undersignalman

Example:The signalman was responsible for keeping the communication lines clear and operational.

Definition:A person who operates and maintains signaling equipment, especially in train operations or military communications.

Example:The telegrapher worked in the telegraph office, sending important messages via undersea cables.

Definition:A person who uses an electric telegraph for sending and receiving messages.

Example:Although not directly related to telegraphy, the riggers helped in the setup and maintenance of ship signaling systems.

Definition:A person who works in the rigging of ships, aircraft, or other large machinery, involving the use of ropes and cables to handle heavy loads.