Mastodawn

f4ivy 2d ago

Imogen 2d ago

#Electronics

A 555 timer made with vacuum tubes.

(I did not create this. Simply sharing it.)

f4ivy Mar 8

Natasha

🇪🇺Mar 7

One of the last methane-powered cows.
Most cows are all electric now.

f4ivy Mar 1

loic_fejoz Mar 1

🛰Participez au rendez-vous « Rencontre Spatiale #Radioamateur ». Entre innovations technologiques et esprit collaboratif, découvrez un programme riche de plus de 21 présentations. Nouveauté 2026 : Un temps fort dédié aux démonstrations techniques (projets personnels et conférenciers) pour mettre l’innovation à l’honneur.📡
https://site.amsat-f.org/2026/03/01/7-8-mars-2026-rencontre-spatiale-radioamateur-2026-nouvelle-version-du-programme-disponible-moins-de-5-jours-pour-vous-inscrire/

#amsat #amsatF #hamradio #satellite

7-8 mars 2026 – Rencontre Spatiale Radioamateur 2026 :Nouvelle version du programme disponible – Moins de 5 jours pour vous inscrire !

Participez au rendez-vous » « Rencontre Spatiale Radioamateur ». Entre innovations technologiques et esprit collaboratif, découvrez un programme riche de plus de 21 présentations. Nouveauté 2026 : …

AMSAT Francophone

f4ivy Feb 23

Show thread

Adrian Feb 22

@va3db L.B. Cebik's pages were a goldmine of information, but here the README states that HTML contents were modified, I'm not sure if this respects the wishes of W4RNL. Here is another mirror of the pages which seems more faithful to the original:
http://www.antentop.org/w4rnl.001/radio.html

W4RNL

f4ivy Feb 21

Hacker News Feb 21

Show HN: PIrateRF – Turn a $20 Raspberry Pi Zero into a 12-mode RF transmitter
L: https://github.com/psyb0t/piraterf
C: https://news.ycombinator.com/item?id=47047559
posted on 2026.02.17 at 09:00:56 (c=3, p=8)

GitHub - psyb0t/piraterf: PIrateRF transforms your Raspberry Pi Zero W into a portable RF signal generator that spawns its own WiFi hotspot. Control everything from FM broadcasts to digital modes through your browser - hack the airwaves from anywhere! 📡⚡

PIrateRF transforms your Raspberry Pi Zero W into a portable RF signal generator that spawns its own WiFi hotspot. Control everything from FM broadcasts to digital modes through your browser - hack...

GitHub

f4ivy Feb 15

The Ranty Highwayman Feb 15

It's been raining for so long, even the roadworks sign guy has had enough.

f4ivy Feb 4

M0KHR Feb 4

Now TXing on 144.174 FT8. #2m #VHF

f4ivy Feb 2

David - F4LTV Feb 2

Date à retenir !

L' #ARA35 #F4KIO radioclub de #Rennes oraganise la conférence #ConfQRP le samedi 23 mai 2026. Toutes les infos en lien.

#REF #UFT #Radioamateurisme #QRP
https://ara35.fr/conf-qrp-2026/

f4ivy Jan 31

Vido Jan 31

I have no idea why my #software works! #meme

f4ivy Jan 30

Nick 🦇🕸️🖤🖖Jan 29

I was laid off in October after 13 years at Amazon and am still seeking a new opportunity. Please ping me if you know of a full-time remote role working on network and/or infrastructure security (on-prem and cloud-based). I also have experience with embedded/OT/IoT network security and wireless security. After hours I run a small network (AS46577) and fiddle with microcontrollers, embedded Linux, ham radio, and drones. Boosts appreciated. #infosecjobs #getfedihired #jobhunt #jobsearch