Simple Ham Radio Antennas--The All-Band HF Doublet. Post #936.

The All-Band HF Doublet
(http://www.hamuniverse.com/hfdoublet.html).
Accessed on 29 October 2016, 22:50 hrs, UTC.
Author:  N4UJW.
Please click title link or title URL to read the full article.
Comment:

If you need a simple, effective multiband HF antenna for your shack, you should consider building the "All-Band HF Doublet" antenna.  All you need are two vertical supports, some ladder line, tv twinlead, or homemade balanced feed line, some 12-14 gauge house wire, a center insulator, insulators, rope, and an antenna "tuner" with balanced line connectors.  If your "tuner" doesn't have balanced line connectors, you can run the feed into a 4:1 current balun and use a short length of 50 ohm coaxial cable to connect the "tuner" to your HF transceiver.

N4UJW and the Ham University have done an excellent job of explaining the theory, design, construction, and use of this classic antenna. N4UJW gives you all of the basic formulas, wire lengths, feeder lengths, and auxiliary materials you need to build this simple multiband HF antenna.

For the latest Amateur Radio news and information, please visit my two news sites:

http://www.kh6jrm.info (breaking news of interest for the Amateur Radio community).
http://bigislandarrlnews.wordpress.com (ARRL news and events for Hawaii Island radio amateurs).

For those of you wanting the latest science and technology developments, please visit my science site at http://hawaiisciencedigest.com.

Thanks for joining us today!

Aloha es 73 de Russ (KH6JRM).

Comments

Post a Comment

Thank you for visiting my Amateur Radio Blog. I value your comments and suggestions. For Amateur Radio Antenna Topics and Discussions, stay here. For Amateur Radio News and Trends, please visit my news site at https://bigislandarrlnews.com.
Aloha es 73 de Russ (KH6JRM).

Popular posts from this blog

G5RV Multi Band HF Dipole Antenna. Post #1555.

Image
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 wee
Read more

Antenna for Condo Backyard-Stealth. Post #1542.

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=MXTYTytR56A. Don't let deed-restricted properties (HOA/CC&R) stop you from enjoying Amateur Radio.  In this video from AC2RJ, we see how some well-placed trees, a camera tripod, a telescoping fiberglass mast, and a "V" antenna can get you on the air without a lot of effort.  Add an antenna "tuner", a sturdy rig, such as the Yaesu FT-817, a microphone/cw key, and a simple grounding system, and you have a fully functional, nearly invisible ham station in your backyard. For the latest Amateur/Ham Radio news and information, please visit these web sites: 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 &
Read more

Amateur Radio Bicycle Mobile Setup. Post #1554.

Image
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).
Read more