Skip to main content

Ham Radio - An end fed half wave antenna with built in counterpoise. (Ex...


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=MKUZsC9BZmY.

Experimenting with antennas is one of the great joys of ham radio.

In this video from Kevin Loughin (KB9RLW), we go back in time to one of the "classic" HF antennas from the 1920s and 1930's.  Kevin's end fed half wave with built-in counterpoise is based on an original 1909 design by German engineer Hans Beggerow, who later used the antenna on Zeppelin Air Ships.

Along with other comments, Steve Ellington fills us in on Beggerow's original concept:



Steve Ellington
Hans Beggerow's antenna didn't have a counterpoise. That ladder line section was 1/4 wavelength long
and acted as a transmission line transformer which
transformed the high impedance antenna to a low
impedance thus moving the high voltage point far
away from the hydrogen filled balloon. It was simply
a safety feature and met the need at the time.
---------------------------

Why not try this antenna for your station?  The antenna is easy to make and performs well on several amateur radio HF bands.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Comments

Popular posts from this blog

G5RV Multi Band HF Dipole Antenna. Post #1555.

If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=aeNHIQ_j4Dk

This well-produced and richly illustrated tutorial on the classic G5RV HF Dipole Antenna was presented to the Brandon Amateur Radio Society in Brandon, Florida in 2017 by Bernie Huth (W4BGH).  Bernie does an excellent job of  explaining the pros and cons of this popular HF antenna from the late Louis Varney (G5RV).  Although Varney envisioned his design primarily as a 3/2 wavelength antenna for the 20 meter Amateur Radio band, radio amateurs have used the antenna for multiband use.  The G5RV is an excellent choice for the 20 meter band.  Performance on other HF Amateur Radio bands is good enough to qualify as stand alone HF antenna if you can only erect one HF antenna.

For the latest Amateur/Ham Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podca…

Amateur Radio Bicycle Mobile Setup. Post #1554.

If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=2zWb-KnkGdY.

Here's a way to use Amatuer/Ham Radio while you work on shedding a few pounds in useful exercise.  Why not equip your bicycle for 2 meter/70 cm mobile operation?

In this short, well-made video, "taverned" shows us how he used a mag mount antenna, a simple C clamp, and a basic ground system to convert his mountain bike into a mobile station.  The project is straight forward, simple, and gives you emergency communications while you peddle down the road.

For the latest Amateur/Ham Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eha…

An 80-Meter Vertical Helix

Like many amateur radio operators, I live on a small lot surrounded by neighbors, utility lines, and civic-minded citizens concerned about the "attractiveness" of my community.  Whether by design or outright fear, I've adopted the "stealth" approach to ham radio antennas.  It's the old "out of sight, out of mind" idea applied to amateur radio antennas.

The amateur radio press is full of articles describing the struggle of amateur radio operators to pursue their hobby under the burdensome regulations of CC & Rs, HOAs, and other civic minded citizens who object to antenna farms.  So far, my modest verticals, loops, and inverted vees have blended well with the vegetation and trees bordering my small backyard.  Vertical antennas have always been a problem because of the limited space for a radial system.  There are times, however, where a shortened vertical for the lower HF bands (such as 80/75 meters) is necessary where horizontal space is lacki…