Station HYPO

Celebrating the Past, Present and Future of Navy Cryptology


February 2018

Johnny Cash, the Man in Black, Was a Morse code Intercept Operator during the Cold War

Johnny R. Cash was born on February 26, 1932 in Kingsland, Arkansas to Ray Cash and Carrie Cloveree. He was the fourth of seven children.
Continue reading “Johnny Cash, the Man in Black, Was a Morse code Intercept Operator during the Cold War”

The Zimmermann Telegram (Part 4 of 4)

By this time the Germany had just declared unrestricted submarine warfare and the United States had broken off diplomatic relations as a result, Great Britain held the telegram for more than two weeks, hoping that it wouldn’t be needed to prod the United States into war.
Continue reading “The Zimmermann Telegram (Part 4 of 4)”

The Zimmermann Telegram (Part 3 of 4)

It was immediately clear that the telegram was of inestimable value in finally drawing the United States into the war on the Allied side, a long-time British objective.
Continue reading “The Zimmermann Telegram (Part 3 of 4)”

The Zimmermann Telegram (Part 2 of 4)

On the morning of January 17, 1917, Room 40 intercepted a coded German diplomatic message from Foreign Secretary Zimmermann to Count von Bernstorff, the German ambassador in Washington.
Continue reading “The Zimmermann Telegram (Part 2 of 4)”

The Zimmermann Telegram (part 1 of 4)

In 1917, as World War I dragged on in Europe, a neutralist President Wilson and a mostly apathetic American public wanted little to do with the European conflict. In fact, Wilson had just won reelection under the slogan, “He kept us out of war.” However…

Continue reading “The Zimmermann Telegram (part 1 of 4)”

Remembering SSGT Donald D. Daugherty, USA, KIA Vietnam

Assigned to the Army Security Agency, 3rd Radio Research Unit (RRU), SSGT Daugherty Military Occupational Specialty was a Morse code intercept operator (05H40).
Continue reading “Remembering SSGT Donald D. Daugherty, USA, KIA Vietnam”

NSGA Midway Island closed February, 1971

Naval Security Group Activity (NSGA) Midway Island was commissioned on July 1, 1954 and was decommissioned and closed in February, 1971.   Continue reading “NSGA Midway Island closed February, 1971”

Like to Write?

Message follows: Continue reading “Like to Write?”

Math That Saved Lives

February 9, 1926, the Enigma was introduced into the German Navy as Radio Key C or Radio Cipher C. Continue reading “Math That Saved Lives”

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