Cyprien,
We appreciate some of your ideas and suggestions.
Regarding the power measurement. It is a channel power measurement using the user defined settings in the sweep settings control panel. The channel power result is what is plotted on the map. The channel power measurement is made in the frequency domain, not the time domain, so it may not be accurate for very short duration pulsed signals.
The GPS min delta and meas speed control how often the GPS is sampled. It can prevent you from taking measurements too often or too close together. If the meas speed interval has passed and the GPS reports a distance at least minimum distance from the last point, then a new point is plotted on the map using the most recent channel power reading.
I hope this helps. Let us know if you have follow up questions. There is some short descriptions of the controls in the Spike user manual as well.
Andrew
