One of the measurements that can be made with PicoScope 6 in Spectrum Mode is Total Power and I'm trying to understand what that is.

Here is my setup, and spectrum mode settings.

PiccoScope 2205A.

Input signal is 1khz, 7 volts RMS pure sine from a signal generator.

Input range 20V, DC coupling

Spectrum range 24.41khz.

Spectrum bins 16384

Window function Blackman

Display mode Magnitude

Scale Log

Log unit dBu

x scale log10

Num decades 3

When I add a measurement for Total Power(Whole trace) it gives me 6.5 watts. Where did this 6.5 number come from? That number is way too big for a 600 ohm reference load.

Tom