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ENAMS online presentations
· News, Spectrum · Mats, SM6EAN

Recently news post on the IARU-R1 website and email have informed about the new generation of the noise measuring receiver ENAMS 2.0 (developed by DARC) within the IARU-R1 Noise Measuring Campaign (NMC). In order to spread information and to allow for questions about ENAMS 2.0, please find the linked schedule for the upcoming presentations in November and December 2024. The ENAMS team is glad to tell you about the necessity, advantages and technical details of the proposed ENAMS 2.0 rollout.

Feel free to select a date and time convenient to you. The target audience is the leadership of your amateuer radio society, plus any specialists involved in EMC matters.

Link Booking form

We are looking forward to meeting you at one of the upcoming webinars.

73
Wolf OE1MHZ
Chair, EMC Committee IARU Region 1

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ENAMS 2.0 available for pre-orders
· HF, SpectrumTagged · Sylvain, F4GKR

What is ENAMS ?

ENAMS stands for Electrical Noise Area Measurement System. It is a network of receivers that automatically measures and records the background noise level in the radio frequency spectrum from 66 kHz to 31 MHz. This data is used to track the increasing levels of radio frequency interference and its impact on radio communication, particularly shortwave broadcasting and amateur radio.

Why was ENAMS created?

ENAMS was initiated by the German Amateur Radio Club (DARC) in response to the growing concern over rising noise levels in the shortwave bands. The lack of reliable and up-to-date interference measurements highlighted the need for a system like ENAMS to document and analyze the problem.

How does ENAMS work?

ENAMS utilizes Red Pitaya SDR receivers equipped with preamplifiers to cover the entire frequency range from 66 kHz to 31 MHz. These receivers are strategically located and measure the RF spectrum every ten minutes, recording both RMS and peak noise levels. The data is then collected and processed to generate statistical information and visualizations of the noise levels across different locations.

What are the key features of ENAMS 2.0?

ENAMS 2.0 is an improved version of the original system with several enhanced features:

  • Local Data Storage:ENAMS 2.0 receivers can store up to 5 years of raw and calibrated data locally on a 256 GB disk. This allows for offline operation and easier relocation of the stations.
  • I/Q Data Retrieval:ENAMS 2.0 stores I/Q data from recent measurements, allowing for retrieval and further analysis.
  • Increased Computing Power:An additional Raspberry Pi provides more processing power for handling the increased data storage and processing requirements.
  • Enhanced Reliability:The system has been designed for continuous 24⁄7 operation with improved reliability.
  • Offline Operation:ENAMS 2.0 units can operate without a continuous internet connection. They only need to connect periodically to upload data.

Why is ENAMS 2.0 important for the amateur radio community?

ENAMS 2.0 provides crucial data that can be used to advocate for better protection of amateur radio frequencies. The statistically sound information gathered by the system demonstrates the inadequacy of previous ITU noise measurements in today’s environment, where cumulative noise from various sources is significantly impacting radio communication.

How can I contribute to the ENAMS project?

The IARU R1, in collaboration with DARC and the ENAMS team, is planning to make a second batch of ENAMS 2.0 units available by late 2024. Amateur radio operators and organizations can contribute by:

  • Purchasing an ENAMS 2.0 Unit:If you are interested in supporting the project and hosting an ENAMS 2.0 receiver, you can pre-order a unit from the DARC here https://​darcverlag​.de/ENAMS-20
  • Spreading Awareness:Raising awareness about the ENAMS project within your local amateur radio community and encouraging participation.

Where can I find more information about ENAMS?

More information, including technical details, data visualizations, and the latest updates on the ENAMS project, can be found on the ENAMS website: www​.enams​.de.

Preorder your unit here : https://​darcverlag​.de/ENAMS-20

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Radio Devroom @FOSDEM’25 (1st February)
· EventsTagged · Sylvain, F4GKR

Calling all Free and Open-Source Radio Enthusiasts!

Wondering what Amateur Radio and Software-Defined Radio are all about? We’ve got you covered with a clear introduction – check out the “Recommended Topics” section! We’re calling on developers and users of Free Software in these fields to contribute their projects and experiences to this exciting event.

Ready to share your knowledge? Read our Call for Presentations below and get involved!

See you in Brussels!

Bastien ON4BCY, Marc HB9SSB, and Sylvain F4GKR

Submit Your Presentations!

To suggest a talk, go to: https://​pretalx​.fosdem​.org/fosdem-2025​/cfp, “Submit a proposal” and fill in the fields, make sure it’s in the Radiotrack!

Content and Shape of Presentations

  • Length:Aim for a 45 minutes long slot which includes a 15minutes Q&A.
  • Scheduling:The final schedule will be available on Pretalx and the official FOSDEM website. Please note that all times will be in Brussels Local Time (CET).
  • Content:While slideshow presentations are welcome, we encourage you to showcase your demos and prototypes. This is a software community conference, so please avoid marketing-style presentations. We’re eager to delve into the technical details of your work.

Let’s make this devroom a showcase of innovation and knowledge sharing in the world of Free and Open-Source Radio!

Recommended Topics

The FOSDEM 2025 Radio Devroom will cover a wide range of topics, including but not limited to:

  • SDR frameworks and the tools that make them useful 
  • New SDR-based developments in ham radio modes
  • Cellular/telecom software
  • Amateur radio operator software tooling
  • Free / Open radio hardware
  • Wireless security research
  • Entertaining wireless hacks
  • SDR & ham radio in mass and higher education
  • Satellite, spacecraft and interplanetary communication
  • VLF systems, radioastronomy, propagation monitoring systems
  • Everything linked to radio waves

Software-Defined Radio (SDR) empowers radio signals to be processed and generated algorithmically, often using general-purpose processors but also FPGAs and GPUs. Free and Open Source (FOSS) Software Radio enables these algorithms to be inspected and improved. With the rise of IoT, satellite mega constellations, and 5G/6G, wireless technology is a rapidly expanding field of interest in the FOSS realm.

Ham Radio, also known as amateur radio, is more than just a hobby. It’s a passion that combines electronics, human interaction, and communication. At its core, ham radio is about building connections with people, technology, and the world. It’s a free and open community effort that fosters collaboration and innovation.

Travel Aid

If you’re unable to cover the costs of travel and accommodation to Brussels, we encourage you to reach out to us as soon as possible. Please provide a detailed estimate of your financial needs in the “Submission Notes” section of your proposal.

We can offer financial assistance to up to two contributors.

Don’t let financial constraints prevent you from sharing your work at FOSDEM. We look forward to hearing from you!

Important Dates

  • Submission Deadline: 1st December 2024
  • Announcement of selected talks: 15th December 2024
  • Conference: 1st & 2nd February 2025

Contact Us

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International Day of Persons with Disabilities on 3 December 2024
· News, PDRA · Mats, SM6EAN

Join Us in Celebrating the Program for Disabled Radio Amateurs (PDRA) on International Day of Persons with Disabilities!

  • Hosting special operating activities or nets that focus on accessibility in amateur radio.
  • Sharing stories and achievements of disabled ham operators within your societies.
  • Raising awareness about the PDRA’s work and advocating for better access to radio equipment, training, and opportunities for disabled operators.

Let’s work together to ensure that amateur radio continues to be a hobby and a service that welcomes all, regardless of physical challenges. Spread the word, participate in the celebrations, and make the 3rd of December a day to remember for all radio amateurs!

Riri, OD5RI
IARU R1 PDRA Coordinator

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