HP/Agilent 54111D DSO有什么优势

大家好！
请原谅入侵。
我为自己的无知道歉。
我可以看到这里有一群知识渊博的人。
我需要回答一些关于DSO的问题。
我拥有一台25年历史的Agilent 54111D DSO。
这是野兽！
我看到可用的新示波器似乎以较低的价格超越了这个示波器功能。
有几件我不明白的事情。
有2个GS / s示波器，带宽为200 Mhz。
这是10：1的比例。
这有意义吗？
这不是矫枉过正吗？
我认为超出4：1的任何东西，就像我的范围一样，价值可以忽略不计。
那么4：1过采样是否能够弥补性能不足的硬件呢？
此外，我的示波器具有6位（8位有效，50 Mhz）垂直分辨率。
目前有一些示波器可提供8位分辨率和高达12位的有效分辨率。
我的范围是否足够？
我将把它用于嵌入式软件开发和音频放大器实现。
我注意到纸上的（Rigol）示波器似乎超出了我的示波器的性能，并带有许多附加功能。
除了带宽差异之外，DS1202CA与我的范围之间有什么区别（Rogil）？
准确性？
例如S / N？
只是功能集？
我是不是通过不使用廉价的东西（如Rigol）做出了糟糕的购买决定？
也许我需要保存一个具有相同功能的* Agilent *示波器？
这听起来对我很有吸引力。
但是，您认为必要的性能参数会有什么不同？
顺便说一句，我的船确实需要一个新锚。
;-） 谢谢！
Bob Graham编辑：tucson于2014年4月1日上午12:59



     以下为原文

  Hello all!

Please forgive the intrusion. I apologize for my ignorance. I can see there is a very knowledgeable group of people here. I need a few questions answered about DSOs.  

I have in my possession a 25 year old Agilent 54111D DSO. This is a beast! I see the new scopes available seem to surpass this scopes capabilities at a small price. There are a couple things I do not understand. There are 2 GS/s scopes with a bandwidth of 200 Mhz. This is a ratio of 10:1. Does this make sense? Isn't this overkill? I think anything beyond 4:1, like my scope, would have negligible value.  So does greater that 4:1 oversampling make up for hardware that has inadequate performance?

Also my scope has 6-bit (8-bit effective at 50 Mhz) vertical resolution.  There are scopes nowadays that provide 8-bit resolution and an effective resolution of up to 12-bits. Is my scope still adequate? I will be using it for embedded software development and audio amplifier implementations.

I notice there are (Rigol) scopes that on paper appear to exceed the performance of my scope and come with many additional features. What would the difference be between that (Rogil) scope, lets say the DS1202CA,  and my scope aside from the differences in bandwidth? The accuracy? The S/N for instance? Just the feature set?

Did I make a bad purchasing decision by not going with something inexpensive scope (like the Rigol)? Perhaps I need to save up for a good *Agilent* scope with the same features? This sounds attractive to me. But what would the differences be in what you would consider essential performance parameters?

BTW my boat does need a new anchor. ;-)

Thanks!

Bob Graham

Edited by: tucson on Apr 1, 2014 12:59 AM