File:Yagi TV antenna 1954.png

From Infogalactic: the planetary knowledge core
Jump to: navigation, search
Yagi_TV_antenna_1954.png(433 × 302 pixels, file size: 6 KB, MIME type: image/png)

Summary

A <a href="https://en.wikipedia.org/wiki/television_antenna" class="extiw" title="en:television antenna">television antenna</a> from a 1954 advertisement by the Radiart Corp., Cleveland, Ohio. It is a <a href="https://en.wikipedia.org/wiki/Yagi-Uda_antenna" class="extiw" title="en:Yagi-Uda antenna">Yagi-Uda antenna</a> for use on the 'low band' analog channels 2-4, 47 - 68 MHz. It has three director elements (crossbars on left) and one reflector (crossbar on right), and it's direction of greatest sensitivity (main lobe) is of the end of the antenna to the left. The <a href="https://en.wikipedia.org/wiki/driven_element" class="extiw" title="en:driven element">driven element</a> is a <a href="https://en.wikipedia.org/wiki/dipole_antenna" class="extiw" title="en:dipole antenna">folded dipole</a> to match the 300 ohm <a href="https://en.wikipedia.org/wiki/twin_lead" class="extiw" title="en:twin lead">twin lead</a> <a href="https://en.wikipedia.org/wiki/feedline" class="extiw" title="en:feedline">feedline</a> to the TV set. The antenna is made of aluminum tubing, the elements are roughly 6 feet across.

Changes to image: Cropped out advertising copy and adjacent intruding images, redrew minor areas in image that were smudged through poor copying.

Licensing

File history

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

Date/TimeThumbnailDimensionsUserComment
current06:13, 6 January 2017Thumbnail for version as of 06:13, 6 January 2017433 × 302 (6 KB)127.0.0.1 (talk)A <a href="https://en.wikipedia.org/wiki/television_antenna" class="extiw" title="en:television antenna">television antenna</a> from a 1954 advertisement by the Radiart Corp., Cleveland, Ohio. It is a <a href="https://en.wikipedia.org/wiki/Yagi-Uda_antenna" class="extiw" title="en:Yagi-Uda antenna">Yagi-Uda antenna</a> for use on the 'low band' analog channels 2-4, 47 - 68 MHz. It has three director elements <i>(crossbars on left)</i> and one reflector <i>(crossbar on right)</i>, and it's direction of greatest sensitivity (main lobe) is of the end of the antenna to the left. The <a href="https://en.wikipedia.org/wiki/driven_element" class="extiw" title="en:driven element">driven element</a> is a <a href="https://en.wikipedia.org/wiki/dipole_antenna" class="extiw" title="en:dipole antenna">folded dipole</a> to match the 300 ohm <a href="https://en.wikipedia.org/wiki/twin_lead" class="extiw" title="en:twin lead">twin lead</a> <a href="https://en.wikipedia.org/wiki/feedline" class="extiw" title="en:feedline">feedline</a> to the TV set. The antenna is made of aluminum tubing, the elements are roughly 6 feet across. <br><br> Changes to image: Cropped out advertising copy and adjacent intruding images, redrew minor areas in image that were smudged through poor copying.
  • You cannot overwrite this file.

The following 3 pages link to this file: