Here is the noise spectrum using 250Msample files and assuming 10 div full scale. Looks very clean up to 200 MHz!
On 1 V/div (10V full scale) the white noise level is 240 nV/Hz^(1/2), I think that corresponds to almost 10 ENOB.
It looks like it has a different amplifier path for 50 Ohm, giving lower noise at low frequency.
The ffts and plots are made with Matlab.
EDIT:
Actually, to be sure, was the scope input grounded externally when on 1 MOhm setting, Dave? Because it gives std=48 uV, instead of 19 uV. I think you mentioned in the video it does not make a difference when using on-screen rms measurements.
1M tests used an open input. If I used an external 50ohm termination then that's effectively the same as the 50 ohm mode, unless there is actually different paths for the 50ohm and 1M input which is usually not the case for scopes.
...I think that corresponds to almost 10 ENOB.
...I think that corresponds to almost 10 ENOB.It's certainly looking like Rigol has delivered the goods this time.
Batronix have now listed the HDO4000:
Well, this is actually wrong, ENOB equations always mess me up! Full range 10Vpp sine wave has only 3.5V rms, so SNR=20*log(3.5/0.009)=52 dB. So ENOB=(52-1.76)/6.02=8.3 bits.
Hello,
Maybe we can make a noise comparison between Rigol and Siglent 12 bit scope.
somebody will figure out how to hack the SDS2104X HD
In my opinion the SDS2104X HD from Siglent is better choice than the HDO4204 and it's worth the $581 extra.
In my opinion it´s too early to say which is the better choice.
Nevertheless, what I saw on Daves video doesn´t make weeping in the cushion.
somebody will figure out how to hack the SDS2104X HD
You mean the HDO4204, right?
In my opinion the SDS2104X HD from Siglent is better choice than the HDO4204 and it's worth the $581 extra.
In my opinion it´s too early to say which is the better choice.
Nevertheless, what I saw on Daves video doesn´t make weeping in the cushion.
I very much welcome the fact that there is now a second affordable 12-bit scope, which will be a nice head-to-head race that will spur both to peak performance, for the favor of customers what features and polished software concerns.
The HDO4000 doesn’t have bode plot option, nor sin(x)/x
somebody will figure out how to hack the SDS2104X HD
You mean the HDO4204, right?
No, I meant the Siglent…
Did anybody liberate the SDS2104X HD already?
It's got Sinx/x, but you can't turn it off.
Hello,
Maybe we can make a noise comparison between Rigol and Siglent 12 bit scope.
I got a 12bit siglent...
They were several settings mentioned on the side before, which settings should I use for compare?
It's got Sinx/x, but you can't turn it off.
Turning it off would produce a mathematically incorrect display.
It's got Sinx/x, but you can't turn it off.
Turning it off would produce a mathematically incorrect display.A mathematically incorrect display is one where the claimed maths is not correctly implemented.
The HDO4000 doesn’t have bode plot option, nor sin(x)/x
It's got Sinx/x, but you can't turn it off.