Radar Observer · Aids — SART
A Search and Rescue Transponder (SART) appears on a rescuing vessel's 3 cm (X-band) radar as:
- AA single steady dot
- BA line of 12 equally spaced blips extending outward along the bearing of the SART✓ Correct
- CA ring around own ship
- DA flashing range scale
Explanation
When interrogated by X-band radar, a SART transmits a response shown as a line of 12 dots starting at the SART's position and extending outward in range, guiding rescuers to a survival craft or person in distress.
Authority: GMDSS / SART (USCG topic)
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