Q code: Difference between revisions

Revision as of 14:24, 18 March 2025

Revision as of 05:11, 4 May 2025

Line 1,617:

During World War II, according to [[Bletchley Park]]’s ''General Report on Tunny,''<ref>{{cite web |url=http://www.alanturing.net/turing_archive/archive/t/t01/TR01-016.html |title=TR01-016 |website=www.alanturing.net}}</ref> German radio teleprinter networks used Q-codes to establish and maintain circuit connections.

In particular: '''QKP''' [ought to be 'QEP', not 'QKP' - the print in the source document isn't very clear] was to indicate the [[Lorenz cipher]] machine setting for each message and, '''QZZ''' to indicate that the daily key change was about to take place at the sender's station.

== See also ==