TAPR/DCC video: System on a Chip – Programming FPGAs for Mixed Signal Systems

Here is the first of a four-part video series recently posted from the 2014 TAPR/DCC conference in Austin, TX. This is from the DCC’s Sunday Seminar, “a four-hour deep dive” into a single subject, in this case FPGA programming for mixed signal systems. “The presenter is amateur radio operator Chris Testa KD2BMH who is designing […]

Video: AMBE exposed

AMBE is a voice compression algorithm employed in vocoder chips used by DVSI Inc., and is commonly used in Icom’s D-Star, Yaesu’s Fusion, APCO-25, DMR, Opensky and other digital formats on the amateur, commercial and public safety frequencies. In this talk from last September’s TAPR/DCC conference in Austin, TX, Bruce Perens K6BP presented his views […]

Video: FlexRadio open API

During the TAPR/ARRL Digital Communications Conference in Austin last September, Stephen Hicks N5AC gave this presentation on interfacing with FlexRadio using their open API. Part II of this presentation was given by Graham Haddock KE9H, and discussed the FlexRadio wavefrom API. It is available from HamRadioNow. FlexRadio produces a series of high-end SDR’s, with the […]

DCC/TAPR video: FreeDV, CODEC2 and “The HT of the Future”

In this presentation from the 2013 Digital Communications Conference, Bruce Perens K6BP discusses FreeDV, CODEC2 and “The HT of the Future”. Bruce is active in advancing interest in open-source digital voice to Amateur Radio on both HF and VHF/UHF. Here he also discusses D-STAR and Yaesu’s controversial new proprietary VHF/UHF digital amateur radio communications protocol.

DCC/TAPR video: HackRF – A Low Cost SDR Platform

In this talk from the 2013 Digital Communications Conference (DCC) co-sponsored by the ARRL and TAPR, developer Michael Ossmann discussed the origins and development of the HackRF Jawbreaker SDR transceiver. This is Michael’s first talk at an amateur radio oriented conference.

Authoritative GNU Radio training videos

Want free, in depth training on GNU Radio from an authoritative source? Then you’ll want to spend four hours viewing this series of videos by Tom Rondeau, KB3UKZ, the GNU Radio project manager since 2009. Tom provides a detailed, in-depth study of this Software Defined Radio experimental and development system. These videos are taken from […]

DCC 2012: FlexRadio and SDR architecture

At the 31th Annual ARRL and TAPR Digital Communications Conference held last September in Atlanta, GA, FlexRadio VP Stephen Hicks N5AC gives an in depth presentation on SDR and its potential. He outlines his company’s new Flex 6000 series, a Linux based commercial product based on components used in government radios. While this is not […]