It weighs more than a friggin' POUND. It has ferrite chokes, not one, but TWO. TWO FRAPPIN' FERRITE CHOKES THAT ARE 50% BIGGER THAN A C CELL BATTERY. THAT'S LIKE THREE C CELL BATTERIES AS PART OF THE CORD.
Note that the AC converter has ONE choke, about an inch long, and a little smaller in diameter than a first grade pencil.
I don't think it needs ferrite chokes in any sense as I am not using it for transmission or receiving.
What the flapjack were the mental mites at Respironices THINKING?
SO, it is going back to Supplier #1, I think.
PS - POS Personal Observation, salutations .....