> Is it possible to use a laptop's built-in wifi antenna / wifi card as the hardware side of a gnu radio setup? No. There's a LOT of stuff the wifi chip does

> Is it possible to use a laptop's built-in wifi antenna / wifi card as the hardware side of a gnu radio setup? No. There's a LOT of stuff the wifi chip does to convert EM to data, including despreading and other computationally expensive operations. Using an expensive SDR, you can follow this paper from 2013 to see the block diagram of what decoding wifi looks like: https://conferences.sigcomm.org/sigcomm/2013/papers/srif/p9.pdf https://conferences.sigcomm.org/sigcomm/2013/papers/srif/p9....