I recently got an RTL-SDR v3 and have been playing with it. Reception was hit or miss until I turned on "Direct Sampling (Q Branch)." Almost the entire band is now lit up like a christmas tree. I've tried two antennas: A Tram 1480 Dual Band Ham antenna (for my vhf/uhf radio), and a ~50ft random wire slung horizontally across my yard, about 5 feet off the ground. I get the best overall reception with the wire by a wide margin, but I'm curious what's going on. I'm seeing AM broadcast stations all the way up around 144 mhz now. Dozens of them. There is a consistent "Fox News Radio" program in the bunch somewhere (syndicated?) but the other stations are all an assortment of semi-local and DX AM broadcast. I'm seeing basically the same thing across the 10-11 meter bands as well. Are there really broadcast stations in those parts of the band or could I be picking up some sort of harmonics because of my (obviously) inefficient antenna? I'm also seeing a religious program at 1.5ghz FM of all places, butI am assuming that it's somehow related to a religious broadcaster located about 1/4mile from my house. (10+ dish antennas out there) I may be (and probably am) wrong. I just want to understand what I'm seeing.