SILENT KEY

[IK0ZCW]

Bob Bruninga, WB4APR passed away on 7 February, aged 73. A retired senior research engineer at the United States Naval Academy, he was the inventor of the Automatic Packet Reporting System (http://www.aprs.org/) and published the APRS paper at the ARRL 11th Computer Networking Conference in 1992. He also had "an abiding interest in alternative power sources", the ARRL recalls, and he authored 'Energy Choices for the Radio Amateur', published by ARRL in 2018, "which explores developing changes in the area of power and energy, and examines the choices radio amateurs and others can make regarding home solar power, heat pumps, and hybrid and electric vehicles".
Also reported SK is Jim Elliott, KA3UNQ, who passed away on 1 February aged 78. First licenced in 1989, he enjoyed island activating along the East Coast for both IOTA and the US-Island Award programmes, but for the past twenty years his primary operating interest was the activation of lighthouses for the Amateur Radio Lighthouse Society.