Inner Circle Newsletter: Summer 2024

A Sizzling Summer Summary prepared just for you!

Read on for highlights from all our technical and regulatory open source digital radio work. ORI’s work directly benefits amateur radio, provides educational and professional development opportunities for people all over the world, and puts ethics and good governance first.

Opulent Voice Flying High

Opulent Voice is an open source high bitrate digital voice (and data) protocol. It’s what we are using for our native digital uplink protocol for ORI’s broadband microwave digital satellite transponder project. Opulent Voice has excellent voice quality, putting it in a completely different category than low bitrate digital communications products such as D-Star, Yaesu System Fusion, and DMR.

Opulent voice switches between high resolution voice and data without requiring the operator to switch to a separate packet mode. Opulent voice also handles keyboard chat and digital file transmission. Seamless integration of different data types, using modern digital communication techniques, differentiates Opulent Voice from any other amateur radio protocol.

Opulent Voice will fly on the University of Puerto Rico’s RockSat-X launch on 13 August 2024. It’s been a very positive experience working with the students and faculty at the University.

An implementation on FPGA for the PLUTO SDR is well underway, with a active international team delivering quality results. This implementation will not only turn your PLUTO SDR into an Opulent Voice transceiver, but it will have remote operation functionality.

Hear what Opulent Voice sounds like by following the links in an earlier update at https://www.openresearch.institute/2022/07/30/opulent-voice-digital-voice-and-data-protocol-update/

We’ve come quite a long way in less than two years! The FPGA implementation upgrades the modulation from 4-ary frequency shift keying to minimum shift keying, and increases forward error correction performance and flexibility.

HAMCON:ZION 2024 is This Week!

Please visit us at HAMCON:ZION 2024 this weekend, 12-13 July 2024 in St. George, Utah, USA.

The event website is https://www.hamconzion.com/

ORI will have a club booth at the event. We opened our space to QRZ.com (https://www.qrz.com/) and Deep Space Exploration Society (https://dses.science/). This combined exhibit is a one-stop shop for the best in community, technical, and citizen science amateur radio activity.

We have a volunteer presenting on Artificial Intelligence and Machine Learning in Amateur Radio. The talk opens with a brief summary of the history of our relationship with created intelligence and then explores case studies of the use of artificial intelligence and machine learning in amateur radio. Talk is 1pm on Friday in Entrada B.

Open Research Institute at DEFCON32

We will present an Open Source Showcase at DEFCON in the Radio Frequency Village 12-13 August 2024, with accessible exhibits and demonstrations. Here is the list of scheduled project demonstrations.

Regulatory Efforts: ORI works hard for open source digital radio work and moves technology from proprietary and controlled to open and free in intelligent and mutually beneficial ways. Our work on ITAR, EAR, Debris Mitigation, AI/ML, and Synthetic Aperture Radar will be presented and explained. Find out more at https://github.com/OpenResearchInstitute/documents/tree/master/Regulatory

Ribbit: this open source communications protocol uses the highest performance error correction and modern techniques to turn any analog radio into a digital text terminal. No wires, no extra equipment.. Learn how to use this communications system and get involved in building a truly innovative open source tactical radio service. Find out more at https://www.ribbitradio.org

Satellite: ORI has the world’s first and only open source HEO/GEO communications satellite project. All working parts of the transponder project will be demonstrated, from Opulent Voice to antenna designs.

The Dumbbell antenna: We have an HF antenna design based on a highly effective inductive loading technique first written about in 1958. Learn about this antenna and find out how to make your own. Repository can be found at https://github.com/OpenResearchInstitute/dumbbell

RFBitBanger: an HF QRP system and novel digital protocol called SCAMP. Kit information and updates will be available. Get your Batch 2 kit today at https://www.ebay.com/itm/364783754396

Radar: Our regulatory and technical work in synthetic aperture radar will be demonstrated. One of our volunteers will be giving a talk about open source synthetic aperture radar in the RF Village speakers track. Here is the abstract.

