Author Topic: Siglent SSA3000X spectrum analyzers  (Read 191694 times)

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Offline kerouanton

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Re: Siglent SSA3000X spectrum analyzers
« Reply #775 on: June 03, 2018, 04:17:40 pm »
Thank you for your fast reply! I'll stick with my beloved VNWA.
 

Offline RFDUK

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Re: Siglent SSA3000X spectrum analyzers
« Reply #776 on: June 03, 2018, 06:14:03 pm »
High spec Wiltron bridges can be good value from ebay. The 60N50 is specified from 5 MHz to 2 Ghz with 40dB directivity min (option 1 is 46dB min).

In practice these are very good down to 1 MHz and up to 3GHz.

Plot is of 60N50 with 5dB pads on input and output. The SSA TG output match is poor, so use a pad directly on the bridge end of the connecting cable.

Top trace normalised through the bridge, bottom trace is a known good SMA load. The poorer performance above 3 GHz is the bridge, not the load.

These regularly sell at <$200 on ebay.
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Offline kerouanton

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Re: Siglent SSA3000X spectrum analyzers
« Reply #777 on: June 03, 2018, 08:56:54 pm »
High spec Wiltron bridges can be good value from ebay.
These regularly sell at <$200 on ebay.

I've been looking at eBay, except one *faulty* at 99€, all 60N50 bridges are around 500€, second-hand.
 

Offline RFDUK

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Re: Siglent SSA3000X spectrum analyzers
« Reply #778 on: June 04, 2018, 12:27:36 am »
Ebay listings need constant monitoring over at least a short period of time for a specific item to get the in-demand stuff. Wiltron bridges are in demand at the right price.

I've two 60N50 here bid for on ebay at <£200 in the last 10 years. I probably spent several hours total of monitoring over months before they came up.

Some ebay 'dealer' test equipment listings for old, quality items are asking a factor of perhaps two times the 'fire sale' price of an open auction, non dealer listing. Over the top buy it now items are often listed by small 'dealers' and often the same listings can be seen for several months, sometimes years. They are waiting for the desperate or ignorant of value customer to come along.

Here is an example from a recent sold auction:
https://www.ebay.com/itm/60A50-Wiltron-50-ohm-VSWR-Bridge-5mhz-2-GHz/192543287545?hash=item2cd47968f9:g:mRgAAOSwJsla~bxl
$182 after 11 bids.  :-+
« Last Edit: June 04, 2018, 12:30:15 am by RFDUK »
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Offline pjuk

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Re: Siglent SSA3000X spectrum analyzers
« Reply #779 on: July 20, 2018, 08:37:35 pm »
Just a quick one...I started an update of firmware from 1.2.8.1 to 1.2.9.1 and it has been sitting on Siglent boot logo screen for about 10 minutes. Any ideas - I don't want to pull the plug just quite yet.

[edit]

it just rebooted and back to normal  :phew:
« Last Edit: July 20, 2018, 08:39:48 pm by pjuk »
 

Offline gperoni

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Re: Siglent SSA3000X spectrum analyzers
« Reply #780 on: August 17, 2018, 04:57:33 am »
I have this obsessions recently, making my workbench silent. I replaced the SSA fan with a Noctua, works fine:

https://i.imgur.com/meTUdnv.jpg
 

Offline markus_jlrb

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Re: Siglent SSA3000X spectrum analyzers
« Reply #781 on: August 17, 2018, 06:56:14 am »
@gperoni

Some type and ordering infos
concerning the silent fan would
be intresing for the community too.

Do not hasitate to let us know
more details ;-)

Markus
 

Offline BillB

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Re: Siglent SSA3000X spectrum analyzers
« Reply #782 on: August 26, 2018, 10:53:30 pm »
Regarding Reflection Measurement and EasySpectrum software, am I missing something?  I can't seem to find any way to change the mode with EasySpectrum.  If the SSA is already configured manually for Ref. Meas., the EasySpectrum software doesn't quite seem to understand what is going on.  Has anyone else tried this?
 

Offline gperoni

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Re: Siglent SSA3000X spectrum analyzers
« Reply #783 on: September 06, 2018, 11:07:54 pm »
I used a 60mm fan from noctua. That I now regret, since that I believe my unit might have its power measurements off by 5 dBm... (both a PLL and a Siglent SDG give off signals at different levels than what read from the unit).

I can't find any information about calibration for this Siglent SA? In my case it seems like the auto calibration option when enabled brings the signal power from 5dB below the actual value to 5 dB above it... meh.
« Last Edit: September 07, 2018, 12:03:45 am by gperoni »
 

Offline tv84

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Re: Siglent SSA3000X spectrum analyzers
« Reply #784 on: September 06, 2018, 11:27:33 pm »
Very good fans:

https://noctua.at/en/products/fan

I have plenty of them... (don't know if overkill...)
 

