The world pandemic came unexpectedly and made adjustments to the plans. Many events were canceled, even more rescheduled, and we were also forced to anxiously monitor the situation. Being in uncertainty and constant expectation is very difficult.

It was a difficult period for all of us, Covid-19 literally took away from us everything that would seem to be forever with us, familiar communication with colleagues at work, meeting friends in a cafe, walking in the park with family and much more from ours Everyday life. And finally, life is gradually returning to its usual course. And we are pleased to inform you that Radiofest 2020 will be held! Yes, of course, there have been many changes and many restrictions. But, as they say, nothing is impossible. We will make every effort to ensure that the event is comfortable and safe.

Let's start with the organizational part. So, from October 7 to October 9, 2020, everything is in the same wonderful place, Technopolis Moscow (Alabushevo site) will host the second All-Russian technological competition in the promising areas of radio communications development - “Radiofest-2020”. The organizers of the competition are the Foundation for Advanced Studies and the Ministry of Science and Higher Education of the Russian Federation. The order of the competition also remains unchanged, the first two days will be a hackathon, where teams will be provided with equipment for debugging software, the third day will be the grand opening, the competition in the directions and the award ceremony.

Now about the technical component of the competition. Directly, the directions of the competition remain unchanged, this is still radio navigation, radio interception and radio communications/electronic warfare. But, already having experience in conducting the first competitions, we made some changes to the new Rules, aimed primarily at expanding the audience of potential participants in the competitions. The LimeSDR SDR platform chosen by us for the first radio festival, an excellent radio frequency front end, but still quite expensive and a difficult thing to get, you won’t go to ampere or chip-dip, you won’t buy it. Accordingly, not everyone has the opportunity to purchase the necessary set of equipment and prepare for the competition. What puts the same amateur radio enthusiasts in unequal conditions with teams supported by an educational institution or, especially, a commercial organization. In this regard, in the “catch the wave” competition, we are switching to the use of the well-established RTL-SDR Blog V3 receiver as radio equipment. Simple, cheap, easily accessible, with a sufficient frequency range, there would still be a transmission channel, in general, there would be no price for this dongle. In the computing part of the equipment set, everything remains unchanged, we use the Raspberry Pi 4 4GB.

Another innovation is the Super Games, in case the teams achieve the same result when completing the competition task, a Super Game is held between the teams to identify the winner with the complication of the competition conditions.

In total, the following contest tasks will be held at Radiofest-2020.

Competition in the direction of radio interception “catch the wave” does not change its essence - the competition task is to automatically determine the type of signal modulation. But instead of LimeSDR, teams are provided with RTL SDR. If the teams show the same result, then the Sup-Game is held to determine the winner. During the Super Game for the emitted signal, the signal-to-noise ratio decreases and a pseudo-random tuning of the operating frequency is added.

The competition in the direction of radio communication/electronic warfare "flag capture" is completely inherited from last year's radio festival. Teams compete with each other, each team has two full-featured LimeSDR sets, the task is to organize a radio exchange between their sets of equipment in the context of electronic countermeasures of the opposing team. The team with the most information wins.

The competition in the direction of radio navigation, despite renaming from “fox hunting” to “geo-battle”, does not change the essence and consists in determining the coordinates of several sources of radio emission using LimeSDR kits. But now the number of receivers available to teams is fixed - two sets, plus sets of equipment can exchange data over a wired Ethernet network.If the teams show the same result, then the Sup-Game is held to determine the winner. During the Super Game, one of the sets of equipment is equipped with an additional transmitting antenna; teams can use the transmitting channel to interfere with the opponent’s team.

The event is dedicated to a separate website . In the very near future it will be published the Rules of the "Radio Festival-2020". Also, given the experience of previous competitions, a section with code examples will be available on the site. In particular, C and python code examples will be available for interaction with the Organizing Committee server, in terms of connecting and downloading/uploading files.

To participate in “Radiofest-2020”, you must fill out an application for participation, which will also be published soon on the website http://radiofest.rf

See you at Radiofest 2020 !.

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