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buy a better oscilloscope than the Siglent SDS1104X-E
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Fungus:

--- Quote from: uargo on August 14, 2023, 01:01:39 pm ---I am designing an antenna rotor controller and I need to reduce the noise from the power supply and the reference voltage for the ADC readings. I need a fairly accurate oscilloscope to see the noise at 600uV or less

--- End quote ---

OK, so the Rigol MSO5074 can be eliminated, you're looking at one of the 10-bit or 12-bit 'scopes for that.

The Rigol HDO is the cheapest and is also the newest tech with really fast/modern user interface.



(nb. DHO1000 has identical functions...)
nctnico:

--- Quote from: uargo on August 14, 2023, 01:00:47 pm ---I am designing an antenna rotor controller and I need to reduce the noise from the power supply and the reference voltage for the ADC readings. I need a fairly accurate oscilloscope to see the noise at 600uV or less

--- End quote ---
An oscilloscope is the wrong tool for that. You'll need a true RMS DMM with a high enough bandwidth if you want to go cheap. Otherwise you'll need some kind of pre-amplifier to visualise noise that low using an oscilloscope. Probing will also be challenging.
uargo:

--- Quote from: BillyO on August 14, 2023, 02:57:37 pm ---I first got the SDS1104X-E then bought the SDS2104X-P for improved bandwidth.

I still have both.  I have used the 10 bit mode on the SDS2104X-P and it does work well, but as mentioned limits the BW to 100MHz.

Maybe if you have more specific questions about the scope we could continue to answer them instead of just asking for a general opinion.  We all use our equipment differently because will all do different things so our "general opinion" will be heavily colored by our own specific needs and may be meaningless to you, or worse, cause you to make a bad decision.

I will make one comment with regards to sensitivity.  The SDS2104x-P's enhanced sensitivity is very nice to have, but it requires that you have a very "quiet" lab environment EMI wise.

--- End quote ---

thanks I wanted to know how the 10 bit mode of the sds2104x plus works
uargo:

--- Quote from: Fungus on August 14, 2023, 05:29:03 pm ---
--- Quote from: uargo on August 14, 2023, 01:01:39 pm ---I am designing an antenna rotor controller and I need to reduce the noise from the power supply and the reference voltage for the ADC readings. I need a fairly accurate oscilloscope to see the noise at 600uV or less

--- End quote ---

OK, so the Rigol MSO5074 can be eliminated, you're looking at one of the 10-bit or 12-bit 'scopes for that.

The Rigol HDO is the cheapest and is also the newest tech with really fast/modern user interface.



(nb. DHO1000 has identical functions...)

--- End quote ---


thanks I'll look at the rigol too but they say they still have many bugs
uargo:

--- Quote from: nctnico on August 14, 2023, 06:18:14 pm ---
--- Quote from: uargo on August 14, 2023, 01:00:47 pm ---I am designing an antenna rotor controller and I need to reduce the noise from the power supply and the reference voltage for the ADC readings. I need a fairly accurate oscilloscope to see the noise at 600uV or less

--- End quote ---
An oscilloscope is the wrong tool for that. You'll need a true RMS DMM with a high enough bandwidth if you want to go cheap. Otherwise you'll need some kind of pre-amplifier to visualise noise that low using an oscilloscope. Probing will also be challenging.

--- End quote ---

thanks for that I bought a SDM3045X It will arrive on Friday
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