Which statement related to SITOR (NBDP) communications is true?

The correct statement regarding SITOR (SImple Telex Over Radio) communications is that two-way communication with the coast radio station using FEC (Forward Error Correction) is not necessary to be able to receive the broadcasts. This is accurate because SITOR is primarily designed for one-way communications where a vessel can receive broadcasts, such as weather reports or navigational warnings, without having to establish a two-way exchange with the station.

The FEC mode in SITOR allows for improved reliability in transferring messages by enabling the detection and correction of errors in transmission. However, the initial receiving of broadcasts does not require confirmation or reply from the vessel, indicating that the ability to receive these broadcasts is independent of any two-way dialogue.

While other statements may contain elements of truth, they do not fully capture the process of SITOR operations as accurately. For instance, FEC broadcasts are typically sent on predetermined working channels, and while it's common to have answerbacks or confirmations in certain scenarios, these are not prerequisites for receiving broadcast transmissions, emphasizing the primary utility of SITOR as a reliable one-way communication method.