How should the signal from a Search And Rescue Radar Transponder appear on a RADAR display?

The signal from a Search And Rescue Radar Transponder (SART) is designed to assist in locating vessels or individuals in distress. When activated, a SART transmits signals that appear on a radar display as a series of distinct, regularly spaced dots. Specifically, this typically manifests as a series of 12 equally spaced dots that indicate the presence of the SART.

These dots help search and rescue teams quickly identify the location of the distress signal amidst other radars signals, allowing for effective coordination of rescue operations. Each dot corresponds to a pulse from the SART, which facilitates easy recognition and accuracy in locating the source.

In contrast, the other options do not align with the established behavior of SART signals on radar displays. The dashes and spirals described in the other choices do not represent the SART's distinctive signaling method, which emphasizes the need for clarity and recognition in urgent situations.