This is the presentation Michael G7VJR and Alan 5B4AHJ used at Friedrichshafen - other, similar slides have been used since:

This is the presentation Michael made at the Tokyo Ham Fair in 2016:

This is the Japanese translation of those slides:

If you make any changes or enhancements, it would be great if you could share these with us. In particular, if you translate this talk into another language we would be delighted to share your version on this page.

Good luck with your talk!

vy 73

Michael G7VJR