Five by Five
Posted by BigBlue on October 24, 2001
In Reply to: Five by Five posted by Patrick Nelson on August 15, 2001
From wordorigins.org:
Five-By-Five:
Q: Often in old war movies you'll hear a radio operator say, "I read you five-by-five." What does this mean?
A:The operator in question is ranking the voice transmission on a scale of one to five in two categories, strength and clarity. So, five-by-five is loud and clear and one-by-one would be weak and unintelligible.