040E A
 How can vessel personnel detect the operation of a SART in its vicinity?
a) A unique radar signal consisting of a 12 dots radiating outward from a SART's position along its line of bearing.
b) A unique two-tone "warbling" signal heard on VHF-FM Ch-70.
c) A unique two-tone alarm signal heard upon the automatic un-muting of the 2182 kHz radiotelephone automatic watch receiver.
d) The SART signal appears as a target which comes and goes; the effect of heavy swells on an SART.
