(Русский) За радио горизонтом

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(Русский) Проектирование антенн

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(Русский) HAM Fest Suvid 2018 Open season

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HAM Fest Suvid

05/11/2018 opening the season!
As always, the event will occur in the vicinity of the village. Suvid, communication 145.450 MHz, and also R99.

(Русский) Работа с фидерами и разъемами.

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(Русский) Изоляторы УКВ антенн.

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Calibrate tuner LDG AT-11MP

We present you a film about the tuning of the node of the meter of the forward and reverse power in the tuner LDG AT-11MP.
The tuner is provided by UT3UIQ.
The second half of the film is dedicated to radio amateurs for general development and understanding of the losses in the transformation in the tuner.

Measuring Performance of amateur radio transceivers

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Antenna 431,5MHz to work through repeaters

Hello!
There was a task to develop a compact antenna with a boom length of no more than 2 meters, in the range of 70cm to work through the repeater spacing in frequency -7.6 MHz.
Terms on the line between reporter and repeater 70km and overlap on the terrain.

path
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Spectrum of FM signal’s

ly3vb