If anyone sees this No Starch book (which is decent, btw, as one can expect from No Starch) and wants to dive in, start here: <a href="https://www.rtl-sdr.com/rtl-sdr-quick-start-guide/" rel="nofollow">https://www.rtl-sdr.com/rtl-sdr-quick-start-guide/</a><p>There's a lot of garbage equipment out there and it's easy to buy something that does not work or creates spurious emissions or other weird interference and incompatibilities. Unless you know how to mitigate these issues with a deeper understanding of electronics and RF, you're going to struggle to get good results.<p>That site is easily the most comprehensive starting point for beginners, but read through it carefully before purchasing a dongle.