signal board

American  

noun

1. a board for displaying electrically transmitted signals and indicating their source.

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Example Sentences

A small platform, two windows, a door, and the signal board perched high on a pole completed the outfit.

From Danger Signals Remarkable, Exciting and Unique Examples of the Bravery, Daring and Stoicism in the Midst of Danger of Train Dispatchers and Railroad Engineers by Hill, John A.

Lord Hastings touched a button and the signal board glowed.

From The Boy Allies Under the Sea by Hayes, Clair W. (Clair Wallace)

While this talk was going on Sam and Tom were following some footprints leading from the clearing where the signal board had been found down a small path toward the lake.

From The Rover Boys out West Or, The Search for a Lost Mine by Stratemeyer, Edward

And once again the signal board on the U-16 glowed red: "Fire!"

From The Boy Allies Under the Sea by Hayes, Clair W. (Clair Wallace)

Nance looked at him in terror, then at the signal board and the levers that controlled the gates.

From Calvary Alley by Rice, Alice Caldwell Hegan