On which of the following does an automatic identification system (AIS) transponder transmit and receive information?
Official USCG Answer & Rule Citation
Correct Answer: Option C — VHF maritime band
AIS transponders operate on the VHF maritime band, specifically utilizing frequencies in the 160 MHz range. This allows for the exchange of dynamic and static data between vessels and shore stations, distinct from the X-band or S-band frequencies used by marine radar systems for target detection.
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