4 ms·
Yes, 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
by anotherhue 3y ago
Yes, 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).