Military Call Signs
In wartime, monitoring an adversary's communications can be a valuable form of intelligence. Consistent call signs can aid in this monitoring, so in wartime, military units often employ tactical call signs and sometimes change them at regular intervals. In peacetime, some military stations will use fixed call signs in the international series.
Read more about this topic: Call Sign
Famous quotes containing the words military, call and/or signs:
“I would sincerely regret, and which never shall happen whilst I am in office, a military guard around the President.”
—Andrew Jackson (1767–1845)
“They are girls. Green girls.
Death and life is their daily work.
Death seams up and down the leaf.
I call the leaves my death girls.”
—Anne Sexton (1928–1974)
“So saying, her rash hand in evil hour
Forth-reaching to the Fruit, she plucked, she eat.
Earth felt the wound, and Nature from her seat,
Sighing through all her works, gave signs of woe
That all was lost.”
—John Milton (1608–1674)