There are IP over mains adapters that will allow you to connect your lab LAN to the router. I use these (https://www.amazon.ca/TP-Link-Powerline-Ethernet-TL-PA7017-KIT/dp/B084CZMYNM), but there lots of other makes as well.
otherwise (USB) I get noise (that's another story )
otherwise (USB) I get noise (that's another story )
What sort of noise? Care to elaborate?
Besides, I have no intention to try other hubs and discover the hard way they all make the same problems.
otherwise (USB) I get noise (that's another story )
What sort of noise? Care to elaborate?Some time ago I said here that I have experienced a better Bode Plot speed using USB than via LAN but was a pain to use because I had both USB ports accupied: the front with a USB stick and the back with a WLAN adapter. The other USB port in the back (USB-B) was unsuitable for this. Tautech recommended me to use an USB hub to get extra ports and so I did. I bought one of those cheap USB hubs and plugged in the back USB-A port, and then plugged the WLAN port and the cable from the AWG into that hub.
Everythig worked fine but I began to experience some problems with noise: probing low amplitude signals, particularly when using 10X in the probes, resulted into high noise readings and what can be described as "occasional heebee-jeebies" with the scope traces. Suspecting from the recent hub addition I removed it and everything returned to normal. I'm pretty sure it may be because the USB hub I bought is one of those chinesium cheapos from AliExpress and sure it was cheap! the cable was not shielded neither the "shells" for the USB connections. I corrected those two issues and the problem disappeared almost completely with a little tiny bit of noise still present and very weak and less frequent "heebee-jeebies", but they're still there. As I do not want to have all my measurements permanently disturbed with noise and weird movements, no matter how weak they are, I decided to take the hub off definitely. Besides, I have no intention to try other hubs and discover the hard way they all make the same problems.
Because of that I'm now reverting to Bode Plot via LAN with the aforementined problems.
These NTP options might help:
- "Sync" should force a re-synchronization with the NTP server. You'd have to do this manually, but pushing a button is better then screwing around with the NTP server address
- "Periodic Sync" on and "Interval" set to 1h should get you an automatic re-sync within an hour. So if you can live with the time not being right for an hour...
It's too bad the shortest re-sync interval is 1h
I certainly can't say that a hub from a respected vendor would solve your problems, but I do think there's a really good chance that a hub from a respected vendor would behave better than a 90 cent no name Aliexpress USB hub.
Exactly what you would expect using 10x probes when input settings are set to high sensitivity levels.
Suggest you get some BNC to croc leads and use only 1x input attenuation when noise is a problem.
Exactly what you would expect using 10x probes when input settings are set to high sensitivity levels.
Suggest you get some BNC to croc leads and use only 1x input attenuation when noise is a problem.
Well, as I said previously, once I took the USB hub out of the equation the noise disappeared. It was not a problem with the probing procedure, it was indeed a problem with the hub. Besides, the signal I was probing was not that low: it was a 400mVpp sinusoidal wave directly from the SDG1062X.
But that is not the possible bug I mention. The bug is in the NTP coding once you change from WLAN to LAN then back to WLAN.
Interesting problem.
Have you tried placing the USB WiFi dongle into the front USB and have the USB hub on the rear USB and use only that for storage and the SDG tethering ?
That should give some physical separation between WiFi and the hub if there's interference between them.
BTW, is everything properly mains PE bonded ?
Interesting problem.
Have you tried placing the USB WiFi dongle into the front USB and have the USB hub on the rear USB and use only that for storage and the SDG tethering ?
That should give some physical separation between WiFi and the hub if there's interference between them.No but I'm going to try just right now. I'll keep you posted.BTW, is everything properly mains PE bonded ?Sorry but I'm afraid I do not understand you... what's a "mains PE bond"
Both the scope and the AWG are connected to the same mains line with good earth connection.
Until now when NTP fails to link with the NTP server, pressing Sync always fixes that but I'll look for an issue with this and WLAN and LAN.
Get some while waiting as it's already late here.
Hi,
Only a few scopes on the market have the option of changing the colors.
Unfortunately, the 1204 is not one of them, as far as I know.
(SDS2k+ and higher have this option).
I think the color selection is one of the most useful features of all, perhaps siglent should be asked again whether they can also implement this for the smaller model.