http://www.tapr.org/dayton.html#forum
The TAPR Digital Forum at the Dayton Hamvention
will be in Room 1 at 9:15 AM to 11:15 AM on Friday, May 16th
Forum Schedule
--------------------------
9:15-9:30
Introduction and TAPR Update
Steve Bible, N7HPR,
TAPR President
9:30-9:55
New Developments in the openHPSDR Software Defined Radio Project
Scotty Cowling, WA2DFI
We will take a look at exciting new developments in the openHPSDR project.
Topics include PureSignal predistortion to improve transmit linearity, the new
UDP protocol definition, a new GPS frequency standard and an overview of new
Gen2 hardware, among others.
9:55-10:20
HackRF and Your Digital World
Michael Ossmann
Modern software defined radio platforms like HackRF give us an unprecedented
ability to explore the radio spectrum around us.
Meanwhile, our world is exploding with new digital radio systems both large and
small. Never before has it been possible to interact with so many interesting
wireless systems. Join me on a tour of the vast array of digital radio signals
that are a part of your daily life and see how HackRF allows you to join in the
fun.
10:20-10:45
Whitebox / HT of the Future
Chris Testa, KD2BMH
Whitebox is a power-conserving handheld SDR transceiver with an Open Source /
Open Hardware design.
Chris Testa will show a working Whitebox system and discuss his progress and
the issues he confronted.
Whitebox is a complete RF platform that plugs into a computer.
HT of the Future, combining Whitebox and Android, gives us a handheld platform
for soft-modems and applications with a full graphical user interface. It has
all of the power of Hermes or FlexRadio, but for 54 to 1000 MHz and in your
pocket. Chris will discuss what it will take to get Whitebox to experimenters
this year and what will be necessary to realize it as an end-user platform next
year.
10:45-11:15
AMBE Exposed!, FreeDV & Codec2
Bruce Perens, K6BP
AMBE has been reverse-engineered, leading to a D-STAR receive application that
works without a DV-Dongle!
The developers would like to remain unnamed for now due to intellectual
property reasons, but Bruce has their number.
Bruce will discuss the technology, the potential for a single unit that could
talk with all of D-STAR, Yaesu System Fusion, and a Codec2 based system, and
what you can do with the software today. One of the largest concerns is when
AMBE emulating software will become legal in the U.S. due to patent expiration,
and Bruce will give a short explanation of what we know about that.
The Second Generation of FreeDV and Codec2, news from David Rowe, VK5DGR
David has been working on a new generation of FreeDV.
The prototype (in simulation as I write this) achieves a significant
signal-to-noise improvement.
Technologically, it's a startling departure from the first version. We'll go
over the design and some early audio samples, and what we expect for the next
year.
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