| General > General Technical Chat |
| The Rigol DS1052E |
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| EEVblog:
This looks super exciting Ross, you may have cracked it! Please detail your mod as soon as you are able. Also, what does it look like with a square wave and a normal clip probe? The overshoot and undershoot is an easy way to see how the high frequency response has improved. Dave. |
| EEVblog:
--- Quote from: rossmoffett on February 13, 2010, 10:31:02 am ---Rigol makes some 300 MHz scopes too. What if the analog front end on the 100 MHz scope is bandwidth limited also, and we've got filters on both models with different values? What if our *real* bandwidth can be even higher than 100 MHz? --- End quote --- Phil Allison has measured the usable bandwidth here: http://groups.google.com.au/group/aus.electronics/browse_frm/thread/8db8df6c7f9f710/6edf366688b538db?lnk=gst&q=rigol+phil#6edf366688b538db 400MHz for a visible and viewable waveform! So there could certainly be much more to this front end than meets the eye. Dave. |
| xani:
If that was true, Rigol scope is probably best deal in history, 200Mhz (assumming 5 probes per cycle) for $400, insane... |
| rossmoffett:
I wonder if I could have permission to use someone's photographs of the analog input section? My digital camera got smashed up the last time I flew and I haven't replaced the LCD yet. I checked out a function generator from school, I wish I had checked out some 100 MHz scope probes too! It turns out that this is crucial too.. I should have known, the 50 MHz probes that come with it have their dB plots in the documentation. EDIT: FLAWED MEASUREMENT Here is what a 1 MHz square wave looks like. There are 150 MHz transients in channel two that don't show up in channel one. |
| EEVblog:
Feel free to use my internal pics. When testing with a signal generator it's best to use a good coax instead of the probe. Dave. |
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