He is the author of 20 textbooks and more than three dozen articles, mostly on computer programming and QRP projects using microcontrollers.
Jack Purdum is a retired professor of Computer Technology at Purdue University where he taught various computer programming courses.
They are also co-founders of the Greater Cincinnati Builders Group and were awarded the RSGB’s Bennett Prize in 2021 for their article on their “Double-Double Magnetic Loop” antenna article in the February, 2020, issue of RadCom. Jack and Al co-authored the Software Defined Radio Transceiver (2022) and Microcontroller Projects for Amateur Radio (2019) books and numerous articles and presentations. Jack and Al collaborated to build the T41-EP, a 7 band, 20W, CW/SSB SDR transceiver and this presentation is chiefly about how they developed the high performance CW decoder.
