In all cases, the transmit frequency of a MF/HF console DSC Distress alert:

Correct Answer: Option C — It depends upon operator DSC Call set up entries.

The specific transmit frequency for an MF/HF console DSC distress alert is determined by the operator's configuration. The operator can choose a single-frequency alert (typically 2187.5 kHz or 8414.5 kHz) or a multi-frequency scan call depending on propagation and location.