How to Decrypt Enigma  M3  Wehrmacht/Luftwaffe Traffic

Use the same site for encrypt instructions.

1.    Go to the EWCG website.
2.   Use only the 1944 Code Sheets for U571
3.   Download the EnigmaSim simulator.
4.   It's necessary to understand the M3 encryption procedure first. (main menu, item 6)
5.  Finally click on main menu, item 8, to decrypt.
6.  Follow all instructions carefully, take your time, double check and write down each step.

EnigmaSim hints

1.  For each project, use the menu to save your simulator configuration,  you're likely to need it again.  
2.  After each use, exit the simulator and start again to clear buffers. 
3.   If on the same project, reload the previous configuration settings from your saved file. Saves a lot of time.