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| Function generator - need a jungle guide:-) |
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| FriedMule:
--- Quote from: rstofer on October 27, 2019, 07:56:33 pm --- --- Quote from: FriedMule on October 27, 2019, 07:11:58 pm ---so if I understand right, the 33120A is a bit like some computers were in "the good old days" fine for it's time and maybe still okay, until something goes --- End quote --- In the first place, the 33120A is a single channel generator. Most of the more modern AWGs will have two channels. That's kind of a big deal. I can't do the Valentine Heart with only one channel. Among other things... --- End quote --- Yes I can easily imagine times where 2 channels would be handy. --- Quote from: rstofer on October 27, 2019, 07:56:33 pm --- I BRIEFLY looked at the User Manual and I didn't see a way to add the 3rd, 5th, 7th, 9th and 11th harmonics to a fundamental sine wave. Maybe I missed it. The maximum harmonic frequency still has to fit inside the bandwidth so for a Siglent 60 MHz unit, so a 5 MHz signal is all we can use as a fundamental if we really need the 11th harmonic. Everything has limits --- End quote --- Hmm it has to be able to do it, it's an abritary. :-) I am thinking on audio where 10th harmonic would be nice to create, but that is way below what the generator can handle. --- Quote from: rstofer on October 27, 2019, 07:56:33 pm --- The 33120A has 10 internal waveforms, the SDG2082X has 196 internal arbitrary waveforms --- End quote --- WOW what a differance, yes and they are probberly with about the same performance... old proudly made vs new Chinese. --- Quote from: rstofer on October 27, 2019, 07:56:33 pm --- On its best day, the 33120A isn't any significant fraction of the Siglent with the possible exception that it has lower harmonic distortion. Then again, it has much lower bandwidth. --- End quote --- I am just surprised that you can get so much for so little, there has to be a chats:-) --- Quote from: rstofer on October 27, 2019, 07:56:33 pm --- I'm not going to do it but I suspect an Excel spreadsheet of specifications might be interesting. --- End quote --- It may be great, but then it had to be of several models and types. --- Quote from: rstofer on October 27, 2019, 07:56:33 pm --- I don't know why we're not including the Siglent SDG1000 series AWGs. They are considerably cheaper but, of course, they won't have the features of the SDS2000 series. The only one I can really talk about is the SDG2082X because it is on my bench. Again, the buyer needs to compare the specs. --- End quote --- No but maybe it is because the price difference is not that great while the benefits are? --- Quote from: rstofer on October 27, 2019, 07:56:33 pm --- There is also the SDG800 series that is even cheaper. --- End quote --- Hmm yes but it looks like it is a model if you cant afford other "real" generators:-) --- Quote from: rstofer on October 27, 2019, 07:56:33 pm --- Tautech needs to weigh in here. This thread rightly belongs in the Test Equipment forum where the TEA people can weigh in. --- End quote --- And he did!!! :-) |
| tautech:
--- Quote from: FriedMule on October 27, 2019, 10:10:36 pm --- --- Quote from: rstofer on October 27, 2019, 07:56:33 pm ---I don't know why we're not including the Siglent SDG1000 series AWGs. They are considerably cheaper but, of course, they won't have the features of the SDS2000 SDG2000X series. The only one I can really talk about is the SDG2082X because it is on my bench. Again, the buyer needs to compare the specs. --- End quote --- No but maybe it is because the price difference is not that great while the benefits are? --- End quote --- Only the max BW and 14 bit vs 16 bit.....and touch screen on SDG2000X and SDG6000X models Please notice the distinction between 1000 series and 1000X series: https://int.siglent.com/products-overview/sdg1000/ The 5000 and 1000 models are being phased out in favor of the more capable and modern X models. |
| FriedMule:
--- Quote from: tautech on October 27, 2019, 08:29:27 pm ---I'm here. :) The key here is signal purity and for general sig gen use it doesn't matter too much as 14 bit AWG's are fine for lots of requirements. SDG1032X is your cheapest entry level 2ch AWG and the feature set is much the same as the 16 bit SDG2000X models. Both SDG1032X and SDG2042X can be hacked to max BW's for their ranges. SDG1000X models do square wave to their max BW's while most other brands and models limit square wave BW to some figure much lower than their sine wave spec. --- End quote --- Great, thanks for being here!! SDG2042X looks like it can be a 120MHz! And 16bit sounds wary nice, I can see many models from DIY beginner to NASA gone wild:-) Now where the DIY units is cheap-ish, is there any reason for going for anything less then the 2000 series? --- Quote from: tautech on October 27, 2019, 08:29:27 pm --- I have all the Siglent AWG models and could pick any one but the SDG1032X is what lives on my bench as it perfectly meets my current needs. If I need to venture into the RF world I drag out my SSG3021X hacked to the 3.2 GHz model. --- End quote --- Is that not an spectrum analyzer? |
| tautech:
--- Quote from: FriedMule on October 27, 2019, 10:44:30 pm --- --- Quote from: tautech on October 27, 2019, 08:29:27 pm ---I'm here. :) The key here is signal purity and for general sig gen use it doesn't matter too much as 14 bit AWG's are fine for lots of requirements. SDG1032X is your cheapest entry level 2ch AWG and the feature set is much the same as the 16 bit SDG2000X models. Both SDG1032X and SDG2042X can be hacked to max BW's for their ranges. SDG1000X models do square wave to their max BW's while most other brands and models limit square wave BW to some figure much lower than their sine wave spec. --- End quote --- Great, thanks for being here!! SDG2042X looks like it can be a 120MHz! And 16bit sounds wary nice, I can see many models from DIY beginner to NASA gone wild:-) Now where the DIY units is cheap-ish, is there any reason for going for anything less then the 2000 series? --- End quote --- Only if the relative signal purity a 16 bit sig gen offers isn't required. Only you can decide on exactly what your needs are and might be. Also consider what DSO you have as some can capture a waveform and then import and recreate it with the AWG. Not everyone considers this a necessary feature and yet others love it. Also, if you have one of the Siglent DSO's that can do Bode plot any of the Siglent AWG's can interface seamlessly with the DSO to provide the signal source for Bode plot. --- Quote from: FriedMule on October 27, 2019, 10:44:30 pm --- --- Quote from: tautech on October 27, 2019, 08:29:27 pm ---I have all the Siglent AWG models and could pick any one but the SDG1032X is what lives on my bench as it perfectly meets my current needs. If I need to venture into the RF world I drag out my SSG3021X hacked to the 3.2 GHz model. --- End quote --- Is that not an spectrum analyzer? --- End quote --- Nope, RF gen: https://int.siglent.com/products-overview/ssg3000x/ |
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