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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: tautech on October 05, 2022, 07:46:31 pm ---
Siglent SDS1104X-U

$380 for sds1202x-e


--- End quote ---

Although I may seem super-lazy, I actually look at the datasheets (understanding them up to my modest competence, of course). I didn't even mention both of those scopes in my questions.. The first because for a modest 100 eur difference (street price) it lacks a lot of perks. Seems made just to offer a direct competitor for the 1054Z, dollar for dollar, feature for feature. The second because several times I already had need for at least 3 channels at the university lab.

tautech:

--- Quote from: balnazzar on October 05, 2022, 08:11:47 pm ---
--- Quote from: tautech on October 05, 2022, 07:46:31 pm ---
Siglent SDS1104X-U

$380 for sds1202x-e


--- End quote ---

Although I may seem super-lazy, I actually look at the datasheets (understanding them up to my modest competence, of course). I didn't even mention both of those scopes in my questions.. The first because for a modest 100 eur difference (street price) it lacks a lot of perks. Seems made just to offer a direct competitor for the 1054Z, dollar for dollar, feature for feature. The second because several times I already had need for at least 3 channels at the university lab.

--- End quote ---
But it's not !
X-U is already a 100 MHz DSO and has zero optional features to hack.

balnazzar:

--- Quote from: tautech on October 05, 2022, 08:21:43 pm ---But it's not !
X-U is already a 100 MHz DSO and has zero optional features to hack.

--- End quote ---

Didn't know about the zero optional hackable feature, but I took a hacked 1054Z for granted.

nctnico:

--- Quote from: balnazzar on October 05, 2022, 08:04:18 pm ---
--- Quote from: nctnico on October 05, 2022, 05:00:23 pm ---That 1.2Gs/s is not for real. The actual samplerate for the SDG2k units is 300Ms/s

--- End quote ---

Two questions:
1. Why do they declare 1.2 GSa/s?

--- End quote ---
Due to some trick to smooth the output. But this doesn't work for all signals.

--- Quote ---2. Is the actual sample rate of the 1000X even lower?

--- End quote ---
I don't think so. The real samplerate is typically mentioned for the maximum samplerate that can be used for arbitrary waveforms.

alm:

--- Quote from: balnazzar on October 05, 2022, 04:25:58 pm ---Used equipment: considered. But if you read here and there, for example a known problem of the AD/AD2 is the fragilty of the micro-USB connector. If you aren't careful, it will get broken or partially broken very soon. A lot of people on forums lamented that having purchased an used one, they found the connector 'working' but basically broken and sloppily repaired.. And too few vendors on ebay offer the return option, not to mention the hassle.

--- End quote ---
Well, people generally won't post to complain their USB connector is working fine ;). FWIW, I bought both an AD2 and Digital Discovery used on eBay a while ago, and the USB connector is fine on both (n=2). You can often see from the state if a unit has barely been out of the package or has been used in class every day for months.

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