Pony Express: Telemetry Collection in the North Pacific

This page contains a PDF version of the PowerPoint presentation at the 2019 NSA-Sponsored Symposium on Cryptologic History. After the PDF are two simulations of telemetry audio and oscilloscope displays that were used in the presentation.

Note: These simulations were written by the author in C++ on the Embarcadero C++ Builder windows application development environment. These MP4 movies include Window menus that were not visible in the PowerPoint presentation.