It’s no secret that terrestrial radio in general ... Chief among these are the large tracts of land devoted to antenna farms, which are often located in suburban and exurban areas near major ...

These days, rotators are more often found on communication antennas like ham radio beams. For terrestrial use, the antenna only needs to swing around and doesn’t need to change elevation.

Delivering digital terrestrial broadcasting signals nationwide ... As a countermeasure for such co-channel interference, an adaptive array antenna was used in the construction of an interference ...