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| Rohde & Schwarz Oscilloscopes - Questions/Comments? Let me know! |
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| Rich@RohdeScopesUSA:
--- Quote from: fonograph on October 24, 2017, 07:51:53 pm ---I am interested in other things too,but the thing is,if its in datasheets,then I can look that up myself without bothering you,but these filter details arent in datasheet.So if there is any significant differences then tell me,I am especialy interested on things that arent in datasheet.For example the new RTO might have faster cpu and run faster,or new fft asic or something and if its not mentioned in datasheet I would never know. --- End quote --- Got it - let me see what I can find out. :-+ -Rich |
| Rich@RohdeScopesUSA:
--- Quote from: nctnico on October 24, 2017, 11:32:51 pm --- --- Quote from: rhb on October 24, 2017, 11:07:48 pm ---As I read the user manual, the RTB2004 will do an FFT for the entire record for the length currently set which would be 20 Mpts for two channels from different groups or 10 Mpts for 4 channels. Is that correct? --- End quote --- Nope. The same datasheet says 128kpts max. --- End quote --- Correct. -Rich |
| Rich@RohdeScopesUSA:
--- Quote from: casinada on October 24, 2017, 11:53:25 pm ---New firmware was promised for October. May be Rich can give us an update. :) --- End quote --- Should be out shortly! If not this week, next. -Rich |
| mike_b_:
Hi Rich, First of all, thank you for spending time answering so many questions. I received my new RTB2004 a few weeks ago and I think it's really amazing. I did notice an oddity though that I wanted to ask about. I'm noticing that on certain signals at certain timesteps, the rendered waveform appears to dramatically change -- please see the attached images. In this case, at 1.9ms the signal is as it should be, but at 2ms it changes dramatically. I tested it further by manually entering in time steps, and I can get really close to the 2ms point with the correct result still produced -- 1.999ms and 2.001ms both produce the correct waveform, for instance. Do you have any idea what's going on here? Apologies if I'm making an obvious mistake -- I haven't used scopes as sophisticated as this before. It appears to be purely a rendering issue, rather than an aquisition issue -- if I one-shot the trigger, the artifact still appears at 2ms, but disappears when paused if I change the time step. It also disappears if I mess around with the memory depth. Anyway sorry for the rambling question. Apart from this weird issue I'm having a great time with the scope! |
| Rich@RohdeScopesUSA:
--- Quote from: mike_b_ on October 25, 2017, 06:18:18 am ---Hi Rich, First of all, thank you for spending time answering so many questions. I received my new RTB2004 a few weeks ago and I think it's really amazing. I did notice an oddity though that I wanted to ask about. I'm noticing that on certain signals at certain timesteps, the rendered waveform appears to dramatically change -- please see the attached images. In this case, at 1.9ms the signal is as it should be, but at 2ms it changes dramatically. I tested it further by manually entering in time steps, and I can get really close to the 2ms point with the correct result still produced -- 1.999ms and 2.001ms both produce the correct waveform, for instance. Do you have any idea what's going on here? Apologies if I'm making an obvious mistake -- I haven't used scopes as sophisticated as this before. It appears to be purely a rendering issue, rather than an aquisition issue -- if I one-shot the trigger, the artifact still appears at 2ms, but disappears when paused if I change the time step. It also disappears if I mess around with the memory depth. Anyway sorry for the rambling question. Apart from this weird issue I'm having a great time with the scope! --- End quote --- Hi mike_b - first, congrats on the new scope! Second, I believe the issue you are describing is a known bug that is fixed in the upcoming release. Please let me know if you still see it after the update (should be out later this week or next). -Rich |
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