I have always been amazed by all the digital modes HAMs use, one – which is WSPR was of a particular interest to me. WSPR uses a very complex way of encoding the bare minimum information (call-sign, locator and power) to ident a station. With error correction and a particular transmission method this allows reception…

Beacon Composition The beacon consists mainly of six modules: Description and function of each specific module 1. The micro controller controls and drives the si5351 generator board which produces the desired frequencies and functions. (Arty’s territory) 2: The si5351 is a very versatile chip and is used in many projects where signal generation is required.…