Tuesday, May 23, 2017

Compact Multi-band Field Day Antenna. Post #1140.


Compact Multi-band Field Day Antenna
(http://www.nc4fb.org/wordpress/compact-multi-band-field-day-antenna-80-10-meters/)

Accessed on 23 May 2017, 20:45 hrs, UTC.

Author:  NC4FB.

Please click link to read the full article.

Comment:

How about a new and different HF antenna for the 2017 ARRL Field Day on 24-25 June 2017?

In this post, NC4FB offers a variation on the popular G7FEK nested 1/4 wavelength compact Marconi antenna that fits into a space of 46-feet/14.02 meters long and 24-feet/7.31 meters high.  This antenna offers a low angle of radiation, covers 80 through 10 meters, and is coax-fed.  An antenna "tuner" is required to optimize antenna performance.

Construction guidelines are here:

http://www.g7fek.co.uk/software/G7FEKantennas.pdf.

NC4FB offers his opinion on this cleverly designed multi-band HF antenna:

My friend KI4PMI and I always like to try something different each ARRL National Field Day.  This year we selected the G7FEK as one of the antennas to be used during Field Day.  The antenna turned out to be easy to build and after some experimentation we were able to adjust the 40 meter and 20 meter radiating elements for very low SWR operation using an AIM-4170C analyzer. The 80 meter band SWR curve was excellent without any adjustment.  The other bands (17, 15, 12, 10, 6) indicated useable SWR curves but will require a good antenna tuner.  We used a Palstar AT-500 manual antenna tuner to successfully tune these bands for maximum power transfer from the transceiver.


For more Amateur Radio news and information, please visit these websites:


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

Other sites of interest:

http://hawaiisciencedigest.com (science and technology news for radio amateurs).
https://hawaiiintelligencedigest.com (trends in geopolitical intelligence and cybersecurity).

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM)