays at Center, for Aliasing Also
Wim13:

If you want more info on FFT and windowing...

http://www.ni.com/white-paper/4844/en/
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