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| Rigol HDO1000 and HDO4000 12bit oscilloscopes launched in China |
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| thm_w:
--- Quote from: voltsandjolts on December 19, 2023, 12:07:18 pm ---The DC accuracy of all 4 channels is within the 2% specification. However, at low frequencies CH1 reads about 4% lower than other channels. For example, with all probes x1 connected to scope comp output, hit Default then AUTO. All 4 traces overlay perfectly. Switch to x10, hit AUTO. CH1 very obviously different, showing 4% lower amplitude than other channel traces (with probes on x10 the input channel relays have switched to the lower input range). Do your traces overlay perfectly in that setup? --- End quote --- On 1x everything perfectly overlaid, then on 10x, my CH4 is the only one visibly off, by about 2% or so. Used 32x average to make it more obvious. --- Quote from: ebastler on December 19, 2023, 12:49:32 pm ---I found a "Performance Verification Manual", by the way -- only by chance, and only on the ManualsLib site; could not spot it on any Rigol site. Mildly interesting, I'd say: https://www.manualslib.com/manual/3029727/Rigol-Dho1000-Series.html#manual --- End quote --- Funny, as the calibration test sheet I posted only used some relatively basic rigol gear (DM3068, DG1000Z and DSG830), whereas this performance verification is using high end Fluke gear. |
| Noy:
Sorry double post with DHO800 thread.. I'm in trouble.. Should i get a DH804 (hacked) or a DHO1074 mated to my MSO5354? I know there is the discount for the DHO1074 currently, but still then it is nearly 1/3 more on top.. And my desk is space limited.. The size of the DHO804 is really nice / fitable .. And i think it is enough for a MSO5k addition..? I only need / would like to have it for power supply checking / using with my current clamps.. The stuff where 12bit are nice (but do i really need it ?? )... For my main work (mostly digital stuff) i like the >350MHz BW / 8GS. |
| ebastler:
--- Quote from: Noy on December 20, 2023, 08:41:39 am ---Sorry double post with DHO800 thread.. I'm in trouble.. --- End quote --- To make sure you don't get into more trouble, please don't double-post. ;) Your question has already received several answers in the other thread, so let's continue the discussion there (only). |
| core:
--- Quote from: Noy on December 20, 2023, 08:41:39 am ---Sorry double post with DHO800 thread.. I'm in trouble.. Should i get a DH804 (hacked) or a DHO1074 mated to my MSO5354? I know there is the discount for the DHO1074 currently, but still then it is nearly 1/3 more on top.. And my desk is space limited.. The size of the DHO804 is really nice / fitable .. And i think it is enough for a MSO5k addition..? I only need / would like to have it for power supply checking / using with my current clamps.. The stuff where 12bit are nice (but do i really need it ?? )... For my main work (mostly digital stuff) i like the >350MHz BW / 8GS. --- End quote --- I have both DHO1074 and MSO5000. What advantages would a DHO (800 or 1000) have over the MSO: - DHO interface is better designed for touch screen, also multiple windows looks much better when you want to see multiple math functions simultaneously. See the posts above. - the input noise is much lower, and for checking the noise of power supplies it is a much better option. Below 20mV/div can't even be compared. - power consumption is much lower, but fan noise is comparable. The DHO1000 is even noisier than the MSO. Otherwise the DHO does not make much difference compared to the MSO. It just complements it with the above. Same advanced features, no noticeable improvements. The differences between DHO800 and DHO1000 are mainly related to size, available memory, sampling rate, and somewhat computing power. The software is pretty much the same. If you can afford it, the current price offer for the DHO1000 is unbeatable. Otherwise, or if you really want it to take up as little space on your desk as possible, you'll be fine with the DHO800. You will not really need it if MSO it's already fine for you, but it's nice to have one :-DD |
| Noy:
Thanks for this answer.. Hmm i think there is no advantage above my very old Hameg HMO3524.. It has a noise of around 60-70µV RMS which is less than half of the MSO5k 150µV.. both with open channels and 1ms / 1mV And i think near to a DHO800? And the Hameg has 50Ohm internal with 350MHz.. So only 12bit are left as "advantage".. PS: I don't like touch :-D i prefer single knobs for every channel that was one thing why i choose MSO5K above the Siglent.. |
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