50 tools · by ZS6SHZ
Tools
Calculators, antenna designs and quick references for the shack and the field. They work in your browser; anything you save stays on your device.
ITU Radio Regulations Explained
What the ITU Radio Regulations are, who changes them, the three Regions, primary vs secondary, and Article 25 for amateurs.
Tools from Ham Radio Tools by ZS6SHZ, free and open source under the MIT licence. See his project