The amount of leakage is continuous with the input frequency. At some frequency it will be low enough not to be seen visually but it will still be present which an FFT will show. At a lower frequency yet it will become indistinguishable from noise. Pick the right higher frequency and it will be +/- 2 pixels. Pick a higher one yet and it will be +/- 3 pixels.
If the filter was long enough, then the 130 MHz image would have been removed. The filter however is shorter than this because of both performance reasons and because the filter length subtracts from the usable record length at the ends where a full set of samples is not available to calculate it.
I want to come back to my question: if none of the signals in the electronic design, either the source, the intermediate signals in the signal path or the output signal has a frequency above the limit, then the higher frequencies can only come from interference, noise or higher harmonics.
Interference: Can this really go up to 100 MHz with a noticeable impact? Don't believe so.
Noise: Can this really go up to 100 MHz with a noticeable impact? Don't believe so.
Higher harmonics: Let's say we have a 100 MHz square wave. With a square wave at 100 MHz, the fundamental frequency is at 100 MHz, the 3rd harmonic is at 300 MHz, the 5th harmonic is at 500 Mhz. Doesn't the low-pass filter cut-out frequencies above 300 MHz? I believe it does!
If not, it is a design failure I would say, if a 100 MHz scope does not even handle a 100 MHz square wave (DS1104Z with 100 MHz BW, 250 MS/s per channel).
I want to come back to my question: if none of the signals in the electronic design, either the source, the intermediate signals in the signal path or the output signal has a frequency above the limit, then the higher frequencies can only come from interference, noise or higher harmonics.
Interference: Can this really go up to 100 MHz with a noticeable impact? Don't believe so.
Noise: Can this really go up to 100 MHz with a noticeable impact? Don't believe so.
Higher harmonics: Let's say we have a 100 MHz square wave. With a square wave at 100 MHz, the fundamental frequency is at 100 MHz, the 3rd harmonic is at 300 MHz, the 5th harmonic is at 500 Mhz. Doesn't the low-pass filter cut-out frequencies above 300 MHz? I believe it does!
If not, it is a design failure I would say, if a 100 MHz scope does not even handle a 100 MHz square wave (DS1104Z with 100 MHz BW, 250 MS/s per channel).You really don't have a clue, do you? Or are you deliberately trolling this forum?
The resistor jumper configuration for "Hardware Version" is different on DS1054Z compared to DS1104Z.
That number does not necessarily mean anything: many months have gone by since the DS1104Z launched so it is highly probable that Rigol has tweaked the PCB or BoM since then and DS1104Z manufactured more recently might be revision 01 as well.
Good summary! Yes, keeps everybody busy!
I will come with the big announcement at the right time
Good summary! Yes, keeps everybody busy!
I will come with the big announcement at the right time
And when you do, I expect you'll really start asking questions in earnest! And keep us even busier.
One good outcome of your deferring a decision was the arrival of the MSO2000 (not available when you started your quest for the Holy Grail), which pretty nicely balances out the 2-channel loss from the 1000Z to the 2000. For someone who (may) want to do embedded systems work at some point, it's a very nice combination.
And if you wait long enough, Siglent may improve the firmware implementation on the SDS2000 to the point where you could get 4 analog channels AND 8 digital channels... for a price in the same ballpark as the MSO2000. Though the hackability of the Rigols does give them a decided advantage.
EDIT: besides, when I prepared that retrospective, I thought we needed a break from the Hess/Marmad bout, that was in the 14th round.
Is the DS1000U series something Rigol only sell in China? I don't see reference to these models on other country's web sites.
Is the DS1000U series something Rigol only sell in China? I don't see reference to these models on other country's web sites.Like the DG1022U variant of Rigol's DG1022 function generator it seems to be primarily intended for domestic markets, although it (there appears to be only one model, the DS1072U) is available in Western countries from various Chinese shippers, such as this one, and there is an English manual on Rigol's US website.
It's hard to imagine why anyone would want one, though - it only has half the sample rate and half the memory of the now rather obsolete DS1000E series scopes, and costs about the same.
Thats great but where do you get ?
Thats great but where do you get ?
Thats great but where do you get ?
You could try www.batronix.com, The shipping costs to Israel would be €54.45 without VAT.
Thats great but where do you get ?
Hi,
I bought mine from Silcon Electroincs (www.silicon.cz). 294€ ex. VAT with free shipping within EU.
Excellent service, and very fast shipping - highly recommended.
BR Jonas
I also ordered the DS1054Z from Batronix a week ago. Unfortunately they were not in stock so I will have to wait at least another three weeks (according to their website). Bummer
Thats great but where do you get ?
Hi,
I bought mine from Silcon Electroincs (www.silicon.cz). 294€ ex. VAT with free shipping within EU.
Excellent service, and very fast shipping - highly recommended.
BR Jonas
The link is broken..
Yes i know about them but like you said they are out of stock
EDIT: besides, when I prepared that retrospective, I thought we needed a break from the Hess/Marmad bout, that was in the 14th round.
Most boring bout ever
Two guys typing furiously:
Off hand I can't think of another scope that even comes close in bang-per-buck for the same price?
...people don't feel comfortable with this mathematical concept though.
I also ordered the DS1054Z from Batronix a week ago. Unfortunately they were not in stock so I will have to wait at least another three weeks (according to their website). Bummer
At least one of the two (of the worst offenders) finally realizes it...
Unfortunately, this thread has already been thoroughly hosed, making it difficult for the typical person looking to buy one of these scopes to navigate through the muck.
Too bad we can't roll the clock back on this one to message #37 and start over, where Dave says the following....people don't feel comfortable with this mathematical concept though.