Siglent SDS800X HD 12 bit DSO's

[Furna]

Tried already to switch off/ disconnect almost evrything in the room, including the PC.

Doesn't have to be the same room. I've spent insane amounts of time searching for the causes of spikes or parasitics that turned out to be power supplies on the other side of my house.

I guess my daugther can give me difficult time if I power-off the Internet router on friday night because it is powered by a small white brick ... or the NAS

I guess I have to live with that noise ...

Have you tried my tip?

Really a very good advice!

[Martin72]

You can hide the ch1 for better visibility.

[Furna]

You can hide the ch1 for better visibility.

... with Measurment bind to F1



... and with Ch1 hidden

[pdenisowski]

I've spent insane amounts of time searching for the causes of spikes or parasitics that turned out to be power supplies on the other side of my house.

Wait until they are in a neighbor's house   I don't have to break out my "professional" interference hunting gear to determine which of my neighbors have noisy electronics - I can simply rotate my attic-mounted ham radio antenna array and listen to the changing noise level.

But more on topic: there really aren't good remedies to noise from household / consumer devices other than turning them off.  In the "old days" there were all kinds of steps to you could take (filters, bypass caps, etc.) to try to reduce or remove the offending emissions, but this is not nearly as easy with more modern electronics.

[tautech]

I've spent insane amounts of time searching for the causes of spikes or parasitics that turned out to be power supplies on the other side of my house.

Wait until they are in a neighbor's house   I don't have to break out my "professional" interference hunting gear to determine which of my neighbors have noisy electronics - I can simply rotate my attic-mounted ham radio antenna array and listen to the changing noise level.

But more on topic: there really aren't good remedies to noise from household / consumer devices other than turning them off.  In the "old days" there were all kinds of steps to you could take (filters, bypass caps, etc.) to try to reduce or remove the offending emissions, but this is not nearly as easy with more modern electronics.

One of these has always worked well for quieting emissions....and of many types too. 

[rpschultz13]

New DSO user here, so bear with me. Got a new SDS804 Friday. Unpacked, updated firmware, calibrated probes, followed the SETUP GUIDE in post 1608, etc.

Question. How important is it to be connected to a LAN? I don't think it has wifi, so an ethernet cable from a router? Is this mainly for the time stamp?

[KungFuJosh]

Question. How important is it to be connected to a LAN? I don't think it has wifi, so an ethernet cable from a router? Is this mainly for the time stamp?

You can use it for NTP server if you care about the clock. But the main things with the ethernet is remote control via the built-in web server, and you can also use it to control an SDG series AWG via the network if both are connected.

[gitm]

Tried already to switch off/ disconnect almost evrything in the room, including the PC.

Doesn't have to be the same room. I've spent insane amounts of time searching for the causes of spikes or parasitics that turned out to be power supplies on the other side of my house.

I guess my daugther can give me difficult time if I power-off the Internet router on friday night because it is powered by a small white brick ... or the NAS

I guess I have to live with that noise ...

Have you tried my tip?

Really a very good advice!

LOL, here’s the FFT of the Siglent 824X's probe sitting on my dinning room table from 0 to 110 MHz with nothing attached to the probe.  Marker 1 at 1.098 MHz is an AM radio station and everything from 88 Mhz to 108 MHz are FM radio stations, markers 3 through 10.

I was testing an amplifier for small signals and couldn’t understand why the first opamp was not stable, oscillating with a frequency of about 1.1 MHz.  That is until it occurred to me to get out the TinySA Ultra, saw the spectrum and tuned it to the frequency and demodulate it.  It was a religious AM radio broadcast.  It took me half a day to finally realize this.

I now test using a shielded box.

[ebastler]

Question. How important is it to be connected to a LAN? I don't think it has wifi, so an ethernet cable from a router? Is this mainly for the time stamp?

You can use it for NTP server if you care about the clock. But the main things with the ethernet is remote control via the built-in web server, and you can also use it to control an SDG series AWG via the network if both are connected.

