What 4 nations worked together to enable 2-meter communications from the International Space Station?
US, Russia, Germany, Italy
Question submitted by Mark ‘Fletch’ Fletcher | K2MJF
Side note: Other responses mentioned Japan and Canada, along with the continent of Europe, which are listed on the Amateur Radio on the ISS (ARISS) site. I awarded a point to any station that answered any combination of these as their 4 in their answer given the Source earlier directly mentions ARISS was formed to support amateur radio on the ISS.