| Products > Test Equipment |
| Sniffing the Rigol's internal I2C bus |
| << < (419/899) > >> |
| NikWing:
btw, what's the current state of A-model reversing? ^^ |
| Pehtoori:
--- Quote from: NikWing on December 23, 2013, 12:12:53 pm ---btw, what's the current state of A-model reversing? ^^ --- End quote --- Waiting for JTAG dump... |
| NikWing:
so barnacle2k disappeared? ^^; |
| marmad:
--- Quote from: A Hellene on December 23, 2013, 09:37:37 am ---What I said before is that, in order to minimise the development/manufacturing costs, the manufacturer designed one only device and sells it in three or four bandwidth levels. Of course, I am sure that the top-notch 300 MHz models are being tested thoroughly before they get labeled as such; all the rest of devices at the assembly line are being branded depending on the market demands of the time they hit the market. This way, a 72 MHz device can perform decently at higher bandwidths (if hacked, of course). BUT: At the link in my previous message, the member Alex33 measured a bandwidth of 90 MHz on a 50 MHz device, a DS1052: That would be no problem for a device sold as a 50 MHz bandwidth one; but that limited bandwidth of 90 MHz of that specific device would restrict that very device to be sold as a DS1102 or a DS1152 of 100 or 150 MHz, respectively. --- End quote --- --- Quote from: Pehtoori on December 23, 2013, 12:03:12 pm ---Yes for components and design, but will all DS2072 work as DS2302? There is no guarantee as they might not be tested for 300MHz. What I see "A Hellene" is trying to say. There might be defective soldering, PCB or component and Rigol has noticed this in testing and labelled device as DS2072 if it meets DS2072 specifications. I'm or "A Hellene" is not saying, that this is the case, but its clearly possibility. --- End quote --- @George & Pehtoori : But you can't compare the DS2000 series with the old DS1000 series. With the DS2000 series, Rigol has ALWAYS had the intention of selling software bandwidth upgrades for the models. This is evidenced by the fact that Drieg (a Rigol dealer) mentioned that Rigol was planning to do this back in October of 2012, and also by the fact that with the FW release 01.00.00.03 (IIRC), the software bandwidth upgrades were functionally operative. As we all know, labor is cheap in China - so with their original intentions plus cheap labor, I can't imagine that all of the DSOs in the series don't go through the exact same testing procedures/standards. Now why Rigol hasn't actually started selling the bandwidth upgrades is another, perhaps more interesting, question. I suspect it has to do with the relative lack of competition at the DS2000's price point - although perhaps this will change with the full-scale release of the Siglent SDS2000 series in the near future. |
| JLM:
After upgrade, my options list shows both "200 MHz bandwidth" and "300 mhz bandwidth". Is that normal? Can I and should I delete the 200, and if so, how? |
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