At what point should the DIRTLX command be given to a coast station?

The DIRTLX command is used to initiate a direct telex connection during communication with a coast station. The correct timing for issuing the DIRTLX command is critical to ensure a successful and efficient connection.

Once the automatic exchange of answerbacks is completed, the coast station will send a "Go Ahead" indication, signaling that it is ready to accept further commands. It is after receiving this "Go Ahead" indication that the DIRTLX command should be sent. This ensures that the coast station is ready for the next step of establishing direct communications.

Sending the DIRTLX command immediately following the automatic exchange of answerbacks would be premature, as the station may not yet be prepared to process the request. Likewise, sending it after the answerbacks and prior to receiving the "Go Ahead" indication does not follow the proper protocol established for GMDSS communications.

The structured communication process ensures that signals are sent and received only when all parties are ready, minimizing the risk of confusion or miscommunication during crucial maritime operations.