Products > Test Equipment
REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol
Wim13:
i did a test on a DS1000z where you can turn off and on Sin(x)/x
that makes a lot...lot off difference. ( temp a DS1000z for test ).
But why was it then on FW version 01 of the DS2000 better, what did they change..?
(pictures below are from the DS1000z, for the DS2000 see some posts back )
Sparky:
--- Quote from: Wim13 on April 14, 2014, 06:03:43 pm ---i did a test on a DS1000z where you can turn off and on Sin(x)/x
that makes a lot...lot off difference. ( temp a DS1000z for test ).
--- End quote ---
Whoa! The amplitude change --- how could sin(x)/x interpolation change the amplitude like that?
--- Quote ---But why was it then on FW version 01 of the DS2000 better, what did they change..?
--- End quote ---
Whatever they did, it is unfortunate... I will hope they find it as a bug and change it back.
Teneyes:
The External Frequency Counter.
I just realized the FW 00.03 allows the 'Ext Trig' input to be used as a Counter,
Some measurements:
Selectable from the Counter menu
Range = 15hz - 52MHz
Resolution = 6 digits
Sense = 280 mVpp
Note: The counter had a Flashing display for several minutes before it started working, (a Self Calibration on first use maybe???)
Galaxyrise:
--- Quote from: Wim13 on April 14, 2014, 06:03:43 pm ---i did a test on a DS1000z where you can turn off and on Sin(x)/x
that makes a lot...lot off difference. ( temp a DS1000z for test ).
--- End quote ---
Fifteen sample points per waveform, goodness! There's hardly any real data there, it's almost all interpolated. I wonder what interpolation it's using when you turn sin(x)/x off; it doesn't look like 15 straight line segments to me, and it's certainly not 15 points.
Wim13:
--- Quote from: Teneyes on April 14, 2014, 07:45:26 pm ---
--- Quote from: Wim13 on April 13, 2014, 03:53:31 pm ---Implementation of FFT, differenses between DS2000 and DS1000z, most
things works the same on these two DSO.
But on the DS1000z the FFT is more user friendly, even better as on the DS2000
--- End quote ---
@Wim
Good to see Wim, I hope those features will go into the DS2000 Firmware someday
On the DS1000;
Can you please check what happens when you push the Multifunction knob when selecting the FFT vertical offset & Vertical Scale,
On the DS2000 with Vrms , pushing knob set 0 Vrms to the middle of the scale , Useless
What is a negative Volt on an FFT display???
Thanks
--- End quote ---
That is the same on the DS2000 and the DS1000z,
i also see no use for negative voltage for a FFT display in Volt mode, that works with AC voltages.
But it is only the scale that has a negative voltage, not the signal.
On the DS2000 the FFT controls depends lot on the timebase, you have to
change the timebase first to change the FFT range.
On the DS1000z it is different, if you change the timebase, the FFT follows.
thats is more user friendly.
The more i look at the DS1000Z the more i like it.
The DS2000 is better in performance and faster, but the DS1000z UI has
learned from the DS2000 and is enhanced.
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