Posts

Simple Ham Radio Antennas--Magnetic Loop Antenna Demonstration. Post #752.

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If you're having trouble viewing this video, please insert this title link into your browser search box: https://youtu.be/gc3ITr2swgU.  Thanks to George Becht for this video demonstrating and reviewing a multiband HF magnetic Loop Antenna designed by N2SQ.  The video gives us a good look at the capacitor box, plus some actual contacts on 17, 20, and 15 meters.  The antenna also works on 30 meters.  The coax is RG-8 with a solid Teflon dielectric using only the shield of the coax.  The center conductor is not connected.  The capacitor is a 25-100pf air variable gear type bought for $2.00 at the 2014 Orlando HamCation.  This magnetic loop antenna would be useful in HOA/CC&R controlled homes and apartments, as well as for portable and emergency use.  For the latest Amateur Radio news and events, please check out the blog sidebars.  These news feeds are updated daily.  Thanks for joining us today!  Aloha es 73 de Russ (KH6JRM).

Simple Ham Radio Antennas--ICQPODCAST--Erecting Antennas Released. Post #751,

ICQPODCAST--Erecting Antennas Released (http://www.icqpodcast.com/download-the-show/2016/4/17/icqpodcast-episode-209-erecting-antennas). Accessed on 19 April 2016, 00:24 hrs, UTC. Reporters:  Martin (M1MRB/W9ICQ; Chris (M0TCH); and Colin (M6BOY). The "ICQPODCAST" is one of my favorite programs focusing on amateur radio. Martin, Chris, and Colin do an excellent job of presenting current amateur radio news, various technical topics, and presenting special features of interest to the amateur radio community. In this episode (#209), Martin, Chris, and Colin explore two interesting antenna topics:  Erecting Antennas and how a new radio antenna avoids unwanted signals. In the news section, the program explores the Shakespeare 400 Special Event Station, ARRL's "Youth Net" website, the DSTAR satellite in space, and the accomplishments of K1JT, who was named Amateur of the Year. For the latest Amateur Radio news and events, please check out the blog sidebars.

Simple Ham Radio Antennas--Backward Inverted L Antenna. Post #750

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If you're unable to view this video, please insert this title link into your browser search box: https://youtu.be/SOpdXHnzwIA.  Here's another interesting antenna idea from Stan Gibilisco (W1GV)--something he calls a "Backward Inverted L Antenna."  While this antenna is designed primarily for receiving purposes, it can be modified to transmit on all amateur radio bands between 160 to 10 meters.  As with all verticals, a good ground radial or counterpoise system is necessary. I've built a few of these antennas and they work very well on 160 meters and on the MW standard broadcast band.  You can also use this antenna for general short wave listening when your amateur radio activity is done for the day.  For the latest Amateur Radio news and events, please check out the blog sidebars.  These news feeds are updated daily.  Thanks for joining us today!  Aloha es 73 de Russ (KH6JRM).

Simple Ham Radio Antennas--An All Band Loop. Post #749.

An All Band Loop Antenna (http://www.eham.net/articles/36087). Accessed on 17 April 2016, 05:37 hrs, UTC. Author:  Howard Walker (KI4VEO). If you have a large lot and want to experiment with the properties of loop antennas, then this article from Howard Walker (KI4VEO) may be what you need. Since Howard was blessed with several tall trees on his 4-acre property, he decided to string up a full wave loop antenna covering the amateur radio bands between 160 meters and 10 meters.  Howard ended up with a 570-foot/173.78 meters wire loop antenna that brings in plenty of DX during his time on the air. In this article published on eham.net, Howard discusses the construction techniques and the equipment needed to erect this large loop antenna. I've used full wave loop antennas in the past, albeit not as large as Howard's project.  My current 40 meter delta loop is fed with 450 ohm ladder line into an antenna transmatch (i.e. "tuner").  This modest antenna does an excelle

Time Zone Converter (Extended Edition). Post #748.

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If you're having trouble viewing this video, please insert this title link into your browser search box: https://youtu.be/HDFzizs DCcU. Here's a handy tool you can use in your ham shack to better schedule your DX and net contacts.  I've used this simple guide to set some of the clocks used in my radio room.  A useful gadget.  For the latest Amateur Radio news and events, please check out the blog sidebars.  These news feeds are updated daily.  Thanks for joining us today! Aloha es 73 de Russ (KH6JRM).