The oem probe should behave the same.
As Thomas already mentioned in the video the +/-2ns jitter is normal due to the 500Mhz sampling frequency of the digital acquisition.
And of course you will see this jitter on all analog channels if trigger on a digital channel.
@Thomas
I believe your divider is overcompensated. In the video you got -16ns skew a about 4ns risetime, now at 13ns risetime it is only -8ns skew.
The skew should be independent of risetime at approximatly -4ns. This value is due to the missing coax extension between adapter and pods on the oem probe.
It can be eleminated by deskew setting of digital inputs.
edit:
@tubularnut
Just saw your reply. Seems like you also have -4ns with the oem probe. How long was the coax from tee to C1 input?
The oem probe should behave the same.
As Thomas already mentioned in the video the +/-2ns jitter is normal due to the 500Mhz sampling frequency of the digital acquisition.
And of course you will see this jitter on all analog channels if trigger on a digital channel.
@Thomas
I believe your divider is overcompensated. In the video you got -16ns skew a about 4ns risetime, now at 13ns risetime it is only -8ns skew.
The skew should be independent of risetime at approximatly -4ns. This value is due to the missing coax extension between adapter and pods on the oem probe.
It can be eleminated by deskew setting of digital inputs.
edit:
@tubularnut
Just saw your reply. Seems like you also have -4ns with the oem probe. How long was the coax from tee to C1 input?There is also jitter among the digital channels, I am not an expert and I assume the digital channel acquisition is serialized, so actual sample rate to determine possible jitter should be 500MSa/s divided by 16 (number of channels) or 50 nanoseconds? I don't have the scope anymore to test, but it is what I observed once and I tried to compare it to higher end Agilent Logic Analyzers with 2GSa/s or more and still can see the jitter.
As I said, I am not an expert and just curious to see if my assumptions are correct. I would appreciate any feedback from the gurus on this forum.
There is also jitter among the digital channels, I am not an expert and I assume the digital channel acquisition is serialized, so actual sample rate to determine possible jitter should be 500MSa/s divided by 16 (number of channels) or 50 nanoseconds? I don't have the scope anymore to test, but it is what I observed once and I tried to compare it to higher end Agilent Logic Analyzers with 2GSa/s or more and still can see the jitter.
As I said, I am not an expert and just curious to see if my assumptions are correct. I would appreciate any feedback from the gurus on this forum.
...No, there is no internal jitter..
I noticed that the Siglent models appear virtually identical to the Teledyne LeCroy T3DSO2000A series (whilst other Siglent oscilloscopes appear identical to BK Precision oscilloscopes). What is the relationship between Teledyne LeCroy and Siglent?
I promised to show example from MSOX3000T from Keysight:
Faster sampling on digital (1.25 GSa/s as opposed to 500MSa/s) but same phenomenon. +-800ps uncertainty interval.
>Quote from: Michael YYZ on Today at 18:15:13I noticed that the Siglent models appear virtually identical to the Teledyne LeCroy T3DSO2000A series (whilst other Siglent oscilloscopes appear identical to BK Precision oscilloscopes).What is the relationship between Teledyne LeCroy and Siglent?
Thank you, tautech! That’s very interesting to know!!!
Hence would it be fair to say that buying a Siglent SDS2000X Plus machine would get us similar features to those of a T3DSO2000A machine, comparable hardware performance and build quality, but at a much cheaper price?
If yes, life is beautiful!
So the BK Precision oscilloscopes are in fact Siglent machines, and not the other way around... Nice!
At one time firmware in some Siglent rebrands was better than Siglents but that was many years ago and AFAIK today Siglent releases firmware more frequently than their rebrands do.
Generally Siglent pricing is better than their rebrands as they are the OEM however some parts of the world have rebrand marketing agreements where you can't buy Siglents locally.....USSR I believe is such an area but there are marketing deals all over the place and one is SDS3000 and its later version SDS3000X for which LeCroy have all western marketing rights.
BTW, dive into your profile and turn WYSIWYG to OFF then you get a better reply structure to work with when you Quote someone.
That's amazing the scopes look nearly identical, except the price of the LeCroy is two times higher than the Siglent.
Wonder what the differences are, other than the name & Logo?
LeCroy T3DSO2354A $6,003.00
Siglent SDS2354X Plus $2,999.00
If I understand correctly the responses above, the LeCroy, BKP, etc. units are rebranded OEM Siglents. So virtually similar hardware for all. The main differences would be variations in the firmware, the nameplate and, of course, the price.
That's amazing the scopes look nearly identical, except the price of the LeCroy is two times higher than the Siglent.
Wonder what the differences are, other than the name & Logo?
LeCroy T3DSO2354A $6,003.00
Siglent SDS2354X Plus $2,999.00
If I understand correctly the responses above, the LeCroy, BKP, etc. units are rebranded OEM Siglents. So virtually similar hardware for all. The main differences would be variations in the firmware, the nameplate and, of course, the price.If any at all.
When you know who the OEM is you can check their FW versions against rebranded versions.
https://int.siglent.com/download/firmwares/?ProId=53
One change for sure, to remove the ‘Siglent’ name from the display graphics.
Hi
From yesterday I am an SDS2104x Plus owner . I wonder how I will find the codes to enable the option bundle, according to the siglent promo? I know that is active until 31 Mar 2021.
I have no papers with codes included in the probe box ... but YES!!! the bundle is allready activated. You are right .
Is this normal?
Hello there,
forum newbie first time posting
After spending days of reading through all the SDS2000X Plus related threads on this forum, I got myself an SDS2104X+ as an upgrade to my old Rigol DS2072A. The main reasons for this purchase were the 4 channels and the "LeCroy-like" UI of the Siglent scope.
Having played around with the new scope for quite a while, I am pretty impressed of the functionality you get for the money (not to mention the upgrade capabilities...), so the Rigol went straight into the bay.New stock SDS2104X Plus SN# range SDS2PDDD4R1*** are somewhat quieter than earlier units and it seems a slower fan has now been fitted.
Earlier Plus units were louder than SDS5000X once their smart fan had kicked back after boot but now they're about equal for fan noise.
My unit's SN is in the range tautech mentioned above but it still has the same fan equipped (ADDA AD0912DS-A70GL). Although it is no comparison to the screaming fan in the Rigol scope, I am thinking about replacing the stock fan with a more silent one (e.g. Noctua NF-A9 FLX), because of some annoying low frequency noise.
Has anyone already replaced the stock fan and can share some experience?
What about the unpopulated 4-pin fan connector?
Thanks a lot!