What is the correct statement about the function of the WLAN Survey PAD survey tool?

The floor attribute is set for some basic information of this floor, which has great reference value for the installation method of AP when planning later.

The surveying personnel select the AP hotspot to enter the test session, and locate the approximate location of the interference source by moving the field strength change, and then input the distance.

Can calculate the power of the interference source

The classification of obstacles is mainly to draw the types of obstacles on the drawings.

The scale function is to let the surveyors know the size of the drawing scale more accurately.