I use a pair of 120 VAC rotors and a 120 VAC Laptop charger. I have used
purpose built inverters rated up to 300W but not found them very effective. I
now use a UPS that has 'black start' capability IE I am able to tell it to
provide 120V 60 Hz without first connecting to the mains.
It makes some noise but it not the largest contributor to the mobile noise
floor. I estimate that too be the cell chargers, a laptop second screen and
the laptop itself.
The noise is also most noticeable while rotating the array. Some thing that is
done often but is not continuous.
73RussellVE3OIL
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