Enabled by default, although apparently it has now been closed in an unannounced patch. Read more at https://arstechnica.com/gadgets/202...wisdr-product-gave-root-to-project-developer/
No they were not illegal activities, at least not currently in free counties. KiWi was made to allows others to use volunteers SDRs to listen do radio from the internet. Also to Direction Finding TDoA. I think you are thinking of "Hack RF" and that is not breaking the law either, it is a "Maker" Device. See this new video on a new worthy issue that is going on , to see how to do that.
I guess so. The first SDR that I bought was not to be sold in the U.S.A. Just because it was continuous coverage including Cell Phone frequencies. I am not sure how the newer SDR stuff gets around some of the Old FCC Rules.
