Hi, this is a fork of the [Havoc](https://github.com/furrtek/portapack-havoc/), which was a fork of the [PortaPack](https://github.com/sharebrained/portapack-hackrf) firmware, which is an add-on for the [HackRF](http://greatscottgadgets.com/hackrf/). A fork means it is a derivated, so it is basically a clone that, for now, has extra features and fixes over the older versions.