The Aaronia AG AR 122/036 Signal Strength Locator block creates an audio signal proportional to the signal strength, which is a great help for locating a RF signal via an audio tune. Stereo is available by using two identical antennas. In addition, a map can be displayed to plot the direction of the signal source. If one does this twice from different locations, the point of origin is determined by the intersection of the two vectors.