1. 7 Best Ham Radio Base Stations 2021 – Ham Radio Transceiver (7 найкращих базових р/а радіостанцій 2021) - https://www.amateur-radio-wiki.net/best-ham-radio-base-station/
2. 432 and Above EME Newsletters (жовтень 2021) - http://www.nitehawk.com/rasmit/em70cm.html
3. Ultimate Audio and CAT Control Xiegu G90/X5105 - https://oh8stn.org/blog/2020/12/04/ultimate-audio-and-cat-control-xiegu-g90-x5105/
4. CAT in CONTROL of PROGRAMMING (FTBasicMMO, FTBVR5K, FTBVX3, FTBVX8, FTB1D, FTB2D, FTB60, FTB100D, FTB177/277, FTB250, FTB270, FTB350, FTB1050, FTB1802/1807/1907, FTB1900/2900, FTB2070, FTB2800, FTB3100, FTB7800, FTB7900, FTB8800, FTB8900) - https://www.g4hfq.co.uk/
5. Attività qrp/p - https://www.youtube.com/watch?v=Wnxs7T3sxpE
** Ultra simple QRPP CW TRX one transistor transceiver 40m DL1DN - https://www.youtube.com/watch?v=18xuFR30h7Q
