Siglent SDS800X HD 12 bit DSO's

[tautech]

Something else that also applies to the SDS800X HD:
I never needed it, so I never noticed it.
But yesterday evening I wanted to reset the SDS3034X HD to the default state.
Where would you find this function in the menu?
I would have expected to find it in the utility menu, but that's not the case.
The function can be found (for both scopes) in the acquire menu....
That seems illogical to me, I have to say.
If I see an item “Default” in the acquire menu, I would think that I can use it to set the acquisition to default and not the whole scope.
That's why I would have expected this function in the utility menu.

Me too.

Save/Recall Secure Erase and green front panel Default should delete all previous user settings and return to factory settings.....unless a User Default has been set. < reset to Factory Default.

[gf]

Something interesting about the SDS800x HD is that the Time Base is in the time domain is separate from the Frequency Domain Time Base (FFT). This is only seen in the top models of class "A" manufacturers. Siglent has "arrived there"...
This is very interesting for the analysis of low amplitude RF signals.
I have verified, through articles and images, that the SDS1204X the two time bases are linked. To "see" the FFT, you need to multiply the time base in time domais by 1000, to be able to see the well-defined FTT ranges. In the SDS800X HD, it is separate. Including numerically marking the FFT peaks, and being able to edit which ones should appear in the "Peak Table" is exceptional.

If anyone can, please clarify whether other models od Siglent above the SDS800X HD have this possibility of having separate time bases.

The only "separate timebase" which comes into my mind is the timbase of a zoom window, because a zoom window has its own time/div. Can you explain where else you see "separate time bases"? The main time base (and the derived sample rate and record length) applies to both, time and frequency domain. You cannot set these parameters separately for time and frequency domain.

Note that the time/div value is irrelevant for the FFT anyway. What matters for the FFT are sample rate and number of points. However, with automatic memory management, you cannot set time/div, sample rate and record length independently, but they are linked. IOW, if you want to set a sample rate and record length suitable for a "nice" FFT, then you can only do that by adjusting time/div.

[nanopico]

With a bit of luck I'll get mine too. Next week otherwise.

The SDS804X HD is in stock at the German distributor Batronix. Just in time to compete with Magnova 
The oscilloscope is also available in the BatterFly store.

[Antonio90]

Well, then I'll most likely have it on monday. I ordered through a spanish distributor, Isotest.

[BRZ.tech]

Something interesting about the SDS800x HD is that the Time Base is in the time domain is separate from the Frequency Domain Time Base (FFT). This is only seen in the top models of class "A" manufacturers. Siglent has "arrived there"...
This is very interesting for the analysis of low amplitude RF signals.
I have verified, through articles and images, that the SDS1204X the two time bases are linked. To "see" the FFT, you need to multiply the time base in time domais by 1000, to be able to see the well-defined FTT ranges. In the SDS800X HD, it is separate. Including numerically marking the FFT peaks, and being able to edit which ones should appear in the "Peak Table" is exceptional.

If anyone can, please clarify whether other models od Siglent above the SDS800X HD have this possibility of having separate time bases.

The only "separate timebase" which comes into my mind is the timbase of a zoom window, because a zoom window has its own time/div. Can you explain where else you see "separate time bases"? The main time base (and the derived sample rate and record length) applies to both, time and frequency domain. You cannot set these parameters separately for time and frequency domain.

Note that the time/div value is irrelevant for the FFT anyway. What matters for the FFT are sample rate and number of points. However, with automatic memory management, you cannot set time/div, sample rate and record length independently, but they are linked. IOW, if you want to set a sample rate and record length suitable for a "nice" FFT, then you can only do that by adjusting time/div.

hi,
@gf
Thank you for commenting.
It may be that I didn't express myself well on the subject. I looked at this IMG from the @Performa01 manual, and noticed that the FTT time signal is superimposed with a sine wave. And in part it surpassed the compressed signal.
That's what I meant to say, with the wrong words.
You understood?

[gf]

It may be that I didn't express myself well on the subject. I looked at this IMG from the @Performa01 manual, and noticed that the FTT time signal is superimposed with a sine wave. And in part it surpassed the compressed signal.
That's what I meant to say, with the wrong words.
You understood?

