Andreas, DJ3EI, he/him

dj3ei@mastodon.radio

<a href="https://mastodon.radio/tags/FridaysForFuture" class="mention hashtag" rel="tag">#FridaysForFuture</a> I'm a German scientist for future. Very concerned about dangers to coming generations through CO2, nuclear waste, nuclear war, mass extinction. Sustainability dear to my heart since reading "limits to growth" in 1978, never owned a car in my life. <a href="https://mastodon.radio/tags/hamradio" class="mention hashtag" rel="tag">#hamradio</a> <a href="https://mastodon.radio/tags/AmateurRadio" class="mention hashtag" rel="tag">#AmateurRadio</a> QRP 5W inner city apartment amateur radio station. Enjoy <a href="https://mastodon.radio/tags/MorseCode" class="mention hashtag" rel="tag">#MorseCode</a>, rag chewing, mining

Posts

Post #4380549
Antenna optimization: Rediscovering the ZS6BKW antenna! The ZS6BKW multiband antenna was invented some 40 years ago by Brian Austin, G0GSF, then ZS6BKW through a lengthy, half-manual optimization process. With today's computers, such tasks have become easier. https://dj3ei.famsik.de/blog/antennas/ZS6BKW/ gives you one way how it can be done. (Shameless plug: With my antenna-simulation-driver Python package.) You're invited to use such to search for "optimal" antennas for you...
Post #4318708
Happy sysadmin celebration day for all who are celebrated! My big thanks to @M0YNG 🌹 and all the other admins 🌹 who keep Fediverse running! And even more: Happy sysadmin celebration day for all who should be celebrated, but are not!!! https://en.wikipedia.org/wiki/System_Administrator_Appreciation_Day
Post #4060249
Die Demokratie ist die menschenfreundliche Staatsform. Etwa 20% unserer Mitbürgerinnen und Mitbürger glauben das nicht mehr, sondern sitzen den Erzählungen auf, dass bei uns irgendwelche Eliten in den Hinterzimmern der Macht Dinge auskungeln, die nicht gut tun. Ein gutes Gegengift ist Transparenz. Sie kann die Erzählung widerlegen und ist auch nützlich, tatsächliche Kungelei abzustellen. @bmi@social.bund.de : Bitte tun Sie etwas für die Demokratie und stärken Sie das IFG!
Post #3434989
Friedrichshafen Faire in its wisdom has decided that it is not necessary to order busses to ferry people to the train station. The busses went Friday and Saturday, but the service will not be available on Sunday. The service was available on #HamRadioFriedrichshafen Sunday all these previous years, but not this year. 🤦 There are municipal busses going to Friedrichshafen Hafen: One bus every two hours. I imaging it will be cosy in those busses tomorrow. #AfuBarcamp says "thank you"...
Post #3117021
Ende Mai 2026. Ich sitze (immerhin! - das tun nicht alle hier) in einem überfüllten Regionalzug. Augenscheinlich haben die Länder Berlin und Brandenburg mal wieder nicht genug Transportkapazität bestellt. An verschiedenen Wänden hier ein QR Code, der zu einer Befragung einlädt: Als wie voll empfinde ich den Zug? Ich folge dem QR-Code (http-ohne-s? Wer macht denn sowas noch?) und finde die Information: &quot;Vielen Dank für Ihr Interesse! Diese Befragung ist seit dem 30.06.2025 beendet.&am...
Post #1911404
Official announcements of #DARC presently claim that fldigi is based on Hamlib. Not so. Each of fldigi and Hamlib contains their own independent code to do CAT. Fldigi does not need Hamlib for that. You can compile it without. But they are good neighbors to each other. If compiled in, fldigi can use Hamlib&#39;s CAT code instead of its own. And if fldigi&#39;s flrig exposes CAT via the network, any Hamlib-based program can use that. I like that commendable display of good neighborho...
Post #1856991
Gestern der große FUNK.TAG des #DARC! Ich habe aktiv (als Vortragender) teilgenommen - und fuhr enttäuscht wieder nach Hause. Er hätte eigentlich ein Festtag der Amateurfunk-Weiterbildung werden sollen. Wurde es schon auch irgendwie. Aber mich nervte Mehreres: Suboptimale Termine im Vortragsprogramm, suboptimale Räume, suboptimale Technik. Ich persönlich hab besonders Pech gehabt und besonders darunter gelitten. Details: https://dj3ei.famsik.de/blog/de/posts/2026/funktag_kassel/ Sollte der FU...
Post #1856990
Went to the London &quot;British Museum of Science&quot;. Again, as I have been impressed when visiting ~50 years ago. Today, it is more about people, less about science. They tell you the &quot;James Watt as a child with a tea kettle&quot; legend is probably not historic, but I saw no comparison chart of steam engine efficiency, say, of different ages or with different steam temps. Which of the computers on display were analog, which digital? Your guess. Still fun. But from...
Post #1378744
The monthly #JS8 party comes up again! From Saturday, April 11, 19 UTC for 24 hours until Sunday 19 UTC, more people will be active via JS8 than usually. This is no contest, just a time of enhanced activity. You can also start earlier or linger on later, if you want to. It is all quite relaxed. https://js8call.groups.io/g/main/viewevent?repeatid=12902 If you don&#39;t have the JS8Call program installed yet and want to change that: Version 2.5.2 is the latest as I&#39;m writing this, a...
Post #689996
RE: https://velocipederider.com/@ruari/116222415046722611 Europe does not mandate a cookie banner. But if a site is using cookies to sell your data, then yes. I&#39;m proud living in Europe. Decreasingly so as the EU commission currently tries to undermine data protection, but still: Proud. &quot;Also those sites with cookie banners are just doing malicious compliance.&quot;