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- Secret_broadcast abstract "A secret broadcast is, simply put, a broadcast that is not for the consumption of the general public. The invention of the wireless was initially greeted as a boon by armies and navies. Units could now be coordinated by nearly instant communications. An adversary could glean valuable and sometimes decisive intelligence from intercepted radio signals: messages that were not encrypted or poorly encrypted could be read order of battle and future intentions could be deduced by traffic analysis individual units could be located using direction findingIn the 1920s the United States was able to track Japanese fleet exercises even through fog banks by monitoring their radio transmissions.A doctrine was developed of having units in the field, particularly ships at sea, maintain radio silence except for urgent situations, such as reporting contact with enemy forces. Ships in formation reverted to pre-wireless methods, including semaphore and signal flags, with signal lamps used at night. Communication from headquarters were sent by one-way radio broadcasts.".
- Secret_broadcast wikiPageID "1172760".
- Secret_broadcast wikiPageRevisionID "592452923".
- Secret_broadcast hasPhotoCollection Secret_broadcast.
- Secret_broadcast subject Category:Espionage_techniques.
- Secret_broadcast subject Category:Military_radio_systems.
- Secret_broadcast subject Category:Secret_broadcasting.
- Secret_broadcast subject Category:Secure_communication.
- Secret_broadcast type Artifact100021939.
- Secret_broadcast type Instrumentality103575240.
- Secret_broadcast type MilitaryRadioSystems.
- Secret_broadcast type Object100002684.
- Secret_broadcast type PhysicalEntity100001930.
- Secret_broadcast type System104377057.
- Secret_broadcast type Whole100003553.
- Secret_broadcast comment "A secret broadcast is, simply put, a broadcast that is not for the consumption of the general public. The invention of the wireless was initially greeted as a boon by armies and navies. Units could now be coordinated by nearly instant communications.".
- Secret_broadcast label "Secret broadcast".
- Secret_broadcast sameAs m.04dc34.
- Secret_broadcast sameAs Q7444157.
- Secret_broadcast sameAs Q7444157.
- Secret_broadcast sameAs Secret_broadcast.
- Secret_broadcast wasDerivedFrom Secret_broadcast?oldid=592452923.
- Secret_broadcast isPrimaryTopicOf Secret_broadcast.