Drones wouldn't be necessary for long range radio comms, as mentioned AM and FM broadcasts can get very nice range with the right antenna siting. Besides ionosphere skips there's also a technique called EME: Earth-Moon-Earth. People have been bouncing radio signals off the Moon since the 40s. Most bands above 6m have good propagation for EME comms. Transmissions require a fixed station with a few hundred watts but reception is fairly easy with even hand made antennas.
A laptop (even a mid-90s Twilight era laptop) can drive radios in digital modes for pretty effective communications. Hams running BBSes would be the Twilight War internet and likely the organizational backbone of civilian governments.
Also hi, first post on this forum.
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