Digital Modes • Experience with Digital Modes • APRS • NBEMS (FLDIGI) • WINLINK • DX MODES • CASE for DIGITAL EMCOMM • Voice Example Using NTS Traffic Protocols: • St
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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 -
Replacing 1200 Baud AFSK FM with PSK and Deploying DTN Iain Young [email protected]
Replacing 1200 Baud AFSK FM with PSK and Deploying DTN Iain Young [email protected] Agenda ● Introductions ● AX.25 Link Established! ● Exactly What Are We ● Adding TCP/UDP/IP Planning To Replace ? ● Adding DTN ● Why Replace It ? ● Results ● Computer Network Theory ● Conclusions ● How We Replaced It ● Future Experiments – Tools and Utilities Needed ● Acknowledgements – RF Setup and Maps Introductions ● Two major areas of focus – Replacing AX.25 1200 baud AFSK FM with PSK – Deploying DTN ● Who ? – Iain Young, G7III, MAXPAK Chairman – Dave Madew, M0DCM, MAXPAK Committee Member ● MAXPAK – Formed as a dedicated AX.25 Packet group for the Midlands – Constitution changed a couple of years ago, to include all digital modes So What Are We Replacing, And What Are We Not Replacing ? ● The AX.25 Physical Layer – In “Network” Parlance, Layer 1 – We mean the 1200 baud AFSK FM transmissions ● We are not replacing what the network world would call “Layer 2” or “The Data Link Layer” where you send and receive AX.25 frames to and from AX.25 addresses ● The mode we are all familiar with could be more formally described as AX.25 over 1200 baud AFSK FM ● The mode we will be creating could be more formally described as AX.25 over PSK Why Do This ? (1) ● 1200 baud AFSK FM is not exactly well known for it's effeciency, especially with regards to: – Spectrum usage, – Power requirements – Link budget ● Even it's 300 baud cousin is not particularly well thought of on HF, can be improved on and that's only a quarter the throughput! Why Do This ? (2) ● Plenty have claimed -
Overview of Ham Radio Software
OVERVIEW OF SOFTWARE FOR DIGITAL HAM RADIO Where to download free software: (often there are helpful help files also, so you might want to peruse around a bit more than just download) FLDIGI https://sourceforge.net/projects/fldigi/files/fldigi/fldigi- 3.23.15_setup.exe/download https://sourceforge.net/projects/fldigi/files/fldigi/ Downloading FLDIGI can be a bit tricky. Try going to the above page and then selecting (for Windows) the file ending with “setup.exe”. WINLINK EXPRESS http://www.winlink.org/sites/default/files/downloads/winlink_express_insta ll_1-4-2-0.zip UZ7HO http://uz7.ho.ua/modem_beta/soundmodem95.zip is the actual download. SOUNDMODEM.EXE WINDOWS BPQ http://www.cantab.net/users/john.wiseman/Downloads/LastestInstaller/ is the directory http://www.cantab.net/users/john.wiseman/Downloads/LastestInstaller/BPQ 32_6.0.13.1_20160927.exe is the actual download link Malware Detection Software: Many commercial virus checkers and malware detectors will consider very rare software to be automatically suspect, and delete or refuse to run or load it. You will have to find out how to tell your malware detection software to accept these quite- respectable programs. Every malware detection program works differently, so read your instructions! Digital Ham Radio has many facets. Characters from a computer become some version of “tones” going to a transmitter microphone input; audio from a receiver speaker output gets transformed into characters in a computer and possibly visible on the screen to a user. Software & hardware combine to make this magic happen. This paper will attempt to categorize the major software required to accomplish several communications. -
16.1 Digital “Modes”
