F8EXM - KZ4CQ

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

[F4JSU @F4JSU]

Not only CW and hamradio, in life.

Doing > perfect idea.

"Better an imperfect dome in Florence than cathedrals in the clouds."
- Leon Battista Alberti

[Okular AB @okularab]

@F4JSU @N4JAW is a role model ham for all of us.

[Paulo Jorge @F5VMJ]

More code crunching tonight. More bugs, more options, more cosmetics. But a useable version for initial testing. Satellite pointing data added for any geo satellite …position defined in options. Now sporting a bobby-dazzler wrist strap. #q0100 #hamradio #GridHopper #amsat

[Jim "Ham on a Bike" @N4JAW]

The QUEST for PERFECT #AmateurRadio #HamRadio #MorseCode sending.
Don’t Worry… You’re Doing Fine. We've All been There!
A June 3, 2026 message from Mr. #QRPer #K4SWL Thomas Witherspoon
https://t.co/WJk7a8Lo1L

[F8EXM - KZ4CQ @F8EXM]

I'll be 50 in 3 months, my gift from me to myself has just arrived 🥃🏴󠁧󠁢󠁳󠁣󠁴󠁿 @Laphroaig 🤩
My other gift is the second-hand Yaesu FTDX-5000MP 📻 I bought two years ago 🤭 #hamradio

[Paulo Jorge @F5VMJ]

Grrrr…. spent all day ‘dancing the fandango’ with Android Studio to get a barebones GridHopper wearable app going. First version. Shows current gridsquare and nearest border direction/distance. Alerts on crossing gridline. A lighter alternative to my https://t.co/5sxnBlQK5u Runs autonomously without needing an Internet connection. Installs on Ware OS smart watches. Testing now with a secondhand Galaxy Watch4 as the main mover. Very cheap hardware. GPS works often indoors …impressive. Yet, a fraction of the cost of some big-boy timepieces. Also no need for Developer/PlayStore/AppStore bureaucracies. #GridHopperTac #qo100 #amateurradio #hamradio #GridHopper #amsat

[F8EXM - KZ4CQ @F8EXM]

@F4JSU Too bad, it would be fine with a sardine 🐟🙃

[F8EXM - KZ4CQ @F8EXM]

#HAMRADIO2026 📻 The list of exhibitors is online 😍 https://t.co/LcDutBRRXd

[ElectronicsNotes by Ian Poole @ElecNotes]

Check out the full story on my website: https://t.co/MQYy5BJroH

[ElectronicsNotes by Ian Poole @ElecNotes]

Don't Fear the Repair: A Systematic Guide to Fixing Gadgets and Radios

We’ve all been there: you pick up a beloved piece of kit—a vintage radio or a reliable gadget—and it suddenly refuses to work. The instinct is often to assume the worst, like a blown processor or a dead circuit board.

But here is the golden rule of electronics: Check the obvious first.

In my experience, roughly 75% of "broken" electronics aren't dead; they are just suffering from simple, mechanical, or environmental issues that anyone can fix with a bit of patience.

Before you consider sending a device to the landfill, take a moment to look for these common "easy wins":
* Leaked Batteries: Alkaline battery corrosion is a classic. A quick clean with a soft brush and a touch of dilute lemon juice to neutralize the residue can often bring a device back to life instantly.
* Dirty Contacts & Switches: Oxidation is the enemy of reliability. Whether it’s a scratchy volume pot or a rotary switch in an old radio, a little switch cleaner or even a gentle pass with some paper can restore a solid connection.
* Loose Connections: Dropped a device? A loose speaker wire or a detached battery terminal is a common culprit. A simple soldering touch-up is often all that’s needed.
* Power Supply Issues: Don't blame the device until you’ve verified the power! Check your leads and adapters first—it’s amazing how many "broken" units are just victims of a frayed cable.

Repairing gadgets isn't just about saving money; it’s about reclaiming control, reducing waste, and understanding the technology we use every day. Don't let the fear of complex circuits stop you from troubleshooting the basics.

Want to sharpen your fault-finding skills? I’ve put together a systematic guide to help you work through the most likely faults, saving you time and frustration.

👉 Read the full guide in the linking the comments.

What’s the most satisfying repair you’ve ever completed? Share your "easy fix" wins in the comments! 👇

#ElectronicsRepair #DIY #HardwareEngineering #FaultFinding #VintageElectronics #Sustainability

[Jim "Ham on a Bike" @N4JAW]

Nice to see Mr. #QRPer Thomas #K4SWL become a #HamOnaBike My First Brompton Bicycle #POTA Activation! #AmateurRadio #HamRadio #parksontheair https://t.co/33lIdiz4Bt via @YouTube

[ARISS - Amateur Radio on the ISS @ARISS_Intl]

Contact upcoming with France!

Sophie Adenot will make a unique ham radio contact with two groups in France live from the ISS.

Scheduled Fri. 05.June at 09:26 UTC | 5:26 AM ET | 11:26 AM CEST direct via F6KMF & F6KJS.

Listen on 145.800 MHz and watch here for live stream info.

[Jim "Ham on a Bike" @N4JAW]

Failed attempt for #QSO Number 10,000 at US-7956. Sometimes #AmateurRadio #HamRadio #parksontheair #POTA activations can be like a box of "Forrest Gump's" CHOCOLATES.

[World of Engineering @engineers_feed]

All languages travel at the speed of sound, except sign language that travels at the speed of light.

[Adenot Sophie @Soph_astro]

Jour 107, orbite 1658 – On me demande souvent quels sont mes loisirs dans l’espace… Eh bien, l’un d’eux consiste à imaginer des expériences scientifiques ludiques les dimanches matins. Cela m’amuse beaucoup – et c’est en réalité plus difficile qu’on pourrait le croire… J’adore le fait que cela demande une bonne dose de créativité !
Vous vous en doutez sûrement, tout ne se passe pas toujours comme prévu… 😂

🎥 @esa / @NASA

#εpsilon • @esaspaceflight • @esa_fr • @cnes • @space_station • @nasajohnson

[Jim "Ham on a Bike" @N4JAW]

On pace to make my 10,000th #hamradio #amateurradio #pota #parksontheair #QSO today from US-7956 @POTAspots

[F8EXM - KZ4CQ @F8EXM]

Première récolte de pommes de terre 🥔 de l'année, ça sera parfait avec un peu de beurre et des lardons 🥓 🤤

[F4ANS - Aurélien @f4ans_f15115]

🥰Une bonne matinée d'échange avec 3 classes CM1/2 (~75 élèves) à #Cergy, sur la #decouverte de la #radio et #radioamateur.
Il fallait quand même arriver à maintenir leur concentration avec cette chaleur 🌡️.
TP #SSTV, #VHF.
#hamradio #PassageDeConnaissance #science @villedecergy

[F5LEN - Pascal 🇺🇦 @f5len]

🌍 Please to announce the new version of my worldwide VHF tropospheric propagation forecast tool is live at https://t.co/4KrZnSvfHU
smoother map, ◀▶ navigation between forecast steps, and smart GeoTIFF preloading for near-instant browsing.
Feedback welcome! #hamr#VHF #tropo

[F8EXM - KZ4CQ @F8EXM]

@f4ans_f15115 Merci beaucoup pour les infos Aurélien 👍 J'ai tout ce qu'il faut pour faire la version Quansheng 😂