Synthetic Aperture Radar (SAR) is one of the most useful and interesting techniques in radar, providing high resolution radar satellite images from relatively small satellites. SAR is not limited by the time of day or by atmospheric conditions. It complements satellite photography and other remote sensing techniques, revealing activity on the Earth that would otherwise be hidden. How does the magic happen? This talk will explain the basics of SAR in an accessible and friendly way. That’s the good news.

The bad news? SAR is controlled by ITAR, the International Traffic in Arms Regulations, and is listed in the USML, the United States Munitions List. ITAR regulates the export of defense articles and services and is administered by the US State Department. This includes both products and services as well as technical data. Such as, catalogs of high resolution radar imagary. The articles and services regulated by ITAR are identified in the USML. If ITAR doesn’t get you, then EAR just might. The Export Administration Regulations (EAR) are administered by the US Commerce Department, and items are listed on a Commerce Control List (CCL). Commercial products and services and dual-use items that are not subject to ITAR could be regulated by EAR. Even if you are free of ITAR and EAR, you may still be regulated by yet another agency, such as the FCC.

Regulation of SAR chills commercial activity, creating costly and time-consuming burdens. But why does any of this matter to signals hackers? Because technology has overtaken the rules, and devices used by enthusiasts, researchers, students, and hackers are increasingly likely to have enough capability to fall into export-controlled categories. The penalties are harsh. Fear of running afoul of ITAR is enough to stop a promising open source project in its tracks.

Is there a way forward? Yes. ITAR has a public domain carve out. Information that is published and that is generally accessible or available to the public is excluded from control as ITAR technical data. That’s great in theory, but how can we increase our confidence that we are interpreting these rules correctly? How can we use and build upon these rules, so that our community can learn and practice modern radio techniques with reduced fear and risk? Can we contribute towards regulatory relief when it comes to SAR? We will describe the process, report on the progress, and enumerate the challenges and roadblocks.

RFBitBanger Batch 2 Kits Available

Kits are available at our eBay store at this link https://www.ebay.com/itm/364783754396

Be a part of the future with a prototype Batch 2 kit build of the RFBitBanger, a low-power high-frequency digital radio by Dr. Daniel Marks KW4TI. Presented by Open Research Institute, this kit is designed to produce 4 watts of power and opens up a new digital protocol called SCAMP.

SCAMP Is now available in FLDigi!

Source code and extensive instructions can be found at https://github.com/profdc9/fldigi

Your donation in exchange for this kit directly enables the further development of an innovative Class E amplifier based radio design. It has a display, button menu navigation, and keyboard connection for keyboard modes and keyboard-enabled navigation. This radio can be taken portable or used in a case. If you have a 3d printer, then Dr. Marks has a design ready for you to print in the repository linked below.

  • Built-in digital modes: CW, RTTY, SCAMP (FSK and OOK, multiple speeds)
  • Key jack supports straight keys and iambic paddles
  • Open Source hardware and firmware, Arduino UNO compatible https://github.com/profdc9/RFBitBanger
  • External sound-card FSK digital modes supported (including FT4/FT8)
  • Experimental SSB support
  • Serial port support (2400 baud) for send and receive in keyboard modes

SCAMP is a new protocol that allows keyboard-to-keyboard contacts with a digital protocol that has excellent connection performance. See Dr. Marks presentation about RFBitBanger at QSO Today Academy in September 2023 to learn more about SCAMP and the RFBitBanger project. Link below:

All surface mount parts on the main board are pre-installed at the factory. All the through-hole parts you need to complete the radio are provided for you to solder yourself.

Builder’s notes and photos of all the components to help you identify and install them can be found here:

https://github.com/OpenResearchInstitute/RFBitBanger-kit/tree/main/batch2

If you don’t know how to wind toroids or solder surface mount capacitors, this is an excellent kit to learn on. There are just six toroids on the main board, and two on each band pass filter board. You can build just one band pass filter board and operate on a single band, or you can build an assortment. We provide 12 filter boards, enough toroids to build any 9 filters, and a supply of capacitors that will let you build those 9 filters for 9 different HF ham bands. These capacitors are size 1206, which is the largest common size for SMT capacitors and the easiest to solder manually. All you’ll need is a pair of tweezers and your regular soldering iron and solder. We provide detailed instructions on winding the toroids and soldering the capacitors. You get spare filter boards to experiment with.