Contents 16.1 Digital “Modes” 16.5 Networking Modes 16.1.1 Symbols, Baud, Bits and Bandwidth 16.5.1 OSI Networking Model 16.1.2 Error Detection and Correction 16.5.2 Connected and Connectionless 16.1.3 Data Representations Protocols 16.1.4 Compression Techniques 16.5.3 The Terminal Node Controller (TNC) 16.1.5 Compression vs. Encryption 16.5.4 PACTOR-I 16.2 Unstructured Digital Modes 16.5.5 PACTOR-II 16.2.1 Radioteletype (RTTY) 16.5.6 PACTOR-III 16.2.2 PSK31 16.5.7 G-TOR 16.2.3 MFSK16 16.5.8 CLOVER-II 16.2.4 DominoEX 16.5.9 CLOVER-2000 16.2.5 THROB 16.5.10 WINMOR 16.2.6 MT63 16.5.11 Packet Radio 16.2.7 Olivia 16.5.12 APRS 16.3 Fuzzy Modes 16.5.13 Winlink 2000 16.3.1 Facsimile (fax) 16.5.14 D-STAR 16.3.2 Slow-Scan TV (SSTV) 16.5.15 P25 16.3.3 Hellschreiber, Feld-Hell or Hell 16.6 Digital Mode Table 16.4 Structured Digital Modes 16.7 Glossary 16.4.1 FSK441 16.8 References and Bibliography 16.4.2 JT6M 16.4.3 JT65 16.4.4 WSPR 16.4.5 HF Digital Voice 16.4.6 ALE Chapter 16 — CD-ROM Content Supplemental Files • Table of digital mode characteristics (section 16.6) • ASCII and ITA2 code tables • Varicode tables for PSK31, MFSK16 and DominoEX • Tips for using FreeDV HF digital voice software by Mel Whitten, KØPFX Chapter 16 Digital Modes There is a broad array of digital modes to service various needs with more coming. -
Digital Mode Presentation
Digital Mode Presentation General Knowledge Digital communication is the exchange of digital data over the air • Email, Digital files, Keyboard-to-keyboard (chat), and others Protocols on today’s menu • RTTY, PACTOR, JT9/65, PSK31, FSQCall, Olivia Communication = digital mode if info is exchanged as individual characters encoded as digital bits. Example: A = ASCII 01000001 Some consider CW a digital mode. (an A = di-dah) Some modes are old, like radio-teletype, invented in the 1930’s. Some modes are new, like FSQ, invented in the mid-2015’s. Where? • Look at an amateur band chart (80 meters and 20 meters) • Look at a band plan (2-4, 2-17, 6-2) • Show CW, PSK31 (3.570 & 14.070) and RTTY • Look at http://bandplans.com Definitions Air Link – the part of the communication system involving radio transmissions and reception of signals. Bit – fundamental unit of data; a 0 or 1 in binary Bit rate – number of bits per second sent from one system to another. Symbol – signal characteristics that make up each distinct state of the transmitted signal • CW symbols = on and off • RTTY symbols are tones • Baudot or ASCII (simple methods) encode one bit in each symbol • Sophisticated codes use complex audio signals to carry the data and encode more than one bit in each symbol Baud – number of symbols per second that are sent from one system to another. Duty cycle – ratio of transmitting to total on/off time • Important to know duty cycle of mode because most transmitters are not designed to operate at full power for extended periods of time. -
Introduction to Ham Radio Digital Modes Including FT8
Introduction to Ham Radio Digital Modes Including FT8 Steve Ikler, KS3K October, 2018 Some slides and information in this presentation are used with permission from Dave LeVasseur, N0DL and the Lake Area Radio Klub (SD) Methods of Ham Radio Communication • CW (Morse Code) • Voice (SSB, FM, AM, Digital Voice) • Digital (binary, either on or off) – Uses computers, sound cards and software – Converts text messages into audio – The audio gets transmitted – Translates audio back into readable text Why Use Digital Modes • Efficient use of bandwidth • Efficient use of power • Even small, indoor or compromise antennas work well • Still usable when voice or cw cannot be heard • Very popular worldwide • Work DX with minimal station • Foreign accents not a problem – it’s all text • Can send images (SSTV, Winlink) Examples of Digital Modes • CW • RTTY (FSK and AFSK) • PSK (BPSK, QPSK, PSK31, PSK63, PSK125) • *-TOR (Amtor, Pactor, G-Tor, etc.) (Packet) • JT-Modes (Joe Taylor, K1JT) – JT65, JT9, WSPR, MSK144, FT8 • Others – Olivia, CONTESTIA, Feld Hell, MFSK, MT63 What Do You Need • Transceiver • Computer (Laptop/Desktop) • Audio Interface between computer and radio • Software http://www.tigertronics.com/ http://www.westmountainradio.com/ Digital Software • Ham Radio Deluxe (DM780) (Not Free) • Fldigi • WinWarbler (DXLabs) • WSJT-X • RMS Express (Winlink) • MMTTY • MixW Summary of PSK Former King-of-the-Hill • Phase-Shift Keying - Changes (modulates) the phase of a constant frequency reference signal (the carrier wave) • Also used by Wireless LANs, RFID, Bluetooth • BPSK and QPSK – Binary Phase-Shift Keying and Quadrature Phase-Shift Keying • BPSK much more popular • Conversational Mode – Instant Messaging without the internet Summary of FT8 • FT8 is named after its developers, Steven Franke, K9AN, and Joe Taylor, K1JT. -
