Eh, if they're so low power that they're not stepping on their neighbor's reception I'd personally say it's fine. Tree falling in the woods situation and all. T

Eh, if they're so low power that they're not stepping on their neighbor's reception I'd personally say it's fine. Tree falling in the woods situation and all. That definitely varies based on where one is playing around with such things, and it's always important to understand how far your transmissions are actually going (which can be surprising if you don't have much experience with it!). Someone in a shed on a few acres playing around with an SDR? Go ahead, I don't care. Playing around in an amateur anechoic chamber, have fun if you're sure you're containing things. On a desk in a random apartment in Manhattan? What an asshole, call the FCC. Is it potentially against the law to do this? Yeah, probably. How bad is it? Somewhere around jaywalking on an absolutely empty street and dumping waste in a park, greatly depending on multiple factors.