I have that same dongle, and I got it for ~$20 I think. It's on amazon, and comes with two antennas, some adapters, and the dongle itself. That website is also really helpful for setting up different things with it. I tried and got some AM Radio, the National Weather Service, police radios, and a few other things. It's a neat trinket: http://a.co/dFsVWBz