Apr 14, 2013 · The RTL-SDR software defined radio can be told to run in a mode called 'direct sampling mode', which with a small hardware mod allows the dongle to tune to the HF frequencies where ham radio and many other interesting signals are found. This means that no upconverter circuit is required. However, the difficulty with direct sampling is that a hardware modification to the dongle is required ... Eh bien, à modifier le firmware pardi, c'est-à-dire de permettre de lancement de code non-signé depuis la Switch sans passer par le mode RCM/Recovery. Par exemple, sur PSP ça permettait de lancer des homebrews, mais aussi d'utiliser des plugins, de personnaliser le thème, d'utiliser un shell (alternative au menu principal de base), etc.