Hellschreiber on 20 meters

In anticipation of the Feld Hell Club's 2018 Leprechaun Sprint, I made a quick screen capture of me calling CQ using Feld Hell (Hellschreiber) on HRD/DM-780 running on a Windows 10 virtual machine running on my 2011 MacBook Pro. The software decodes incoming signals from the radio and data interface box (a Yaesu FT-891 and SignaLink USB) and encodes my input and sends it back through the SignaLink to the FT-891 for transmission. I am running 50 watts on 20 meters here.
As an historical note, this is the method that the German military used to transmit messages encoded with the incredible Enigma machine.
Club info here:
sites.google.c...
Hellschreiber info here:
en.wikipedia.o...
Enigma info here:
en.wikipedia.o...
Bletchley Park info here:
en.wikipedia.o...