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DCC with TAPR by Steve Bible, N7HPR

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TAPR PSR #129 Summer 2015 President’s Corner DCC with TAPR By Steve Bible, N7HPR We are on the cusp of the annual ARRL-TAPR Digital Communications Conference (DCC) which will occur on the weekend of October 9-11 in Chicago, Illinois. Truth be told, the DCC is actually in Arlington Heights, Illinois, a northwestern suburb of The Windy City... specifically in the DoubleTree by Hilton Chicago - Arlington Heights <http://tinyurl.com/n2qv9zf>, which is conveniently located a mere 15-minute shuttle ride from O’Hare International Airport. By the way, if the DoubleTree sells out, there are four other hotels nearby: Courtyard by Marriott and Red Roof Inn are across the street from the DoubleTree, Motel 6 is west 1/2 mile and Holiday Inn Express is north 1/2 mile. DCC with TAPR 01 The DCC has two days of technical forums on Friday and Saturday and concurrent introductory DCC Saturday Night Banquet Speaker 02 sessions on Saturday. Saturday night, the banquet features ham radio writer Ward Silver, N0AX DCC Sunday Seminar Presenter 02 and the Sunday morning seminar will be a deep-dive into a technical topic presented by yours DCC Schedule At A Glance 03 truly. DCC Rooms At A Glance 03 The following three pages of PSR preview the DCC and everything you want and need to know DCC Detailed Schedule 04 about the amateur radio technical conference of the year. (Updated DCC information is available TASS Coaxial Relay System 06 on TAPR’s website at: http://www.tapr.org/dcc) Directors Election 07 I hope to see you in Chicago and 73, Know KD6OZH’s Work? 07 Steve, N7HPR Audio and Video Online 08 ### On the Net 08 Converting a Packet/Winlink Station to Raspberry Pi 09 Write Here! 12 What’s On Your Bench? 13 The Fine Print 17 Our Membership App 18 TAPR is a community that provides leadership and resources to radio amateurs for the purpose of advancing the radio art. PAGE 2 TAPR PSR #129 Summer 2015 Ward Silver, N0AX Steve Bible, N7HPR DCC Saturday Night Banquet Speaker DCC Sunday Seminar Presenter This year, the DCC’s Saturday Night TAPR President, Steve Bible, N7HPR, Banquet speaker will be Ward Silver, will conduct the DCC’s Sunday Seminar; N0AX; his topic will be “Ham Radio - his topic will be “3D Modeling for the Now What?” Radio Amateur.” Ward is the Lead Editor of the ARRL Back in the day, if you wanted to create Handbook and the ARRL Antenna Book. a technical drawing you used pens, He is the author of all three ARRL License pencils, parallels, rulers, protractors and Manuals and the Q&A Study Guides all manner of tools for what we called along with writing the monthly QST mechanical drafting. Today, we have column “Hands-On Radio.” The ham three dimensional (3D) modeling which radio detective mystery, “Ray Tracy: is drawing on a computer, or computer Zone of Iniquity” is his contribution to aided drafting or CAD. And today it is the dramatic side of ham radio. He serves easier than ever to learn how to 3D model as a Contributing Editor to the ARRL on your computer using a variety of free and consults on a variety of projects and and pay for programs. Why should you programs in the ARRL Contest Branch. You will also find his byline in the learn? Because 3D modeling is a valuable skill in your hobby and the popular Wiley “for Dummies” series; Ham Radio (now in its 2nd edition), work place. Two-Way Radios and Scanners, and Circuitbuilding Do-It-Yourself. In this Sunday Seminar, Steven Bible will introduce you to 3D An electrical engineer, he designed microprocessor-based products modeling for amateur radio enthusiasts (and other hobbies) using and medical devices for twenty years before beginning a second career Autodesk 123D Design, free software for the PC, Mac, or iPad. He will as a teacher and writer. Ward was first licensed in 1972 as a Novice also introduce you to Autodesk Inventor, a powerful 3D modeling tool (WN0GQP) and enjoys DXing, contesting, and participating on his to show you want you can do with paid subscriptions. To join in this local ARES emergency communications team. He is a founder of the seminar, and to follow along, download Autodesk 123D Design from World Radiosport Team Championships and is President of the YASME http://www.123dapp.com/design Foundation. ### Outside of ham radio, Ward plays the mandolin, dabbles in digital photography, and enjoys camping, canoeing, kayaking, and Ultimate Frisbee. ### TAPR is a community that provides leadership and resources to radio amateurs for the purpose of advancing the radio art. ARRL and TAPR 34th Annual Digital Communications Conference October 9-11, 2014 • Arlington Heights, IL (Chicago) http://www.tapr.org/dcc Schedule at a Glance Rooms at a Glance Friday, 9 Oct Registration – Corridor 8:00 AM Conference Registration and Demonstration Room – Oakwood