Monday, February 6, 2017

80m Limited Space Antenna. Post #1035.

80m Limited space Antenna
(http://www.dxzone.com/qsy32048-80m-limited-space-antenna).
Accessed on 07 February 2017, 00:50 hrs, UTC.
Author:  Mike Dennis (G7FEK).
Please click link or insert title URL into your browser search box to read the full article.  Mike supplies a link to download the pdf for this antenna.

Comment:

Here's another HF multiband antenna that will appeal to radio amateurs with small urban lots or whose homes are deed-restricted.  This antenna covers all amateur radio bands between 80 and 10 meters, with 20 meters and 10 meters requiring some additional wire and an antenna transmatch ("ATU" or "Tuner") to work properly.  Most bands can be used without a "tuner".

Mike Dennis (G7FEK) bases his antenna design on the classic "Zeppelin" and W3EDP antennas of the 1920's and 1930s.  The antenna consists of two elements, one being 38 feet/11.7 meters long and the other one cut for 8 feet/2.5 meters long.  A balanced feed line measuring 24 feet/7.4 meters long is shorted at the end and connected to a 50 ohm coaxial cable which goes to your rig. The balanced feed line is a radiating portion of this antenna.  The antenna uses two counterpoise wires, one measuring 65 feet/20 meters and the other cut to 33 feet/10.06 meters.  The antenna works well on 30m, 40m, 30m, 17m, 15m, and 12m.  Operation on 20m and 10m is possible with a few minor modifications.

In his downloaded pdf, Mike provides photographs, excellent drawings, construction details, and basic operating tips.  Mike says the antenna should be used as a horizontal antenna.  If you have limited space and want to work several HF amateur radio bands, then this antenna may be for you!

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

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.wordpress.com.
http://www.kh6jrm.info (breaking news for radio amateurs).

Other sites of interest:

https://hawaiisciencedigest.com (latest science and technology news for radio amateurs).

https://hawaiiintelligencedigest.com (latest trends in geopolitical intelligence, strategic forecasting, terrorism, and cybersecurity).

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today!

Aloha es 73 de Russ (KH6JRM).