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Rigol DHO804 Test and Compare Thread

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rpro:

--- Quote from: Martin72 on November 16, 2023, 07:17:55 pm ---Between 50ns and 500ns it remains in descending 6 digits and between 50µs and 100µs there is this dramatic drop again.

--- End quote ---
You are probably well aware of this, but in case it helps others, keep in mind that the capture rate is limited by the time it takes to display the waveform on the screen. For example at 100µs/div and 10div, the capture rate can not be any faster than 1/(1000µs) or 1000 wfms/sec; at 1ms/div it can be at most 100 wfms/sec, etc. 

Martin72:
Hi,
This hard drop down I didn´t noticed on any other scope before, including the DHO4204.

rpro:

--- Quote from: Martin72 on November 17, 2023, 01:08:48 am ---Hi,
This hard drop down I didn´t noticed on any other scope before, including the DHO4204.

--- End quote ---
However, it may be of interest to note that, whereas at 20ns/div, 42K wfms/sec captures only 0.84% of the 5M/sec max available; at 1ms/div, the 36 wfms/sec you've measured in normal mode captures 36% of the 100/sec max available...

(Also, at 50ns/div, the 1M wfms/sec you've measured covers 50% of the 2M max avail., which is very nice.)

Fungus:

--- Quote from: Martin72 on November 16, 2023, 11:47:35 pm ---I just did, it doesn't look nice, but I don't know the settings, nor are they revealed there.

--- End quote ---

Send Dave a PM.


--- Quote from: Martin72 on November 17, 2023, 01:08:48 am ---This hard drop down I didn´t noticed on any other scope before, including the DHO4204.

--- End quote ---

I recall seeing similar hings in a few videos.

I can't mathematically do 1M at all settings. There's only 50M memory and it has to capture at least a screen-width of data for each "wave". If it can do it at half a dozen different settings then that seems good enough.

core:
It seems that a Black Friday for DHO1000 will start soon :

https://www.rigol.eu/NEWS/news/58.html

with 40% discount it sounds interesting vs DHO800 ...

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