About 4' into the film, we can hear Levitan on the radio, saying that "AFRS operates on an assigned carrier of 540 and 749 Megahertz". It is very unlikely that those frequencies have ever been used for commercial grade radio broadcasting. AM broadcasts typically used (and still use) frequencies ranging from 540 to 1600 KHz, and FM broadcasts in United States are located between 88 and 108 MHz. Using higher frequencies would require more relays (due to the "line of sight" propagation mode of those frequencies), which is probably not really feasible in hostile countries, and above all, it would require custom receivers.
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05/03/2025 alle ore 07:07
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