I don't think of it that way. There are hundreds of people who can benefit from what you're doing. All of your effort makes a good tutorial on how to run these tests. Not everybody is an expert and we all start somewhere. So, boring or not for me or Salas, it doesn't matter. We are a community. That's what makes this forum great, IMHO.
Thanks Iko. I'll continue boring you then😀
Actually I'm not sure I demand replys to everything. It helps to summarize what I'm doing, in the thinking/testing/developing process, writing it down. Its good to take the silly hat also sometimes. Not everybody dares to ask noob questions so maybe as you say, someone can benefit from reading it. Hope so.
And, as you say it. As a flash from a clear blue sky heres shiny new wiring (be gone, cracky ethernet TPs) (pic 1)
Some shielding to hopefully shut out some noice (pic 2)
The barge (pic 3)
New test rig (pic 4)
Dang what have we here? 5 mV/div (pic 5)
13,5 k dummies (not as dummie as me pic 6)
New scope first shot, 2 mV/div (pic 7)
Do I have a problem
PS. Agree, great forum. Long time since I donated, gonna do that tonight, thanks!
Actually I'm not sure I demand replys to everything. It helps to summarize what I'm doing, in the thinking/testing/developing process, writing it down. Its good to take the silly hat also sometimes. Not everybody dares to ask noob questions so maybe as you say, someone can benefit from reading it. Hope so.
And, as you say it. As a flash from a clear blue sky heres shiny new wiring (be gone, cracky ethernet TPs) (pic 1)
Some shielding to hopefully shut out some noice (pic 2)
The barge (pic 3)
New test rig (pic 4)
Dang what have we here? 5 mV/div (pic 5)
13,5 k dummies (not as dummie as me pic 6)
New scope first shot, 2 mV/div (pic 7)
Do I have a problem
PS. Agree, great forum. Long time since I donated, gonna do that tonight, thanks!
Attachments
Turn on 20MHZ BW limit on the 340A. Don't scan in the low nS in general, the regs are able to oscillate at 2-6MHZ top if something interfaces bad, 160MHZ is tuning RF.
P.S. Phosphor lends visual grace to earlier DSO.
P.S. Phosphor lends visual grace to earlier DSO.
Don't use the auto button, its trying to latch on whatever it decides with that. Scan from say 10mS to 100nS manually.
At least 150MHZ probes if to cover 100MHZ DSO with not much additional shift.
Better stuff
Simply OK for hobbyist stuff
Stajo, I can send you one of Salas linked (OK for hobbyist, 200MHz) probes. I've bought a pair and then I bought one localy so...
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Use one channel at a time because it triggers off of just one and noise is not periodic so to sync 2 channels on anything in particular. Looks just like measurement loop and DSO noise to me, and low at that, with no suspicious waveform or EMI spikes. It should be a pass if you are not having something up your sleeve of course.😀
P.S. Read the manual a couple of times is highly recommended, DSO has nice tricks and traps also.😉
P.S. Read the manual a couple of times is highly recommended, DSO has nice tricks and traps also.😉
Just the 340A user manual will do so to know thy buttons.
Read this at leisure also, its a concise guide about oscopping:
http://www.bkprecision.com/downloads/pdf/OAGuide.pdf
Super! I will.
So now. It took some time bcs theres a few moments:
So now. It took some time bcs theres a few moments:
- New super 1 guage cablong
- Peeled and shorted and test probes on
- The flybridge
- Filament power lifted to 36 VDC
- Chokes isolator handmade by yours truly
- Channel one
- Channel two
