Products > Test Equipment
Another radio amateur about to buy a DSO ...
RoGeorge:
--- Quote from: Mike99 on November 11, 2023, 02:50:47 pm ---Rigol DHO812 (I don't need 4 channels for what I do) but it's only 100MHz
--- End quote ---
DHO900 goes up to 250MHz, but I don't have it so no idea how it is.
https://www.rigolna.com/products/rigol-digital-oscilloscopes/dho900/
Mike99:
--- Quote from: RoGeorge on November 11, 2023, 03:11:34 pm ---
--- Quote from: Mike99 on November 11, 2023, 02:50:47 pm ---Rigol DHO812 (I don't need 4 channels for what I do) but it's only 100MHz
--- End quote ---
DHO900 goes up to 250MHz, but I don't have it so no idea how it is.
https://www.rigolna.com/products/rigol-digital-oscilloscopes/dho900/
--- End quote ---
It's too expensive for me (£740).
Mike
Fungus:
--- Quote from: Mike99 on November 11, 2023, 02:50:47 pm ---As for budget, ideally no more than £500 so I could afford the Rigol DHO812 (I don't need 4 channels for what I do) but it's only 100MHz bw and I don't like the front panel layout. At a push I could go for the Siglent SDS2202X-E.
--- End quote ---
That's what it says on the front but real-life measurements show it's much higher.
A lot of people here have bought the 70MHz model and unlocked it to 100Mhz with a license key generator. Measured bandwidth on the unlocked 'scopes is 200MHz (I've measured mine, several other people have measured theirs and got this result).
eg. Here's Martin72 measuring (via rise time) 125Mhz bandwidth on a "70Mhz" model and 200MHz bandwidth on a "100MHz" model.
https://www.eevblog.com/forum/testgear/split-from-rigols-new-dho800-oscilloscope-unbox-amp-teardown/msg5156580/#msg5156580
Why is Rigol underselling the DHO800? We don't know. We only know it's a marketing decision.
Mike99:
Yes I know these can be hacked but I would be reluctant to try until it's out of warranty.
Mike
ebastler:
--- Quote from: G0HZU on November 11, 2023, 02:19:45 pm ---Take a look inside a Rigol 5000 series scope. There's a front end relay to select to the 50R path (and the 50R path looks to have a relay controlled attenuator) but the main 1Meg path is all done using a series of tapped resistors
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I don't think the MSO5000 has an internal 50 Ohm input path at all. Are we thinking of the same scope here?
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