File:2008-07-28 Mast radiator.jpg

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Summary

Description
English: A mast radiator antenna for an AM radio station transmitter in Chapel Hill, North Carolina. The radio frequency current from the transmitter is applied directly to the steel lattice tower, which acts as a monopole antenna element. The tower is supported at its base by a massive porcelain insulator, which insulates it from the ground. The high voltage on the tower can deliver a dangerous shock to anyone that touches it, so it is surrounded by a fence to keep people out. The white shed is called a helix house and contains an antenna tuner matching network to match the impedance of the antenna to the transmitter to allow power to be transferred efficiently to the antenna. The mast is supported by guy wires (faint), which have strain insulators in them to prevent the high voltage on the tower from being conducted to ground.
Date
Source Own work
Author Ildar Sagdejev (Specious)
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(Reusing this file)
Photo by Ildar Sagdejev | Website | Gallery | Flickr | Portfolio
This photograph is published under the free licenses specified. If you drop me a line about how you're using it, I'd love that.

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Camera location35° 56′ 16.32″ N, 79° 01′ 36.78″ W  Heading=112.5° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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Captions

Antenna mast of AM radio station in North Carolina

Items portrayed in this file

depicts

28 July 2008

35°56'16.321"N, 79°1'36.775"W

heading: 112.5 degree

image/jpeg

38a081bebce226c58a27e374b0df5938e3567798

2,754,331 byte

3,830 pixel

2,553 pixel

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Date/TimeThumbnailDimensionsUserComment
current05:35, 8 October 2008Thumbnail for version as of 05:35, 8 October 20082,553 × 3,830 (2.63 MB)Specious{{Information |Description={{en|A mast radiator in Chapel Hill, North Carolina.}} |Source=Own work |Author=Ildar Sagdejev (Specious) |Date=2008-07-28 |Permission={{User:Specious/Ref}}

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