Which condition must be reported to the Master in a 2182 kHz radiotelephone system?

The situation involving no power output indication when speaking into the microphone is critical to report to the Master in a 2182 kHz radiotelephone system because it indicates a potential communication failure. This frequency is designated for distress and safety communications in maritime operations, and any failure in the system could result in serious consequences during emergencies. Effective communication is vital at sea, particularly in times of distress, so understanding that there is no power output means that the vessel may not be able to transmit messages or respond to calls for help. Reporting this condition allows for immediate attention and troubleshooting, ensuring that the vessel retains its ability to communicate effectively with other ships and shore stations.

In contrast, while a higher noise level, improper testing of the receiver, or failure to contact a distant shore station could indicate operational issues, they do not directly imply an immediate breakdown of communication capability like the lack of power output does. The urgency and potential hazard associated with losing the ability to transmit make this situation a priority for reporting.