Friendly Support is provided through a dedicated Open Research Institute Slack channel.

Instructions on how to join this community are here:

https://www.facebook.com/openresearchinstitute https://www.instagram.com/open_research_institute/
https://x.com/OpenResearchIns

400 Subscriber Milestone on YouTube

Thank you to everyone reading this that has supported ORI and how we publish our work on YouTube.

I know YouTube is not for everyone, but it is an effective way to communicate what we do, what challenges we face, and it lets people know there’s a community out there 1) doing things that they might find wonderful and 2) is worth hearing more about.

We have 400 subscribers, which is a bit of a milestone. This is a lot for a very technical all-volunteer organization that devotes its time supporting and promoting project work, while staying firmly in the background.

Our proudest moments are when projects succeed and are recognized on their own merits, under their own name, and under their own branding. Ribbit, RFBitBanger, Haifuraiya, a variety of published Open Source FPGA work, FPGA training, Opulent Voice, Versatuner, Dumbbell, actively participating in IEEE, FCC TAC membership, Remote Labs, our many regulatory successes, and our active and successful mentoring in professional and academic settings – these are all clear indications that we’re on the right track and doing a great job.

Not explicitly mentioned are the many places we’ve helped projects succeed behind the scenes, around the world.

We are committed to an altruistic approach that delivers clear value to project work. This approach has been abused only once, by one organization.

Being accountable, open, and successful is the cost of doing our type of business. This is a price happily paid.

Thank you for being part of it!

https://www.youtube.com/c/OpenResearchInstituteInc

Inner Circle Newsletter February 2023

Greetings all! Welcome to the February 2023 issue of the Inner Circle Newsletter from Open Research Institute.

Join the Inner Circle

Sign up for this newsletter at http://eepurl.com/h_hYzL

Thank you so much for your time, attention, and support. We appreciate you, we welcome your feedback, and we are dedicated to serving the community to the best of our abilities. You can get in touch with the ORI board of directors directly at hello@operesearch.institute.

A Puzzle Just For Fun

Here’s a puzzle. Chicken Nuggets have been on the menu at the international fast food chain McDonald’s since 1983.

If Chicken McNuggets are sold in packs of 6, 9, or 20, then what is the largest number of nuggets that cannot be ordered?

Answer is at the end of this newsletter!

Projects

Our volunteer teams have been busy and successful, and our project lineup has grown.

Regulatory Efforts: ORI works hard to promote and defend open source digital radio work. We do all we can to help move technology from proprietary and controlled to open and free. Our work on ITAR, EAR, Debris Mitigation, and AI/ML are where we have spent most of our time over the past two years. We were a member of the Technological Advisory Committee for the US Federal Communications Commission in 2022, and co-chaired the Safe Uses of AI/ML Subworking Group. We have received consistently positive reviews for all of our work, and there has been increasing use of the results.

Ribbit: this open source communications protocol uses the highest performance error correction and modern techniques available to turn any analog radio into an efficient and useful digital text terminal. No wires, no extra equipment. The only thing you’ll need to use it is the free open source Android or IoS app on your phone. Learn how to use this communications system and get involved in building a truly innovative open source tactical radio service by visiting https://ribbitradio.org

Join Ribbit mailing lists at: https://www.openresearch.institute/mailing-lists/

Amateur Satellite: ORI has the world’s first and only open source HEO/GEO communications satellite program, called Haifuraiya. We will demonstrate all working parts of the transponder project at DEFCON 31, where broadband digital communications and open source electric propulsion will be featured. Find out how to support or join this and other teams at https://openresearch.institute/getting-started

AmbaSat for 70 cm: We’ve redesigned the AmbaSat board to move it from 915 MHz to 70 cm and it will be flown on a sounding rocket this year. With increasing interest in LoRa for both space and terrestrial use, this has proven to be a popular and useful project. The design has been adapted for applications in India and Japan.

