1. THE 1 WATT GAME 2022 - PART 1 - https://www.facebook.com/groups/1576444765759000/posts/6489650587771702/
2. Raspberry Pi RTL-SDR Scanner - https://cdn-learn.adafruit.com/downloads/pdf/freq-show-raspberry-pi-rtl-sdr-scanner.pdf
3. Peaberry SDR - https://ae9rb.github.io/peaberry/
4. SWR-Display - http://www.dl2khp.de/swr-display.html
** DDS-Generator - http://www.dl2khp.de/dds-generator.html
5. Crystal radio DXing - https://www.qsl.net/ve7sl/crystal.html
** Crystal Radio DX Contest Group (загальнодоступна група·283 учасників) - https://www.facebook.com/groups/crystalradiodxcontestgroup
