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I understand that Aurora is around 80% efficient?

I understand that Aurora is around 80% efficient?
Aurora

I checked, and my current radio is about 40-50% efficient. This means I’m saving about half the power, with Aurora, right?

Actually, no! The math around efficiency is a little more complex. A 100W transmitter that is 40% efficient generates 150W of heat (100/0.4 = 250W of input power. 250W – 100W output = 150W of heat). A 100W transmitter at 80% efficiency generates only 25W of heat (100/0.8 = 125W. 125W – 100W output = 25W). 

The heat generation of the 80% efficient transmitter is only 17% of that of the 40% efficient amplifier. This is a 6x reduction in the heat generated! This allowed FlexRadio to put a 500W transmitter in the space of a 100W linear amplifier!

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