January 2018 Club Meeting - Digital Voice Modes - the next step in repeater technology

Friday, January 19, 2018

7:00pm MST

Ascension Lutheran Church 1220 West Magee Road, Tucson, AZ


Handyman Corner

By Tom, W8TK

Kit of the month: Simple regenerative receiver

Project: Cable Management


Digital Voice Modes - The next step in repeater technology

Presented by Bob, AF9W

Digital Voice Modes

With the advent of digital voice in commecial radio it didn’t take long for those technologies to move into ham radio. With all the major Japanese and Chinese radio manufacturers selling digital voice products, this segment of ham radio is booming. Digital voice is easily transferred over the internet allowing even Technician licensees to have conversations with hams in other states and countries through their local repeater or hotspot. Software development around digital voice has lead to significant homebrewing to overcome some of the early limitations of digital voice. The presentation will discuss the growth of digital voice in ham radio, some history, the similarities and differences among the modes, and the current state of the art.

Bob, AF9W, has been licensed since 1979 and an OVARC member since April 2011. As a snowbird, he became interested in internet based digital voice as a means of keeping in touch with fellow hams as the sunspot cycle dipped into it a cyclical minimum. As a retired software engineer, he is also interested in ham radio software and mixing computers and radio.