35th ARRL and TAPR Digital Communications Conference

September 16-18, 2016, St. Petersburg, Florida


Introduction To The PICAXE 

By Darrell Davis KT4WX

Abstract: The purpose of this paper is to introduce the amateur radio operator to designing microcontroller based projects with the PICAXE microcontroller. Being the PICAXE microcontroller is programmed in BASIC programming language, the ease of learning to use the device for the newcomer as well as the radio amateur who has programmed in BASIC programming in times past, is much easier. This paper will explain what PICAXE microcontrollers are and how to get started in using them in project designs.

Proceedings Paper  


Public service, APRS and the Internet of Things 

By John Ronan, EI7IG, Padraig Donovan, SWL, and Barry P. Mulcahy, EI3HLB

Abstract: In this paper we outline a prototype system assembled to improve situational awareness during a large public-safety event by integrating the use of SigfoxTMdevices into a pre-existing Amateur Packet Reporting System (APRSTM) systems and infrastructure. APRS mapping is well established at this event already. Here we explain how ultra-low-power embedded systems based on Sigfox devices were integrated into the pre-existing infrastructure.

Proceedings Paper – Presentation Slides  


Amateur Radio Emergency Data Network

By Andre Hansen, K6AH

Abstract: This paper builds on an AREDN paper submitted by the author and published in the proceedings of the ARRL and TAPR 34th Digital Communications Conference 2015(1). Where that paper introduced the technology and the work of the AREDN Project software development team, this paper picks up where that leaves off and describes techniques for deploying AREDN in support of AUXCOM. Breaking the network down into layers: strategic fixed locations, tactical deployments, and disasterspecific end-points; the author lays out straightforward implementation techniques which ensure multimegabit connectivity between deployed teams and their central command and control. Over the past 2 years, the AREDN Project has changed the complexion of High-Speed Multimedia (HSMM) from an experimental, hobby-oriented, novelty into a viable network technology suitable for restoring data network connectivity when all else fails.

Proceedings Paper – Slide Presentation


Using Digital Communications and Microwaves in Amateur Radio and in the Amateur Satellite Service 

By Michelle Thompson W5NYV, and Dr. Robert McGwier, N4HY

Abstract: One of the biggest revolutions in technology has been the transition from information being represented in analog form to information being represented in digital form. This transition has profoundly affected communications and media of all types. Photography, music and video recording, documents, telephony, and computation have been fundamentally recast in formats that are compressible, storable, filterable, easily copied, and easily shared.

Proceedings Paper


DV4Server: A stable, economical and scalable interconnection of different digital voice networks. 

By Uli Altvater, AG0X, and Torsten Schulze, DG1HT

Abstract: This white paper analyzes different implementations of interconnecting digital voice networks. Advantages and risks are described and a new architecture is proposed. This approach has advantages regarding stability, cost and scalability and allows direct calls between different modes and network architectures.

Proceedings Paper – Slide Presentation


IPv6 in Amateur Radio 

By Bryan Fields, W9CR

Abstract: A historical overview of legacy Internet protocols and their limitations will be presented here. IPv6 is the internationally recognized standard replacing these protocols. A short introduction to IPv6 and a case for its support in the amateur radio community is lacking. Finally an overview of the coming IPv6 deployment in HamWAN Tampa Bay is presented as a study of deployment for use by radio amateurs. Some background in IPv4 and Internet protocols is assumed. 

Proceedings PaperSlide Presentation


Build your own IF SDR Introduction of MDSR V3.1 and the Scanning RF-Seismograph V1.4 

By Alex Schwarz, VE7DXW, and  Guy Roels, ON6MU

Abstract: Today’s analog receivers have excellent dynamic range. Even lower-end analog radios will have a dynamic range of 80dB or more at a very affordable price. Transceivers built before 2000 are very nice to operate; they are great workhorses and get the job done. A lot of Hams love their old rigs and would keep them if were it not for all the new modes or the .bells and whistles. which the new ones offer.

Proceedings Paper


The P25 Network Exchange . Linking Amateur P25 Digital Repeaters Worldwide 

By David Krauss, NX4Y

Abstract: Digital voice modes have become widespread on the amateur radio VHF and UHF bands. Many different formats are in use, but the one used in most public safety applications, P25, seemed to languish for lack of an inexpensive linking system. The P25 Network Exchange (P25NX) was designed to bring this mode into the fold and unite pioneering amateurs across the world.

Proceedings PaperSlide Presentation


PiGate Emergency E-Mail Server 

By Mark Griffith, KD0QYN

Abstract: Imagine an emergency communications system that is very small, self-contained, easily deployed, requires minimal power, and can be managed by anyone with the skills to connect to a web site. Disaster victims can then use their own tablet computer, smartphone, or other device to connect to this device and send e-mail to their family and friends, or any other e-mail address in the world, or even send a text message to their brother.s phone.

Proceedings PaperSlide Presentation


D5 Integrating High Definition Digital Amateur Television Into Your Ham Station 

By Mel Whitten, K0PFX
Presentation Slides


IoT Anything from Anywhere With the Internet of Things 
By Scotty Cowling, WA2DFI
Presentation Slides


Multi Protocol Digital Networks 
By Uli Altvater, AG0X, and Torsten Schulze, DG1HT
Presentation Slides


RF in Motorway Tunnels 
By Darryl Smith, VK2TDS
Presentation Slides


The TAPR TICC Counter Measuriing Trillionths of a Second with an Arduino 
By John Ackerman, N8UR
Presentation Slides


WSPR and the Raspberry Pi 
By Scotty Cowling, WA2DFI
Presentation Slides