Author Topic: Siglent SVA1015X and SVA1032X 1.5, 3.2GHz Spectrum & Vector Network Analyzers  (Read 35487 times)

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Offline tautech

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Re: Siglent SVA1015X 1.5GHz Spectrum & Vector Network Analyzer
« Reply #300 on: August 28, 2019, 09:19:00 pm »
Improvements:
 Start Frequency in Harmonic measurement in AMK options to 1 Hz

Exactly what does this mean? what is amk?

Advanced Measurement Kit
Yep, and while options for SVA have 120hrs free trial times they do eventually expire.
A customer contacted me a few days back on purchasing AMK for his SSA3021X as there were some features that he wanted to regain.
The pricing of options is such they are not cheap but there is a simple remedy if you can be tethered to a PC, that is using the free EasySpectrum software from the Siglent websites.
It seems all the AMK features are included and you can get the same info from the PC display and capture screenshots too if you desire.
Not as nice as using the instrument stand alone but nevertheless option features are still usable.

SVA1015X, all the SA options should also work fine in EasySpectrum but at this time I can't confirm the VNA option does until I get my demo unit back and try it.
In a few days I will report on this...............
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Offline MasterTech

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Re: Siglent SVA1015X 1.5GHz Spectrum & Vector Network Analyzer
« Reply #301 on: August 29, 2019, 12:14:18 pm »
I imply that the tracking gen starts at 100KHz, right? If so I guess that for getting the response of a filter in even lower frequencies I could still use an external sweeping generator and the SVA configured in max peak mode?
 

Offline tautech

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Re: Siglent SVA1015X 1.5GHz Spectrum & Vector Network Analyzer
« Reply #302 on: August 29, 2019, 07:21:20 pm »
I imply that the tracking gen starts at 100KHz, right?
9 KHz 5 MHz in SA mode, 100 KHz (now, was 10M) in VNA mode.
« Last Edit: August 29, 2019, 09:14:36 pm by tautech »
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Offline Performa01

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Re: Siglent SVA1015X 1.5GHz Spectrum & Vector Network Analyzer
« Reply #303 on: August 29, 2019, 08:46:55 pm »
According to the datasheet the tracking generator starts at 100kHz for both the SVA and SSA.
Considering the system architecture, this seems plausible.

Yes, with an external sweep generator and max hold you can get a frequency response graph, although this method is slower and the signal source needs to have low harmonics in order to give accurate results.
 

Offline tautech

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Re: Siglent SVA1015X 1.5GHz Spectrum & Vector Network Analyzer
« Reply #304 on: August 29, 2019, 09:13:30 pm »
According to the datasheet the tracking generator starts at 100kHz for both the SVA and SSA.

Actually not so, we're both wrong.
SVA  5 MHz~1.5 GHz
SSA 100 kHz~3.2 GHz (3032X)
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Offline tautech

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Re: Siglent SVA1015X 1.5GHz Spectrum & Vector Network Analyzer
« Reply #305 on: September 05, 2019, 03:03:03 am »
SVA1015X, all the SA options should also work fine in EasySpectrum but at this time I can't confirm the VNA option does until I get my demo unit back and try it.
In a few days I will report on this...............
With the current version 5 of EasySpectrum VNA mode is not available.  :(
Questions asked if in a future version it will........
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Offline tautech

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Re: Siglent SVA1015X 1.5GHz Spectrum & Vector Network Analyzer
« Reply #306 on: September 09, 2019, 02:56:43 pm »
Characterizing random antennas:
https://www.eevblog.com/forum/rf-microwave/what-really-is-this-antenna/

RF guru's comments welcome.  :)
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Online Mr. Scram

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Re: Siglent SVA1015X 1.5GHz Spectrum & Vector Network Analyzer
« Reply #307 on: September 10, 2019, 06:44:01 pm »
Is Siglent experiencing issues with the 3.2GHz VNA? It's been coming and announced for ages. I can't imagine that being functional.
 

