I can&#x27;t emphasize this enough if you&#x27;re in the States. This is something that the FCC takes <i>very</i> seriously. There are hundreds of billions of dollars corporations have thrown at just to get rights to little chunks of spectrum (and as one would imagine, I&#x27;m sure their lobbyists have Tom Wheeler on speed-dial). This information has been out there for ages but this is the first time I&#x27;ve seen a single source with all of the information in aggregate. (I&#x27;ve toyed with putting up a similar page myself, but opted not to just to avoid the unwanted federal attention). If you do this on the nominal 850 for any significant amount of time, you&#x27;re going to be at best convicted of a federal crime with a long duration of probation after spending an egregious amount of money on defense counsel fees. You could realistically serve jail-time (it wouldn&#x27;t be hard to convince a jury to convict someone by claiming your transmission compromised emergency-comms, and if little Tiffany from Connecticut was abducted, how could her Amber alert propagate through the networks?!)<p>There&#x27;s a lot of amazing stuff which is incredibly accessible for such a low amount of money (spectrum analyzers with amazing VBW for 1&#x2F;20th the price you&#x27;d pay 10 years ago, hell, the whole SDR scene), but there&#x27;s really no Tor you can hide behind. Our civil servants might not be the brightest of the bunch, but they can triangulate a transceiver I&#x27;d imagine. If you choose to do this, broadcast in the ISM band around 912, and you should be safe..ish if you keep your broadcast under a watt. I love playing with gear but there are safer ways to get your jollies. As someone who did his share of foolhardy things in my youth, I could see myself as a precocious teenager doing something dumb like this - if you&#x27;re that 15 year old reading this - don&#x27;t. There are tons of fun things to do out there with a way, way lower risk factor.  (If you really want to play with things you shouldn&#x27;t, the modern power grid is filled with a mesh network, broadcasting your power consumption to the peers in your network. It&#x27;s on RF, and as such they have to legally disclose the nature of the broadcasts to the government, and those databases are public. Have fun ;))