Offline nihtila

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Re: Siglent SSA3000X spectrum analyzers
« Reply #785 on: September 18, 2018, 08:21:38 pm »
I am considering buying my first SA in the near future to expand my projects and understanding towards the RF space. If I do decide to go that road, SSA3021X seems like a strong candidate at the moment. I have checked RF explorers and such lower cost solutions to start with but feel I might regret it later, considering these low-cost 'proper' bench units.

How the price of these instruments have developed in the past? Siglent.eu have SSA3021X €1299 now, including TG, plus VAT. I'm in the UK so this means around £1400. Siglent.eu also seem to have 4% discount if paid by bank transfer. Has there been good prices and/or bundles elsewhere?

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Online tautech

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Re: Siglent SSA3000X spectrum analyzers
« Reply #786 on: September 19, 2018, 03:32:26 am »
I am considering buying my first SA in the near future to expand my projects and understanding towards the RF space. If I do decide to go that road, SSA3021X seems like a strong candidate at the moment. I have checked RF explorers and such lower cost solutions to start with but feel I might regret it later, considering these low-cost 'proper' bench units.

How the price of these instruments have developed in the past? Siglent.eu have SSA3021X €1299 now, including TG, plus VAT. I'm in the UK so this means around £1400. Siglent.eu also seem to have 4% discount if paid by bank transfer. Has there been good prices and/or bundles elsewhere?
Hi, Dunno why you'd want to overlook your local authorized agents ?  :-//
https://www.tester.co.uk/siglent-ssa3000x
https://labtronix.co.uk/drupal/shop/analysers/ssa3021x

Initially the SSA3000X models didn't come with TG option free as they do now, so it was effectively a price reduction by adding it into the unit.
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Offline nihtila

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Re: Siglent SSA3000X spectrum analyzers
« Reply #787 on: September 19, 2018, 07:33:04 pm »
I ignored Tester simply because it is more expensive. If I do all research myself and do not need actual service or help from the store, I am not willing to pay much premium. But a little bit for a local shop. I will definitely use Labtronix if I decide to buy. I am just still trying to understand my requirements in the near future and the differences between SSA3021X and SVA1015X. So maybe I will need help from a store after all :>
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Online tautech

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Re: Siglent SSA3000X spectrum analyzers
« Reply #788 on: September 19, 2018, 07:45:00 pm »
I ignored Tester simply because it is more expensive. If I do all research myself and do not need actual service or help from the store, I am not willing to pay much premium. But a little bit for a local shop. I will definitely use Labtronix if I decide to buy. I am just still trying to understand my requirements in the near future and the differences between SSA3021X and SVA1015X. So maybe I will need help from a store after all :>
If you don't need the 2.1 GHz (or 3.2 GHz liberated) BW then the SVA is the better choice.
I have and use SSA3032X and SVA1015X and I could only have one it would be the SVA as it is more versatile.
In this project I used both but mainly SVA as it didn't need a directional coupler:
http://www.eevblog.com/forum/rf-microwave/antenna-project-log/

I think I've written it up well enough for most to follow.  :)
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Offline videobruce

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Re: Siglent SSA3000X spectrum analyzers
« Reply #789 on: September 28, 2018, 07:00:32 am »
Has this finally fixed that RBW/VBW manual adjustment problem the keeps slowing down manually set speed speeds??  ???
No, of course not. Bad set of priorities.   :--
 

Offline dazz1

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Re: Siglent SSA3000X spectrum analyzers
« Reply #790 on: September 29, 2018, 07:29:53 am »
I used a 60mm fan from noctua.

Which model did you use??  Noctua list 4 at 60mm.

That I now regret, since that I believe my unit might have its power measurements off by 5 dBm...

I can't see how swapping a fan could affect calibration.
 

Online tautech

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Re: Siglent SSA3000X spectrum analyzers
« Reply #791 on: October 19, 2018, 06:32:42 pm »
There's a few mentions and links in this thread to HP's AN150 and 3 I found all have busted links.

But of course it's now available from a KS link:  :phew:
http://literature.cdn.keysight.com/litweb/pdf/5952-0292.pdf
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Online tautech

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Re: Siglent SSA3000X spectrum analyzers
« Reply #792 on: November 19, 2018, 08:00:06 pm »
New SSA3000X firmware.

Version 1.2.9.2a
~7.5 MB

https://www.siglentamerica.com/download/7669/

Changelog
1. This firmware must be upgraded from V1.2.8.1 or later.
If your SSA3000X has an earlier version, please update to V1.2.8.1 first and then proceed to update to the latest version.
2. Add trigger slope in Video Trigger
3. Optimize Trace Math, and SCPI command
4. Optimize the noise during Demod in zero span
5. Optimize the screen text display
6. Optimize the Auto Tune
7. Optimize the log scale in CSV file
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Offline tv84

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Re: Siglent SSA3000X spectrum analyzers
« Reply #793 on: November 20, 2018, 07:37:24 am »
v1.2.9.2a

