Posts for year 2025 🇩🇪 Auch verfügbar auf deutsch . 2025-07-07 How impossible is the isotropic radiator? 2025-06-17 Open a relay with 1750 Hz call-tone 2025-06-10 Report on CW Fieldday DL0ABT/P 2025-05-15 My time tracking system 2025-05-04 An antenna comparison 2025-05-04 IC-705 power measurement