Opulent Voice: a digital protocol that seamlessly combines high fidelity voice and data, using modern forward error correction, authentication and authorization, and efficient minimum frequency shift keying modulation. Opulent Voice will be flown on a sounding rocket this year and it is the native digital uplink protocol for Haifuraiya. Completely open with the high quality voice we deserve to hear. Due to the bandwidth requirements of the 16kHz OPUS codec, Opulent Voice can be used on 70cm and above ham bands, or anywhere else where the modest bandwidth requirements can be met.

Remote Labs: We have two remotely accessible workbenches for FPGA development, with Xilinx 7000 and Xilinx Ultrascale+ development boards as the focus. We also have several SDRs and radio utility devices available through virtual machine access. The 7000 series development board has an Analog Devices ADRV9371 radio system attached, and that has enabled a number of open source FPGA products to be published. This is a unique resource that has produced a lot of good work and is constantly being improved and updated. In addition to the development boards, the laboratory has a network accessible spectrum analyzer, an oscilloscope with logic analyzer extension, power supplies, frequency and power counters, and dedicated human resources available to help students, volunteers, or professionals contribute to open source work. Help it be more useful by spreading the word about ORI Remote Labs.

Equipment available: https://github.com/phase4ground/documents/tree/master/Remote_Labs/Test_Equipment
How to get an account: https://github.com/phase4ground/documents/blob/master/Remote_Labs/ORI-New-User-Setup.md
Using FPGA Development Stations: https://github.com/phase4ground/documents/blob/master/Remote_Labs/Working-With-FPGAs.md

Versatune: amateur digital television next generation hardware and software product. It is open source and affordable. We have committed engineering resources to support Versatune and are very excited about how things are going. Some of the Versatune team will be at Hamvention 2023 in Xenia, OH, USA, and it will be represented at DEFCON in August 2023.

HF antennas: We have a novel foldable antenna design for space and terrestrial use. The hardware prototype will be demonstrated at DEFCON. This design manipulates radiation resistance to produce best-of-class results. Think you can’t do 160m without an enormous antenna? Think again.

HF QRP: Coming soon, an exciting HF QRP digital radio board and protocol. The hardware prototypes will be demonstrated at DEFCON. What might happen when we combine the HF digital radio with the novel foldable antenna? We think you’ll be delighted.

Battery Matching Curves: are you available to mentor a college student interested in learning how to match up charge and discharge curves from NiCd cells in order to create battery packs? These packs would then be tested and/or deployed in the field. Our student volunteer has collected the data and is looking to learn how to use Jupyter Notebooks to select the cells to create battery packs.

Logistics

We’re growing and adapting!

We will be changing our GitHub project name from Phase4Ground to Open Research Institute very soon. Phase4Space GitHub project will change to Haifuraiya, which is the program name for our HEO/GEO design. These changes better reflect the content and purpose of the 64 repositories that span everything from important historical archives to open source music to the most modern open source encoders available.

We have a very well-qualified applicant for our open board of directors position. We would like to invite interested community members to consider applying to ORI in order to expand the board beyond this filled position in order to take us from our current five members to seven. Given our continuing growth, a larger leadership team would ensure continued smooth operations. These positions are unpaid, engaging, and can be demanding. The most important skill set is a strong sense of ethics and service.

Fundraising and Grants

We’ve applied for the GitHub Accelerator Program (Remote Labs) and the IEEE Innovation Fund (Polar Codes in Ribbit). If you have a recommendation for ORI in terms of partnerships or collaboration, please let us know at hello@openresearch.institute

Support ORI financially directly through the website https://openresearch.institute. There is a PayPal donation widget at the bottom of almost every page. Donations can be directed to any project, or to general operations. ORI has a very low overhead, with most projects coming in under 5%.

Support our open source propulsion work and get a cool desk toy at https://us.commitchange.com/ca/san-diego/open-research-institute/campaigns/where-will-we-go-next

We’ve raised enough money to cover materials for machining the engine parts. The next step is to raise enough money to pay for the electronics. Please help spread the word!

Thanks to our wonderful community, we have employee matching in place at Microsoft and Qualcomm. If you have an employee matching program at your work, and you think ORI would fit in, please consider nominating us. Our EIN is EIN: 82-3945232

Events

Where can you meet up with ORI people?

