Products > Test Equipment
Rigol HDO1000 and HDO4000 12bit oscilloscopes launched in China
Martin72:
--- Quote ---I will do the two-tone test earlier.
--- End quote ---
Couldn“t wait... ;)
Two-tone 10 and 11khz, 1vpp.
Rigol settings as it could get, siglent settings "decreasing" to the rigol settings for better comparison.
Be aware that the pics will be shuffled.EDIT : I hate this!!! >:(
Next post will be siglent only with "all in", means FFT average mode and 2Mpoints.
tautech:
--- Quote from: Martin72 on February 13, 2023, 08:29:56 pm ---Be aware that the pics will be shuffled.
--- End quote ---
BTW, meant to tell you to skip the first attachment and never use it then attachments will always retain their uploaded order.
Martin72:
Siglent with FFt avg 8 and 2Mpoints, Memory Auto..
@Rob: Ah, thanks, it works!
mawyatt:
Martin72,
Thanks :-+
The Rigol does look good, and appears to have better linearity under these conditions!!
So one can infer with this one test case that maybe they've done a good job with the input, and ADC designs, so this is encouraging!
Now if they can get their act together and get the firmware up to snuff, AND if the lower cost HD performs as well which remains to be seen, then this new HD deserves some serious consideration, especially at the intro price point!!
Anyway, thanks for the testing!! BTW if you want to run some additional tests at say 100K & 1MHz or whatever frequencies you like we won't complain ;D
Best,
gf:
--- Quote from: TomKatt on February 13, 2023, 07:33:52 pm ---According to this Agilent brief, sinx(x)/x can create an identical waveform as seen by the input...
--- End quote ---
Only if the input signal sampled by the ADC was a priori band-limited.
Furthermore, perfect reconstruction assumes an ideal sinx(x)/x interpolation kernel, which has an infinite extent (in practice it needs to be truncated to a finite length, though).
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