F5LEN - Pascal 🇺🇦

Ham radio enthusiast since 1986.
I knew short waves before the iron curtain came down.
The shortest distance between two points depends on the propagation.

[F5LEN - Pascal 🇺🇦 @f5len]

Bah non.
😭

[F5LEN - Pascal 🇺🇦 @f5len]

GE from JN38 square.

[G7JTT @G7Jtt]

That was a bit blooming close ! Just had quite a violent thunderstorm over Lincoln 😳

[🅿️🅰️9️⃣❌ @PA9X]

I recently moved from an urban to a rural QTH. The expectations concerning manmade noise are high. This is how it turned out. #hamradio
https://t.co/32sYnR1KRH

[F5LEN - Pascal 🇺🇦 @f5len]

@pjournel Pas de bol.
Sur 7033 j'entends un italien.
Sur 7013 un EA
;-)

[Tom Patterson @MtnMapper]

I am pleased to announce that the Equal Earth world map is now available in Macedonian, thanks to Daniel Evrosimoski, plus 18 other languages. You can download them for free here: https://t.co/mCHI9I8NBQ

[Kévin Leclercq ⚡ @EatMyStorm]

Chasse assez incroyable en Belgique hier entre la Haute-Fagne le matin (l'arcus) et la région de Charleroi ou de nombreuses et virulentes cellules orageuses se sont succédés pendant des heures !

#orage #belgique #meteo

[F5LEN - Pascal 🇺🇦 @f5len]

@okularab @F4JSU The N index is calculated for four heights in the lowest layers.
A weighting is then applied, which also gives an indication of the gradient.

[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

[F5LEN - Pascal 🇺🇦 @f5len]

@okularab @F4JSU Average index N is derivated from this paper: https://t.co/VxK18plgkR

[BG0AUB @ZhaoFen37759626]

Nightmare😭

[F5LEN - Pascal 🇺🇦 @f5len]

@SoggyTiri @ok1cdj You are right.
I think there is a way, but it would mean doing twice the calculations.

[F5LEN - Pascal 🇺🇦 @f5len]

@f4cwn Tnx !

[𝗣𝗘𝟭𝗥𝗗𝗣 @PE1RDP]

This was "measured" with a 10 dollar AliExpress EMF meter on a roof. Over 1900V/m.
The real measured value with a calibrated Narda was less than 2V/m.

#hamradio #hamr #AmateurRadio #antenna #EMF #cheap #calibration #measurement #EMF

[F4MAJ ⬅️ JB - Les F4 📡🎙 @F4MAJ_]

📢Je recherche un Kenwood TR-851E 70 cm, même en mauvais état ou pour pièces !
L’état général de l’appareil n’a pas vraiment d’importance :
il faut surtout une **façade fonctionnelle**.
Le reste peut être HS, incomplet ou en panne.
Merci d’avance pour vos retours.

[Andrea Borgnino IW0HK @aborgnino]

CHU Canada's National Research Council has announced that the time station CHU will cease its standard time and frequency transmissions on June 22.
CHU operates on 3330, 7850 and 14670 kHz. @kaedotcom
@UlisK3LU @shortwave78

[F5LEN - Pascal 🇺🇦 @f5len]

@pjournel Oui car je ne pense pas que rbn interroge en temps réel les apis de https://t.co/y6gBl1ScoE.
Sans doute un système de cache ou bdd locale à rbn.
Maintenant combien de temps?
Comme le fut du canon.

[F5LEN - Pascal 🇺🇦 @f5len]

@f1ulq @fnrasec @fr_emcom @Prefet57 @SecCivileFrance @Prefet67 Merci camarade !