A&B Demonstration Room Open 8:45 AM Welcome Friday 9:00 AM Technical Presentations Main Session Technical Presentations – Arbor C&D Noon Lunch Lunch – Arbor A&B 1:00 PM Technical Presentations DCC Social – Arbor C&D 5:30 PM Friday Night Social 10:00 PM Demonstration Room Closed Saturday Main Session Technical Presentations – Arbor C&D Saturday, 10 Oct Introductory Sessions Presentations – Oakwood C 8:00 AM Conference Registration and Lunch – Arbor A&B Demonstration Room Open Dinner Banquet – Arbor A&B 8:45 AM Welcome 9:00 AM Technical Presentations Noon Lunch Sunday 1:00 PM Technical Presentations Sunday Seminar – Arbor C&D 4:00 PM TAPR Membership Meeting 6:00 PM No Host Cash Bar 7:00 PM Dinner Banquet 10:00 PM Demonstration Room Closed Sunday, 11 Oct 8:00 AM Sunday Seminar Friday and Saturday Noon Main Lunches Sessions Saturday Banquet Introductory Sessions (Saturday) Demo Room Registration Preliminary 2015 DCC Conference Schedule Friday Saturday Sunday 8:00 AM Conference Registration Conference Registration Sunday Seminar Demonstration Room Open Demonstration Room Open 8:00 AM – 12:00 AM 8:45 AM Main Session Main Session Introductory Session Welcome and Introductions Welcome and Introductions 3D Modeling for the Radio Amateur 9:00 AM TASS Modulation – Demodulation Intro to Digital Voice Software Radio Standards Steven Bible, N7HPR John Ackermann, N8UR Alex Schwarz, VE7DXW John Hays, K7VE Guy Roels, ON6MU 9:45 AM Network Bandwidth Echosounding the Ionosphere with Considerations for Digital Voice SDR Systems Tom McDermott, N5EG Bryan Hoyer, K7UDR 10:30 AM Amateur Radio Voice and Data The AREDN Project (AREDN.org) FreeDV with SM1000 Network Interconnection Andre Hansen, K6AH Mel Whitten, KØPFX John Hays, K7VE 11:15 AM Challenges with the Open A Radio Server for all purposes; Hardware Model Talking to the Radio with your Bruce Perens, K6BP Browser Phil Theis, K3TUF Noon Lunch Lunch 1:00 PM Update on DATV-Express Exciter QRPi – A Raspberry Pi QRP TX D-ATV Using DVB-T for Digital-ATV Shield Design; Zoltán Dóczi, Mel Whitten, KØPFX HA7DCD Ken Konechy W6HHC Zoltan Doczi, HA7DCD 1:45 PM HF Receiver Testing: Issues & OpenWebRX: SDR Web Advances Application for the Masses Adam Farson, VA7OJ/AB4OJ Andras Retzler, HA7ILM 2:30 PM Arduino CAT Controller for An OS Independent and Device- HPSDR Independent Mobile Web Front Panel for Radio Transceivers John Melton, GØORX/N6LYT Bruce Perens, K6BP 3:15 PM ARDOP (Amateur Radio Digital SatNOGS: Satellite Networked Open Protocol): A next Open Ground Station generation digital protocol for Daniel J. White, Ph.D., ADØCQ HF and VHF/UHF Rick Muething, KN6KB Matthew Pitts, N8OHU John Wiseman, GM8BPQ 4:00 PM Play Time TAPR Annual Meeting in the Demonstration Room Play Time in the Demonstration Room 5:30 PM Friday Night Social 7:00 PM No-Host Cash Bar Dinner No-Host Cash Bar (6:00 PM) Dinner (7:00 PM) Banquet Speaker Ham Radio – Now What? Ward Silver, NØAX Awards Presentation Prize Drawings 10:00 PM Demonstration Room Closed PAGE 5 TAPR PSR #129 Summer 2015 Make your reservations now for three days of learning and enjoyment at the DoubleTree by Hilton Chicago – Arlington Heights hotel. The Digital Communications Conference schedule includes technical and introductory forums, demonstrations, a Saturday evening banquet and an in-depth Sunday seminar. This conference is for everyone with an interest in digital communications— beginner to expert. Call Tucson Amateur Packet Radio at: 972-671-8277, or go online to www.tapr.org/dcc 2015 TAPR Flyer HALF PAGE.indd 1 04/15/2015 10:34:42 AM TAPR is a community that provides leadership and resources to radio amateurs for the purpose of advancing the radio art. PAGE 6 TAPR PSR #129 Summer 2015 TASS Coaxial Relay System The TASS (Totally Awesome Switch System) Note these important points: is a general purpose DC-150 MHz relay- • The TASS-R board can handle 10W of RF based switch. The hardware is designed to be power. It is not intended for use with very generic with functionality implemented greater-than-QRP level signals. in an inexpensive microcontroller such as • The TASS-R board requires nine digital an Arduino. The TASS has many uses from control signals for full functionality. Thus, switching signal sources on a test bench or in an Arduino R3 or similar board can control a laboratory to selecting receive antennas and a single TASS-R, but may not have enough filters in a ham or SWL station. I/O lines available to support touchscreen, There are two boards in the system: the Ethernet, or other add-on components. TASS-R relay board, which does the mechanics • The TASS-SHIELD mates to an Arduino of signal switching and provides a very simple Mega 2560 processor, which provides 10-pin interface and the TASS-SHIELD enough I/O to support four TASS-R boards board for use with an Arduino Mega 2560 with lines left over for other uses.
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