How a tiny radio station came to play a continuous loop since the late-1990s
northjersey.com
northjersey.com
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Or is it such a low power transmitter that it doesn't need licensing?
As a kid I had a microphone from Radio Shack that would transmit on FM. It had a range of maybe 100ft or so. I would put it next to a record player speaker and operate a "radio station" in my house.
This is my guess. Seems like it's intended to sync up speakers before Sonos and the like, so probably in the same class as those little FM broadcasters we all used to use to get music from our phone to our car. It's profoundly uninteresting to me that someone has one of these and is looping 60 seconds of audio somewhere in the world... but what do I know?
It’s the same rule part that allowed for the low power microphone you mentioned. It only allows for 250 microvolts per meter (measured at 3 meters away on the FM band) which is a tiny coverage area.
Edit to add: Back in the 1990’s and early 00’s, these signals went much further than they would in 2024, because the FM band had lots of blank spots. With HDRadio sidebands and since-licensed low power repeaters, those blank spots are now filled up.
I will assign the headphone jack on the MS-01 to a VM that has playlists running 24/7 within Proxmox and see what happens :D
For me, it also allows me to simultaneously play music across my property without disturbing the neighborhood with a centralized [louder] single point setup (similar to the friend from article).
For someone to stumble across it, they'd have to already be tuned into it's broadcast frequency. I'll guess that the device's frequency gets set to an open slot on the local airwaves.
Can anyone explain why this was so expensive back then?
Also, FTC is cool with this?