Now that it's apart, does anybody want me to take some more measurements?
On the other hand, as tempting as the thought about a shielding issue has been, by now I'm inclined to believe it's not the culprit after all. It would still be nice if you can do some more tests with that aluminum block - now that you have torn appart your instrument already...
QuoteNow that it's apart, does anybody want me to take some more measurements?
Yes, but RFDUK may be better placed to do the tests below as he has an xGHz analyser and should be able to repeat the earlier LO leakage tests but this time at CFs of 780 and 3120MHz.
One thing about our current frequency plan estimate is that it puts LO2 (3.120GHz) inside the range of the 3.2GHz analyser. Also, LO3 at 780MHz is inside the range of the analyser. So it would be interesting to see what happens to the frequency plan once the analyser gets tuned at or near to these frequencies. One option would be to shift IF1 up to about 4.17GHz. There may be enough bandwidth in the IF1 filter to allow this. Or maybe they sidestep IF2 slightly.
It looks like many peoples have more like audio experience than rf.
So instead of starting to insult 'peoples' Have you as a Siglent dealer, asked Siglent for a reaction on this issue ?
I talk here technical things what are my hobby and profession and what are interesting for me independent of if I some times sell some equipment or not. I'm much more interested about technical things than any kind of business. Not talking "sales"man.
Also this is good place to talk things what also are sure read by Siglent. Siglent RF designer engineer can answer here if he/she like.
It looks like many peoples have more like audio experience than rf.
So instead of starting to insult 'peoples' Have you as a Siglent dealer, asked Siglent for a reaction on this issue ?
I talk here technical things what are my hobby and profession and what are interesting for me independent of if I some times sell some equipment or not. I'm much more interested about technical things than any kind of business. Not talking "sales"man.
Also this is good place to talk things what also are sure read by Siglent. Siglent RF designer engineer can answer here if he/she like.All readers can be very sure Siglent are informed of this matter and are working on and watching developments.
They have indicated that they will inform us of their findings.....in what detail and when, only time will tell.
It is my view to leave them to fully investigate why spurs do not meet spec and not press them for fast and short answers.
It looks like many peoples have more like audio experience than rf.
So instead of starting to insult 'peoples' Have you as a Siglent dealer, asked Siglent for a reaction on this issue ?
I talk here technical things what are my hobby and profession and what are interesting for me independent of if I some times sell some equipment or not. I'm much more interested about technical things than any kind of business. Not talking "sales"man.
Also this is good place to talk things what also are sure read by Siglent. Siglent RF designer engineer can answer here if he/she like.All readers can be very sure Siglent are informed of this matter and are working on and watching developments.
They have indicated that they will inform us of their findings.....in what detail and when, only time will tell.
It is my view to leave them to fully investigate why spurs do not meet spec and not press them for fast and short answers.
I don't mean to be confrontational I really don't, but your representations are patronising in the extreme and I'm sure unhelpful to the Siglent brand. This is the second input you've made and the first was similarly unhelpful, although I resisted making a point of it.
I ordered the instrument almost 3 months ago. I've had two instruments delivered that fall well short of warranted specification. I've had zero feedback from Siglent or my supplier. I'm still on board with Batronix in the hope the problem will be explained to me, the remedial timescale outlined and an instrument delivered in a reasonable (to me) timeframe.
After nearly 3 months I'm not looking just for 'fast answers', I just want the instrument I paid for, cash drawn down on the day of order.
Coming from a Siglent representative, your views reflect a lack of commercial sensitivity to put it lightly.
I've patiently stuck with it because I believe the SSA3032X to perform well and offer good value.
It looks like many peoples have more like audio experience than rf.
So instead of starting to insult 'peoples' Have you as a Siglent dealer, asked Siglent for a reaction on this issue ?
I talk here technical things what are my hobby and profession and what are interesting for me independent of if I some times sell some equipment or not. I'm much more interested about technical things than any kind of business. Not talking "sales"man.
Also this is good place to talk things what also are sure read by Siglent. Siglent RF designer engineer can answer here if he/she like.All readers can be very sure Siglent are informed of this matter and are working on and watching developments.
They have indicated that they will inform us of their findings.....in what detail and when, only time will tell.
It is my view to leave them to fully investigate why spurs do not meet spec and not press them for fast and short answers.
I don't mean to be confrontational I really don't, but your representations are patronising in the extreme and I'm sure unhelpful to the Siglent brand. This is the second input you've made and the first was similarly unhelpful, although I resisted making a point of it.
I ordered the instrument almost 3 months ago. I've had two instruments delivered that fall well short of warranted specification. I've had zero feedback from Siglent or my supplier. I'm still on board with Batronix in the hope the problem will be explained to me, the remedial timescale outlined and an instrument delivered in a reasonable (to me) timeframe.
After nearly 3 months I'm not looking just for 'fast answers', I just want the instrument I paid for, cash drawn down on the day of order.
Coming from a Siglent representative, your views reflect a lack of commercial sensitivity to put it lightly.
I've patiently stuck with it because I believe the SSA3032X to perform well and offer good value.On 31 Dec (NZ time) when your 2nd SSA was shown to also not be within spec it was obvious there appeared to be a problem.
Until then it was appropriate that your local dealer deal with this issue and us just watch developments.
Since then, this has been risen up to be placed on Siglent's doorstep since which there has been two weekends lost also.
Unlike some of us enthusiasts, paid staff only work so many hours/week to deliver the answers you and us seek.
So for fear of you taking this the wrong way, this issue to Siglent (as far as we know) is only a few days old.
Please consider this ^.
They need time to explore the cause and report back via rf-loop and/or other Siglent dealers like myself whom are also present on EEVblog.
I'm sorry and understand that 3 months for you is frustrating and I hope we can have answers before this drags out much longer for you.
I just did the test with my brand new ssa.
Got a delta of 55,4 dB.
By the way... did your units come with a screen protector foil or not?
By the way... did your units come with a screen protector foil or not?
I've had two (faulty) instruments in the last several weeks, neither had a screen protector.
I've had two (faulty) instruments in the last several weeks, neither had a screen protector.
Do you have a correctly working unit in the meantime?
This is looking like the performance of a very poorly analyser.