The space age began in 1957 launching the first artificial satellite Sputnik I in the former USSR, which was carrying a radio beacon which emits a signal at frequencies 20 and 40 Mhz. this signal could be received by simple receivers throughout the world the first test performing transmission and reception of signals from space.
Ang espasyo edad nagsimula sa 1957 ilunsad ang unang artipisyal na satellite isputnik ko sa dating USSR, na nagdadala ng radyo beacon na emits ng signal sa frequency 20 at 40 MHz. signal na ito ay maaaring natanggap sa pamamagitan ng simpleng receiver sa buong mundo ang unang pagsubok pagganap ng paghahatid at reception ng mga senyas mula sa kalawakan.