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1 agos 1981 anni - Primera generación (1G): Maduración de la idea

Descrizione:

En 1981 el fabricante Ericsson lanza el sistema NMT 450 (Nordic Mobile Telephony 450 MHz). Este sistema seguía utilizando canales de radio analógicos (frecuencias en torno a 450 MHz) con modulación en frecuencia (FM).

Aggiunto al nastro di tempo:

generaciones de telefonos celulares

ByRene Vite
29 feb 2020
0
0
252

Data:

1 agos 1981 anni
Adesso
~ 44 years ago

Immagini:

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