We were learning about antennas and their radiation patterns and polarizations. Our teacher told us that directly on top of a monopole, there is no field. And that if the polarisation is not along the antenna, nothing is received either.
I then posed the situation of an RC plane, and everyone agreed it should not work, according to what we just learned.
In an RC plane there is a monopole in the transmitter and another monopole in the receiver, usually running from nose to tail.
In theory it appears that if I point the antenna directly at the plane there should be no reception at all. Yet this works just fine.
With the same logic, if the plane flies straight away from you, with its antenna pointing at you, there should be no reception. Yet this works just fine.
In theory, if I hold the antenna vertically and the plane flies horizontally, the polarization is perpendicular and there should be no reception. Yet this works just fine as well.