The article is devoted to setting up a web server, PDT in Eclipse, Composer and TWIG. Updated '2024!

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Приthere was a positive result for the SARS-Cov-2 test. I describe the symptoms day by day...

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The FT8 digital mode has gained incredible popularity and recognition around the world. Radio amateurs want to use it not only for long-distance DX QSOs on short waves, but also in competitions, including on ultra-short waves 144 and 432 MHz. The WSJT-X program provides an operating mode for European competitions using FT8 modulation.

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Most 6 -element antennas per range of 144 MHz suffer in one drawback - the length of their traverse is more than 2 meters.
But the square profile and pipes in the store have a length of 2 meters smoothly.
I calculated the compact (1.96m length) antenna for the range of 144-146 MHz, 1 meter 94 centimeters long, without the need to drink or increase the traverse.

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In recent days, when searching in Yandex, a floating window "- is this your account?
Not now
Enter ".
The window closes almost a third of the smartphone screen. Nowhere on the Internet I found a solution for how to remove it. Perhaps the problem is only for me. 😦 I give a solution to the problem.

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Last weekend he visited Mount Kirchhof.

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When the RAM runs out, the computer becomes very slow as it accesses the swap file on the hard drive. To solve this problem, the zswap module was invented. By default, it is disabled in the Linux operating system, but you can enable it.

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For diagnostic purposes, I have boot-time messages enabled in /etc/default/grub (line GRUB_CMDLINE_LINUX=""
).
When starting a computer running Linux Mint 19.2, errors like FAILED Failed to start AppArmor are visible. The problem started after reinstalling the MySQL service to manage relational databases. The solution to the "Failed to start AppArmor" problem is given below...

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Due to the accessibility of the balcony at my place of stay, I decided to install the Ground Plane antenna on all amateur bands 7-28 MHz, and, if I can tune it, then on 3.6 MHz. The design from the article was taken as a basis http://www.dk3red.homepage.t-online.de/de/s15_01.htm. The antenna is a fishing rod with wire wound around it, a tuner at the base, grounded on the railing or glazing frame of the balcony.

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