I offer translation of documentation in Russian for the WSJTX_improved program.

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The article lists the days of FT8/FT4/JT65 activity on on very high frequencies (VHF), in the bands 144, 432 and 1296 MHz.

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I am sharing a very simple way to repair a magnetic base.

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I received an email asking me how to generate a sound signal for a beacon in PI4 mode.
In the article I talk about how I managed to do it without using third-party hardware, only using Linux software capabilities.

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Radiomobile - a program for calculating the level of the signal on the VHF between the points on the map written by the Roger Coudé radio amateur with the callsigns of VE2DBE. I propose a brief introduction to its installation and use in Linux OS.

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In amateur VHF antenna designs, a split half-wave vibrator is often used. The manufacture of the power supply raises questions.

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At work I was given a “new” ADSL router. Among the useful things in it are a 19-volt power supply and antennas.
I disassembled the antenna (the router is stated as dual-band 2.4 and 5 GHz) to look at the design...

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On September 11, a strong tropospheric passage ("duct") in the VHF bands occurred in the St. Petersburg area. The passage of VHF is associated with weather favorable for the propagation of radio waves and tropospheric inversion.

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НесHow many years ago I made 2 small antennas with a range of 70 centimeters, with a number of elements of 5 and 7. An attempt to establish radio communications over a distance of 35 kilometers showed that an antenna of 7 elements was not enough for reliable communication.

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A radio amateur I know called and warned me about the August meteor shower.Perseids, which peaks on the night of August 12-13. In which you need to work on 144.360 MHz digital mode of communication MSK144 in the MSHV program.

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