"Remote control via the web server" may sound like an exotic use case, but that also includes the most convenient way (for me) to get scope screenshots to your computer. I typically want to paste them into a Word document where I am taking notes, hence have the computer nearby. Grabbing screenshots directly via the computer and immediately pasting them into the document makes for a smooth workflow and avoids mixups.

If your router is too far away to make it practical to run a network cable, you can use one of those small "single Ethernet port to WiFi" bridges, e.g. the TP-Link TL-WR802N. You can even power it from the USB port on the back of the scope, and attach it to the scope with Velcro or such, to keep the scope as a self-contained unit. (Although with two short cables, USB power and Ethernet, dangling around in the back.)   

[rpschultz13]

Question. How important is it to be connected to a LAN? I don't think it has wifi, so an ethernet cable from a router? Is this mainly for the time stamp?

You can use it for NTP server if you care about the clock. But the main things with the ethernet is remote control via the built-in web server, and you can also use it to control an SDG series AWG via the network if both are connected.

"Remote control via the web server" may sound like an exotic use case, but that also includes the most convenient way (for me) to get scope screenshots to your computer. I typically want to paste them into a Word document where I am taking notes, hence have the computer nearby. Grabbing screenshots directly via the computer and immediately pasting them into the document makes for a smooth workflow and avoids mixups.

If your router is too far away to make it practical to run a network cable, you can use one of those small "single Ethernet port to WiFi" bridges, e.g. the TP-Link TL-WR802N. You can even power it from the USB port on the back of the scope, and attach it to the scope with Velcro or such, to keep the scope as a self-contained unit. (Although with two short cables, USB power and Ethernet, dangling around in the back.) 

I simply have used a USB stick so far. I just installed SigScopeLab. Hoping that will allow me to grab screen shots easier than a USB stick.

[2N3055]

Question. How important is it to be connected to a LAN? I don't think it has wifi, so an ethernet cable from a router? Is this mainly for the time stamp?

You can use it for NTP server if you care about the clock. But the main things with the ethernet is remote control via the built-in web server, and you can also use it to control an SDG series AWG via the network if both are connected.

"Remote control via the web server" may sound like an exotic use case, but that also includes the most convenient way (for me) to get scope screenshots to your computer. I typically want to paste them into a Word document where I am taking notes, hence have the computer nearby. Grabbing screenshots directly via the computer and immediately pasting them into the document makes for a smooth workflow and avoids mixups.

If your router is too far away to make it practical to run a network cable, you can use one of those small "single Ethernet port to WiFi" bridges, e.g. the TP-Link TL-WR802N. You can even power it from the USB port on the back of the scope, and attach it to the scope with Velcro or such, to keep the scope as a self-contained unit. (Although with two short cables, USB power and Ethernet, dangling around in the back.) 

I simply have used a USB stick so far. I just installed SigScopeLab. Hoping that will allow me to grab screen shots easier than a USB stick.

You don't need any applications installed.

Connect scope to the network.

Scope has web server internal to it. You just connect to scope's IP address with browser.
There you have live remote control and screenshot with single button click.

You also have SMB client (and server) in a scope. That means that if you make a network share on you PC, you can connect scope to it. So when you want to save something, you can chose to save there, directly to share.
So if you press "Save" button on scope it gets directly saved to your network share.

[Zucca]

I guess my daugther can give me difficult time if I power-off the Internet router on friday night because it is powered by a small white brick ... or the NAS

Wait until you are alone at home...

Turn off the mains home breakers one by one and check what the noise does.
If you are lucky you could at least found which breaker/home section is EMI polluting your lab.
Also be prepared to change room and travel with the scope, playing Ghostbusters.

Battery powered scopes in this situation are priceless: you could power the entire home off and have still a running scope to check noise...

[ttelectronic]

Hmm 

[EvgenyG]

Hmm 

Not bad! I wish they included some information about how you adjust things, like timebase for the hw frequency counter. Mine is a little bit (70hz) off at 10Mhz according to my GPSDO. It is within the spec, but if I could adjust it, that would be great.

