From the archives of Amateur Radio//Video News...
Digital Voice for Amateur Radio was the most complex of the three documentaries that HamRadioNow's Gary Pearce KN4AQ produced for DVD, before starting the online show. In 2007, Gary traveled to Alabama and Dallas in one trip, Chicago and St. Louis in another, and Washington DC in a third to gather interviews and footage of what was then just emerging as Digital Voice systems for Amateur Radio. The program was edited and released on DVD in 2008.
The DV modes for HF included a hardware modem from AOR and a software/sound card system called WinDRM (which evolved to today's FreeDV). The VHF/UHF modes in use then were D-STAR and P-25.
Of course, these modes have evolved since this program was produced, and newer modes like DMR, Yaesu System Fusion, and NXDN have been developed. Consider this program a snapshot in the early history of Amateur Radio Digital Voice. It's certainly not a current tutorial on operating those modes today.
Here are our two other ARVN documentaries:
And some more D-STAR history:
Radio Rating: C- at best. This was a video documentary, and while there is a lot of talking, most of the pictures you're missing are equipment in operation, locations, and a few graphics. You'll miss a lot, but since there's so much information, you'll learn a lot, too. [The Radio Rating is our estimate of how much you'll get from the program audio without the video. It's not a rating of the overall program. Those are always A+]