Placing a Test Call
Before placing a test call, you should obtain the MMSI number for a local station that is known to respond to DSC test calls, such as those operated by local maritime safety authorities to help mariners verify their radio's calling capability.
TIP:
You can also verify your radio's calling capability by sending a position request to a
nearby station that is known to respond to position requests (Requesting a Vessel's Position).
Parent Topic: Digital Selective Calling