XRS4 and XRS5 into Denver tonight, good signals: http://i1324.photobucket.com/albums/u604/mbdittmar/4000m_argo_captures_2014/capt0021_zps6585e4cc.gif I will let Argo run on 4000 m for XRS4 while I'm at work tomorrow for the groundwave test. 73 Mark AB0CW / WG2XNI