My Favorite HAM Radio Software
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PSK31, MT63, and Hellschreiber
Digital Modes: the Future of Amateur Radio? An introduction to PSK31, MT63, and Hellschreiber John DeGood NU3E Trenton Computer Festival Sun 7 May 2000 1 PSK31 • Invented by Peter Martinez, G3PLX • First PC soundcard version 26 Dec 1998 • Intended for live keyboard-to-keyboard QSO • Uses varicode character coding for 50 wpm • Easy to use and monitor • Gives very good copy under low Eb/No numbers and is thus suitable for QRP 2 PSK31 (continued) • Instead of using FSK or on/off keying, uses BPSK or QPSK with a Viterbi decoder • Is available for free for many platforms, including Windows with soundcard • Uses advanced DSP and narrow bandwidth (31.25 Hz) techniques • Tx duty cycle is 50% idle, 90% maximum • The greatest activity is around 14070.15 3 Bandwidth BPSK QPSK Spectra obtained with EvmSpec (from PSK31 homepage) 4 PSK31 Operation • BPSK is generally used for calling CQ and routine operation • QPSK gives much better performance with fading and flutter • QPSK has an 800 msec one-way delay, or 1.6 sec round-trip • PSK31 requires a synth or stable VFO rig – BPSK tuning needs to be within 8 Hz – QPSK tuning needs to be within 4 Hz 5 MT63 • Developed by Patwel Jolocha SP9VRC • Encodes information using 63 modulated tones • Sounds unusual, like a roaring noise • No connection process, as in AMTOR, Packet, or PACTOR • Outstanding performance when conditions are both weak and unstable. 6 MT63 (continued) • Spreads signal in time (several seconds) and space (500-2000 Hz) • Forward Error Correction (7-bit ASCII encoded into 64 bits using a Walsh -
47 CFR §97 - Rules of the Amateur Radio Service
47 CFR §97 - Rules of the Amateur Radio Service (updated January, 2014) Subpart A—General Provisions §97.1 Basis and purpose. The rules and regulations in this part are designed to provide an amateur radio service having a fundamental purpose as expressed in the following principles: (a) Recognition and enhancement of the value of the amateur service to the public as a voluntary noncommercial communication service, particularly with respect to providing emergency communications. (b) Continuation and extension of the amateur's proven ability to contribute to the advancement of the radio art. (c) Encouragement and improvement of the amateur service through rules which provide for advancing skills in both the communication and technical phases of the art. (d) Expansion of the existing reservoir within the amateur radio service of trained operators, technicians, and electronics experts. (e) Continuation and extension of the amateur's unique ability to enhance international goodwill. §97.3 Definitions. (a) The definitions of terms used in part 97 are: (1) Amateur operator. A person named in an amateur operator/primary license station grant on the ULS consolidated licensee database to be the control operator of an amateur station. (2) Amateur radio services. The amateur service, the amateur-satellite service and the radio amateur civil emergency service. (4) Amateur service. A radiocommunication service for the purpose of self-training, intercommunication and technical investigations carried out by amateurs, that is, duly authorized persons interested in radio technique solely with a personal aim and without pecuniary interest. (5) Amateur station. A station in an amateur radio service consisting of the apparatus necessary for carrying on radiocommunications. -
Digital Communications
CCARC - BPRA Ham Basics 2010 ---------- Welcome! Digital Communications “AMATEUR RADIO IS THE HOBBY… EMERGENCY COMMUNICATIONS IS A COMMITMENT…” 1 Ham Basics 2010 K7GJT‐ Digital Communications 2 Subjects to cover • Amateur Radio Digital Mode History • Two Basic Digital Technologies • TNC Technology, Modes & Software • Soundcard Technology, Modes & Software • Accuracy • Making the connection without wires • Making the connection with wires • Dig ita l MiMessaging Systems • Making the “over‐the‐air” connection with radio Ham Basics 2010 K7GJT‐ Digital Communications 3 Amateur Radio Digital Mode History • The ‘Original Digital’ mode – Presence or absence of carrier (1, 0, 1, 0, 1, etc.) – CW! Ham Basics 2010 K7GJT‐ Digital Communications 4 Amateur Radio Digital Mode History • Started as Mechanical Hardware Specific – 1849 Landline based teleprinter operations began – 1920 Rudolf Hell invented Hellschreiber – 1930’s RTTY (Radio TeleTYpp)e) [y[Military RATT/]/SCRT] • 1980’s started computerizing the RTTY signals • Prior to 1995 the only ‘legal’ HF digital mode that was authorized by the FCC were those that used the standard Baudot codes; ege.g. RTTY Ham Basics 2010 K7GJT‐ Digital Communications 5 Amateur Radio Digital Mode History • In 1995, the FCC opened to door to other modes (ASCII based) and declared that any new mode coding were legal as long as they were published in the public domain. • And the “Barn Door” opened! Ham Basics 2010 K7GJT‐ Digital Communications 6 Amateur Radio Digital Modes Ham Basics 2010 K7GJT‐ Digital Communications -
Winwarbler 7.9.2
