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description=Jean-Paul Mansouri s website, F4HXN: web projects, Apache servers, Django applications, amateur radio and development assisted by Claude Code.;
author=Jean-Paul Mansouri — F4HXN;
keywords=Jean-Paul Mansouri, F4HXN, Apache, Django, Claude Code, web development, Linux servers, amateur radio;

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Text of the page (random words):
jean paul mansouri f4hxn servers web development f4hxn blog jean paul mansouri amateur radio operator fr en it female male help home django lab security why ai assisted attacks change the game trilingual translator and voice reader the new bonus section a permanent work in progress why this site keeps changing setting up the site s translations with django i18n article text to speech with piper django jerko fr explained on f4hxn fr behind the scenes seo optimization accessibility listening help security blog live radio propagation interactive hf propagation wspr reports dx cluster aprs map iss live sstv pictures by radio moon distance radio calculators dipole calculator wavelength frequency doppler friis formula ohm s law rc high pass filter rc low pass filter magnetic toroid ground plane tx current par pire gain and power resistors practical tools locator search qra gps coordinates morse generator morse clock number base converter bytes converter unit converter rtty baudot sstv pictures by radio resources wordpress extensions bonus voice translator curiosity machine ham radio quiz riddles password generator live dashboard categories bonus calculateurs divers informatique laboratoire django plugin wordpress radio site map f4hxn 2026 django lab a web and ham radio experimentation platform deployed in real production at django jerko fr django projects ham radio tools and live data listen to this page django lab architecture behind the scenes and api live radio propagation wspr dx cluster aprs radio calculators dipole doppler friis ohm filters locator dx cluster aprs dipole calculator latest articles see all articles antenna polarisation linear or circular misalignment loss and faraday rotation 30 09 2026 radio two perfect well tuned antennas can still hear each other poorly it only takes one being vertical and the other horizontal polarisation the orientation of tuning an hf antenna sizing a dipole or a vertical and bringing the swr down 29 09 2026 radio a properly cut antenna radiates almost all of the transmitter s power a badly cut one sends part of it back the difference is often getting started with shortwave listening swl legality gear and sinpo reports 29 09 2026 radio no callsign or exam is needed to listen to the world a receiver a length of wire strung outside and a bit of method how ham radio repeaters work operation access codes and digital modes 21 09 2026 radio a ham radio repeater receives a signal on one frequency and instantly retransmits it on another letting mobile and handheld stations reach far beyond security why ai assisted attacks change the game 20 09 2026 django lab attack tools evolve just as fast as defense tools artificial intelligence doesn t invent new vulnerabilities but it speeds up every step that used to trilingual translator and voice reader the new bonus section 20 09 2026 django lab the bonus section has just welcomed its first tool a trilingual translator and voice reader built to quickly switch a text between french english see all articles how this site works how a page on django jerko fr travels from your browser to the database and back your browser internet every page is requested over https encrypted end to end between you and the site encrypted entry point https reverse proxy terminates https encryption and filters traffic before it reaches the server public web server apache serves static files images styles and forwards dynamic pages to the application server application server gunicorn only listens on the local machine never exposed directly to the internet application logic django generates pages handles translations and the site s tools live data radio api dx cluster aprs ionospheric propagation fetched and republished in real time the site s memory database articles visits and radio history stored and queried on every request why this architecture https and traffic filtering right at the reverse proxy before reaching the server apache serves static files and forwards dynamic pages gunicorn is never exposed directly to the internet local only django centralizes the site s pages tools and apis the application server can be reloaded on the fly with no downtime for visitors export this page as pdf django jerko fr amateur radio radio tools and f4hxn s django lab trilingual and readable aloud fr en it find your way site map listening help accessibility search get in touch contact comments about my sites legal information legal notice terms of use cookie policy content licence 2026 f4hxn fr jean paul mansouri content free of rights back to top