[Zucca]

Hmm 

Power Supply Module pinout (page 55)



make a battery hack would not be that hard.
2 LiIon in series pack (risky... 8.4V max, may charge only until 7.6V [3.8V/cell]) and a 15Vdc step up for the FAN.

[Zucca]

Hmm 

Service manual without schematics are always like a punch in my balls.

[Zucca]

Hmm 

Not bad! I wish they included some information about how you adjust things, like timebase for the hw frequency counter. Mine is a little bit (70hz) off at 10Mhz according to my GPSDO. It is within the spec, but if I could adjust it, that would be great.

don't adjust it, just design a 10MHz input port.

[mawyatt]

Not bad! I wish they included some information about how you adjust things, like timebase for the hw frequency counter. Mine is a little bit (70hz) off at 10Mhz according to my GPSDO. It is within the spec, but if I could adjust it, that would be great.

don't adjust it, just design a 10MHz input port.

Also consider Injection Locking the internal oscillator to an external source (GPS), this has worked for some folks with cheap AWGs.

Best,

[Furna]

I guess my daugther can give me difficult time if I power-off the Internet router on friday night because it is powered by a small white brick ... or the NAS

Wait until you are alone at home...

Turn off the mains home breakers one by one and check what the noise does.
If you are lucky you could at least found which breaker/home section is EMI polluting your lab.
Also be prepared to change room and travel with the scope, playing Ghostbusters.

Battery powered scopes in this situation are priceless: you could power the entire home off and have still a running scope to check noise...

What about neighboors?  Do you suggest I them all? 
I live in a building ... yes, if I do not try I won't be sure but there is a high probability that the noise is coming from outside my apartment.
Better to create a shilded box/environment as @gitm mentioned.

Battery powered scopes ... could be fan to create a battery powered supply for the SDS800X HD series now that we have the Service Manual.
Anyway I am not a fan of Ghostbusters

[barold]

hi! newb here   is there a good tutorial to learn how to use the sds800x?  i saw some posts earlier in the thread from tautech but I was looking for something a little more thorough.

tia

[tautech]

hi! newb here   is there a good tutorial to learn how to use the sds800x?  i saw some posts earlier in the thread from tautech but I was looking for something a little more thorough.

tia

Welcome to the forum.

There's a few links in the first post:
https://www.eevblog.com/forum/testgear/siglent-sds800x-hd-12-bit-dsos-coming/

There's also a few videos now appearing on YouTube that should be easy to find with a simple search

[EvgenyG]

make a battery hack would not be that hard.
2 LiIon in series pack (risky... 8.4V max, may charge only until 7.6V [3.8V/cell]) and a 15Vdc step up for the FAN.

I am pretty sure the 6.5v rail goes to voltage regulators only, and is never used directly. Interesting would be to use a lab power supply to find the cutoff voltage.

[EvgenyG]

don't adjust it, just design a 10MHz input port.

Does it have a 10Mhz time base? Probably could design a mod to make that switchable.
The HW frequency counter on SDS800X is not too bad.

[barold]

Welcome to the forum.

There's a few links in the first post:
https://www.eevblog.com/forum/testgear/siglent-sds800x-hd-12-bit-dsos-coming/

There's also a few videos now appearing on YouTube that should be easy to find with a simple search

Thanks!  I've found it easy to find reviews and demonstrations showing off the scope but they all seem to assume a level of knowing what you want to do and ignoring a lot of beginner why and when motivations.  I don't have any formal training and minimal prior usage from years ago -- I'll do some more searching and couple those links to some more generic beginner vids if need be.  Thanks

[newbrain]

If you don't have experience with scopes in general, I think that a lot of the material linked in this thread from the excellent W2AEW:
https://www.eevblog.com/forum/beginners/oscilloscope-training-class-(long)/
can be helpful.
It's geared towards analog scopes, but basic concepts still apply, and some digital based videos are on his channel and in the thread.

As for threads that show what can be done with the SDS800X specifically, performa01's series of demo/review posts, also available as a pdf is a great resource, though it presuppose some knowledge:
https://www.eevblog.com/forum/testgear/sds800x-hd-review-demonstration-thread/