UNI-T UTG962E vs JUNTEK PSG9080 / <100EUR signal generators - Page 1
Forum section: electronics / testgear

author: Rooster Cogburn
author_rank: Regular Contributor
timestamp: November 11, 2021, 07:02:19 pm
content: With the 11.11 AliExpress sale it seems both of these units can be had for <100EUR shipped incl. taxes. That seems like a good deal, I just not sure which one to get as a beginner's signal generator. I'd lean heavily towards the UNI-T just for its size (bench space is very, very limited here), but I just want a quick sanity check if I'd be making a mistake. Thanks!

author: Alti
author_rank: Frequent Contributor
timestamp: November 11, 2021, 08:20:44 pm
content: JunTek PSG9080 discussion on ourforum.

author: ledtester
author_rank: Super Contributor
timestamp: November 11, 2021, 08:48:27 pm
content: I don't think you will be making a mistake with the Uni-T.It has been discussed here, e.g.:https://www.eevblog.com/forum/testgear/uni-t-utg932utg962-200msas-function-arbitrary-waveform-generator-220394/msg2807932/#msg2807932It also gets a thumbs up from voltlog:10 Gift Ideas For Electrical Engineers In 2021 -- voltloghttps://youtu.be/J3mq0lt7Vlw

author: Rooster Cogburn
author_rank: Regular Contributor
timestamp: November 11, 2021, 09:03:04 pm
content: Sorry, I should've stated what I actually looked at.I read the entire UNI-T UTG962E thread since that was the device I'm most interested in, just discovered the existence of a <100EUR PSG9080, but I have only glanced over the PSG9080 thread. From what I can see, the downsides of the UNI-T are:- Poor PC software and no permanent storage of custom wave forms- Slow rise time and hence a more limited actually useful range for the square / pulse waves- Lack of inputs / outputs besides the two channel outs and the sync / freq. measurement inputThe PSG9080 seems to be superior regarding the last point, having a analog modulation input, a TTL interface connector on the back and also the ability to output sync. Is that the main difference and they're otherwise reasonably comparable?

author: ledtester
author_rank: Super Contributor
timestamp: November 12, 2021, 02:16:53 am
content: Quote from: Rooster Cogburn on November 11, 2021, 09:03:04 pmThat's a very good price for the PSG9080 - where can you get it for the price?

author: bianchifan
author_rank: Regular Contributor
timestamp: November 12, 2021, 08:56:53 am
content: Quote from: Rooster Cogburn on November 11, 2021, 07:02:19 pmI was thinking on a UTG932 when I noticed the price crush for a PSG9080.So I did a new research and found new infos from some guys who owned both respectively some other more expensive ones.All of them stated a quite high level of harmonics of the 9080...BUT the 9080 is an arbitrary generator, not a sinus generator.For example, a 3 times more expensive Siglent has less harmonics but a significantly higher noise floor.The occillator of the 9080 can be trimmed within the firmware until its only a few hz off at 10MHz. Some guys complained, that this correction factor cant be eliminated and disturbs the usage of an external reference i.e. GPSDO.Those guys who need a absolutely correct and stable RF prefer the UTG for its hackable with GPSDO.Those guys who need various arbitrary wave forms prefer the 9080.Those guys who own also a FY6800 state the PSG9080 much more cleaner waveforms.Most negative comments are based on the usage of an R2R DAC and the harmonic level.I own the pre-predecessor of the 9080, an MHS-5200A and I'm happy with it.Yesterday I ordered the 9080 for 104,66$, the Mastercard app tells me: 90,93€.

author: bianchifan
author_rank: Regular Contributor
timestamp: November 12, 2021, 09:01:18 am
content: Quote from: ledtester on November 12, 2021, 02:16:53 amhttps://www.aliexpress.com/item/1005003374213191.html?spm=a2g0o.productlist.0.0.3c9048a2wxcZWV&algo_pvid=a40e32c6-fd83-45fd-8b8f-5b8de70323cf&algo_exp_id=a40e32c6-fd83-45fd-8b8f-5b8de70323cf-1&pdp_ext_f=%7B%22sku_id%22%3A%2212000025480495112%22%7D

author: mawyatt
author_rank: Super Contributor
timestamp: November 12, 2021, 04:57:19 pm
content: That's a good price, here is US it's more like ~$150Best,

author: ledtester
author_rank: Super Contributor
timestamp: November 13, 2021, 01:41:14 pm
content: Quote from: bianchifan on November 12, 2021, 09:01:18 amWell - that store doesn't have them anymore. Wouldn't have been able to buy from them anyway since they don't ship to the US.My guess is that the guy imported a small number of them (like 20) into the Czech Republic and that's why he was able to offer them in Europe for that price. Perhaps it gives some insight into what the wholesale cost of these units really are.

author: mawyatt
author_rank: Super Contributor
timestamp: November 13, 2021, 03:00:52 pm
content: Quote from: ledtester on November 13, 2021, 01:41:14 pmWe ordered a ODA (OPE-Q1) linear power supply with dual isolated 120V (+-120V), +12/15V, +3.3/5V that cost ~$1K, the OEM shipped the invoice which the Canadian distributor didn't remove, their cost was less than $500! So some equipment can have a nice mark up!!Wish we could have found a PSG9080 for ~$100, this could free up our SDG2042X for more involved work! Still waiting for the SDG7000 series AWGBest,

author: tautech
author_rank: Super Contributor
timestamp: November 13, 2021, 05:14:01 pm
content: Quote from: mawyatt on November 13, 2021, 03:00:52 pmIt's with beta testers.