On the weekend before last in the summer cottage, I unfolded (and turned) the antenna for the ranges of 7 and 14 MHz. But for the range of 3.5 MHz, the antenna is currently not. This article considers the antenna for the range of short waves 3.5 MHz.

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On Sunday, I decided to install and test an antenna of the End Fed antenna for two ranges: 7 and 14 MHz. This is what came of it ...

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Yesterday, while walking in the area of the Voronya and Orekhovaya mountains, I met a radio amateur I knew who was renting a summer cottage there with his family. I promised to tell him about the W3EDP HF antenna.

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I tried to create a short Russian instruction manual for the Retekess V115 receiver.

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The receiver Retekess V115 (also known as Tivdio V115 and Kaimeda SRW-710S Mini and Audiomax SRW-710S and VR robot WC-710S and HanRongDa K-603) version F9205A came into my hands when I ordered it on AliExpress to replace the lost Tecsun PL-310ET. We needed a compact and inexpensive all-wave CB-HF-VHF-FM receiver with direct frequency input and good sound.

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Saturday May 14, 2022 was warm, sunny and dry with no wind. To test the receiver in conditions close to ideal, I went in the evening to the Pulkovo Heights (75 meters above sea level).

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In the morning I turned on the transceiver - on 18 MHz there were many stations from the Russian Far East and Japan.

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Frequencies in Russia are assigned by SCRF - State Commission on Radio Frequencies.
The first document is a general table of frequency allocations and the second is a current decision for the amateur radio service, which specifies the table for specific frequency bands and modes of radiation.

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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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All hams know about the popular, fast, long-range and cost-effective FT-8 digital mode developed by Joe Taylor K1JT. I work on air in FT8 using the WSJT program under Linux Debian 10 (buster). Installing and configuring WSJTX under Debian Linux is simple and takes a few minutes.

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