A register of transmission engineering

Why a radio signal goes where it goes: the ionosphere, the mast, and the rules that follow from both.

A publication about transmission engineering. Not a broadcast station — no schedules, no listings, no coverage claims.

Section 04

The Array

Feed several towers with controlled amplitude and phase and the radiated field adds in one direction and cancels in another. That is how a station protects a distant one it has never heard, and why a site can look like two transmitters on a plot.

A directional array of towers spaced across a field
Four towers in a line. Change the phase between them and the shape of the radiated field changes with it.Photo: Asheil Ramsurrun / Pexels