1. Miss Mosquita-3, Monoband CW Superhet Transceiver 40m FET-Version - http://www.qrpproject.de/Media/pdf/ManualFETMosquitaUK.pdf
2. Mini CW Morse Code Keys Automatic - https://www.aliexpress.com/item/1005003995329422.html
3. Satellite Frequency List - https://www.pe0sat.nl/satdb/
4. SatNOGS Satellites List - https://db.satnogs.org/
5. A History and Critique of Field Day Logos (Історія та критика логотипів Field Day) - https://www.amateurradio.com/a-history-and-critique-of-field-day-logos/