It's exactly what I did presume: @Performa01 did use a zoom window to display the sine wave @10ns/div, while the main timebase was set to 500µs/div in order to acquire long records.

[martinot]

Just put an order for a SDS804X HD scope.  Seems out of stock in Europe, but hope I will get delivery in a month or so.

Just got the scope today.

Discussion about clock time accuracy, anyone who has any open NTP-server IP to recommend for the scope?

[BillyO]

Me too...

[mawyatt]

Just put an order for a SDS804X HD scope.  Seems out of stock in Europe, but hope I will get delivery in a month or so.

Just got the scope today.

Discussion about clock time accuracy, anyone who has any open NTP-server IP to recommend for the scope?

We use 129.6.15.26 from here in Florida USA, believe site is in Maryland.

Best,

[ebastler]

anyone who has any open NTP-server IP to recommend for the scope?

Take your pick, e.g. here -- includes a few servers in Sweden:
https://wpollock.com/AUnix2/NTPstratum1PublicServers.htm

[atrt7]

I got my scope today! Very excited to upgrade from my Fluke Combiscope.

[BillyO]

Enjoying delving into my new scope.

Have a question though, and this might apply to all the Siglent scopes/etc..

What is the largest USB drive one can use and is this mentioned anywhere in the FM?  I have a 4GB one that works, but 64GB and larger ones do not.  The 4GB one is on it's last legs.

[2N3055]

Enjoying delving into my new scope.

Have a question though, and this might apply to all the Siglent scopes/etc..

What is the largest USB drive one can use and is this mentioned anywhere in the FM?  I have a 4GB one that works, but 64GB and larger ones do not.  The 4GB one is on it's last legs.

I use SanDisk Extreme USB 3.0 32GB for my scopes. Make sure FS is FAT32

chkdsk f:

The type of the file system is FAT32.
Access is denied.

Volume ESD-USB created 21.3.2024. 16:30
Volume Serial Number is DCA1-BD67
Windows is verifying files and folders...
File and folder verification is complete.

Windows has scanned the file system and found no problems.
No further action is required.
   30 623 744 KB total disk space.
           32 KB in 2 hidden files.
        1 488 KB in 89 folders.
    9 641 264 KB in 963 files.
   20 980 944 KB are available.

       16 384 bytes in each allocation unit.
    1 913 984 total allocation units on disk.
    1 311 309 allocation units available on disk.

[KungFuJosh]

These have been compatible with all my TE: https://www.amazon.com/gp/product/B09FFK1QLR

[aeberbach]

I really like my SDS804X HD, happy I waited before jumping to 12-bit. I would have liked a VESA mount like the Rigols have though.... so I made one.



There are a lot of pictures, description and STL files here:

https://www.printables.com/model/863752-siglent-sds8xx-vesa-mount

If you don't have a printer you could use my shared project on PCBWay in which case I may get a small commission:

https://www.pcbway.com/project/shareproject/VESA_mount_for_Siglent_SDS8xx_oscilloscope_5eb70f30.html

But in both places you can download the files and get them printed anywhere you like. I hope you find it useful.

[Harrow]

I really like my SDS804X HD, happy I waited before jumping to 12-bit. I would have liked a VESA mount like the Rigols have though.... so I made one.

For a moment, I thought you'd bought two! 

[tautech]

Enjoying delving into my new scope.

Have a question though, and this might apply to all the Siglent scopes/etc..

What is the largest USB drive one can use and is this mentioned anywhere in the FM?  I have a 4GB one that works, but 64GB and larger ones do not.  The 4GB one is on it's last legs.

The generic answer is 8GB FAT32 4k clusters that will work with any Siglent device but particularly these specs in the case/need for USB recovery should it ever be required.......ppls seem to like to telnet into the device OS these days for whatever reason.   

[bateau020]

FYI, I managed to get the SDS800X-HD working with non siglent AWGs for the bode plots.
The low level communication changed, so I had to do some modifications. See https://www.eevblog.com/forum/testgear/siglent-sds1104x-e-and-sds1204x-e-bode-plot-with-non-siglent-awg/msg5479096/#msg5479096

[ballsystemlord]

I've searched the forum and I can't really find an answer to this, so I'm asking here.

