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| Rigol announces "serious" scope: DS70000 |
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| moore:
Sample rate is a deal breaker for me. 1 channel at 20Gs/s ok, but it drops to 10Gs/s at 2 or more channels? No thanks. I think all of the Keysight and Tek keep full rates for two channels at least. The motorized tilt thingy seems like a 'sizzle' feature that is pretty pointless in actual useage. |
| Bud:
Jeesus, wins the "Ugliest design of the year" award :scared: |
| TurboTom:
--- Quote from: moore on February 05, 2022, 02:56:09 pm --- Sample rate is a deal breaker for me. 1 channel at 20Gs/s ok, but it drops to 10Gs/s at 2 or more channels? No thanks. I think all of the Keysight and Tek keep full rates for two channels at least. The motorized tilt thingy seems like a 'sizzle' feature that is pretty pointless in actual useage. --- End quote --- You may want to check the footnotes in the specs: Sample rate reduction works the same way as in most four-channel scopes: As long as one channel of a "Group" is active, sample rate stays at 20G. A group is channel 1+3 and 3+4. So you can have two channels sampling at 20G by using a single channel of each group. Same for the sample memory. |
| Martin72:
Infinivision 6 scopes got max 20GSa/s, which will be reduced to half when using all groups, therefore same behaviour as rigol. Tek scopes, lecroy scopes will do the same. |
| moore:
--- Quote from: TurboTom on February 05, 2022, 03:58:52 pm --- --- Quote from: moore on February 05, 2022, 02:56:09 pm --- Sample rate is a deal breaker for me. 1 channel at 20Gs/s ok, but it drops to 10Gs/s at 2 or more channels? No thanks. I think all of the Keysight and Tek keep full rates for two channels at least. The motorized tilt thingy seems like a 'sizzle' feature that is pretty pointless in actual useage. --- End quote --- You may want to check the footnotes in the specs: Sample rate reduction works the same way as in most four-channel scopes: As long as one channel of a "Group" is active, sample rate stays at 20G. A group is channel 1+3 and 3+4. So you can have two channels sampling at 20G by using a single channel of each group. Same for the sample memory. --- End quote --- Ah, OK. That is a puzzling thing for them to call "single channel mode". But I stand corrected. Martin72: yes, I am aware of how most scopes work for sample rate. None of those OEMs call using two channels at once "single channel mode". I can live with 2 channels at max rate rather than 4 or 8. |
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