GENERAL CLASS Chapter 6.1~6.6 Digital Modes
GENERAL CLASS Chapter 6.1~6.6 Digital Modes Chapter 6 Digital Modes 6.1 Intro to Digital Modes 6.2 Digital Basics 6.3 Character-Based Modes 6.4 Packet-Based Modes 6.5 Receive & Transmit Digital Modes 6.6 Digital Operating Procedures 1 6.1 Introduction to Digital Modes page 6-1 ∗ Digital communications modes exchange information using individual characters encoded as digital bits . ∗ “A” using CW is “di dah” ∗ “A” using ASCII is “01000001” ∗ Digital communications consists of two basic steps • Information encoding [FCC – 97.309] • Modulation formats ∗ Examples of Digital Communications Modes • RTTY, Packet (VHF/UHF), PSK31, JT-65/JT-9/FT-8/JS-8 …. Keyboard • PACTOR,WINMOR , Winlink…. Email and messaging • DSTAR (ICOM), System Fusion (Yaesu), AOR digital voice, WinDRM, FreeDV …. Voice via digital methods2 6.1 Introduction to Digital Modes page 6-1 ∗ Digital nodes are restricted to CW/Data segments of the HF bands • Usually found at the top end of the CW segment • Band plans define where digital modes may be found • Calling frequencies are typically at the lower end of the band and activity moves up with increased activity [G2E04, G2E08] ∗ 20 Meter band examples for digital mode operating frequencies • PSK-31 – 14.070 MHz; JT-65 – 14.076 MHz; JS8Call – 14.078 MHz • RTTY – 14.080 MHz ∗ Digital Modes are limited in the maximum data rates and signal bandwidths [FCC – 97.307] ∗ Information encoding and signal transmission protocols must be defined by FCC rules or be a publicly available method. ∗ Digital recording of Modes – http://www.kb9ukd.com/digital 3 6.1 Band Plan page 6-1 ∗ Table 6.1 Digital Signal Band Plan [G2E07] 4 6.1 Digital Mode Overview page 6-2~3 ∗ Radioteletype (RTTY ) sound similar to fax machine sound ∗ RTTY pronounced “ritty” is the original mode designed to copied and printed off the air by a mechanical teletype device. -
English Help File by Colin Bell, 2E0BPP. To
MixW Help Contents 25-Jul-2017 _________________________________________________________ *OVERVIEW OF MIXW 1. Welcome to MixW -- Information about the Program 2. Quick Start -- For experienced digital mode users 3. Registration -- How to become a registered user 4. Using the MixWHelp System -- Finding Information! *CONFIGURATION & SET UP 1. Configuration -- Software Settings 2. Basic Set Up -- PC/Tcvr Interface 3. PTT Circuit -- Hardware Connection 4. Configuring Macros -- Operating Efficiently *OPERATION 1. Starting Mixw - how to start Mixw 2. General Operation - for all modes 3. File Menu Items - short descriptions 4. Edit Menu Items - short descriptions 5. Options Menu Items - short descriptions 6. View Menu Items - short descriptions 7. Using the Status Bar - essential how-to 8. Logging and QSLing - essential how-to 9. Saving and Archiving - files changed for Mixw running *DIGITAL MODES CW FAX RTTY Amtor Packet Pactor PSK MFSK THROB FSK MT63 SSTV Hellschreiber Olivia Contestia RTTYM *APPENDICES 1. Cat Bar/Cat config and Bands.ini 2. Contest Operation 3. DX Cluster 4. FAQ's 5. File Descriptions 6. HF Digital Modes Band Plan 7. Keyboard Shortcuts 8. Macro Commands 9. MixW External Resources 10. MixW Installation 11. MixW Release History 12. QSLPRINT.EXE 13. Script Commands 14. The Eye of a Needle (TEOAN) 15. TNC Configuration and Operation 16. Using MixW Voice Keying 17. Using MixW with DXAtlas 18. Using MixW with other programs, DDE 19. Using the Spectrum Display 20. Using the Waterfall--Step by Step *Help Index *OVERVIEW OF MIXW _________________________________________________________ 1. Welcome to MixW -- Information about the Program 2. Quick Start -- For experienced digital mode users 3. Registration -- How to become a registered user 4. -
