Digital Communications Conference next month

George Heron N2APB n2apb at midnightdesignsolutions.com
Sun Aug 21 16:33:02 CDT 2011 

Hi all,

FYI ... Reminder about the TAPR-ARRL Digital Communications Conference is
coming up next month.  It¹s being held this year close by to us all at a
hotel at the BWI Airport in Baltimore.  It¹s a good annual conference with
many interesting technical topics presented all day Friday and Saturday,
with an optional 4-hour ³tutorial seminar² conducted on Sunday morning.  See
the line-up of presentations below.

By way of example on the usefulness of the Sunday Seminar, I attended last
year¹s ³Intro to Embedded DSP², which was geared toward implementing
standard DSP techniques on the popular dsPIC33F processor from Microchip ‹
the the same one as I use in my NUE-PSK Digital Modem and in the SDR Cube
Transceiver.  I picked up on the Goertzel Filter and then implemented it as
the heart of CW ³digital² mode support on the modem and Cube ... that I¹ll
be presenting on this at this year¹s conference!

Anyway, the AMRAD group is pretty active on leading-edge topics an I¹m sure
many of you would enjoy this year¹s DCC event.  I¹d be happy to fill in any
details if there are questions.

73, George N2APB


==================================================
The 30th Annual 
ARRL and TAPR Digital Communications Conference
September 16-18, 2011 - Baltimore, MD
http://www.tapr.org/dcc

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Final preparations are being made for the 30th Annual ARRL and TAPR Digital
Communications Conference.  Are you ready?  Here's a check list to help you
out:

Check List:
- Have you booked your travel?
- Have you booked your hotel room? (see below for special rates and
deadline)
- Have you registered for the DCC? Go to http://www.tapr.org/dcc to sign up.

Below is the list of submitted papers. The speakers schedule is being
assembled. We have a an exciting list of paper talks, guest speakers, and
Introductory Seminars.

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Hotel:

Four Points by Sheraton BWI Airport, Baltimore, MD.

A block of rooms at the special DCC room rate of $90.00 single/double. This
special rate is good until August 25, 2011 after that you will pay the
regular room rate. To book your room, use the reservation link below or call
the hotel directly (phone numbers below) and mention the group code DCC
(Digital Communications Conference) when making reservations. Be sure to
book your rooms early!

Four Points by Sheraton BWI Airport
7032 Elm Road
Baltimore, Maryland 21240
Reservations: 1-800-368-7764 Phone: 410-859-3300

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Submitted Papers:

DATV-express: A Lower Cost Approach to DATV
Charles Brain, G4GUO and Ken Konechy, W6HHC

A Shadow Ad-Hoc TEMPn-N Network
Bob Bruninga, WB4APR

CW Mode for the NUE-PSK Digital Modem
Dave Collins, AD7JT and George Heron, N2APB

APRS and the Android Smartphone
Sagar Gupta, KC2VSG

Practical Implementations of Bluetooth in Microcontroller Circuits
John A. Hansen, Ph.D. W2FS

Public Service Event APRS Web Mapping for Wireless Devices
Ted Jacobson, W8KVK and Rob Jacobson, KB9AFT

WRC-12 Agenda Item 1.19: Regulatory Considerations for Software Defined and
Cognitive Radio Systems
Brennan Price, N4QX

More experiments with Delay and Disruption Tolerant Networking over AX.25
Networks
John Ronan, EI7IG, Darren Long, GØHHW and Kristian Walsh

A Further Comparison of Different TCP/IP and DTN Protocols over the D-STAR
Digital Data Mode
John Ronan, EI7IG and Cathal O¹Connor

Codec 2 ­ Open Source Speech Coding at 2400 bit/s and Below
David Rowe, VK5DGR

PhoneSat: Balloon Testing Results
Mike Safyan

Modulation ­ Demodulation Software Radio (MDSR) Software for the BiLiF
computer interface
Alex Schwarz, VE7DXW

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Introductory Talks (Saturday):

Introduction to Digital Voice
Introduction to Digital Modes
Introduction to D-STAR Digital Voice & Data

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Demo Room:

Be sure to bring your projects to show in the demo room. Even if you are not
speaking. Each year at the DCC a separate (and lockable) room is provided
for people to bring and show off their latest projects. Tables and power
will be provided. Bring your equipment and display for all to see, learn,
and ask questions about. Be sure to bring a small sign and/or flyer naming
and describing your project.

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Saturday Night Banquet Speaker:

The Village TELCO
David Rowe, VK5DGR

There are now billions of mobile phones all over the world. However in many
developing countries, mobile phones are simply too expensive to use. For
example, in a country where people earn $1.50/day, a phone call can cost 21
cents/minute. This is a huge tax on communications.

David Rowe, VK5DGR, will describe how a community of people from around the
world set out to fix this problem, using a mix of Wi-Fi and open source
software. The result is the Village Telco - a DIY telephone company that
anyone can set up. 

A Village Telco is constructed from a network of "Mesh Potatoes" - small
Wi-Fi boxes that are mounted on homes in a village. They form a mesh
network, relaying telephone calls for each other. Each Mesh Potato connects
to a regular telephone inside village homes. Phone calls on the network are
free. A local person in the Village can be trained in a few hours to set up
and maintain the network.

To build the Village Telco we borrowed many ideas from Ham Radio, such as
sharing hardware designs and community networks.

The talk will include real world stories of how Village Telcos are helping
people in several developing countries, and explain why a simple phone call
that we take for granted can be so important.

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Sunday Seminar:

Stay tuned.  We are assembling an exciting seminar.  Details will be
released this week.

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Schedule:

Friday
8:15 AM Conference Registration and Demonstration Room Open
9:00 AM Welcome and Introductions
9:30 AM Technical Presentations
Noon Lunch
1:00 PM Technical Presentations
6:00 PM Break
7:00 PM Social
11:00 PM Demonstration Room Closed

Saturday
7:15 AM Conference Registration and Demonstration Room Open
8:00 AM Welcome
8:15 AM Technical Presentations
Noon Lunch
1:00 PM Technical Presentations
3:15 PM TAPR Membership Meeting
6:00 PM Break
7:00 PM Dinner Banquet
11:00 PM Demonstration Room Closed

Sunday
8:00 AM to Noon Sunday Seminar

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We hope to see you there!

73, Steve N7HPR
President TAPR



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