Key presentations from the 2014 'Ham Radio' international exhibition in Friedrichshafen, Germany, have been posted online
The Vienna-based DokuFunk archive offers both audio and video presentations from the 2014 Ham Radio, which is Europe’s largest Amateur Radio gathering.
PowerPoint presentations in English include “The Enigma and Other famous Cipher Machines” by Tom Perera, W1TP; “FT5ZM — Amsterdam Island DXpedition” by Ralph Fedor, K0IR; “K9W — Wake Atoll 2013 Commemorative Expedition” by Lou Dietrich, N2TU, and “VK9MT — Mellish Reef DXpedition” by Leslie P. Kalmus, W2LK.
The German-language presentation “Yagi und Quad Antennen für den Kurzwellenamateur” (Yagi and Quad Antennas for HF” by Martin Steyer, DK7ZB, also is available.
The DokuFunk site offers selected Ham Radio presentations dating back to 2008.
Ham Radio 2014 Lectures - http://www.dokufunk.org/amateur_radio/contributions/?CID=9458#A14975