Why aren't these combined into the one piece of test equipment ? - Page 1
Forum section: electronics / testgear

author: swmcl
author_rank: Contributor
timestamp: May 14, 2022, 09:14:39 pm
content: Please excuse my ignorance but ...Why isn't the "SIGLENT SVA1032X 3.2GHz 2-port VNA with Spectrum analysis" combined with the "SIGLENT SSA3032X-R Real-time Spectrum Analyzer 9kHz~3.2GHz" ??Is it just essentially a marketing exercise ?What can't I do on one machine or the other ?Is there a technical reason why you would not combine the two machines ? (This would be backed up by seeing companies buying the two machines I assume.)Cheers.

author: tautech
author_rank: Super Contributor
timestamp: May 14, 2022, 09:23:45 pm
content: Quote from: swmcl on May 14, 2022, 09:14:39 pmApart from BW all these models have identical SA capability: SSA3000X Plus, SVA1000X and SSA3000X-R.QuoteYes

author: tv84
author_rank: Super Contributor
timestamp: May 14, 2022, 09:24:08 pm
content: Lookhere.Basically it shows you that the SVA doesn't have the realtime capability, because it doesn't have the necessary HW.If you are willing to pay the X-R price, I think Siglent can create a "special" SVA for you.Lookherewhere I posted the inside of a SSA X-R. For those that have seen SVA/SSAX+ you can see that the HW is different.Quote from: tautech on May 14, 2022, 09:23:45 pmWell, maybe SSA3075X+ is a X-R inside...The SVA/X+ can't be licensed from 3.2GHz to 7.5GHz. But the X-R can.

author: swmcl
author_rank: Contributor
timestamp: May 14, 2022, 09:48:08 pm
content: OK.So essentially, the market might get to a point where it would demand the two instruments be combined. Or perhaps we have two legacy product lines that will naturally be combined as technology advances.I think the VNA has a more sensitive front end or lower noise but I could be wrong.Thanks for the replies so far.

author: tv84
author_rank: Super Contributor
timestamp: May 14, 2022, 10:16:46 pm
content: Quote from: swmcl on May 14, 2022, 09:48:08 pmWell the combination is already here as the X-R does the whole job. Of course the technology advances will bring the price down.BTW, a few years ago I was asking myself this same question that you did.Off-topic curiosity: A Rigol RSA3015N can be "upgraded" to a RSA5032N and costs only 2.500€, while a Siglent SSA3032X Plus which costs 2.900€ can be converted to a SVA but has no realtime capabilities.

author: tv84
author_rank: Super Contributor
timestamp: May 14, 2022, 10:25:04 pm
content: Quote from: tv84 on May 14, 2022, 09:24:08 pmThinking more on this idea...I wonder if one canconvert a SSA3032X-R into a SVA1075X VNA or, at least, a SSA3075X+.I know that we would loose the realtime capability BUT we would gain the BW increase for several k€ less!

author: tautech
author_rank: Super Contributor
timestamp: May 14, 2022, 10:30:00 pm
content: Quote from: tv84 on May 14, 2022, 10:25:04 pmConsult datasheets.

author: tv84
author_rank: Super Contributor
timestamp: May 14, 2022, 10:37:29 pm
content: Quote from: tautech on May 14, 2022, 10:30:00 pmA ballsy & knowledgeable volunteer is needed...Adding it to the TO DO LIST.

author: swmcl
author_rank: Contributor
timestamp: May 14, 2022, 10:39:17 pm
content: Yeah ... not me OK !

author: tautech
author_rank: Super Contributor
timestamp: May 14, 2022, 10:59:23 pm
content: Quote from: tv84 on May 14, 2022, 10:37:29 pmThere are subtle differences in DANL between model ranges.....suggests different HW.

author: Martinizhr
author_rank: Newbie
timestamp: September 25, 2023, 12:34:22 am
content: Quote from: tv84 on May 14, 2022, 10:16:46 pmHi tv84,I am considering buying a Rigol RSA3015N. Can you point me to the instructions on how to "upgrade" it?Thanks in front