The SDS804X's datasheet gives input specs with respect to a 50ohm input. That is, the ENOB, Rise time, and Noise floor. See the datasheet pages 10 and 11:
https://www.tequipment.net/Siglent/SDS804X-HD/Digital-Oscilloscopes/

By admission in the datasheet, they have no 50ohm input.

So, are these specs deceptive? (EDIT: To avoid confusion, please see my next post below.)

Aside from an adapter, what would I have to do to get a 50ohm input? Like, all of the probes I have and they supply with the entire SDS800 series are 1Mohm input probes.

Thanks!

[BillyO]

Well, no.  They specifically tell you there is no internal 50 ohm termination and that you have to use an adapter.  No deception here.

Also, measuring WRT a 50 ohm cable termination is an industry standard practice.  They represent best possible performance.

To get 50 ohms you need a 50 ohm feed-through adapter fed via a 50 ohm intrinsic impedance cable also being fed at the other end via a 50 ohm termination.  So, in essence a properly configured 50 ohm transmission line between the scope and the signal source.  Or in the case where there is no signal, just a 50 ohm terminator.

[ballsystemlord]

Well, no.  They specifically tell you there is no internal 50 ohm termination and that you have to use an adapter.  No deception here.

I meant that if the input impedance is 1Mohm, then specifying 50ohm impedance was possibly deceptive as that doesn't reflect the reality of the scope's input.

Thanks for the explanation. I understand now.

[BillyO]

I meant that if the input impedance is 1Mohm, then specifying 50ohm impedance was possibly deceptive as that doesn't reflect the reality of the scope's input.

Ahh, okay.  Even using the supplied probes into the high impedance input will provide much of the absolute maximum rated performance.  Rise time might be a tad slower, noise might be a tad higher (of course this depends on environment and probing technique), etc..  And you could even upgrade or downgrade your probes.  It's that dependence on variables outside the manufacturers control that makes it prudent to not use the supplied passive probes to base the units performance testing on.  So they specify a controlled configuration that shows what the scope can do under more or less ideal conditions.

[radiohomebrewer2000]

I used a BNC Tee Adapter that is female male female.
You connect the male end of the Tee to a channel on your scope.
Plug in a 50-ohm termination into one of the female of the Tee.
Then plug in a 50-ohm coax cable with BNC connector from your source signal.  Personally, I use RG8X coax which is 50-ohm coax.

You can think of the 50-ohm termination like a mini dummy load built into a connector since it is just a resistor inside.

However, if I have to run 100 feet of more of coax cable, then I prefer LMR240 or LMR400 Ultraflex which are both 50-ohm.  But not need for a few feet on the bench.  So, RG8X is good enough on the bench.

Some examples.

BNC Tee 50-ohm BMC female male female
https://www.pasternack.com/bnc-female-male-female-tee-adapter-pe9001-p.aspx

BNC 50-ohm termination 1W
https://www.mouser.com/ProductDetail/Amphenol-RF/000-46650-51RFX?qs=VT5nbRQnyKsTBe5bYBx4xQ%3D%3D

If you need more power handling capability, consider making your own BNC 50-ohm termination using a resistor or 2 resistors in parallel.

However, I am afraid to fry my scope, so not sure if I should attenuate a signal by 30dB or 20dB.  So, I have a fixed attenuator for 30dB, 20dB, and 10dB.  But think that is probably another Beginner topic there...  But I think this is what the 10X probes do, but then they are not 50-ohm...

[BRZ.tech]

Hi,
The SDS800X HD does not have native HDMI Video Output.
I found this USB-HDMI-ADAPTER on Aliexpress, which can be plugged into a USB port.
Question: If you connect it to one of the USB ports on the SDS800X HD, will it locate the drive and make the Monitor work with an external HDMI input?
TKS.

[BillyO]

Hi,
The SDS800X HD does not have native HDMI Video Output.
I found this USB-HDMI-ADAPTER on Aliexpress, which can be plugged into a USB port.
Question: If you connect it to one of the USB ports on the SDS800X HD, will it locate the drive and make the Monitor work with an external HDMI input?
TKS.

Highly unlikely.  The OS would need support for this.