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Help a beginner to choose an oscilloscope from the limited brands amount!
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tautech:

--- Quote from: Orion33 on June 29, 2022, 08:21:39 pm ---tautech, tell please, is this applicable for sds1104x-e?

--- End quote ---
Yes, it's the 25 MHz isolated output AWG that fits a few Siglent models, USB powered so a quite limited output drive.
The website you linked is the Netherlands dealer whereas the EU Siglent branch HQ is in Germany.


--- Quote from: Orion33 on June 29, 2022, 11:07:38 am ---
--- Quote from: tautech on June 29, 2022, 10:27:29 am ---The 70 MHz models are China only and not marketed in the west however they do have the same specs apart from BW as the 100 and 200 MHz models.

--- End quote ---
Then it should have two software upgrade options: up to 100 and up to 200, right? What probes are included: 70 or 100 MHz?

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I believe so as the BW is controlled by code to a chip in the input stages. Mr EEVblog did a video on this a few years back.

Probes, I'm unsure but I think it will be PB470 for SDS1074X-E if we go by this:
https://siglentna.com//wp-content/uploads/dlm_uploads/2017/10/Probe_List_01182022.pdf
David Hess:

--- Quote from: IRG7PSH73K10 on April 19, 2022, 10:11:42 pm ---I'm choosing a <1000$ scope for DIY power electronics and simplest AVR projects. That's involve up to 16 MHz square signals and some edgy MOSFETs di\dt (up to 50 nsec and less).

...

Rigol
- DS1054 (406$), customs-free, yet not sure if 0,25 Gs\sec. is enough for my FET's observing purposes with 3+ channels active.
--- End quote ---

A sample every 4 nanoseconds is plenty fast for your application.  100 MHz rise time is only 3.5 nanoseconds.


--- Quote ---Tektronix
- TBS1072C (804$), customs-free, but... 20k memory. Nuff said.  :-\
--- End quote ---

The TBS1072C supports a delayed trigger so it can acquire at full sample rate at any point after the trigger despite the short record length.  This is roughly equivalent to a dual delayed sweep but without the B sweep and B trigger.
Fungus:

--- Quote from: IRG7PSH73K10 on April 19, 2022, 10:11:42 pm ---Rigol
- DS1054 (406$), customs-free, yet not sure if 0,25 Gs\sec. is enough for my FET's observing purposes with 3+ channels active.
- MSO 5074 (894$), customs-free, but the ammount of glitches frustrates me. Also, not quite sure is it still hackable, or the recent units became hack-proof?

--- End quote ---

DS1054Z 100Mhz, 0,25 Gs\sec. is easily enough for a 16Mhz rise time.

Hacking is a sales tactic. They aren't trying to stop it, it's planned in the marketing department. If Rigols weren't hackable then nobody would buy them.

(And the same for Siglent, if they weren't hackable then everybody would buy Rigols)
bdunham7:

--- Quote from: Fungus on June 30, 2022, 03:19:26 am ---(And the same for Siglent, if they weren't hackable then everybody would buy Rigols)

--- End quote ---

If their licenses and BW upgrades weren't priced so absurdly  (the nearly-worthless 350-to-500MHz upgrade for the SDS2000X+ costs more than the scope itself) perhaps some of us would be willing to pay a little more for a legit decked out version.  Especially if they made the hacking a little harder or more dangerous.
Orion33:

--- Quote from: tautech on June 29, 2022, 09:47:10 pm ---Yes, it's the 25 MHz isolated output AWG that fits a few Siglent models, USB powered so a quite limited output drive.
--- End quote ---
It's strange that they didn't use a boost converter. Thank you, this is important information.


--- Quote from: tautech on June 29, 2022, 10:27:29 am ---I believe so as the BW is controlled by code to a chip in the input stages. Mr EEVblog did a video on this a few years back.

--- End quote ---
About 1074? Didn't see. So, it means, that a "well-known script" can expand the bandwidth of this model too?

I heard that in the 1104 models is using board revision D, while in the 1204 - board revision E. Is this true now? What are their differences?
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