Eric Dollard explains the pictures in this presentation, which is the second transmission structure for the Advanced Seismic Warning System. By having two transmission structures, Eric is able to analyze the Earth signals in stereo and this allows a greater ability to spatially locate the source of the Earthquake activity.
EDIT: ORIGINALLY POSTED AS A52-E BUT IS ACTUALLY A52-W.
Please donate to this fundraising campaign to help expedite the completion of this project, which is desperately needed around the world. http://igg.me/at/ericdollard/x/2343214