When you need to transmit marine radio signals for testing or technical adjustments:
- undertake a marine radio check procedure
- make sure that it will not interfere with any communications traffic
- keep test signals to a minimum, particularly on frequencies used for distress, emergency and safety purposes. You can make brief transmissions to confirm that equipment is operating properly before starting a sea trip.
Coast Radio Adelaide monitors test transmissions seven days a week and will provide advice about quality of the transmission according to the standard readability.
| Readability |
Description |
| 1 |
Unreadable |
| 2 |
Readable now and then |
| 3 |
Readable but with difficulties |
| 4 |
Readable |
| 5 |
Perfectly readable |