TOI transmission rates

TOIs can be transmitted as either a single ‘OneShot’ transmission or as a recurring transmission.

TOIs generated from Intel targets or DSC targets are automatically assigned as OneShot TOIs. TOIs generated from AIS targets and Radar targets allow the sender to select the TOI rate when the TOI is created. Recipients and senders can change the TOI rate at anytime.

Target of Interest (TOI)Transmission rateThe following TOI rates can be selected:

  • Target of Interest (TOI)OneShotOneShot (Single Transmission) — TOI message is transmitted only once.

  • Target of Interest (TOI)RepeatingSlow Target (600 sec repeat) — TOI message is transmitted every 600 seconds.

  • Medium Target (180 sec repeat) — TOI message is transmitted every 180 seconds.

  • Fast Target (60 sec repeat) — TOI message is transmitted every 60 seconds.

  • Aircraft Target (15 sec repeat) — TOI message is transmitted every 15 seconds.

Note

  • A vessel can only send 1 recurring TOI message at a time. If a second recurring TOI message is sent out it will replace the first TOI message.

  • A vessel can send out multiple OneShot TOI messages.

  • A vessel can receive multiple OneShot and recurring TOI messages.

  • TOI rates for Intel targets and DSC targets are always set as OneShot and cannot be changed.