Can you make ship to shore communications using a duplex channel?

Ship to shore communications typically require a complementary setup on both ends to successfully transmit and receive information. In the context of duplex channels, this means that the communication needs two separate channels, one for sending and another for receiving. A duplex channel facilitates simultaneous two-way communication, which is essential for effective maritime operations.

When a ship communicates with shore, both the ship and shore station must have equipment capable of operating on a duplex channel. This ensures that while one side is transmitting, the other can simultaneously receive incoming information. If a ship has the ability to send a signal, the shore station must also have a corresponding channel that is configured to receive that signal, thereby completing the two-way communication setup.

The idea of needing a "sister duplex channel" emphasizes that an effective ship to shore communication system relies on a matching configuration on both sides. Without the corresponding equipment ashore, the ship's ability to communicate effectively is compromised. Therefore, this understanding highlights the importance of having compatible, dedicated channels for seamless communication, reinforcing why the necessity for a suitable ashore radio setup is crucial for duplex channel utilization.