A good video on the science on how antennas work. From radio antennas to TV, ham radio, dipoles and beam antennas. Its all about electromagnetic conversion and resonance.
A simple set of charts to show the various power and attenuation level for different types of coaxial cable at various frequencies and bands.
Fast Radio Bursts
A very interesting article about several radio bursts that have occurred in a repeatable fashion that are the same, ie not random.