Offline tautech

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Re: Siglent SVA1015X 1.5GHz Spectrum & Vector Network Analyzer
« Reply #308 on: September 11, 2019, 09:27:51 am »
Is Siglent experiencing issues with the 3.2GHz VNA?
Nope, getting one in my next order.
Announcements soon.
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Offline tautech

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Note this topic name has just been updated so rf-loop might make edits to the OP with SVA1032X info soon.
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Online joeqsmith

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Nice.  Looking forward to seeing what they came up with. 
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Offline tautech

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Re: Siglent SVA1015X 1.5GHz Spectrum & Vector Network Analyzer
« Reply #311 on: September 16, 2019, 08:24:06 am »
Announcements soon.
With release of the 3.2 GHz SVA1032X there is a pricing structure change for it and SVA1015X.
Both will feature the VNA option as standard fare however at an increased base price.

SVA1032X features a slightly lower DANL of -161 dBm/Hz that aligns with SSA3000X models and in addition better amplitude accuracy of <0.7 dB
Further details here:
https://siglentna.com/spectrum-analyzers/sva1000x-spectrum-vector-analyzer/

   
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Offline simone.pignatti

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Hello today is the launch day (Europe) for SVA1032X and SSA3000X Plus.
SVA1015X and SVA1032X have VNA standard, SVA1015X has a new price.
SVA1015X VNA BW 10MHz - 1.5GHz
SVA1032X VNA BW 100kHz - 3.2GHz
To make everything as clear as possible we have created a table that compares the various models of Siglent spectrum analyzer and vector network analyzer. The table is large and looks good on PC and Tablet, on SmartPhone you may have display problems.
here is the link of the table, I also attach an image of it.
https://www.batterfly.com/shop/?route=journal2/blog/post&journal_blog_post_id=27

« Last Edit: September 18, 2019, 09:12:17 am by simone.pignatti »
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Offline borjam

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Interesting to see what's Siglent's official word on SVA1015X specs.

When they launched it the lowest frequency (as quoted on the datasheet) was 10 MHz, but now it can be usable (at least for rough "antenna analysis, just show me the VSWR/RL") from 3 - 5 MHz.

I tried it with a 7 MHz loop and the results were certainly useful.
 

Offline rf-loop

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Interesting to see what's Siglent's official word on SVA1015X specs.

When they launched it the lowest frequency (as quoted on the datasheet) was 10 MHz, but now it can be usable (at least for rough "antenna analysis, just show me the VSWR/RL") from 3 - 5 MHz.

I tried it with a 7 MHz loop and the results were certainly useful.

My HP RF generator (8642B) starting frequency in data sheets start from 100kHz... also front panel nameplate it start 100kHz. Specifgications starts from 100kHz.   In real life it starts from much lower freg. Usable from some kHz. Signal is even quite nice after 10kHz.  But HP do not guarantee any specifications under 100kHz. HP think: If user use it under this (data sheet specs) 100kHz, it is users head ache if it meet user needs or not. Just, use it if it pass needs but don't complain if it doesn't work "right". There is no promise, only unknown, unspecified. 
And this same is with many instruments.

I believe here with SVA is same. But no need complain and grumble if it do not have its normal performance and accuracy when working outside from specificied range. ;)
« Last Edit: September 17, 2019, 10:53:48 am by rf-loop »
If practice and theory is not equal it tells that used application of theory  is wrong or the theory itself is wrong.
It is much easier to think an apple fall to the ground than to think that the earth and the apple will begin to move toward each other and collide.
 

Offline tautech

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Interesting to see what's Siglent's official word on SVA1015X specs.
Officially specs haven't changed.
Latest datasheet with both models:
https://siglentna.com/wp-content/uploads/dlm_uploads/2018/06/SVA1000X_DataSheet_DS0701X_E02A_JCEdit.pdf
Quote
When they launched it the lowest frequency (as quoted on the datasheet) was 10 MHz, but now it can be usable (at least for rough "antenna analysis, just show me the VSWR/RL") from 3 - 5 MHz.
Correct and as a result of SVA1032X development it was decided to lower the SVA1015X VNA BW whereas before anything below 10 MHz was not even available to the user.
What we checked way down in frequencies certainly was usable and even more so when lots of averaging was applied.
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Offline srce

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Does anyone offer a trade in for a SSA3032X upgrading to a SVA1032X?
 