WinWarbler 7.9.2 Overview .....................................................................................................................................................................2 Prerequisites ...............................................................................................................................................................3 Download and Installation ..........................................................................................................................................4 Configuration ..............................................................................................................................................................5 General Settings .........................................................................................................................................................7 Display Settings ....................................................................................................................................................... 10 Push-to-talk (PTT) Settings ..................................................................................................................................... 13 Soundcard Settings ................................................................................................................................................. 15 Configuring Multiple Soundcards ............................................................................................................................. 16 Phone Settings -
Executive Summary
Meeting: Study session Meeting date: September 14, 2020 Written report: 7 Executive summary Title: Comcast franchise renewal update Recommended action: **Due to the COVID-19 emergency declaration, this item is considered essential business and is Categorized as Time-Sensitive** • The report is presented for information only. No action is required. Policy consideration: Is the progress on the franchise renewal in keeping with council expectations? Summary: The city’s current franchise agreement with Comcast expires in January 2021. Upon receipt of Comcast’s request to renew its cable franchise in the city, the city notified Comcast of its intent to conduct informal renewal negotiations in accordance with the federal Cable Act. To prepare for negotiations, the city evaluated Comcast’s past performance under the existing franchise and conducted a needs assessment to determine the future cable-related Public- Educational-Government (PEG) community needs and interests of the city. This is the criteria prescribed by the Cable Act. Following the conclusion of the needs assessment, the city’s cable franchise attorney developed a draft franchise agreement, which the city plans to submit to Comcast for consideration. Financial or budget considerations: The final franchise agreement will determine the franchise fee, based on a percentage of gross revenues derived from cable service and PEG (public- educational-government) capital funding to be received by the city over the next franchise term, expected to be 10 years. Strategic priority consideration: St. Louis Park is committed to creating opportunities to build social capital through community engagement. Supporting documents: Community needs assessment report and appendices October 28, 2019 council study session report Prepared by: Jacque Smith, communications and marketing manager Reviewed by: Clint Pires, chief information officer Brian Grogan, attorney at law, Moss & Barnett Approved by: Tom Harmening, city manager Study session meeting of Sept. -
The Beginner's Handbook of Amateur Radio
FM_Laster 9/25/01 12:46 PM Page i THE BEGINNER’S HANDBOOK OF AMATEUR RADIO This page intentionally left blank. FM_Laster 9/25/01 12:46 PM Page iii THE BEGINNER’S HANDBOOK OF AMATEUR RADIO Clay Laster, W5ZPV FOURTH EDITION McGraw-Hill New York San Francisco Washington, D.C. Auckland Bogotá Caracas Lisbon London Madrid Mexico City Milan Montreal New Delhi San Juan Singapore Sydney Tokyo Toronto McGraw-Hill abc Copyright © 2001 by The McGraw-Hill Companies. All rights reserved. Manufactured in the United States of America. Except as per- mitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher. 0-07-139550-4 The material in this eBook also appears in the print version of this title: 0-07-136187-1. All trademarks are trademarks of their respective owners. Rather than put a trademark symbol after every occurrence of a trade- marked name, we use names in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringe- ment of the trademark. Where such designations appear in this book, they have been printed with initial caps. McGraw-Hill eBooks are available at special quantity discounts to use as premiums and sales promotions, or for use in corporate training programs. For more information, please contact George Hoare, Special Sales, at [email protected] or (212) 904-4069. TERMS OF USE This is a copyrighted work and The McGraw-Hill Companies, Inc. -
Kenwood TH-D74A/E Operating Tips