QSO Today Ham Expo

We support and attend QSO Today Ham Expo, held online 25-26 March 2023. The theme of this event is “New License, Now What?” and focuses on people new to amateur radio.

Our page for QSO Today Ham Expo content is https://www.openresearch.institute/qso-today-ham-expo-technical-demonstrations/

IMS2023

Join us at the amateur radio social at the International Microwave Symposium (IMS2023) on Tuesday 13 June 2023 in San Diego, CA, USA at 6pm. It will be held in a beautiful outdoor venue with food and drink provided. The easiest way to register for this event is to purchase an exhibition badge and then sign up for the social. https://ims-ieee.org/ is the event website.

DEFCON

We are getting ready for our biggest event of the year. We have proposed an in-person Open Source Showcase to RF Village for DEFCON 31 in Las Vegas, Nevada, USA from 10 – 13 August 2023.

Our page for the event, with all the latest and greatest details, can be found at https://www.openresearch.institute/defcon/

Want to help at DEFCON? Please visit https://openresearch.institute/getting-started and let us know!

IWRC 2023

IEEE wants to bring together all participants to take full advantage of CHIPS Act funding. IEEE will have an Innovative Workforce Resources Conference in Little Rock, AR 13-14 September. There will be a reception at the Clinton Presidential Library, and attendees will enjoy the best BBQ in the country. The National Science Foundation requires that a certain percentage of funding has to be spent in states that don’t get their fair share of research money. The goal of this conference is to pull together small researchers from small business like ORI and do research, with Arkansas as a focus.

We couldn’t agree more. After all, we are putting a lot of time and energy into Remote Labs South, located just outside Little Rock, AR. Bringing innovative open source digital radio work to students, workers, and volunteers that need it the most simply makes sense. If you can attend IWRC 2023 and help represent ORI please get in touch. We will be reaching out to IEEE chapters in Arkansas as well.

Read about the CHIPS and Science Act here: https://en.wikipedia.org/wiki/CHIPS_and_Science_Act

Puzzle Solution

43 is the largest number of nuggets that cannot be ordered.

What is the largest number of McNuggets that you can’t buy with packs of 6, 9 and 20? After putting in their blood, sweat, and tears, the mathematicians found that the answer is 43. You cannot buy 43 nuggets with packs of 6, 9 and 20, but you can buy any amount larger than 43.

Please see Mike Beneshan’s excellent blog about this type of problem at https://mikebeneschan.medium.com/the-chicken-mcnugget-theorem-explained-2daca6fbbe1e

The other Non-McNugget numbers are 1,2,3,4,5,7,8,10,11,13,14,16,17,19,22,23,25,28,31,34, and 37.

Trivia: You can get 47 in two ways: 36+19+120 or 06+39+120.

We’ve used the McDonald’s version of the chicken nugget to present and frame this mathematical puzzle. Here’s a link about the history of this menu item: https://www.thrillist.com/news/nation/history-of-chicken-mcnuggets

Robert C. Baker invented the chicken nugget, among many other things. He was a true innovator of what can be fairly called “modern foods”. A brief wikipedia article about him can be found here: https://en.wikipedia.org/wiki/Robert_C._Baker

A song written about this remarkable inventor can be enjoyed at this link: https://youtu.be/OEa8wqv4QM0

Do you have an idea for an interdisciplinary puzzle for our next newsletter? We’d love to hear about it. Write ori@openresearch.institute

Until Next Time

Thank you so much for being part of our Inner Circle! You are the motivation for all of this work, provided to the general public for free. We believe it makes the world a better place.

How Can Open Research Institute Help *You*?

Thank you so much for visiting with us at QSO Today Ham Expo! We hope you found it as enjoyable, vibrant, and inspiring as we did.

We presented five talks, had three project exhibits, and a booth. You can find a summary below.

Your interest in our work is appreciated. We want you to enjoy open source non-profit digital radio and amateur radio to the fullest. How can we help?

Here is how to get involved with what we do:

https://www.openresearch.institute/getting-started/

Here’s a roundup of what we brought to Ham Expo. All of what we do is published as it is created. Our work is free to the general public at no cost.

