What two marine band channels are reserved for AIS transmission?

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Multiple Choice

What two marine band channels are reserved for AIS transmission?

Explanation:
AIS uses two dedicated channels within the VHF maritime band to carry its data, keeping AIS transmissions separate from voice traffic for reliability. The two channels reserved for AIS are channels 87B and 88B, which correspond to frequencies around 161.975 MHz and 162.025 MHz. This dedicated allocation ensures that position, course, speed, identity, and other safety information can be exchanged clearly between ships and shore stations. Other channel pairs are used for regular voice communications or different services, so they’re not designated for AIS transmissions.

AIS uses two dedicated channels within the VHF maritime band to carry its data, keeping AIS transmissions separate from voice traffic for reliability. The two channels reserved for AIS are channels 87B and 88B, which correspond to frequencies around 161.975 MHz and 162.025 MHz. This dedicated allocation ensures that position, course, speed, identity, and other safety information can be exchanged clearly between ships and shore stations. Other channel pairs are used for regular voice communications or different services, so they’re not designated for AIS transmissions.

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