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#unun

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F5NFB<p>The UNUN (Here a 9:1 of 20W) from K6ARK are super transportable but they are hot to assemble... You have to be careful and very patient. But the result is validated with NanoVNA: maximum SWR of 1.096 across the entire HF band... 👍😁😉 <a href="https://mastodon.radio/tags/QRP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>QRP</span></a> <a href="https://mastodon.radio/tags/UNUN" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>UNUN</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/radioamateur" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>radioamateur</span></a></p>
flpvsk<p>First antenna 📡</p><p>RF is such a bizarre discipline. Wrap some wire on a metal donut: oh look now you can talk* to a different continent on a 9V battery</p><p>*morse if conditions are right</p><p><a href="https://mastodon.social/tags/amateurradio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>amateurradio</span></a> <a href="https://mastodon.social/tags/hamradio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hamradio</span></a> <a href="https://mastodon.social/tags/antenna" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>antenna</span></a> <a href="https://mastodon.social/tags/unun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>unun</span></a> <a href="https://mastodon.social/tags/wirewinder" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>wirewinder</span></a> <a href="https://mastodon.social/tags/3dprinting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>3dprinting</span></a></p>
Jochen ✅<p>Letzte Woche am Dienstag bestellt und heute schon geliefert. Hätte nicht gedacht das es so schnell geht. <a href="https://mastodon.radio/tags/jlcpcb" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>jlcpcb</span></a> <a href="https://mastodon.radio/tags/honeypi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>honeypi</span></a> <a href="https://mastodon.radio/tags/dg1jan" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dg1jan</span></a> <a href="https://mastodon.radio/tags/unun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>unun</span></a></p>
Peter<p>Descriptions LDG RU-9:1 <a href="https://mastodon.radio/tags/Unun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Unun</span></a> all say "easy to <a href="https://mastodon.radio/tags/weatherproof" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>weatherproof</span></a>" but give no details.<br>Any suggestions about how to weather proof it.</p>
Jim<p>If I tapped a 49:1 unun at turn 6 (indicated by the red arrow below), could I use that tap when I want a 9:1 unun? A dual-purpose unun could be handy. <a href="https://mastodon.radio/tags/unun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>unun</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>
Radio Aktiv<p>Bastelei am Wochenende. Ein neuer Trafo <a href="https://mastodon.radio/tags/UNUN" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>UNUN</span></a> für die <a href="https://mastodon.radio/tags/efhw" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>efhw</span></a> soll her. <a href="https://mastodon.radio/tags/amateurfunk" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>amateurfunk</span></a> <a href="https://mastodon.radio/tags/hamradio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hamradio</span></a></p>
Joachim 🍀<p>Denke den Balun habe ich ganz ordentlich und sauber aufgebaut. <br>Jetzt braucht es noch Werkzeug damit die PL-Buchse eingebaut werden kann <br><a href="https://muenchen.social/tags/hamradio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hamradio</span></a> <a href="https://muenchen.social/tags/amateurfunk" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>amateurfunk</span></a> <a href="https://muenchen.social/tags/darc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>darc</span></a> <a href="https://muenchen.social/tags/unun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>unun</span></a> <a href="https://muenchen.social/tags/balun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>balun</span></a> <a href="https://muenchen.social/tags/antenna" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>antenna</span></a> <a href="https://muenchen.social/tags/kurzwelle" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>kurzwelle</span></a> <a href="https://muenchen.social/tags/shortwave" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>shortwave</span></a></p>
Giovanni ZL2GX<p><span class="h-card"><a href="https://radiosocial.de/users/DG1JAN" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>DG1JAN</span></a></span> A great piece of work. We have the G3TXQ chart for choke Baluns <a href="http://karinya.net/g3txq/chokes/" rel="nofollow noopener noreferrer" target="_blank">karinya.net/g3txq/chokes/</a> and now your work for 49:1 ununs. Many thanks.</p><p>It's great that you've included all the methodology as well.</p><p><a href="https://libranet.de/search?tag=hamradio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hamradio</span></a> <a href="https://libranet.de/search?tag=amateur" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>amateur</span></a> radio <a href="https://libranet.de/search?tag=unun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>unun</span></a> <a href="https://libranet.de/search?tag=efhw" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>efhw</span></a></p>
Jim "Ham on a Bike"<p>Going with a Speaker Wire <a href="https://mastodon.radio/tags/randomlengthwireantenna" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>randomlengthwireantenna</span></a> with 9:1 <a href="https://mastodon.radio/tags/unun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>unun</span></a>. Had so much fun with the <a href="https://mastodon.radio/tags/putikeeg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>putikeeg</span></a> mini <a href="https://mastodon.radio/tags/straightkey" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>straightkey</span></a> yesterday, putting in back in action for today's <br>CW <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/qrp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>qrp</span></a> <a href="https://mastodon.radio/tags/amateurradio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>amateurradio</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/pota" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pota</span></a> <a href="https://mastodon.radio/tags/parksontheair" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>parksontheair</span></a> activation</p>
KO4FZG<p>Does a 9:1 <a href="https://mastodon.radio/tags/Unun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Unun</span></a> exist with a SO239 on both input and output instead of just a normal wire attachment? I'm not attaching more coax, basically my random wire attaches using a pl259. It's a weird setup. I'd be willing to pay fairly for an unun like that. I could cut off the pl259 I guess, but I don't want to.</p><p><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> <a href="https://mastodon.radio/tags/ham" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ham</span></a> <a href="https://mastodon.radio/tags/radio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>radio</span></a> <a href="https://mastodon.radio/tags/hf" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hf</span></a></p>
zem<p>I build a small test bed to play around with <a href="https://conesphere.social/tags/UnUn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>UnUn</span></a> (<a href="https://conesphere.social/tags/Balun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Balun</span></a>) in this case a 1:9 UnUn. With a 440 ohm resistor you see plugged in, this one is a perfect dummy load on all HF bands as expected.</p>
zem<p><a href="https://conesphere.social/tags/unun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>unun</span></a> <a href="https://conesphere.social/tags/balun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>balun</span></a> 1:9 <a href="https://conesphere.social/tags/qrp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>qrp</span></a></p>
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