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Siglent SDS804/814X HD or Rigol HDO914S for Mechatronics student

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Fungus:

--- Quote from: Jack359 on September 22, 2024, 10:14:29 am ---I have found only comparison threads between SDS804X HD and HDO804 and from which I can see that SDS804X HD is superior but how about compared to HDO914S?

--- End quote ---

I wouldn't get the HDO900 series, it has no real advantages over the HDO800. If you can get a cheap HDO804 then go for that instead. It can easily be persuaded to think it's a DHO924.

For Mechatronics you could also look around for a deal on a Rigol MSO5074.

ebastler:

--- Quote from: KungFuJosh on September 23, 2024, 05:12:53 pm ---Most of the issues you have reported are PEBKAC errors. That's not the scope's fault. If a device doesn't do something you want it to do, the way you want it to do it, despite not being advertised to do that thing in that way, does not make it a bug.

If you want a scope with an RTC, you should buy a scope with an RTC.

More importantly, for the actual bugs, Siglent is very good about updates to correct them. Rigol is famously terrible about this.

--- End quote ---

To be fair, eTobey has found a significant number of actual bugs -- more than anyone else on the forum, and more than I had expected to be present in the scope. But I agree that Siglent has fixed a large share of them quite promptly, and with an active presence here in the forum to get clarity on some of them. Certainly better than Rigol in that respect.

And regarding a real-time clock, neither the Rigol DHO800/900 nor the Siglent SDS800X HD have a battery-buffered clock. Both rely on getting the current time from an NTP server upon boot, and neither of them claims otherwise in the datasheet. NTP time works reliably for most users; sporadic problems are probably due to choosing an unreliable external NTP server or using the built-in (unsupported) NTP server on a Windows computer.

Fungus:

--- Quote from: hansibull on September 23, 2024, 07:45:58 am ---I don't own a Rigol scope (I have a Siglent SDS1000X HD), but why do users "hate" the 900 series? Isn't logic analyzer capabilities nice to have? It certainly can't be worse than the 800?

--- End quote ---

Yeah, but the probes are very expensive (300 bucks) and bandwidth is limited.

You can analyze logic just fine with the analog inputs, so long as you don't need more than 4 channels.

Pretty much all comms is serial these days anyway (SPI, I2C, etc.) so you don't need many lines.

2N3055:

--- Quote from: ebastler on September 23, 2024, 05:28:22 pm ---
--- Quote from: KungFuJosh on September 23, 2024, 05:12:53 pm ---Most of the issues you have reported are PEBKAC errors. That's not the scope's fault. If a device doesn't do something you want it to do, the way you want it to do it, despite not being advertised to do that thing in that way, does not make it a bug.

If you want a scope with an RTC, you should buy a scope with an RTC.

More importantly, for the actual bugs, Siglent is very good about updates to correct them. Rigol is famously terrible about this.

--- End quote ---

To be fair, eTobey has found a significant number of actual bugs -- more than anyone else on the forum, and more than I had expected to be present in the scope. But I agree that Siglent has fixed a large share of them quite promptly, and with an active presence here in the forum to get clarity on some of them. Certainly better than Rigol in that respect.

And regarding a real-time clock, neither the Rigol DHO800/900 nor the Siglent SDS800X HD have a battery-buffered clock. Both rely on getting the current time from an NTP server upon boot, and neither of them claims otherwise in the datasheet. NTP time works reliably for most users; sporadic problems are probably due to choosing an unreliable external NTP server or using the built-in (unsupported) NTP server on a Windows computer.

--- End quote ---


eTobey statements are incorrect. NTP was actually enhanced in last FW. It will wait for network and retry.
I know it was done. I asked for it.
As you said, it has no realtime clock and nobody ever said it has.
NTP works very well now. You can plug in network later after the boot and it will acquire time.

Fungus:
I think the Rigol's easier to use with WiFi. Just a $7 USB dongle.

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