Posts

Simple Ham Radio Antennas--22 Different Wire Antennas for the 160 Meter Band. Post #950.

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Top Band Hams--22 Different Wire Antennas for the 160 Meter Ban d (http://topbandhams.com/tech-page/6=22-different-wire-antennas-for-the-160-meter-band). Accessed on 13 November 2016, 03:15 hrs, UTC . Author:  http://topbandhams.com. Please click link or enter title URL into your browser search box to read the full article. Comment: While I was looking for some experimental designs for a new 160 meter antenna, I ran across this website from the "Top Band Hams."  This site is loaded with ideas and suggestions for those who want to join the activity on "the gentlemen's band (160 meters). The article contains 22 tested antenna designs for the 160 meter band, most of which can be designed and built using materials available at the nearest hardware store or building supply outlet.  Among the designs are: Random length wire antennas. Delta loop/Inverted Delta Loop antennas . Half Delta Loop. Off-center-fed-full wave- doublet antenna . Double Extended Zepp

Simple Ham Radio Antennas-160m Vertical Antenna. Post #949.

160m Vertical Antenna  (http://k6mn.com/pages/ant-v-160.html). Accessed on 11 November 2016, 20:40 hrs, UTC. Author:  K6MN. Please click link or enter the title URL into your browser search box. Comment: 160 meter antennas can be intimidating.  A full quarter wavelength vertical for "The Gentlemen's Band" can be a high as 135 feet/41.15 meters. Even a horizontal dipole or inverted vee can challenging. K6MN has solved this problem by designing, building, and using a vertical helix for 160 meters.  Iv'e use such an arrangement for my 80 meter vertical, and, with a good ground radial system, I can do quite nicely on 80 meters.  K6MN takes that idea and models it for 160 meters. This antenna is suitable for restricted land areas and housing governed by CC&Rs and HOAs.  His final product is "stealthy" and blends in well with the trees on his property. In this post, we find a complete photographic step-by-step tutorial, a list of materials, and pl

Simple Ham Radio Antennas--Link End Fed Halfwave Antenna and Tuner for Sota. Post #948.

Link End Fed Halfwave Antenna and Tuner forSOTA (https://vk1nam.com/2014/08/08/link-end-fed-half-wave-antenna-and-tuner-for-sota). Author:  Andrew (VK1AD). Accessed on 10 November 2016, 20:15 hrs, UTC. Comment: End-fed halfwave antennas are popular with portable ham radio operations, such as Field Days, public service events, and contests such as Summits On The Air (SOTA). In this post, Andrew (VK1AD) describes a simple end-fed halfwave (EFHW) antenna and the small antenna tuning unit (ATU) that makes this portable antenna cover the 40, 20, and 15 meter bands.  Andrew supplements his text with some excellent photographs and diagrams. If you need a portable or emergency antenna, this design from Andrew could be the project you're looking for.  Make two of these antennas--one for your QTH and the other for your vehicle. --------------------------------------- For the latest Amateur Radio news and information, please visit these sites: http://www.kh6jrm.info (breaking n

Simple Ham Radio Antennas--Basic Fundamentals Baluns. Post #947.

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If you're unable to view this video, please insert this title link into your browser search box: https://www.youtube/watch?v=DRFnoCAeJJI.  A wonderfully simple, clear-cut, and easily understood discussion of the theory and design behind many of the baluns used for Amateur Radio.  Don Vanevenhoven does a good job of explaining a complex subject in a friendly, direct manner.  This video would be useful in a basic Amateur Radio licensing class. ------------------------------- For the latest Amateur Radio news and information, please check out my news sites: http://www.kh6jrm.info (breaking news of interest to the Amateur Radio community). https://bigislandarrlnews.wordpress.com (ARRL news and information for Hawaii Island radio amateurs). Here are some more sites that may interest you: http://hawaiisciencedigest.com (the latest news from the worlds of science and technology). https://hawaiiintelligencedigest.com (the latest developments in geopolitical intelligence, milita

Simple Ham Radio Antennas--30m Vertical Dipole. Post #946.

30m Vertical Dipole (http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=30454). Author:  Terry Glagowski (W1TR). Accessed on 08 November 2016, 19:55 hrs, UTC. Please link or insert title URL into your browser search box to read the full article. Comment: Here's an interesting antenna project for radio amateurs hampered by lack of space or other restrictive housing arrangements.  A vertical dipole antenna may solve many problems, especially if you lack room to install a proper ground radial or "counterpoise" system. Terry Glagowski (W1TR) has designed a compact, portable, and easily assembled vertical dipole antenna for the 30 meter Amateur Radio band. The antenna is made from #10 stranded wire available from most hardware and building supply outlets. According to Terry, "the feedpoint uses a T-section of PVC pipe...the coax loops through the PVC pipe to provide strain relief." Each leg of the vertical dipole measures 23-feet/7.012 meters, with the top