Products > Test Equipment

REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol

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TP:

--- Quote from: egonotto on May 18, 2013, 12:22:45 am ---I like the hires modus. But the 400 pixels are not enough to display all the 12 bits. Is there a vertical zoom? How can one get  full benefit from the hires modus?

Thanks in advance
egonotto

--- End quote ---

Yes.  If you stop the acquisition then just use the V/div knob to expand the trace the extra resolution of the Hires mode shows up.  Some screen shots I posted near the beginning of this thread shows this.

EV:

--- Quote from: Teneyes on May 18, 2013, 07:55:18 pm ---Have you tried feeding back the "Trigger out" fast pulse to test?

--- End quote ---

Use 50 ohm feedthru terminator with BNC cable!

egonotto:
Hi,


@TP: Thanks for the hint. But you can not go below 500uV. I think here is yet a improvement  in the firmware possible. I will try this with the sample data on PC.

@Teneyes: I have compare the Trigger out with BNC and 50 Ohm termination of the DS2072.
First with the DS2072 . There I got 3ns rise time.
Second with the PM3392A (a 200MHz scope). There I got 2ns rise time.

A 70 MHz scope has from popular opinion 5ns rise time.

So I think the bandwidth of my DS2072 is circa 120 MHz

I will try to compare the bandwidth of the two scopes with a grid dip meter.
 

Best Regards
egonotto

EV:
Here are rise times of my DS2202 measured from trig out and risemime tester MK2 signal.

EV:

--- Quote from: EV on May 19, 2013, 08:55:42 am ---Here are rise times of my DS2202 measured from trig out and risemime tester MK2 signal.

--- End quote ---

Trig out is connected with 50 cm RG174 cable. So the rise time (1.52 ns) could be faster with a shorter cable. Rise time tester MK2 is connected without any cable to the terminator and it is connected directly to CH1 BNC input. Rise time is 1.32 ns.

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