Products > Test Equipment

Rigol DHO804 Test and Compare Thread

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Martin72:
Working with the DS1054Z is like traveling backwards in time. ;)
I hadn't noticed this before, but now, with the DHO804 in direct comparison, I have to say:
Farewell and thank you for once arousing my interest in a private scope and fulfilling my wish to own one.
But your time is simply up, no one should buy you anymore, given the DHO800.
A small example of how it could not be more drastic.
50mV/div, then stop, then enlarged to 20mv/div.
As I said, time's up.

Randy222:
Sorry if I missed it, what is the -3db of the 804 when brought up to 814 100MHz level? Is it near 185MHz?

Also, if ch1 triggers from ch4, can you still get full 1.25Gsa/s on ch1 ?

Martin72:
Hi Randy,

Measured -3dB point lies on 200Mhz.


--- Quote ---Also, if ch1 triggers from ch4, can you still get full 1.25Gsa/s on ch1 ?
--- End quote ---

Just tested it - samplerate will be then reduced to half although only one channel is active..

Fungus:

--- Quote from: Randy222 on November 29, 2023, 07:14:29 pm ---Sorry if I missed it, what is the -3db of the 804 when brought up to 814 100MHz level? Is it near 185MHz?

--- End quote ---

It's exactly 199Mhz.


--- Quote from: Randy222 on November 29, 2023, 07:14:29 pm ---Also, if ch1 triggers from ch4, can you still get full 1.25Gsa/s on ch1 ?

--- End quote ---

No.

tautech:

--- Quote from: Fungus on November 16, 2023, 01:28:02 am ---I'm still waiting for an explanation of the Siglent's FFT problems shown in Dave's review of the DHO800...

--- End quote ---
It has been revealed Dave can't drive FFT properly.
https://www.eevblog.com/forum/testgear/siglent-sds1104x-e-in-depth-review/msg5195079/#msg5195079

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