Combining the software development skills from his thirty-five year career in the US Coast Guard and his hearing loss drove David Freese, W1HKJ, into the early HF digital modes and eventually to support GMFSK software. Building on this popular platform, David then went on to develop FLdigi, one of ham radio’s most popular software programs for encoding and decoding digital transmissions. David discusses his ham radio journey that led to the “FL” line of open source software products with Eric Guth, 4Z1UG, in this QSO Today.