![dsview software with rigol scope dsview software with rigol scope](https://m.media-amazon.com/images/I/41EnLfqNBuL._SL500_.jpg)
I don't have one to open up, but I can't imagine trying to justify using all discretes for the input amplifier of a 500 MHz DSO when there are ICs that will do that consistently. They do all use some discretes, but that's a different matter.
![dsview software with rigol scope dsview software with rigol scope](https://www.batronix.com/images/generated/mixedsignalmodeds1000-320x234-White-min.jpg)
I very much doubt that top tier scopes use entirely discrete inputs. A cal lab evaluation would cost almost as much as a new DSO, so it's quite unlikely that anyone will ever do it unless someone like Dave does.
#DSVIEW SOFTWARE WITH RIGOL SCOPE FULL#
I've seen a lot of claims, but I've never seen even a step response, much less a full performance check. If evaluations of scope performance before and after "hacking" are so common why have I never seen one? Provide a link. I had the good fortune to get it from Amazon for less than the price of my Zybo Z7-20 dev board. It's a 70 MHz scope I bought to use for developing FOSS FW for Zynq based DSOs. I do not consider the 2072E a 100+ Mhz DSO even if the rise time indicates higher BW. There are a fair number of specs besides BW that a DSO must meet. The entire thread is quite Did you look at the step responses I linked to? The 2072E step is not very good even if the rise time indicates more than 70 MHz BW. But expecting that you can get a 100 MHz scope by buying a 50 MHz scope and "hacking" it is not realistic unless it's a scope for which the vendor sells BW upgrades as license keys.
![dsview software with rigol scope dsview software with rigol scope](https://i.ytimg.com/vi/3YLqLw_klOE/maxresdefault.jpg)
The overshoot is a consequence of marketing pushing the BW spec as high as they can get away with. R&S advocates a Gaussian step response which I agree with even though I don't own one of their scopes. Of the three, the DS1102E has the best step response in my view. You can see some comparisons here: BW is calculated using 0.35/rise time from 10% to 90% of the step. But it definitely does not meet a 200 MHz spec. It easily meets a 70 MHz BW spec and probably 100 MHz. In fact it does well over 100 MHz, but the top of the step is rather ugly. However, Leo Bodnar has an excellent little fast edge pulser for sale which will allow you to measure what you got from the factory and what you have after the "hack". I've not seen anyone demonstrate that the result actually has that bandwidth. Lots of people have "hacked" the scopes to be "100 MHz BW". They are built to sell at the lowest possible price.
#DSVIEW SOFTWARE WITH RIGOL SCOPE UPGRADE#
What do you think the chances are that all those random combinations of parts fed off reels in the pick and place machine will all combine to meet the 100 MHz spec of a DS1104Z? Do you really think that Rigol will rework all the units that don't quite meet the DS1104Z specs? If they do, why don't they sell license keys to upgrade the BW? These are NOT Keysight, Tektronix or Rohde & Schwartz instruments. If you look at Dave's teardown of the DS-1054Z you'll see that the input is entirely built of discrete components.