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ARRL and TAPR 32nd DCC 2013

General notes:

Copies of the papers presented at, or published for DCC are available in various ways. A paper printed in the proceedings will be available for purchase in most cases in hard copy as the DCC proceedings. It will in most cases also be available as an individual paper in PDF format as a free download via a link below the abstract (where available) It may also be available on CD-ROM. A paper printed in the proceedings may not have been presented at the conference. Also a presentation at DCC may not be in the printed proceedings. In those cases it may be available on DVD, CD-ROM or as a MP3 download. Links to what is available will be on the page specific to the particular year's DCC.

32nd.gif The price for the TAPR and ARRL 32nd Digital Communications Conference 2013 Proceedings is:

    $ 20 US +applicable shipping/handling.
(Place Web Order) (This link takes you to lulu.com)

Seattle, WA

Steve Bible, N7HPR, Conference Manager

Local Hosts
Tina Stroh KD7WSF
Steve Stroh N8NGU

32nd ARRL and TAPR Digital Communications Conference
September 21-23, 2013

(CAB) Controllable Altitude Balloon Proposal
by Pedro Converso LU7ABF
Abstract: This paper proposes a method for controlling high altitude ballons.

Proceedings Paper

Noise Power Ratio (NPR) Testing of HF Receivers
by Adam Farson VA7OJ/AB4OJ
Abstract: Noise-power ratio (NPR) testing is a performance test technique in which a notched noise-band is applied to the input of the DUT, and the output of the DUT is connected to a selective level meter whose bandwidth is less than that of the notch in the noise spectrum. The ICN (idle-channel noise) is measured with the noise-band (1) not notched and (2) notched

Proceedings Paper

High Performance BPSK31: Ideas for a New Generation
by John A. Gibbs NN7F
Abstract: Advancements in Personal Computing capabilities and signal processing theory present an opportunity to improve Amateur Radio.s most popular digital mode, BPSK31. Error reduction methods are investigated and simulations are compared to theory. Areas for further investigation are suggested.

Proceedings Paper

Raspberry Pi Applications in Digital Communications: A Mobile Xastir-Based APRS Station
by John A. Hansen W2FS
Abstract: TNC-Pi is a version of the TNC-X KISS mode TNC that is designed specifically to plug into a Raspberry Pi computer. Coupled with a mobile monitor, and keyboard/trackpad, it makes it possible to assemble mobile APRS station for a very low cost. This paper describes the components needed for this and provides step by step instructions on how to configure it.

Proceedings Paper

Gnuradio Companion module for openHPSDR Hermes / Metis SDR Radio
by Tom McDermott N5EG
Abstract: This paper discusses the design and implementation of software that provides an interface for the OpenHPSDR Hermes/Metis Ethernet-based SDR transceiver module to Gnuradio. General design requirements imposed by Gnuradio and the hardware itself are discussed. Some applications of Gnuradio using this software are illustrated. The module has been tested with Hermes and should be compatible with Metis. The module has been tested on Ubuntu 12.04, 12.10, and 13.04. It has been tested at the time of this writing through the current version of Gnuradio 3.6.5

Proceedings Paper

Evaluating OLSR and B.A.T.M.A.N over D-STAR
by John Ronan EI7IG and Darren Long G0HWW
Abstract: This work examines the performance of both the Optimized Link State Routing (OLSR) protocol and the Better Approach To Mobile Ad hoc Networking (B.A.T.M.A.N.) protocol over the Digital Smart Technologies for Amateur Radio - Digital Data mode (D-Star DD). A comparison was performed with differing parameters to evaluate what impact, if any, they would have on overall goodput, over and above the default settings. In this scenario, with multiple nodes, the experimental results show that the housekeeping data being transmitted by both protocols can significantly and adversely impact the available bandwidth on the channel.

Proceedings Paper

Narrowband IP over Amateur Radio Networks (NIPARnets) Next-Generation Networking for Amateur Radio
by Timothy J. Sal, AB0DO
Abstract: The Narrowband IP over Amateur Radio Networks (NIPARnets) proposed here offer an opportunity to design, develop, and deploy a new generation of amateur radio digital networks. NIPARnets will employ state-of-the-art protocols and technologies: they will leverage and extend recent work by researchers, standards development organizations, and others. These networks will offer amateurs a digital network that will make effective use of our valuable narrowband very high frequency (VHF) and ultra-high frequency (UHF) radio frequency (RF) channels. NIPARnets will connect seamlessly with the Internet, enabling amateur devices to appear to be part of and directly accessible from the Internet. These networks will benefit amateur radio beyond simply providing a new, more capable, more efficient network for use on narrowband channels: they will help attract new members to the amateur radio community, particularly those who want to experiment directly with wireless data networks and the technologies that power the Internet. Equally importantly, NIPARnets will help protect our VHF and UHF spectrum by demonstrating how we can use this scarce resource to help advance the radio and networking arts.

Proceedings Paper

Modulation . Demodulation Software Radio
by Alex Schwarz VE7DXW and Guy Roels ON6MU
Abstract: How to build and setup the MDSR Software V2.6, build the LIF2012 Converter and install it into a Transceiver Installation procedures for FT-817, FT-857, FT-897, IC7000, IC-703 as addendum.

Proceedings Paper

A Software Defined Radio for Mesh Networks
by John B. Stephensen KD6OZH
Abstract: This paper describes an FPGA-based SDR transceiver that may be used for ad-hoc wireless mesh networking on the VHF and UHF amateur bands. The architecture allows simultaneous use of two channels, a fixed frequency control channel and a variable frequency data channel, to overcome bandwidth limitations and prevent inter-node interference. Multiple transceivers may cooperate to form a layer-2 mesh network that looks like an Ethernet switch to users. Internal software implements derivatives of AODV and ODMRP with source multi-point relays for efficient unicast, broadcast and multicast transmission.

Proceedings Paper

Whitebox Handheld Software Radio Kit
by Chris Testa KD2BMH
Abstract: Whitebox Progress Report

Proceedings Paper

DATV-Express . a Testing Report
by Art Towslee WA8RMC and Ken Konechy W6HHC
Abstract: Status of Digital-ATV Today

Proceedings Paper

Some of the faces seen at DCC 2013.

John Ackermann, N8UR Bruce Perens, K6BP Larry Wolfgang, WR1B
John Gibbs, NN7F John Ronan, EI7IG Heikki Hannikainen, OH7LZB
John Hays, K7VE Steve Hicks, N5AC Bryan Hoyer, K7UDR
Tim Salo, AB0DO Erik Westgard, NY9D Bart Kus, AE7SJ
Michael Ossmann Adam Farson, VA7OJ Alex Schwarz, VE7DXW
John Hansen, W2FS Jim Pace, K7CEX

Video of the presentations at the 32nd DCC will be available:

Check for availability at: HamRadioNow.tv.

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