All,
I got an FM transmitter from amazon for about $85 including tax and I'm using my iPod touch to play a Shoutcast based audio feed, I'm probably going to move to a raspberry pi soon. The broadcast radius is about 1000ft or 305m,
that covers my block to the edge of the elementary school that's on the other side of the street in front of the houses behind mine. I realize this has little practical value and possible issues with the FCC but it's something I've been wanting to try.

Here's the streaming URL I'm using: https://www.radio.dieselpunkindustries.com/dpiradio.pls
The FM transmitter I'm using: https://www.amazon.com/dp/B088KLF8DJ?psc=1&ref=ppx_yo2_dt_b_product_details

Alan, Thank you for the terrifying info.
I also have a question. On the same page that covers unlicensed operation that only covers the FM bands (88 to 108 MHz). What if I'm broadcasting at 87.7MHz which outside the stated FM range for unlicensed operation?

Thanks again Alan, I got this model from amazon.
https://www.amazon.com/Crane-FM2-Digital-Spectrum-Transmitter/dp/B005GUQ0FI/ref=dp_fod_1?pd_rd_i=B005GUQ0FI&psc=1

Audionoir is one of the channels that I use with a program that I wrote that uses ffplay.  Interesting to see that it has a pirated station component to it.

And I have to agree that most of everything is moving to the internet.  It's a matter of market share and where to put their efforts.  Not to say that they wouldn't, I just have to wonder what are the odds unless the person is really, really, really big or is really putting people off with the broadcast if it's just local and probably a certain demographic neighborhood at that due to how many are actually using terrestrial radio for that to affect?  Even sat radio has been around since what early 2000s?  Quite possibly a whole generation without AM/FM radio memories that are adults now.  I haven't used AM/FM radio in over a decade, perhaps two, if I listened to a radio station (for instance, for a new Imagination Theatre broadcast), I would use the browser based version (especially if it wasn't local to me).  Most of the time, I use my NAS and stream throughout the property, but it always goes thru the LAN, so someone would have to be pirated my internet for them to be accosted with what I'm streaming.

It just appears to me, that it would a low priority, not to say that it isn't illegal to run a pirated station, just what are the odds without certain things going against you? 

Evan

25 years ago I was working at an auto auction it was located outside of town at least 5 miles away from any other buildings. I made up my own playlist of songs I wanted to listen to at my work station. I worked in the body shop, this auction had a cafeteria, a detail shop, a mechanics shop and different offices and a large parking lot which held three or four hundred cars. I fed the headphone output of the CD player to a amplifier and then to speakers. Some of the guys in the shop liked the music I had playing and asked if I could you run a speaker over so we can hear it. I had a better idea I had built an FM transmitter from a kit it put out 1 to 2 Watts. I am a ham radio operator so I'm familiar with electronic circuits and antennas. So I took it to work and hooked it up and fed it with my CD player, this was so the other guys in the shop could could tune their radios and listen to my tunes without me having to run wires and set up speakers. I found out this it would cover most of the parking lot and the and most other departments. I knew this was illegal but figured I was safe I picked the frequency that would not interfere with any station. I adjusted the power and the antenna placement so it would fade out once you went out to the road and drove a little way. This was at a time that you couldn't buy an FM transmitter from Amazon or somebody else did put out any kind of power.I was worried about the FCC but I figured if they did discover it they would just tell me to stop they didn't and I used that for a couple of years.