Siglent SSA3000X and SSA3000X-Plus Spectrum Analyzers

[IM3]

I would like to offer some constructive criticism.

I often see on this forum that the people who are very experienced on a topic give teasing responses. I don't understand the point of that.

For example, Tautech sends three replies in a row essentially saying that you need to search better, that you haven't done enough.He could have simply explained the hardware differences right away. He dit not help in any way but he had the answers looking for.

TV84 says for example that you need to read better through the large amount of text. I find that unfortunate. Personally, I always try to provide someone with a helpful answer and not belittle them.

Let me finish by saying that I appreciate the wealth of knowledge here, but it could sometimes be a bit more friendly.

[Martin72]

On the other hand, there are users who don't feel like reading in, but expect others to do so and to tell them the important points or, even better, to provide a complete summary.
That's not nice either, such an open display of laziness.

[2N3055]

I would like to offer some constructive criticism.

I often see on this forum that the people who are very experienced on a topic give teasing responses. I don't understand the point of that.

For example, Tautech sends three replies in a row essentially saying that you need to search better, that you haven't done enough.He could have simply explained the hardware differences right away. He dit not help in any way but he had the answers looking for.

TV84 says for example that you need to read better through the large amount of text. I find that unfortunate. Personally, I always try to provide someone with a helpful answer and not belittle them.

Let me finish by saying that I appreciate the wealth of knowledge here, but it could sometimes be a bit more friendly.

In this case let me offer you an insight to the other side:

Some of these are questions answered already hundreds of times.
It gets old to do due diligence for other people that are too lazy to do their own work and learning.

As for beginners that ask an honest question without knowing, they also need to be set on path of learning how to learn.
Reading documentation is very, very, important part of electronics.
Learning to do it is best as soon as possible.

OTOH, a person saying:" I read that this SA has this parameter and other one has something else, could please someone try to explain it to me what it means.." will generally be met with many people trying to help.

A certain amount of demonstrated homework done is prerequisite before asking for help with learning.
Nobody here is paid for support.
Tautech is from New Zealand. Any help he provides to the rest of the world is just his good will in his free time. Same with everybody else.

And, yes, people are also grumpy sometimes... We are all only humans..

[tv84]

TV84 says for example that you need to read better through the large amount of text. I find that unfortunate. Personally, I always try to provide someone with a helpful answer and not belittle them.

My comment was targeted to all the people that have been creating/adding to the keygen script. The info has been in the forum for quite awhile but, nonetheless, the errors remain.

OTOH, suggesting people should read more is a "helpful answer", in any case.  I know that because I also don't do it as much as I should.

[markus_jlrb]

Dears,

I'm wonder about the end of the trace, see attachment.
Any idea how to explain this noise increase?




Markus

[tv84]

Lack of calibration...

[IM3]

Dears,

I'm wonder about the end of the trace, see attachment.
Any idea how to explain this noise increase?

Maybe calibration (@tv84), but I think it's just the noise floor getting a little worse at the end of its range.

I included a few pictures to give more insight into how the analyzer behaves. I added carriers at different points to show the frequency response and again highlight the noise floor present.

You can see that the frequency response is fairly good for the carrier levels. However, the noise floor is climbing a little at the end.

[IM3]

For comparison, I added a screenshot of a Rohde & Schwarz FPL showing a similar frequency behavior at the end.

Normal operation would be to use a normalization function to get everything straight before doing a measurement.

[markus_jlrb]

The question was based on the fact that I did not notice such an increase
of noise at the end on my X-R device.

But tv84 could be right - missing calibration at the and especially as the device
was switched to a higher range without factory calibration, so my assumption.

Markus

[tautech]

I would like to offer some constructive criticism.

I often see on this forum that the people who are very experienced on a topic give teasing responses. I don't understand the point of that.

For example, Tautech sends three replies in a row essentially saying that you need to search better, that you haven't done enough.He could have simply explained the hardware differences right away. He dit not help in any way but he had the answers looking for.

TV84 says for example that you need to read better through the large amount of text. I find that unfortunate. Personally, I always try to provide someone with a helpful answer and not belittle them.

Let me finish by saying that I appreciate the wealth of knowledge here, but it could sometimes be a bit more friendly.

A bit of history helps.
First we must exclude SSA3000X models from this discussion.

SVA1015X was the first and only model in the next generation of these models with touch/mouse and webserver capability.
I don't remember the order of which came next other than 2.1/3.2 GHz models in SVA1000X/SSA3000X Plus models.
This is when minds began to wonder........do SSA Plus and SVA models share HW ? 

Soon it was discovered they do....but there are 2 HW variants, 1.5 and 2.1/3.2 GHz....very evident with their different DANL specs.

Then we got another test to decipher......the later SSA3000X-R models that are almost indistinguishable.....except for one fact, weight !
Never have I seen different code in the same HW weigh more. 


In closing, I have never had all the models dismantled to inspect them in any detail, therefore have only gleaned all the above from datasheets....something any of you could've done as well. 

[Martin72]

I think I asked this question before (and probably got an answer):
Since the models are a bit old after all (2018), are newer versions on the horizon ?

[tautech]

I think I asked this question before (and probably got an answer):
Since the models are a bit old after all (2018), are newer versions on the horizon ?

Nothing visible other than the current models to 26.5 GHz.