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#dipole

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Nicolas Montgermont<p>Very cool to see a lot of people on Mastodon! Here is a little communication on a work:</p><p>New performance "An Eye from Above" premiere in tsonami Festival - Valparaiso - 18 jan 25.</p><p>For over 20 years, the three NOAA satellites have been crossing our sky at over 20,000 km/h, continuously scanning the Earth's clouds and radiant energies.</p><p>An Eye from above is a performance that attempts to receive a live signal from one of these satellites, using an adapted antenna and a radio tuned to 137 MHz. As the satellite rises above our horizon, its signal slowly emerges from the surrounding noise, giving rise to a characteristic pulsation. The antenna acts as a revealer, making perceptible the electrical energy that passes through our bodies and our environment amidst a crowd of other artificial signals.</p><p>Poetry of analog protocols: this pulsation can be decoded into an image. Slowly, line by line, a nephanalysis of the 2000 km that surround us appears. Clouds and infrared radiation from the ground are displayed, offering a shift from our point of view to that of a space object.</p><p><a href="https://tldr.nettime.org/tags/radioart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>radioart</span></a> <a href="https://tldr.nettime.org/tags/soundart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>soundart</span></a> <a href="https://tldr.nettime.org/tags/noaa" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>noaa</span></a> <a href="https://tldr.nettime.org/tags/vhf" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>vhf</span></a> <a href="https://tldr.nettime.org/tags/137mhz" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>137mhz</span></a> <a href="https://tldr.nettime.org/tags/dipole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dipole</span></a> <a href="https://tldr.nettime.org/tags/sstv" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sstv</span></a></p>
IT News<p>Wago Terminals Make This Ham Radio Dipole Light and Packable - For the amateur radio operator with that on-the-go lifestyle, nothing is more impo... - <a href="https://hackaday.com/2024/12/15/wago-terminals-make-this-ham-radio-dipole-light-and-packable/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2024/12/15/wago-t</span><span class="invisible">erminals-make-this-ham-radio-dipole-light-and-packable/</span></a> <a href="https://schleuss.online/tags/amateurradio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>amateurradio</span></a> <a href="https://schleuss.online/tags/radiohacks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>radiohacks</span></a> <a href="https://schleuss.online/tags/antenna" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>antenna</span></a> <a href="https://schleuss.online/tags/dipole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dipole</span></a> <a href="https://schleuss.online/tags/balun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>balun</span></a> <a href="https://schleuss.online/tags/pota" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pota</span></a> <a href="https://schleuss.online/tags/sota" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sota</span></a> <a href="https://schleuss.online/tags/wago" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>wago</span></a> <a href="https://schleuss.online/tags/ham" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ham</span></a> <a href="https://schleuss.online/tags/qrp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>qrp</span></a></p>
IT News<p>Schooling ChatGPT on Antenna Theory Misconceptions - We’re not very far into the AI revolution at this point, but we’re far enough to k... - <a href="https://hackaday.com/2024/11/17/schooling-chatgpt-on-antenna-theory-misconceptions/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2024/11/17/school</span><span class="invisible">ing-chatgpt-on-antenna-theory-misconceptions/</span></a> <a href="https://schleuss.online/tags/common" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>common</span></a>-modecurrent <a href="https://schleuss.online/tags/radiohacks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>radiohacks</span></a> <a href="https://schleuss.online/tags/feedline" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>feedline</span></a> <a href="https://schleuss.online/tags/amateur" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>amateur</span></a> <a href="https://schleuss.online/tags/antenna" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>antenna</span></a> <a href="https://schleuss.online/tags/chatgpt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>chatgpt</span></a> <a href="https://schleuss.online/tags/dipole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dipole</span></a> <a href="https://schleuss.online/tags/radio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>radio</span></a> <a href="https://schleuss.online/tags/coax" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>coax</span></a> <a href="https://schleuss.online/tags/ham" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ham</span></a></p>
