CC_333
Well-known member
Definitely. Properties that can affect radio waves include reactance, inductance, capacitance, dielectric properties, resonance, etc. Things such as trees, hills, people, cars and other objects, buildings with metal framing, etc, will often reflect high frequency signals around (lower frequencies will tend to pass through or be absorbed by objects to varying extents depending on frequency). For example, a metal building (especially a tall office or apartment building with metal framing), will block most cellular and wifi signals, keeping what's outside out and what's inside in, for the most part.
And that's only the beginning! It's not relevant to said high frequency signals, but the ionosphere can reflect certain frequencies around (particularly those below the FM broadcast band (~88-108 MHz), creating what are known as skywaves that can travel, under good conditions, for many thousands of miles! This is part of what allows long distance shortwave radio to be possible, because the signal can be "bounced" off the ionosphere and reflected to a point beyond the visible horizon, rather than spreading out into space.
And now you know more than you ever wanted to know about radio!
c
