6. Channel: Voice communication channel
To communicate with a coast station, a station sends its position data to the coast station and the coast station determines the chan- nel to use. A station may only use CH16 (distress channel) in the event of distress.
7. Pos: Ship’s position
Position input by radionavigational equipment.
8. UTC: Universal Time Coordination
The equipment contains a clock. External time input from radionavigational equipment cannot be used.
9. ACK RQ (BQ):
Acknowledge request (RQ) or acknowledge reply (BQ).
