Learn 15 - NO DUFF

The proword is NO DUFF. In peacetime exercises, there are genuine urgent message to be transmitted over an exercise net.

Example:

• HULLO 00, this is 10, NO DUFF MESSAGE, OVER.
• 00, SENT, OVER.
• 10, NO DUFF man down, request for medical evacuation NO DUFF, over.

NOTE: Messages sent under the cover of “NO DUFF” are still liable to be intercepted by a potential enemy. Where encryption is necessary, the word “NO DUFF” is not to be encrypted