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Decent modern Signal/waveform Generator here in early 2024

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Mechatrommer:

--- Quote from: 2N3055 on January 08, 2024, 08:17:39 am ---SDG1000X is a piece of entry level "proper"  lab equipment. Square wave edges on UTG962 are 16 ns, and 4ns for SDG1000X.

--- End quote ---
is that matters? rise time? synch output of UTG900 is 963ps (~1ns)... other facts, GUI doesnt go to 0 when twist knob from 1MHz, it will go cleverly down to 900kHz, fwiw...
https://www.eevblog.com/forum/testgear/uni-t-utg932utg962-200msas-function-arbitrary-waveform-generator-220394/msg2927402/#msg2927402

cncjerry:
Only issue with the Siglent 1032x, which is upgraded in my case, is the frequency resolution isn't as expected.  I need a 10,000,001hz signal and even with a common reference, it is measured as 10,000,000.988hz.  I think I read that the resolution is .023hz.  I have other synthesizers, some over 30yrs old, that get a lot closer with resolution to .001hz

nctnico:

--- Quote from: cncjerry on January 08, 2024, 06:05:04 pm ---Only issue with the Siglent 1032x, which is upgraded in my case, is the frequency resolution isn't as expected.  I need a 10,000,001hz signal and even with a common reference, it is measured as 10,000,000.988hz.  I think I read that the resolution is .023hz.  I have other synthesizers, some over 30yrs old, that get a lot closer with resolution to .001hz

--- End quote ---
That is the 'problem' with these low cost generators. I have tested various units from several brands but they all have the same problem; the DDS resolution is not very high so the accuracy of the frequency setting is not very high despite the units touting a setting resolution of 1uHz. Unfortunately the number of significant digits (and thus the accuracy) for the frequency is often not specified in the datasheet. If you need precise timing performance, you need to look at generators from Keysight or Tektronix (AFG31000 series for example).

2N3055:

--- Quote from: cncjerry on January 08, 2024, 06:05:04 pm ---Only issue with the Siglent 1032x, which is upgraded in my case, is the frequency resolution isn't as expected.  I need a 10,000,001hz signal and even with a common reference, it is measured as 10,000,000.988hz.  I think I read that the resolution is .023hz.  I have other synthesizers, some over 30yrs old, that get a lot closer with resolution to .001hz

--- End quote ---

That is because it is not a synthesizer, it is NCO.
And none of modern AWG will be synthesizers in classical sense with PLL dividers and such.
If there are some, you bet it will be obviously stated in a datasheet.

Data you stated would mean frequency setting resolution of 23 ppb....
Is that not good enough?
For 340 €?

DaneLaw:

--- Quote from: 2N3055 on January 08, 2024, 11:25:08 am ---
--- Quote from: DaneLaw on January 08, 2024, 10:18:14 am ---
--- Quote from: 2N3055 on January 07, 2024, 10:49:14 am ---One thing to note is that Rigols are hackable but in a way that after "upgrade" they are not fully adjusted in whole new BW.
Rigol is not doing that. After "upgrade", "liberated" BW is not properly leveled. There are topics here on that...
Funny enough, older Rigol DG1000Z was fully calibrated and adjusted so that one worked properly even after "upgrade".

--- End quote ---

Which Rigol model are you referring to?
the current lineup? the "not fully adjusted", meaning a lack of linearity in the liberated range?? how sever?

--- End quote ---

New DG800/900 series.. I mean, new, it has been few years now, since 2018...
Not lack of linearity, but output levels in "liberated" ranges drops off. By a lot..
There are numerous other problems too, software being buggy...
There is a hack topic and it is all there.

Shame. I like old DS1000Z, for what it is, and have kept it, despite having SDG6000X and SDG7000A available.

In meantime Rigol released new DGxxxPro series of AWG with yet another brand new OS and interface.
New system to again debug from the scratch, without ever committing enough resources to fully polish and debug old ones...

--- End quote ---

I see, yes current lineup DG800 & DG900 which are these fanless units from Rigol with a quite distinct OS-theme that doesn't look anywhere like their new "Pro" models interface

I am familiar with the new Rigol DGxxxPro-line and its certain fundamental issues here the last few weeks in use, which makes me wanna look for alternatives and gain an overview' when it comes to a modern decent signal gen in early 2024.. - and some insight into which way people would go in 2024 if they were in the market for one.
Mostly 3 other models seem obvious SDG1032X and SDG2042X from Siglent and the entry Rigol DG811 as it looks like that  Rigol entry-unit are liberateable to higher revisions, though have to look into what extent the output drops, but all of them are AC-based and for good reason, hence stationary use.

After watching both Defpom SDG1032X video that tautec loan'ed him and Afrotechmods solid walkthru of the flagship SDG6052X and Dave's SDG2120X video where he compared it to the older SDG5082 and also the bigger Rigol DG4xxx that blackdog displayed risetime against (thx).. I'm starting to get my heading and the pros & cons between the models.

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