| Which of the following conditions would be a symptom of malfunction in a 2182 kHz radiotelephone system which must be reported to an onboard or at-sea maintainer under GMDSS? |
| A) Much higher noise level observed during daytime operation. |
| B) No indication of power output when speaking into the microphone. |
| C) When testing a radiotelephone alarm on 2182 kHz into an artificial antenna, the Distress frequency watch receiver becomes unmuted, an improper testing procedure. |
| D) Failure to contact a shore station 600 nautical miles distant during daytime operation. |
