5 ms·
Didn't Wi-Fi originally use 2,4 GHz because it was free to use (without needing a license), because of the noise produced by microwaves on this frequency?
by jraph 3y ago
Didn't Wi-Fi originally use 2,4 GHz because it was free to use (without needing a license), because of the noise produced by microwaves on this frequency?
- anotherhue 3y agoYes, 1946 was when the FCC opened up 2450 +/- 50 Mc (later MHz), for microwave and medical diathermy use. It was later, in the 80s that they allowed intentional emission. Either as CDMA or FHSS. Within a year we had Wi-Fi (CDMA) and Bluetooth (FHSS).