International Amateur Radio Union Region 1
International Amateur Radio Union Region 1 Europe, Middle East, Africa and Northern Asia Founded 1950 General Conference, Davos, 11 to 16 September 2005 Report of the proceedings at the Final Plenary of the IARU Region 1 Conference, Davos, 15 September 2005 Note: The President welcomed delegates and observers to the Final Plenary The Agenda was approved. Petar Miličić, 9A6A, presented the proposal for the venue of the next Conference in October 2008 in Cavtat, Croatia. The room costs at the 5* hotel would be Euro 65 or 75 per night, depending on whether it was a sea view room. Rizkallah Azrak, OD5RI, gave a short presentation on the offer to host the General Conference in Beirut. In response to a question, it was stated that the 5* hotel room costs could be as low as $100 US per night Ballot papers relating to the election of the EC were collected from Heads of Delegation, having been distributed the previous evening. The EBC retired to count the vote. The meeting then proceeded to consider the recommendations from the Conference Committees. Recommendations of Committee C2 – Finance and Credentials DV05_C2_Rec 01 That the societies whose names are appended hereto (Attached as Annex to Recommendation DV05_C2_Rec_01), comprising 47 societies, plus the nine societies represented by proxy be formally accredited to vote at the 2005 Davos IARU Region 1 Conference. Recommended by SRAL, seconded by NRRL, approved unanimously DV05_C2_Rec_02 - Paper DV05_C2_02 That the Region 1 audited financial statements for 2002, 2003 and 2004 be accepted. Recommended by SARL, seconded by DARC, approved unanimously In making this recommendation, the Committee recognised that as a result of the handover from the previous Treasurer, all had not been found to be in good order, but the Committee accepted the actions that had been taken by the new EC to regularise the position were in the best interests of good housekeeping. -
WSG Emcomm: Transmitting Digital Emergency
WSG EmComm Transmitting Digital Emergency Communications Couch, Johnson, Mullette WSG EmComm: Transmitting Digital Emergency Communications Instructional Plan Dan Couch, Sabrina Johnson, Michelle Mullette Boise State University Sp17 – OPWL 537 1 WSG EmComm Transmitting Digital Emergency Communications Couch, Johnson, Mullette Contents Performance Analysis ................................................................................................................ 1 Task Analysis ............................................................................................................................18 Learner Analysis .......................................................................................................................26 Objectives .................................................................................................................................31 Performance Assessment Instrument .......................................................................................35 Instructional Plan Worksheet .....................................................................................................47 Detailed Instructional Plan ........................................................................................................63 References ...............................................................................................................................82 Appendix ................................................................................................................................ -
Fun with HT's !!
