I went to defcon once and learned there about rtl-sdr.com . When I copypasted the article that advertised low-end products, my suffering reduced. It was nice, it was a topic I like. I want to buy them! I looked for other recent articles, maybe mentioning some of ettus's full-spectrum products, didn't find that but I did find a current article from hackaday.com where somebody had run their own weather satellite, and used an SDR to pretend to be a fake sensor and give fake data. My suffering increased when I began to share this, and I ended up deciding not to.