Hi,
I am currently using powerline network adapters at home (Homeplug). 99% of the time, it is functioning properly. I tested the bandwidth between the two terminals over a day and it seemed pretty stable.
However, once in awhile (once or twice every evening), I experience a full network disconnection.
I suspect line noise to be responsible, and am unsure of what would be the best way to verify my theory, and if it is accurate, locate the noise source.
Here is what I am currently weighing on using:
- Using a DMM with data logging features
- Using an oscilloscope
My budget is quite limited. I would not like to spend more than 100$-150$ on a multimeter, but reading this forum, I saw that most models in that price range have input protection issues and I would prefer keeping all my fingers intact and not burn my house down
. I don't know how much that is a problem for the usage I intend on doing with it (measuring voltage over time on 110V mains). Aside from that very specific problem I have right now, and maybe some vacuum tubes testing (I built a Bottlehead Crack amplifier, and might want to upgrade it later on), I mostly plan on using the meter for light digital use (Raspberry Pi, Arduino, etc...).
As for an oscilloscope, while I guess it would help me visualize the issue, my budget would only allow me to buy either a used one or a cheapo solid-state kind (SEEED DSO Nano and such), or a PC-based one (not sure I am too keen on making a connection between my computer and the mains, though
). Aside from debugging my immediate issue, I would not have much use for an oscilloscope, so I would rather put my money on a DMM.
If it wasn't for the input protection issue, I would probably go for a UT61E, based on the readings I made on this forum.
Can anyone tell me:
- Would a logging DMM help me verifying my hypothesis and locate the noise source?
- Is the input protection an issue for the usage I intend on doing?
- Is there another method to identify the line noise I am not thinking about?
Please note that while my questions are somewhat of the 'newbie' kind, I have an EE degree, although I did not work in that field for a decade, which is why I refer to this forum for advice. I can understand EE talk though, so don't be shy on details
Thanks in advance