F8EXM - KZ4CQ

Radioamateur, passionné par les satellites, l'espace mais aussi cent-bornard et bébé triathlète.

[F8EXM - KZ4CQ @F8EXM]

Phew, I’m done with all the components 🥳. The next step is to install the connectors.
#QMX #hamradio

[F8EXM - KZ4CQ @F8EXM]

Let's populate this nice #QMX PCB with some inductances 🧵😉 #hamradio

[F4CVQ @f4cvq]

New release : v1.4
https://t.co/EsCzsvJHpt

[Pierre Journel @pjournel]

QMX QRP Labs, montage de 7 Kits
https://t.co/HvNhGklgl5 #radioamateur #qmx #qrplabs

[WiMo Antennen @wimo_de]

🆕New at WiMo🆕 Acom-560 Morse key (paddle) with LCD
https://t.co/od2vFP3RHo

The ACOM-560 CW paddle replaces mechanical contacts with high-precision force sensors that detect your finger pressure on rigid levers wear-free and virtually silently 🔇. You can adjust the actuation force from 10 to 60 grams per lever and save it in five profiles via the integrated display ⚙️. Thanks to the solid 1.05 kg stainless steel base, the paddle sits completely non-slip on your desk, while an internal LiPo battery with a USB-C charging port and the universal 3.5 mm jack connector ensure maximum flexibility at your transceiver 🔋.

Go directly to the new product here ➡️
https://t.co/od2vFP3RHo

#AmateurRadio #HamRadio #CW #Morse #MorseCode #ACOM #Acom560 #MorseKey #Paddle #RadioTechnology #WiMo

[F8EXM - KZ4CQ @F8EXM]

Honnêtement, la flamiche au munster 🧀 c'est une tuerie 😉

[F8EXM - KZ4CQ @F8EXM]

L401 and L502 found their place on the PCB 👍 Next time I'll wind and install all 6 LPF toroids 🫣 #QMX #hamradio

[F8EXM - KZ4CQ @F8EXM]

The T501 transformer aka "The Weird Twisted Sisters Transformer" is in place 👍 I also added a bit of solder to the BS178 transistors.
Now it's time to eat some fajitas 🌮 😉
#hamradio #QMX

[Terrible Maps @TerribleMaps]

A three-course meal

[WiMo Antennen @wimo_de]

🙅 The 10 most common mistakes in amateur radio – and how you avoid them 🫣
https://t.co/XbGvgr5OsJ

Do you know this: The band noise is at S7, the signal drowns in QRM, or the modulation unexpectedly breaks down during voice peaks 🔊? Often, it is not poor propagation conditions that thwart the hoped-for radio contact, but typical pitfalls when setting up and operating your own station ⚠️.

This is exactly where our new practical guide comes in: Together with Alfred Klüß (DF2BC), we analyze the 10 most common mistakes in amateur radio – and how you can avoid them 📘. From the deceptive combination of QRP devices and makeshift antennas to underestimated RF counterpoises and tricky sources of interference in your own household, we take a close look at typical weak points 🔍. https://t.co/XbGvgr5OsJ

#AmateurRadio #HamRadio #Xiegu #XieguG90 #Giveaway #HamRadio #RadioTechnology #RadioPractice

[Thales Group @thalesgroup]

Think you’d make a good sonar operator? Prove it.

Listen carefully.
How many underwater sounds can you identify ?

Tell us in the comments.

#Euronaval2026

[F8EXM - KZ4CQ @F8EXM]

Raclette avec les collègues et les clients pour fêter la fin de la semaine 🧀🥓 Avec une coupe Colonel 🪖 pour @f1ulq

[OndeRadio @onde_radio]

What gives you a perfect SWR but ensures you're never heard? 🎙️
▶️ https://t.co/8IpPUji6EN

[DX World.net @DX_World]

New book: "VOACAP: Unlocking the Ionosphere"

Turn HF guesswork into strategy. That's the idea behind my new book, "VOACAP: Unlocking the Ionosphere," coming soon from ARRL.

It's a practical guide to VOACAP Online, the HF propagation prediction service I co-created more than 20 years ago and still maintain. You'll learn how to set up a prediction for your own station, read the results with confidence, and turn them into an operating plan: which band, which hour, and how reliably. Along the way, it covers the gray line and the low bands, coverage maps, and a complete start-to-finish walkthrough. You'll also see where the model is strong, where it has limits, and how to cross-check it.

Written for newly licensed hams, seasoned DXers, contesters, DXpedition planners, and shortwave listeners, the book assumes no background in propagation theory. If you've ever clicked around VOACAP Online and wondered what all those colorful wheels and charts are telling you, this one is for you.

The table of contents, ordering links, and updates are on the book page. The first update covers the new DX Map, an interactive gray line simulator for your own path.

https://t.co/oBs3zIYLGn

[F8EXM - KZ4CQ @F8EXM]

@ZsofiaBodo It was a very good initiative 🫡💪

[OndeRadio @onde_radio]

Jusqu'où des passionnés de radio sont-ils prêts à aller ? À Bouvet : une île inhabitée sous la glace, 1 500 milles de bateau, 89 000 contacts, indicatif 3Y0K. 🌍
▶ https://t.co/LSieNp1OcS

[Bodó Zsófia @ZsofiaBodo]

I will be speaking at the Karlsruhe Space Connect. #spacebrewery #equalorbit #karlsruhe

[WiMo Antennen @wimo_de]

🛰️Building your own QO-100 ground station: Presentation by Prof. Dr. Harald Gerlach now on YouTube 🛰️
https://t.co/jOXM2W8g2d

The geostationary amateur radio satellite QO-100 thrills radio amateurs worldwide with stable connections around the clock 🌍. But what is the best way for you to get started with demanding microwave technology on 2.4 GHz and 10 GHz 🤔?

In our latest video, we present to you the complete presentation recording from our HAMtastic Experience 2026 🎥. Prof. Dr. Harald Gerlach, DL2SAX, provides in-depth and practical insights into what matters when setting up and operating your own QO-100 station – from selecting suitable parabolic dishes and feeds, to up-converters and LNBs, all the way to control via SDR software 📡.

A quick note on language: The presentation was held in German 🇩🇪. If you or fellow radio amateurs need a translation, please simply use the automatic subtitle and translation feature directly in the YouTube player 🌐.

Click here to go directly to the video 👇:https://t.co/jOXM2W8g2d

#AmateurRadio #QO100 #SatelliteRadio #HAMtasticExperience #DL2SAX #HamRadio #GroundStation #Microwave #SDR #WiMo

[F8EXM - KZ4CQ @F8EXM]

@kg4mxv Thanks for your advice 👍 I'll add some solder on this side and I think I have some thermal paste at home 💉

[F8EXM - KZ4CQ @F8EXM]

The PCB is starting to get crowded with some diodes, inductors and transistors. Next time I'll add a transformer and some toroids.
#QMX #hamradio

[F8EXM - KZ4CQ @F8EXM]

@F4JSU @JeanHenaffSA Et il y a une boutique à Concarneau 👍