Which generator?? - Page 1
Forum section: electronics / testgear

author: amdnra
author_rank: Contributor
timestamp: November 07, 2021, 12:30:02 am
content: Hi. I was thinking about buying a generator to design/test analog electronics and came across these generators:Siglent SDG2122XInstek MFG-2260MRASiglent SDG6022XTEKTRONIX AFG3052CAside from the obvious frequency differences, Is there one that would be more reliable or have more stable firmware,ease of operation or ?Oh, and would it be worth it to get Isolated output channels?Thanks for your advice

author: rvalente
author_rank: Frequent Contributor
timestamp: November 07, 2021, 03:41:56 am
content: I dont know, you did not state, what you need them for? Bandwidth? Signal type? Frequency? Impedance? Arbitrary or functions?

author: Grandchuck
author_rank: Super Contributor
timestamp: November 07, 2021, 02:25:21 pm
content: I have the Siglent SDG2122X and can vouch for its quality. Also, EasyWaveX is better than most free software ... it is actually useful!

author: Frex
author_rank: Regular Contributor
timestamp: November 07, 2021, 03:44:04 pm
content: Rigol DG811 "'updated" to DG992...Frex

author: amdnra
author_rank: Contributor
timestamp: November 07, 2021, 06:51:08 pm
content: I would say a frequency of 50 Mhz or so...a bit more it's ok as well, and Arbitrary capabilities for those probably infrequent times when I would need a non standard waveform.Anybody's used the Tektronix or the Instek?Thanks Frex, Grandchuck, rvalente

author: nctnico
author_rank: Super Contributor
timestamp: November 07, 2021, 09:14:27 pm
content: Quote from: amdnra on November 07, 2021, 06:51:08 pmI've evaluated the Instek MFG-2260MRA but found the user interface clumsy and the DDS resolution is too low for a professional grade generator. I ended up with a Tektronix AFG31000 series and wrote a review about the unit I got on loan before buying one:https://www.eevblog.com/forum/testgear/tektronix-afg31022-review/

author: amdnra
author_rank: Contributor
timestamp: November 08, 2021, 02:58:58 pm
content: Hi nctnico. Thanks for your reply. I've been reading your posts for quite some time and always find them informative and thoughtful.Do you have any experience ot thoughts about the TEKTRONIX AFG3052C? Please comment if you do..The newer Tektronix looks good (great review) but it is around $4100 or less on eBay...The olderTEKTRONIX AFG3052C is of course more affordable...

author: Frex
author_rank: Regular Contributor
timestamp: November 08, 2021, 03:34:32 pm
content: amdnra,The AFG3052C have 50MHz bandwidth, the upgraded DG811can go up to 100MHz one both channels and cost only 237€ VAT included.Not that I don't have RIGOL auction !Frex

author: hpw
author_rank: Frequent Contributor
timestamp: November 08, 2021, 04:09:06 pm
content: Quote from: amdnra on November 07, 2021, 06:51:08 pmWell, regarding sine or square wave ... while this is IMHO an important factor to check ..Keep in mind that Siglent 2K / 6k models have a modulation issue on square wave and low FM deviation as modulation fades outHp

author: Hexley
author_rank: Regular Contributor
timestamp: November 08, 2021, 04:20:00 pm
content: If 50 MHz is enough, take a look at the Siglent SDG1032X, which can be hacked easily to 60 MHz. One nice thing about the 1000x generators is that they have a dedicated square wave shaper circuit, and thus somwehat sharper edges than the 2000x for square waves.