Technical blog

VHF / UHF antennas and design features

The theme of the workshop this Wednesday became VHF/UHF antennas and design features. Speaker: Denis Nechitailov,UR8US. We discussed the types of matching antennas, especially the propagation of radio waves in the VHF / UHF. Vertical and horizontal …

Velocity Factor

The topic of this Workshop was devoted to the Velocity Factor. We studied how this velocity factor varies depending on the frequency. The guide says that “the velocity factor for cable RG-58 is 0.66”. It turns out with …


Roman Bratchyk UT7UA about Antarctic expedition and RigExpert devices!

Finally, today our guest was a famous Ukrainian polar explorer – Roman Bratchyk UT7UA (aka EM1UA, EM1U, VP8CTR)! Roman brought us news from the Ukrainian Antarctic station Academician Vernadsky, told about the life of the XXIV expedition, …

RigExpert AA-1400 in Antarctic


August 2019
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