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Ribbit, a new digital text messaging mode for UHF/VHF emergency communications

Presentors: Pierre Deliou W4CKX, Ahmet Inan

Level: General Audience Category: Emergency Communications Time:

PDT: September 18, 2022, 10:00 am UTC: September 18, 2022, 5:00 pm

Ribbit is a novel digital text messaging mode for VHF/UHF communications for recreational and emergency use which radically increases the density of information transmitted by spectrum used. It leverages the computing power of the modern smartphone to increase the capabilities of any Handy Talkie without requiring any additional hardware. Its redundant distributed nature allows it to function even when connectivity to the internet is lost during emergencies. Ribbit is open source and currently in its early stages of development. Get the free Android app here: https://play.google.com/store/apps/details?id=com.aicodix.rattlegram

Artificial Intelligence and Machine Learning and the Future of Amateur Radio

Level: Intermediate Category: DSP and Software Design, Future of Amateur Radio, SDR Software Defined Radio, Software and Services Time:

PDT: September 17, 2022, 1:00 pm UTC: September 17, 2022, 8:00 pm

Artificial Intelligence and Machine Learning are all over the news, taking over academia, getting billions of dollars of commercial investment, and will change both computer networking and wireless communications in fundamental ways. What does the future of amateur radio look like when radios use machine learning to operate? How does our relationship to the bands change with cognitive radio? Where are we in this transformation? What will happen next?A working group to produce an AI/ML Handbook for Amateur Radio is forming now. Register your interest here: https://forms.gle/4dZsLkmyxCkp8JiF6

Truly Excellent Digital Voice Quality: Opulent Voice

Presentors: Paul Williamson KB5MU

Level: General Audience Category: Digital Voice Mode, DSP and Software Design, Software and Satellites, Space and Satellites Time:

PDT: September 17, 2022, 9:00 am UTC: September 17, 2022, 4:00 pm

Digital voice on amateur radio to date has generally had terrible voice quality, due to both a perception of limited available bandwidth and the convenience (to manufacturers) of repurposing commercial protocols with their older, proprietary, low-bitrate voice codecs. We present and demonstrate a modern digital voice design that can be used on 222 MHz and above with truly excellent voice quality. Source code here: https://github.com/phase4ground/opv-cxx-demod

Haifuraiya – Open Source HEO Satellite Project Proposal

Presentors: Michelle Thompson W5NYV

Level: General Audience Category: Space and Satellites Time:

PDT: September 18, 2022, 9:00 am UTC: September 18, 2022, 4:00 pm

Haifuraiya is an open source highly elliptical orbit amateur satellite project proposal. This presentation will walk through the high-level project proposal. The project features a digital microwave multiplexing transceiver with a failover transponder mode, has an international volunteer team open to community participants, and complies with debris mitigation guidance from the United States Federal Communications Commission. Repository here: https://github.com/phase4ground/documents/blob/master/Papers_Articles_Presentations/Slide_Presentations/haifuraiya/README.md

User Authentication for Amateur Satellites

Presentors: Paul Williamson KB5MU

Level: General Audience Category: DSP and Software Design, Software and Satellites, Space and Satellites Time:

PDT: September 17, 2022, 8:00 am UTC: September 17, 2022, 3:00 pm

After a brief discussion of the reasons why user authentication is needed on an amateur satellite service system, we’ll cover a proposed system to implement reasonably secure user authentication on a P4XT digital multiplexing satellite transponder, within the bounds of the (United States) rules.

We had three project showcases in the Project Gallery

Each Gallery had a Q&A tab, a poster or document, links to any papers, and a link to any associated video presentations.

1) Ribbit, a distributed digital messaging platform

2) Opulent Voice – High Bitrate Digital Voice and Data

3) Open Source Satellite Work is Free of ITAR/EAR

Kumospace Lounge

Thank you to Ham Expo for providing fun and effective Lounges for interaction at the conference. We truly enjoyed visiting with everyone that dropped by! We hope you enjoyed our themed events and the extended Q&A in the Lounges.

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