History Home Page

Data Communications Home Page

Classroom Poster

CassroomPoster.jpg (23531 bytes)

A classroom poster used at the Air Traffic Academy. The arrows on the second row of keys and the symbols on the third row were used for encoding weather observations. The symbols were phased out with the introduction of LSAS – it could only use alphanumeric characters.


FillerTr.gif (48 bytes)

        Please send  comments regarding this page to Webmaster