Which VHF channel is used only for digital selective calling?

Under normal circumstances, what do you do if the transmitter aboard your ship i...

MSI can be obtained by one (or more) of the following:

What is Distress traffic?

What traffic management service is operated by the U.S. Coast Guard in certain d...

What is the order of priority of radiotelephone communications in the maritime s...

Which statement is NOT true regarding the requirements of survival craft portabl...

Where must the principal radiotelephone operating position be installed in a shi...

What is the minimum power of the SCT

Shipboard transmitters using F3E emission (FM voice) may not exceed what carrier...

What is the purpose of the antenna tuner?