Wireless intercept deception played a critical role in most military operations. In doing so, combatants needed to fool sophisticated traffic analysis.  Read more

Every good story needs a hero. Here are my picks for the WW2 Wireless Intercept Heroes you should know about.  Read more

What began as a search for Nikola Tesla’s idea for a death ray led to the very practical creation of Chain Home radar system and victory in the Battle of Britain.  Read more

Wireless intercept fighting U-boats won the Battle of the Atlantic. In addition to Ultra, tactical advantage came from Huff Duff.  Read more

High frequency direction finding, or Huff-Duff was used to find locations of enemy transmitters in the field, on land, and especially at sea. This was a global effort.  Read more

While code breaking is spectacular, radio traffic analysis was the real meat and potatoes of signals intelligence from WW2 wireless intercept.  Read more

Although most hams joined the forces, several thousand stayed home doing civilian intercept. In Britain they were volunteers. In the U.S. they worked for the FCC.  Read more