Fun With Flags!! Fun With HT’s !! And Digital Modes WinLink Flmsg, Andflmsg Fldigi OBJECTIVE OF PRESENTATION • To provide a brief introduction and overview of some of the digital programs used in digital commutations. • WinLink, Fldigi, Flmsg, Andflmsg • Demonstrate some of the ways that are used to provide radio interface • Have fun with HT’s….. Demo digital modes. • Talk for 25 minutes. Play Radio and answer questions for 25 minutes. Scenario Barry (KD0RQU) and Dan (N0OLD) and their families are going camping!! Location: In the Boonies National Park. Barry is on site, Dan Will be up tomorrow as he had stuff to do. It’s Lunch Time!! However I Really Need To Talk With Dan!! • No Phone. • No Internet. • No repeaters. • I did bring my HF radio. (What a good HAM) • Dan will not be lugging a HF rig around on his errands. But, he will have his cell phone. • And I have WinLink!! • With Winlink I’m able to contact a Winlink RMS station in Texas. • The RMS station posts my e-mail to the WinLink server. • Dan is at Walmart and Winlink delivers my e-mail. BRING CAN OPENER!! Disaster Averted Meanwhile Back At Camp HOUSTON WE HAVE A PROBLEM!! I Got A Can Opener!! WinLink Modes • Telnet WinLink • Packet WinLink • Pactor WinLink • Robust Packet WinLink • Winmor WinLink • Iridium GO WinLink • • Packet P2P • Pactor P2P • Robust Packet P2P • Winmor P2P • Telnet P2P • • Pactor Radio-Only • Winmor Radio Only • Telnet Radio-Only • • Telnet Post Office Moving On!! I got TP!! Fldigi, Flmsg, Andflmsg FLIDIGI • Fldigi is one of the programs used by many for digital commutation. -
DIGITAL HAPPENINGS #19 (February 2014) by W0NAC (“Matt”)
DIGITAL HAPPENINGS #19 (February 2014) By W0NAC (“Matt”) I’m sure many of you have heard the quote (by Robert Burns – 1786) where he said: “The best laid schemes a’ mice an’ men gang aft agley” Well, Sharon and my plans certainly went ‘agley’ during our digital trip earlier in February through the Texas panhandle area. Things were going well until our antenna failed. What happened is that the insulator at the base (trailer hitch mount) cracked and allowed high voltage RF to burn its way through the crack to ground. Even though I attempted to tune many times, I just couldn’t get a stable tune condition. I tried a quick repair, but that didn’t solve the problem either. Since we had no spare antenna, we had to terminate our trip plans and head pretty much straight for home. We apologize to all who we disappointed, but we had no other choice. It was also frustrating for us since the weather was beautiful all that weekend and this was the maiden voyage for our new VW Passat TDI diesel. I’m sure that we lost a lot of good counties also! I am now in the process of re-designing the base mount with a much “beefier” insulator which a good friend will create using a 3-D printer, but the machining, printing, and parts acquisition will take a couple of weeks to complete. I now have an alternate antenna base mount on the trunk lid and a bunch of Ham Sticks for various bands so that if the main antenna should fail for any reason, we won’t be “dead in the water”! Before the antenna failure, we were able over Friday, Saturday, and Sunday to put out 7 counties in Colorado, 2 counties in Oklahoma, and 7 counties in Texas on SSB and various digital modes.