Products > Test Equipment
Rigol DHO800 memory depth / bandwidth upgrades and noise level!
Bob773:
It seems like nobody is talking about how the memory depth cuts back when adding channels… goes from 25Mpts single channel to 10Mpts with 2 channels, why not 12.5?… then drops to 1Mpts with 3/4 channels?!! This alone is a major deal breaker for me. I use single triggers with multiple channels very often. Anybody have insight to why this would be?
PELL:
https://www.eevblog.com/forum/testgear/hacking-the-rigol-dho800900-scope/msg5148330/#msg5148330
follow this guide hack the mem-depth, then you can get 10M at 4 channels
I tested it under firmware 1.01 and it works to me ;)
Fungus:
--- Quote from: Bob773 on November 06, 2023, 03:04:55 am ---It seems like nobody is talking about how the memory depth cuts back when adding channels… This alone is a major deal breaker for me.
--- End quote ---
We've all hacked ours to 50Mpts so we get 10Mpts per channel with all 4 channels on.
That's why it doesn't get much discussion - it's a non-issue! :)
All you need is an Ethernet cable...
PS: While you're doing that "upgrade" you can also change the bandwidth of a DHO804 to 200MHz (measured).
csuhi17:
Yes, but why do we lose 21M of memory on the 800 and 10M on the 900?
Fungus:
--- Quote from: csuhi17 on November 06, 2023, 09:53:38 am ---Yes, but why do we lose 21M of memory on the 800 and 10M on the 900?
--- End quote ---
All we know is that it's a marketing decision not a hardware thing.
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