This app shows the radio messages required in the SRC (Short Range Certificate) according to WRC-07 in GMDSS:

- Distress alert (Mayday)
- Mayday Relay
- Distress acknowledge
- Radio silence (Silence Mayday)
- End of distress (Silence fini)
- Distress cancellation
- Urgency alert (Pan Pan)
- Urgency message cancellation
- Safety alert (Securite)
- Safety message cancellation
- Routine call

To achieve individual and customized messages following items can be changed: Ship name, callsign, MMSI, position, time, boat data of ship in distress, recipient and content of the message (if allowed by the standard), name of the skipper.

Additional features:

- The current position and time (UTC) can be determined and inserted in the message automatically.

- The messages can be read out like they have to be spoken (e.g. callsign spelled out, digits separately...)

- The messages can be written like they have to be spoken (e.g. "decimal" for the decimal point)

- Possibility to switch between GMMDS and standard messages

The app demands only the permission to determine the current position with GPS.