Posts

Building the 80m horizontal loop @PE4BAS. Post #1222.

Image
If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=u4efv1tb3ME. If you have the space, time, and the help of a few close friends, this full-sized 80 meter loop antenna will be worth the effort to design, build, erect, and use. In this video, Bas Lev (PE4BAS show us the 4-hour project compressed into a few short minutes. With a bit of help from friends or your radio club, construction time can be reduced significantly.  While this antenna is perfect for NVIS (near vertical incident skywave) propagation, it will also perform well on several Amateur Radio HF bands if 450-ohm ladder line or 300-ohm television twin lead is used in conjunction with a balanced antenna "tuner." This loop antenna would be useful on ARRL Field Day events or other portable operations now that propagation is favoring the lower HF bands. For the latest Amateur Radio news and information, please visit these websites: http://

Portable Solar Powered GoKit for Ham Radio. Post #1221.

Image
If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=1_Q0ORT93M. Here's another informative and well-produced tutorial from Julian (OH8STN), the creator of Survival Tech Nord. Over the past few weeks, Julian has produced a series of videos on "Man Portable Off-grid Power for Amateur Radio". This video addresses the use of solar power for your emergency "GoKit".  Julian's explanations are clear, simple, and thoroughly understandable.  He also discusses antennas and other equipment needed for portable and emergency operations. For the latest Amateur Radio news and information, please visit these websites: http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https://bigislandarrlnews.com. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://paper.li/kh6jrm/1430289353 (Amateur Radio News & In

Sloping Dipole Feed Options. Post #1220.

Image
If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=I-s7pbFZyUY. If you want full dipole antenna performance but don't have enough space to erect a full-half wavelength horizontal dipole, then a simple sloping dipole antenna may be the answer.  In video, Stan Gibilisco (W1GV) presents a simple tutorial on how to design, build, and use a slopping dipole antenna.  All you need is one tall support and a place to tie off the bottom part of the sloper.  Stan also discusses what portion of the sloper should be attached to the center pin of your coax feed line.  A simple, inexpensive antenna that will keep you on the air in a restricted space environment. For the latest Amateur Radio news and information, please visit these websites: http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https://bigislandarrlnews.com. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast tha

Wilson's (W4BWH) new Carolina Windom 160 Amateur Radio Antenna. Post #1219.

Image
If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=Peq69M02Bvk. Sometimes, you have to let your imagination run wild, especially when it comes to antennas. In this video, Wilson Hines (W4BWH) finds himself with a lot of property to erect a huge antenna--in this case a 265-foot/80.79 meters "Carolina Windom Antenna." Wilson says he gets great signal reports on all Amateur Radio bands from 160 through 10 meters.  While most of us don't have the room for such a monstrous antenna, we can certainly maximize the space we do have by designing antennas that are efficient and well-built. For the latest Amateur Radio news and information, please visit these websites, http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https;//bigislandarrlnews.com. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast updated each Friday afternoon). https://paper.li/kh6jrm/143028

How To Build A Delta Loop Antenna. Post#1218.

Image
If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=1uUVMaRFMv4. Here's a simple antenna that you may want to try for your next Amateur Radio activity. In this video, Hiram Vazquez takes us step-by-step in the design, building, and use of a Delta Loop Antenna.  The Delta Loop receives well, exhibits low noise, shows some gain over a dipole antenna (about 3 dB), and can be built from locally available materials.  You can feed a delta loop antenna with 50-ohm coaxial cable for single band use or with 450 ohm ladder line for multiband use. For multiband coverage, design the antenna for the lowest frequency of use, use 450 ohm ladder line as a feeder, and run the feeder through a balanced antenna "tuner" or a 4:1 balun before connecting the antenna system to your HF transceiver. For the latest Amateur Radio news and information, please visit these sites: http://www.HawaiiARRL.info. https://oahu