Hi,

I'm trying to measuring RF power with a directional coupler,followed by a schotky detection diode.

It gives me a voltage proportional to the power

On my LCD I would like to display "Power" in Watt

A 3dB increase in power will give a 6dB increase in voltage
so double power is not double voltage
(remember 10log Pout for Power, 20log Pout for voltage)

How can i calculate the decimal value in watt's out of my 10bit ADC value