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I have a 50 watt vhf/uhf rig in my 5th wheel running direct from house batteries. Doesn't seem to bother the converter at all. And it's very quiet. I was "certain" the converter would inject some sort of noise/hash/garbage into the radio but it doesn't.
I suspect you'd get the same results. When parked I use either a separate deep cycle battery or a Astron 35M power supply for the HF rig, on those occasions when I decide to take it along.
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