1. DK7IH: A “lean design” SSB-Transceiver for 14 MHz - https://dk7ih.de/a-lean-design-ssb-transceiver-for-14-mhz/
2. MicroVert Antennas - http://www.dk5ai.de/projects/microvert
3. 80/40m Vertical (+160M) - https://www.qsl.net/ei7ba/80&40mVertic.htm
** Antennae for the Low Bands..80 and 160m - https://www.qsl.net/ei7ba/low_band_antennae.htm
4. ITU International Morse Code Recommendation - https://www.itu.int/rec/R-REC-M.1677-1-200910-I/
5. UY1RA: Трансивер и SDR - https://gosh-radist.blogspot.com/2023/03/sdr.html?m=0
** Трансивер и SDR II - https://gosh-radist.blogspot.com/2023/03/sdr-ii.html?m=0
** Трансивер и SDR III - https://gosh-radist.blogspot.com/2023/03/sdr-iii.html?m=0
