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New Rigol DS7000

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iMo:
Improving the speed of the fancy math and the analyses functions (including the UI responses) of an oscope is great, the only issue I see is the rule which still works in our today's digital world:

--- Quote ---Sh.t in, sh.t out..
--- End quote ---
With 8bit input you get 8bit output. Any advanced math co-processor or any fastest ASIC cannot change that..

bugi:

--- Quote from: imo on June 24, 2018, 11:03:10 am ---Improving the speed of the fancy math and the analyses functions (including the UI responses) of an oscope is great, the only issue I see is the rule which still works in our today's digital world:

--- Quote ---Sh.t in, sh.t out..
--- End quote ---
With 8bit input you get 8bit output. Any advanced math co-processor or any fastest ASIC cannot change that..

--- End quote ---
Depending on the particular way the 8-bit input is produced (needs to have suitable level of uncorrelated noise), the desired math done, and the bandwidth needed, yes, they can produce more bits from less input bits. Basically the samples/bandwidth/time -to- more (effective) bits -tradeoff. The first example that comes to my mind is the FFT done while ERES is enabled, giving (slightly) lower noise on the produced FFT, etc.

modernjack3:
Damn.. this new scope is really messing with my head.
I wanted to get a DS4024E with 200MHz BW but now the DS7014 seems just so attractive.
Sadly I could only afford that scope with 100MHz BW and now I am struggling really hard.

The fastest Signal I would be going to measure would be a 50MHz Clock signal - do you guys think it is worth it to still go for the DS4024E
for the higher BW or should I get a DS7014 with 100MHz BW?

I hope I asked this question at the right place...sorry if I did not.

Greetings, Jack

hendorog:

--- Quote from: modernjack3 on June 24, 2018, 07:21:49 pm ---Damn.. this new scope is really messing with my head.
I wanted to get a DS4024E with 200MHz BW but now the DS7014 seems just so attractive.
Sadly I could only afford that scope with 100MHz BW and now I am struggling really hard.

The fastest Signal I would be going to measure would be a 50MHz Clock signal - do you guys think it is worth it to still go for the DS4024E
for the higher BW or should I get a DS7014 with 100MHz BW?

I hope I asked this question at the right place...sorry if I did not.

Greetings, Jack

--- End quote ---

I have a ds4k scope and while it has served me very well I think it would be a big call to buy one now. It is quite dated and while it can grab data fast any of the new scopes beat it on the processing of that data.

I would go with the new guy.

nctnico:

--- Quote from: modernjack3 on June 24, 2018, 07:21:49 pm ---Damn.. this new scope is really messing with my head.
I wanted to get a DS4024E with 200MHz BW but now the DS7014 seems just so attractive.
Sadly I could only afford that scope with 100MHz BW and now I am struggling really hard.

The fastest Signal I would be going to measure would be a 50MHz Clock signal - do you guys think it is worth it to still go for the DS4024E
for the higher BW or should I get a DS7014 with 100MHz BW?

I hope I asked this question at the right place...sorry if I did not.

Greetings, Jack

--- End quote ---
For a 50MHz clock signal you'll need at least 200MHz to see some harmonics an have a clue about what the square wave looks like. 250 to 300MHz is even better. Still when spending this kind of money it is wise to look at other brands or even used. Read Karel's post carefully.

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