Offline tautech

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Does anyone offer a trade in for a SSA3032X upgrading to a SVA1032X?
List it here:
https://www.eevblog.com/forum/buysellwanted/
Don't forget to list the options installed and a link to the datasheet.
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Offline PhilipPeake

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Interesting....

I upgraded my SVA1015X to 2.2.1.2.2 when I saw it was available.
Never saw any mention of extended VNA range though.
Got an email from Siglent talking about extended range and the new kit so started looking closer, and came to this thread (since this is where you come if you really want to know :-) ).

Switched into VNA mode and tried to set a frequency below 10MHz -- nope.

Hmmm....

Finally looked at the provided links, and saw that the firmware was for SVA1000X.
I had been using the firmware for SVA1015X (since that is what I have).

Tried the 1000X  firmware ... load, re-boot, switch to VNA and lowest frequency is now 100khz!

Slightly annoying that there are two variants on the firmware with the same number that behave differently!

ETA: After a few minutes playing ... I am now MUCH happier with this device. Not covering the lower frequency ham bands was a bit of a pain (but an acceptable one given the other functionality it bought). That niggle has now gone.

I have to say that I am a bit amazed that they get this sort of performance out of those directional couplers though...
« Last Edit: September 29, 2019, 05:39:14 pm by PhilipPeake »
 

Offline tv84

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Finally looked at the provided links, and saw that the firmware was for SNA1000X.
I had been using the firmware for SNA1015X (since that is what I have).

What is a SNA1015X ?

 

Offline PhilipPeake

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Ok ... typo corrected :-)
 

Offline tv84

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OK, Philip.

I think things are not as you said. It's this last version that enabled the new freqs.

And there is no FW for 1015 and another for 1000. It's all the same.

I think they just started renaming it 1015 because of the coming 3.2GHz model.
 

Offline PhilipPeake

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You made me go back and look at the two firmware versions.
Looks like you are right, the 1015.X version I had is 2.2.1.2.1
The new one is 2.2.1.2.2

That explains it. I don't remember where I picked up the .1 version from, but as I remember, it was labeled as the latest release, and this was towards the end of August...



 

Offline tautech

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..............
Finally looked at the provided links, and saw that the firmware was for SVA1000X.
I had been using the firmware for SVA1015X (since that is what I have).

Tried the 1000X  firmware ... load, re-boot, switch to VNA and lowest frequency is now 100khz!

Slightly annoying that there are two variants on the firmware with the same number that behave differently!

ETA: After a few minutes playing ... I am now MUCH happier with this device. Not covering the lower frequency ham bands was a bit of a pain (but an acceptable one given the other functionality it bought). That niggle has now gone.

I have to say that I am a bit amazed that they get this sort of performance out of those directional couplers though...
Please note SVA1015X datasheet specs have not changed and are still listed as 10 MHz in VNA mode and as you  say we are now able to use VNA mode below 10 MHz right down to 100 KHz which is outside guaranteed accuracy however other users have reported good results down to 1-3 MHz.
With SOL Cal at low frequencies results can be improved further than the factory saved data points.
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Offline PhilipPeake

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..............
Finally looked at the provided links, and saw that the firmware was for SVA1000X.
I had been using the firmware for SVA1015X (since that is what I have).

Tried the 1000X  firmware ... load, re-boot, switch to VNA and lowest frequency is now 100khz!

Slightly annoying that there are two variants on the firmware with the same number that behave differently!

ETA: After a few minutes playing ... I am now MUCH happier with this device. Not covering the lower frequency ham bands was a bit of a pain (but an acceptable one given the other functionality it bought). That niggle has now gone.

I have to say that I am a bit amazed that they get this sort of performance out of those directional couplers though...
Please note SVA1015X datasheet specs have not changed and are still listed as 10 MHz in VNA mode and as you  say we are now able to use VNA mode below 10 MHz right down to 100 KHz which is outside guaranteed accuracy however other users have reported good results down to 1-3 MHz.
With SOL Cal at low frequencies results can be improved further than the factory saved data points.

Yes - you can see how they did this: The signal is very noisy (which is to be expected from those small directional couplers) so they just average multiple measurements. Not ideal, but at least it makes measurements possible. Specs are undoubtedly reduced below 10MHz, but so far, I think good enough for typical HAM use.
 


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