I considered the same question a couple years ago and went with a 2440
because the Rigol lacks peak detection. They have envelope detection
which they call peak detection but that is not the same.
I could make good use of variable persistence in a DSO which the 2440
lacks but I can use my 7834 for that.
toggle quoted message
Show quoted text
On Tue, 24 Jul 2012 02:42:38 -0000, "ducoar" <ducoar@...> wrote:
The first step in getting help is to admit you have a problem. I have multiple scope disorder. There I said it. As I write this, there are at least ten Tek scopes around me fighting for space. (I don't count the Tenma 72-330, which has been banished to the garage, but I digress) Receiving the TekScopes daily digest probably just compounds the problem ;-) but I am having fun.
About 3 or 4 years ago I renewed my interest in electronics, which grew into the desire to add "a scope" to the bench. After some success in (no small thanks to the experts here) repairing a 2236 and a 2445, my analog 'collection' grew to include another 2445, a 2467b, and 3 2465s(2 of these still need repair). I tell myself, "you know, U800s are rare so it's not a bad thing I have so many scopes around." :-) My actual plan is to end keep the 2467B, and add 2445B & 2465B. So for analog I have a plan.
The digital side, is still pretty new to me. My first digital scope was a 2430A, which only required a good cleaning and re-seating of some connections to bring it back to life. I really liked the ability to save a waveform with the 2430A. However the Rigol's ability to save directly to USB vs. the challenge of GPIB for the 2430A won out, and a Rigol 1102E was added to the collection. I also have a 2440 that still needs some tweaking (intensity control circuit).
Comparing digital scope specs isn't clear cut for me (yet), so my question is (and I hope it's not a silly one) do I gain anything by keeping the 2430A or the 2440 along with the Rigol?
On the surface the 2430A (150MHz) and the 2440 (300MHz) should stomp the Rigol's 100Mhz, but I'm told Rigol's sample rate & memory is the real measure. However being the Tektronix junkie that I am (You'll get my 2467B when you pry it out of cold dead hands) tells me not to dismiss the 2430A/2440 yet... or at least without asking here first!
David Hess