Code: [Select]
File Header Size: 00000070
00000000 - File Checksum: C6D2CA2A [00000004-0072EEFA] (with only the File Header decrypted)  CKSM OK
00000004 - File Size: 0072EE8B (without 0x70 bytes of the File Header)
0000000C - Product_ID: 11201
00000026 - Vendor/Brand: SIGLENT
0000003A - USB Host Controller: ISP1763
****************************************************
Decrypting the 0x2800 and 0x1400 blocks...
Reversing file...
XORing with 0xFF (incrementing pattern)...
XORing with 0xFF from 0x00397746 until 0x0072EE8A
****************************************************
00000000 --- Section Checksum: C488E8D3
00000004 --- Section Size: 0072EE57 [00000034-0072EE8A]  CKSM OK
00000008 --- Section # 00000007
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Disk Entries: 29   Total Entries: 29   Directory Size: 2539 bytes  [0072E48A-0072EE74]
****************************************************
  File Processed OK
 

Offline videobruce

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Failed flashes
« Reply #794 on: February 18, 2019, 08:10:21 am »
There have been numerous reports in the other Siglent thread about failed flashing with this F/W. One user had to send his unit back ti Siglent to be flashed.
I'm surprised there aren't any comments either way here.

Separately, on Siglents website, their date shows "Release Date 02.08.19" which is almost three months later from  the above posts. Was there more than one version of this "a" ???
« Last Edit: February 18, 2019, 08:17:20 am by videobruce »
 

Offline tv84

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Re: Failed flashes
« Reply #795 on: February 18, 2019, 08:25:21 am »
There have been numerous reports in the other Siglent thread about failed flashing with this F/W. One user had to send his unit back ti Siglent to be flashed.
I'm surprised there aren't any comments either way here.

Separately, on Siglents website, their date shows "Release Date 02.08.19" which is almost three months later from  the above posts. Was there more than one version of this "a" ???

The .ADS I have with Sep 25th 2018 date has CRC32 = 0x5696A24D

Everytime you flash an image that replaces bootloader there's a certain risk (due to NAND errors). I'm not aware of those fails that you refer to but I think they  have nothing to do with this version specifically.
 
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Offline videobruce

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Re: Siglent SSA3000X spectrum analyzers
« Reply #796 on: February 18, 2019, 08:54:13 am »
Yes, I did notice that Sept. date.
There were at least three starting Jan 4th, post 586. I thought there were more, but it was regarding moding. It just seem very odd, three in a row.
« Last Edit: February 18, 2019, 09:02:44 am by videobruce »
 

Offline tv84

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Re: Siglent SSA3000X spectrum analyzers
« Reply #797 on: February 18, 2019, 09:17:48 am »
Yes, I did notice that Sept. date.
There were at least three starting Jan 4th, post 586. I thought there were more, but it was regarding moding. It just seem very odd, three in a row.

As you, I also find it curious. Maybe (just maybe) they suspected that the fails could be related to the upgrade and removed it temporarily...
 

Offline videobruce

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Re: Siglent SSA3000X spectrum analyzers
« Reply #798 on: February 24, 2019, 02:53:00 am »
1. Changing RBW and/or VBW settings (in manual mode) changes sweep speeds. Everytime one adjusts either setting the sweep speed slows down one step. This continues to happen even if you return the setting to where it was. The sweep speed keeps slowing. I never encountered this before and it is REAL annoying. (see below)
2. The 'standby mode' is a power hog by today's standards. Five watts running 24/7 shouldn't be acceptable anymore. That's 1/6th of the operational current (28-29 watts). I assume this has wake on LAN or similar? Fine, but does it have to be that much of a hog? How about a option to disable and 'wake' mode to get the draw down below 1 watt (EPA standard)? At least that would be a somewhat quick fix, assuming it can be done thru the firmware.

Setup conditions for #1 (easy to duplicate):
1. Place the RBW, VBW & Sweep settings all in manual mode. Set the two bandwidths to a middle setting. Settings for the attenuator or units shouldn't matter. No signal is required.
2. Change the Sweep to the fastest setting (usually 24ms)
3. Set the frequency range to whatever you want[/b], the full bandwidth is fine though I never have a need for that. My ranges are usually between 50 & 500 Mhz.
4. Go to the BW page and start changing either of the two adjustments paying attention to the sweep speed. You can use either the 'jog' dial or the up/down buttons. You will see it drop to the next slower speed.
5. Now, here where it gets more interesting, return to the previous setting. Note the sweep speed still slowing instead of returning to where it was.Everytime you make any adjustment to either the RBW or the VBW in either direction the sweep slows down to the next fixed setting forcing one to return to the sweep page and crank to back to the fastest setting allowed. Trying to get a respectable display is a real chore jumping back and forth between BW & Sweep.
I would love to know what will it take to get this fixed??

Yes, #2 is not a necessary all F/W, but at least modify the case with the addition of a mechanical power switch on the rear like others have.
« Last Edit: February 24, 2019, 02:58:24 am by videobruce »
 


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