Not like commercial AM/FM radio stations playing music, but radio in the more general sense. 5G cell phones and satellite-to-earth communication systems use that frequency range, for example.
Comment on Why don’t wireless connections (WiFi, Bluetooth, etc.) use anything between 2.4Ghz and 5Ghz?
scheep@lemmy.world 6 days agoAh so the stuff in between that has things like radio stations?
kersploosh@sh.itjust.works 5 days ago
scheep@lemmy.world 5 days ago
makes sense, using WiFi with those frequencies would make it noisy and clogged up, esp. in crowded cities
Successful_Try543@feddit.org 5 days ago
Some parts of the spectrum in between 2.4 and 5 GHz are used by the mobile communication standards LTE and 5G (also higher frequencies). GSM, DVB-T, and FM radio operate at lower frequencies.
scheep@lemmy.world 5 days ago
ah that makes sense
bobs_monkey@lemm.ee 5 days ago
But, the key takeaway there is that those portions of the spectrum where mobile bands are are restricted to those uses. 2.4 and 5 are “free bands,” in which any device can use them (assuming compliance with FCC part 15 in the US). If I built a device and operated it at say 4.3GHz, I’d get in big trouble once found.
Successful_Try543@feddit.org 5 days ago
Indeed the regulator, e.g. the Bundesnetzagentur, will knock on your door and inspect your radio and wifi devices. That way, some years ago they’ve found a malefunctioning radio alarm clock in my area.
edgemaster72@lemmy.world 6 days ago
I’m not sure what exactly you mean by “in between” here (between 2.4 and 5 GHz?), but commercial radio in the US is at much lower frequencies than wifi bands. AM radio is typically measured in KHz (the range is something like 600-1400, I can’t be bothered to look it up), while FM radio is in MHz (around 87-108 MHz).