WebSDR and the world below 30 MHz
The Telecommunications Department invites you to the webinar themed WebSDR and the world below 30 MHz
Summary lectures Pieter-Tjerk de Boer (TU Twente)
The first part of the lecture is about the WebSDR: a radio receiver that can be operated by hundreds of users simultaneously via their web browser. We will discuss how this was achieved through Software-Defined Radio: the basics of SDR, the RF hardware and relevant algorithms.
The best-known WebSDR is at the University of Twente and covers frequencies from 0 to 30 MHz. Therefore, the second part of the lecture is about what is still happening on those frequencies today. Besides `legacy' services, such as AM broadcasting, newer developments can also be found there, taking advantage of long-distance propagation.
Pieter-Tjerk de Boer (Speaker)
Bio
Pieter-Tjerk de Boer studied physics and electrical engineering at the University of Twente, received his PhD from the (then) Faculty of Computer Science in 2000, and currently works there as a senior lecturer.
His research interests range from computer networks and their mathematical modelling, to signal processing and physical aspects of radio engineering.
He is also active as a radio amateur (call sign PA3FWM).
Programme
19:15 h - 19:30 h Login to MS Teams
19:30 h - 19:35 h Welcome by KIVI Telecommunications
19:35 u. - 20:10 u. Presentation Pieter-Tjerk de Boer (UT) part 1
20:10 u. - 20:20 u. Q&A with questions from the chat (part 1)
20:20 u. - 20:45 u. Presentation by Pieter-Tjerk de Boer (UT) part 2
20:45 h - 21:00 h Q&A with questions from the chat (part 2)
21:00 hrs. Closing and end
Visualisation of radio signals with SDR
Links
Recording webinar WebSDR and the world below 30 MHz on 17-02-2026
Q&A webinar WebSDR on 17-02-2025
WebSDR University of Twente
Article about WebSDR in the NRC