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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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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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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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The proposed antenna is useful for transportation in the trunk of a car in a collected form - dimensions: 1000 x 980 mm.

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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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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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