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| Help Choose a Used Waveform / Function Generator Upgrade |
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| mapleLC:
--- Quote from: bdunham7 on June 17, 2022, 10:31:10 pm --- --- Quote from: mapleLC on June 17, 2022, 09:03:30 pm ---What do you think as a mix of more modern design and build quality? --- End quote --- If you have space for the monster and can get one very cheap, I suppose it meets your criteria. I'm sure they're built like tanks. Hopefully not like Russian tanks. But I don't think I'd want to spend $900 for one on eBay when a $300 model from Siglent or Rigol will outperform it in almost every way imaginable. --- End quote --- I wouldnt pay $900. It wont outperform the china stuff in some ways, but the build quality and feel of using a RS is worth the performance compromises. That would change if I were in a situation where I needed much higher precision, but in that case I would probably still buy used, just invest a lot more in it. I don't like to give my money to the companies you mention and many similar to them. |
| mapleLC:
--- Quote from: nctnico on June 17, 2022, 10:55:00 pm --- --- Quote from: bdunham7 on June 17, 2022, 10:31:10 pm --- --- Quote from: mapleLC on June 17, 2022, 09:03:30 pm ---What do you think as a mix of more modern design and build quality? --- End quote --- If you have space for the monster and can get one very cheap, I suppose it meets your criteria. I'm sure they're built like tanks. Hopefully not like Russian tanks. But I don't think I'd want to spend $900 for one on eBay when a $300 model from Siglent or Rigol will outperform it in almost every way imaginable. --- End quote --- Actually the Feeltech and Uni-t models already run circles around the R&S ADS! The only thing that the R&S ADS has going for it, is sequence mode but in order to use that effectively you'll need the PC software that goes with it. But that PC software seems to be no longer available (it wasn't a free download). Also build quality issues on a similar generator from R&S: https://www.pa4tim.nl/?p=2417 All in all the R&S ADS is the perfect unit to show that technology has advanced a lot. Edit: if you really want to buy a good used function generator then look at the Tektronix AFG3000 series. --- End quote --- Thanks, I will research that Tek. The model from that post is not the same, but I am sure they all have their technical issues. |
| TurboTom:
Make sure to get a component-level maintenance manual with your AWG. You may need it sooner than anticipated... IMO, there's good reason for getting some type of "mature" test gear. PSUs for example won't "age" that fast. Also, a 25...30 years old spectrum analyzer with reallly high bandwidth (Tek 492AP / 2794) may serve the hobbyist well since modern gear with that kind of bandwidth is just way too expensive. Analog to this is the situation with RF signal generators and level meters, and maybe even bench multimeters. But all kind of signal processing gear that's, say, older than 10...15 years, is completely obsolete. I can only chime in with most fellow members: When it comes to oscilloscopes or arbitrary waveform generators that you really want to use as a tool, get a recently made unit. And for the fun of tinkering and enjoying the build quality (and possibly some workout once in a while... ;D), get yourself a Tektronix 492AP! It may actually be useful now and then... |
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