1 Copyrights for this Manual JVCKENWOOD Corporation shall own all copyrights and intellectual properties for the product and the manuals, help texts and relevant documents attached to the product or the optional software. A user is required to obtain approval from JVCKENWOOD Corporation, in writing, prior to redistributing this document on a personal web page or via packet communication. A user is prohibited from assigning, renting, leasing or reselling the document. JVCKENWOOD Corporation does not warrant that quality and functions described in this manual comply with each user’s purpose of use and, unless specifically described in this manual, JVCKENWOOD Corporation shall be free from any responsibility for any defects and indemnities for any damages or losses. Software Copyrights The title to and ownership of copyrights for software, including but not limited to the firmware and optional software that may be distributed individually, are reserved for JVCKENWOOD Corporation. The firmware shall mean the software which can be embedded in KENWOOD product memories for proper operation. Any modifying, reverse engineering, copying, reproducing or disclosing on an Internet website of the software is strictly prohibited. A user is required to obtain approval from JVCKENWOOD Corporation, in writing, prior to redistributing this manual on a personal web page or via packet communication. Furthermore, any reselling, assigning or transferring of the software is also strictly prohibited without embedding the software in KENWOOD product memories. Copyrights for recorded Audio The software embedded in this transceiver consists of a multiple number of and individual software components. Title to and ownership of copyrights for each software component is reserved for JVCKENWOOD Corporation and the respective bona fide holder. -
I William G Radicic, Amateur Radio Call Sign NS0A, Extra Class, License
I William G Radicic, amateur radio call sign NS0A, Extra class, license - endorse the position of the Members of this Board of Directors who unanimously are in support of the Commission’s proposal and encourage the elimination of the outdated and symbol rate limits. Opponents to WD Docket No. 16-239 have responded to internet and social media campaigns led by Theodore Rappaport, resulting in a multitude of comments that echo false or misleading technical points, driven by highly emotional arguments about “national security, crime and terrorism”. We address these arguments with the documented realities of science and logic in hopes that the Commission will find them balanced, informed, and trustworthy counterpoints for good decision making. The HF Symbol Rate Limitation in § 97.307(3) Should be Removed The current 300 baud symbol rate limitation was instituted around 1980 by the Commission as a mechanism to manage HF digital modes (both FEC and ARQ) that would be compatible with typical HF signal widths in use. The most common amateur HF digital modes in use then were AMTOR (similar to SITOR), later refined as Pactor 1 and HF packet (300 baud FSK). Since then, technical advancements in modulation, coding technology and Digital Signal Processing (DSP) now make it possible to implement significantly faster, more robust digital protocols with better spectrum efficiency (e.g. PSK31/63, MT63, Pactor 2, Pactor 3, WINMOR, ARDOP, VARA, Pactor 4, and other popular amateur modes). These modes are possible and affordable due primarily to the significant advancements in digital signal processing, cost reductions in computers, sound cards, and DSP processing chips since the original 300 baud symbol rate restriction was instituted. -
Cable Modem/Router with High-Performance Wireless 802.11Ac
DOCSIS 3.0 Model 5363 Cable Modem/Router with High-Performance Wireless 802.11ac Zoom Model 5363 integrates a DOCSIS 3.0 8x4 cable modem and a 4-port GigE router that features very fast wireless 802.11ac technology. Model 5363’s 2.4 GHz and 5.0 GHz 3x3 wireless channels each use a Broadcom BCM4360 integrated circuit with advanced beamforming to achieve expanded range, reduced interference from neighbors’ wireless networks, and speeds up to 1900 Mbps. Highlights n DOCSIS 3.0/2.0/1.1 maximizes performance and compatibility n 8 downstream and 4 upstream cable modem channels for downstream data rates up to 343 Mbps and upstream data rates up to 123 Mbps n Advanced 11ac 3x3 wireless for very high performance - Up to 600 Mbps* at 2.4 GHz with Broadcom TurboQAM - Up to 1300 Mbps* at 5.0 GHz with Dynamic Frequency Selection (DFS) included and on; up to 488 Mbps maximum with DFS off** - 2.4 and 5.0 GHz radios, each with Broadcom BCM4360, can operate concurrently - AnyBeam at both 2.4 and 5.0 GHz. AnyBeam beamforming focuses the wireless signal on the wireless client even if that smartphone, computer, or other WiFi-capable device doesn’t have beamforming technology. - Explicit beamforming at 5.0 GHz provides enhanced beamforming for wireless clients that include explicit beamforming capability - Uses three internal dual-band antennas orthogonally placed - Transmit power near but not above FCC limits on per channel power n 1 GHz Full-band Capture Digital Tuning for high performance and flexible choice of data channels by service providers n 4 GigE -