IT News<p>Few Things Are Cheaper than This Antenna - As far as hobbies go, ham radio tends to be on the more expensive side. A dual-ban... - <a href="https://hackaday.com/2024/10/31/few-things-are-cheaper-than-this-antenna/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2024/10/31/few-th</span><span class="invisible">ings-are-cheaper-than-this-antenna/</span></a> <a href="https://schleuss.online/tags/inexpensive" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>inexpensive</span></a> <a href="https://schleuss.online/tags/radiohacks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>radiohacks</span></a> <a href="https://schleuss.online/tags/impedance" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>impedance</span></a> <a href="https://schleuss.online/tags/invertedv" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>invertedv</span></a> <a href="https://schleuss.online/tags/resonance" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>resonance</span></a> <a href="https://schleuss.online/tags/hamradio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hamradio</span></a> <a href="https://schleuss.online/tags/antenna" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>antenna</span></a> <a href="https://schleuss.online/tags/dipole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dipole</span></a> <a href="https://schleuss.online/tags/radio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>radio</span></a></p>
Jim "Ham on a Bike"<p>Beautiful day for a <a href="https://mastodon.radio/tags/morsecode" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>morsecode</span></a> <a href="https://mastodon.radio/tags/parksontheair" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>parksontheair</span></a> <a href="https://mastodon.radio/tags/pota" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pota</span></a> activation with fishing floats to mark <a href="https://mastodon.radio/tags/dipole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dipole</span></a> guy wires while charging small <a href="https://mastodon.radio/tags/biketour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biketour</span></a> <a href="https://mastodon.radio/tags/solarpanel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>solarpanel</span></a> <a href="https://mastodon.radio/tags/hamradio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hamradio</span></a> <a href="https://mastodon.radio/tags/amateurradio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>amateurradio</span></a></p>
Chris P.<p>I decided to stop googling "<a href="https://mastodon.radio/tags/Dipole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Dipole</span></a> calculator" every time I wanted to cut some wire, and built a command-line tool to do it for me.</p><p>Built in <a href="https://mastodon.radio/tags/FSharp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FSharp</span></a> and <a href="https://mastodon.radio/tags/DotNet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DotNet</span></a> 8, it handles pretty much anything you can throw at it, from HF up through SHF. 160M+ and anything higher than SHF isn't supported, but I don't expect many people are building dipoles for 160M or. . .what, 30GHz+?</p><p><a href="https://mastodon.radio/tags/hamr" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hamr</span></a> <a href="https://mastodon.radio/tags/HamRadio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HamRadio</span></a></p>
Chuck Darwin<p>New research explains 'Atlantification' of the Arctic Ocean </p><p>New research by an international team of scientists explains what's behind a stalled trend in Arctic Ocean sea ice loss since 2007. </p><p>The findings indicate that stronger declines in sea ice will occur when an atmospheric feature known as the <a href="https://c.im/tags/Arctic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Arctic</span></a> <a href="https://c.im/tags/dipole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dipole</span></a> reverses itself in its recurring cycle. </p><p>The many environmental responses to the Arctic dipole are described in a recent article. This analysis helps explain how North Atlantic water influences Arctic Ocean climate. Scientists call it <a href="https://c.im/tags/Atlantification" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Atlantification</span></a></p><p><a href="https://www.sciencedaily.com/releases/2023/09/230901143618.htm" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">sciencedaily.com/releases/2023</span><span class="invisible">/09/230901143618.htm</span></a></p>
Abraxas3d W5NYV<p>Progress on an <a href="https://mastodon.radio/tags/hf" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hf</span></a> antenna design. I'm doing a talk about it for <a href="https://mastodon.radio/tags/qsotoday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>qsotoday</span></a>. It's a shortened half-wave <a href="https://mastodon.radio/tags/dipole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dipole</span></a> from a 1958 <a href="https://mastodon.radio/tags/rsgb" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rsgb</span></a> paper.</p><p>We are trying to finish up this prototype before <a href="https://mastodon.radio/tags/hurricane" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hurricane</span></a> <a href="https://mastodon.radio/tags/Hilary" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Hilary</span></a> hits.</p>
Johan Boo-stra 👻 | PD1JMB<p>Anyone knows what <a href="https://mas.to/tags/balun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>balun</span></a> I need here? Folded <a href="https://mas.to/tags/dipole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dipole</span></a> from a <a href="https://mas.to/tags/70cm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>70cm</span></a> 11 el. yagi, the balun that was on it is about 11.5 cm but my calculations say it is 23cm 🤔 <a href="https://mas.to/tags/hamradio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hamradio</span></a> <a href="https://mas.to/tags/uhf" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>uhf</span></a></p>
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