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MSO5000 Bode Plot Capability: Is it Good Enough? [Many tips about a 1st scope]
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balnazzar:

--- Quote from: nctnico on October 02, 2022, 01:14:37 pm ---
--- Quote from: balnazzar on October 02, 2022, 11:13:18 am ---
--- Quote from: nctnico on October 01, 2022, 11:16:03 pm ---No. But depending on your location, a GW Instek GDS1054B could be a good alternative to buy a decent 4 channel oscilloscope (options can be enabled for free using a key generator available on this forum). For example: https://eleshop.eu/gw-instek-gds-1054b.html

--- End quote ---

Interesting. Mh. How does it compare to the Siglent? Snappier UI?

The screen looks smaller than Siglent's, but it's still 7". Probably it's the scope body that's larger.. I'm seeing that people on this forum adapted a 8" screen, but it's far from being straightforward.

Tell me, is that Eleshop a reliable vendor? Thanks!

--- End quote ---
IMHO Eleshop is a reliable vendor. I have bought some test equipment from them (and returned one as well because it didn't meet my expectations). The firmware for the GDS1054B is mature. If you do run into a problem, the service department from GW Instek is responsive and they will fix bugs (if you happen to find one). Personally I find GW Instek's UI easier to use compared to Keysight. The key difference is that GW Instek has a horizontal and vertical row of buttons which makes navigating through the menus much easier. The seperate 'select' button prevents you from turning the rotary encoder while pressing it and selecting a different menu item than the one you wanted to select (which typically happens to me when the rotary encoder and select button are integrated in one).

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Thanks, that was very useful.
I'm buying that GW-Instek from Eleshop within the next 24 hours, and the AD2 from Amazon (AFAIU the gds1054B doesn't do Bodes..). If I keep lingering I'll never buy anything...
balnazzar:

--- Quote from: 2N3055 on October 02, 2022, 04:43:05 pm ---
--- Quote from: nctnico on October 02, 2022, 03:49:47 pm ---
--- Quote from: 2N3055 on October 02, 2022, 01:41:54 pm ---
--- Quote from: nctnico on October 02, 2022, 01:14:37 pm ---
--- Quote from: balnazzar on October 02, 2022, 11:13:18 am ---
--- Quote from: nctnico on October 01, 2022, 11:16:03 pm ---No. But depending on your location, a GW Instek GDS1054B could be a good alternative to buy a decent 4 channel oscilloscope (options can be enabled for free using a key generator available on this forum). For example: https://eleshop.eu/gw-instek-gds-1054b.html

--- End quote ---

Interesting. Mh. How does it compare to the Siglent? Snappier UI?

The screen looks smaller than Siglent's, but it's still 7". Probably it's the scope body that's larger.. I'm seeing that people on this forum adapted a 8" screen, but it's far from being straightforward.

Tell me, is that Eleshop a reliable vendor? Thanks!

--- End quote ---
IMHO Eleshop is a reliable vendor. I have bought some test equipment from them (and returned one as well because it didn't meet my expectations). The firmware for the GDS1054B is mature. If you do run into a problem, the service department from GW Instek is responsive and they will fix bugs (if you happen to find one). Personally I find GW Instek's UI easier to use compared to Keysight. The key difference is that GW Instek has a horizontal and vertical row of buttons which makes navigating through the menus much easier. The seperate 'select' button prevents you from turning the rotary encoder while pressing it and selecting a different menu item than the one you wanted to select (which typically happens to me when the rotary encoder and select button are integrated in one).

--- End quote ---
Little GW Instek 1000 has bode plotting?

--- End quote ---
No, but it leaves enough room in the budget to buy an analog discovery to do bode plotting with. It could be a more powerfull combo compared to buying a single, more expensive unit.

--- End quote ---

Analog Discovery II is 400€....

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Indeed. Considering that the Instek is ~500 eur, and that AD2 is ~400, I should be within my budget. The alternative would be the MSO5074.
But, as far as I understood:

- The MSO5K is noisier than Instek, and has a worse front end.
- It has a buggy firmware, while Instek's is mature enough
- Two instruments are better than one, in case the first goes kablooey, you have the second.
- Differential probing is possible with the AD2 (although up to 9 MHz).
- You can work on digital stuff with the AD2 (while the logic probe for the MSO5K costs a fortune, relatively speaking).

On the cons side:

- 7" inches screen VS. 9" is a big minus
- The fan grid on the Instek appears to be tiny. Tiny fan = more noise. Probably more than the MSO5K.

All in all, I think I'll be better served with the AD2 + Instek, for the same price.
balnazzar:
Mh, one thing I didn't notice is that the Instek has no external trigger input. That's not a good thing.
nctnico:

--- Quote from: balnazzar on October 02, 2022, 07:13:06 pm ---Mh, one thing I didn't notice is that the Instek has no external trigger input. That's not a good thing.

--- End quote ---
That is lacking on many lower end 4 channel oscilloscopes.
tautech:

--- Quote from: balnazzar on October 02, 2022, 11:09:45 am ---
--- Quote from: tautech on October 01, 2022, 11:04:47 pm ---You should also be aware SDS2kX Plus has an inbuilt 50 MHz AWG and therefore already has a stimulus source for Bode plot use whereas with X-E models a stimulus source for Bode plot use is an additional expenditure.

--- End quote ---

Is it inbuilt? I thought one had to buy the little black boxy thing in order to enable the WG...

--- End quote ---
Yes and class leading at 50 MHz.

All Siglent DSO's capable of Bode plot can drive the USB powered SAG1021I that is now an isolated channel version however like any internal or USB powered AWG, stimulus levels are very limited, regardless of the brand.

If you need a wide dynamic range and and good stimulus levels from an AWG, a standalone 2ch unit and Bode plot capable DSO is the only way to go and offer far more options as skill and needs develop.

Think of this as upselling if you like but why at this level of investment do you need to your limit capabilities in your future as one day you might think doing this is very valuable:
https://www.eevblog.com/forum/testgear/fooln-around-with-dso-awg/
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