California Interoperability Field Operations Guide (FOG)
Cal-IFOG 1 June 2020 Letter of Introduction Since the first version of the California Interoperability Field Operations Guide (Cal-IFOG) was published in 2010, it has become an indispensable tool in day-to-day Public Safety communications and it encourages more efficient and effective use of our limited mutual aid spectrum. The Cal IFOG is a living document that is updated through the feedback provided by every operational area throughout California. Please accept my sincere gratitude for your efforts and I understand that without your input this update would not have been possible. The purpose of the Cal-IFOG is to provide a single source document for the usage guidelines of the statewide and National Interoperability channels in support of the California Statewide Communication Interoperability Plan (CalSCIP). Please keep in mind that the mutual aid frequencies are open to all emergency responders, who are encouraged to program their radios as appropriate and authorized. As always, Federal Communications Commission (FCC) rules and regulations with regards to licensing and operations should be followed. Every effort was made to ensure the information presented is accurate. In the event you do find an error, please contact either the California Statewide Interoperability Executive Committee (CalSIEC), your Planning Area, or the Statewide Interoperability Coordinator (SWIC), and they will ensure the updates make it into the next version. Thank you to all that contributed to the development of the Cal-IFOG and those dedicated to ensuring that it stays relevant for years to come. Budge Currier, Statewide Interoperability Coordinator Hank O’Neill, Deputy Statewide Interoperability Coordinator This page intentionally left blank Cal-IFOG 3 June 2020 Table of Contents Chapter 1 - About the Cal-IFOG ................. -
HF Digital Communications
HF Digital Communications How to work those strange sounds you hear on the air John Clements KC9ON Stephen H. Smith WA8LMF Joe Miller KJ8O John Mathieson AC8JW Brian Johnston W8TFI 1 May 2014 Contents Introductions Why Digital? Digital Modes of Operation Hardware : Radio, Computer, and interfaces Contents Software Tips and Tricks Q&A Introductions John Clements KC9ON Licensed in 1979 at age 16 Retired from electronics manufacturing and IT systems Active experimenter and home brewer [email protected] Introductions Stephen Smith WA8LMF Land-Mobile-Radio Systems & Field Engineer Ham since 1964 [email protected] Introductions Joe Miller KJ8O SWL since 1967, first licensed in 2006 and collects QSL cards President of OCARS (W8TNO) Certified Public Accountant [email protected] Introductions Brian Johnston W8TFI Licensed in 1976 Computer operator for a major newspaper Avid experimenter and home brewer [email protected] Introductions John Mathieson AC8JW Licensed since about 2005 Active in CW and digital modes [email protected] Why Digital? Send and receive text, images, data, and audio Some modes work very well in noisy and weak signal environments If you can’t hear them you can’t work them is no longer true! Why Digital? Some modes can provide error free or reduced error transmissions. Good for Emergency Communications Why Digital? Many modes use smaller bandwidths than voice 97.1(b) contribute to the advancement of the radio art. 97.313(a) use the minimum transmitter power necessary to carry out the desired -
DM-780 Users Guide Ham Radio Deluxe V6.0
HRD Software LLC DM-780 Users Guide Ham Radio Deluxe V6.0 By Tim Browning (KB3NPH) 2013 HRD Software LLC DM-780 Users Guide Table of Contents Overview ....................................................................................................................................................... 3 Audio Interfacing........................................................................................................................................... 4 Program Option Descriptions ....................................................................................................................... 8 Getting Started ............................................................................................................................................ 10 QSO Tag and My Station Set up .............................................................................................................. 11 My Station Set Up ................................................................................................................................... 12 Default Display ............................................................................................................................................ 14 Main Display with Waterfall ................................................................................................................... 14 Main Display with ALE and Modes Panes ............................................................................................... 15 Modes, Tags and Macros Panes .............................................................................................................