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[Kez]

Hi I'm new here, I used to be into hobby electronics in my younger years and getting back into the fun now mainly playing with microchip pics GPS,  gprs and data transmission over as few wires as possible to control bit and bobs. Spent a few years fixing mobile phones and my main job is repairing hand held terminals/barcode scanners in retail.
I have a bit of a problem I'm hoping I can get a bit of help with.  I live on a narrowboat with 1kw of solar 480ah of battery bank and a pure sine wave inverter.
I've just purchased a Rigol DS1054Z scope , I'm new to scopes and it looks like I'm getting a lot of noise from my inverter, would some fancy power conditioner work to clean up the power or could I make my own and where do I start?

[David Hess]

I would spend some time figuring out exactly where the noise is coming from.  It could be from the charge controller instead of the inverter or it could be common mode noise to ground instead of differential noise between hot and neutral or hot and hot.

If the noise is high enough frequency, then they make big line side RFI filters which might work.  If it is lower, then some type of resonate filter might be needed.

If the noise is common mode, then a big low capacitance isolation transformer and common mode choke might help.

[BrianHG]

Show us a screenshot of your noise.
a) Are you getting a regular approximate 6 fine spikes along a slow 50hz or 60hz sweep?
b) Or, are you getting a continuous high frequency above 20KHz sine signal?
c) Or a low voltage squashed 50/60hz sine wave permeating everything?

If a), then your inverter may not be a pure sine wave type.
If b), then, some high frequency is leaking through the inverter's output DC-AC converter.  This one you might be able to filter with a quality AC power-bar or a dedicated line filter.
If c), then your inverter is leaking current to your common ground, or you might call this a ground loop issue.  Unfortunately, this might be by design and the only fix might be an AC line isolation transformer, at minimum for powering your scope.