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2. Antenna rotator - Wikipedia

   en.wikipedia.org/wiki/Antenna_rotator

   An antenna rotator (or antenna rotor) is a device used to change the orientation, within the horizontal plane, of a directional antenna. Most antenna rotators have two parts, the rotator unit and the controller. The controller is normally placed near the equipment which the antenna is connected to, while the rotator is mounted on the antenna ...

3. Radio masts and towers - Wikipedia

   en.wikipedia.org/wiki/Radio_masts_and_towers

   A mast radiator or mast antenna is a radio tower or mast in which the whole structure is an antenna. Mast antennas are the transmitting antennas typical for long or medium wave broadcasting. Structurally, the only difference is that some mast radiators require the mast base to be insulated from the ground.

4. Michael D. Ercolino - Wikipedia

   en.wikipedia.org/wiki/Michael_D._Ercolino

   He founded Telrex Communications Engineering Laboratories, Inc. (located in Neptune Township, Monmouth County, New Jersey), which manufactured a line of communication antennas, heavy duty rotators, and heavy duty rotatable mono poles which were capable of holding a number of high frequency communication antennas used on the dew line in northern ...

5. Mast radiator - Wikipedia

   en.wikipedia.org/wiki/Mast_radiator

   By 1930 the disadvantages of the T antenna led broadcasters to adopt the mast radiator antenna. [9] One of the first types used was the diamond cantilever or Blaw-Knox tower. This had a diamond (rhombohedral) shape which made it rigid, so only one set of guy lines was needed, at its wide waist. The pointed lower end of the antenna ended in a ...

6. Folded unipole antenna - Wikipedia

   en.wikipedia.org/wiki/Folded_unipole_antenna

   The folded unipole antenna is a type of monopole mast radiator antenna used as a transmitting antenna mainly in the medium wave band for AM radio broadcasting stations. It consists of a vertical metal rod or mast mounted over and connected at its base to a grounding system consisting of buried wires.

7. Monopole antenna - Wikipedia

   en.wikipedia.org/wiki/Monopole_antenna

   A typical mast radiator monopole antenna of an AM radio station in Chapel Hill, North Carolina. The mast itself is connected to the transmitter and radiates the radio waves. It is mounted on a ceramic insulator to isolate it from the ground. The other terminal of the transmitter is connected to a ground system consisting of cables buried under ...