Jump to content

File:Antenna Tuning Unit, 250 KW AM station, 6 tower array.jpg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file(1,984 × 1,488 pixels, file size: 695 KB, MIME type: image/jpeg)

Summary

Description
English: The antenna tuner for a 6 tower, 250 kilowatt AM radio station. It is located in a shed called a "helix house" near the antenna towers. The transmitter that produces the radio frequency current to feed the antennas is located further away from the antennas, and the current is fed to the antenna tuner through coaxial cable. From the tuner the electricity is conducted to the antenna towers. The purpose of the antenna tuner is to match the impedance of the feedline to the impedance of the antennas so the power can be fed efficiently to the antennas, and second to feed the power to the antennas with the proper phase so the antenna has the proper radiation pattern to cover the audience areas.
Date
Source I took this picture while working at the radio station shown. Person shown is myself
Author JNRSTANLEY

Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
You may select the license of your choice.

Captions

Antenna tuning unit for an AM radio station

Items portrayed in this file

depicts

20 October 2014

0.03333333333333333333 second

6 millimetre

image/jpeg

ff7db60c1a9b7bfd9e1f41ee7013f870e5abbe6a

711,598 byte

1,488 pixel

1,984 pixel

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current11:17, 21 October 2014Thumbnail for version as of 11:17, 21 October 20141,984 × 1,488 (695 KB)JNRSTANLEYUploading a self-made file using File Upload Wizard
The following pages on the English Wikipedia use this file (pages on other projects are not listed):

Metadata