Admin note: VPR-02/2006 prohibits the use of any external antenna in the PMR band. The article is only informative. In this second order…
HB9CV
The legendary directional antenna with two active elements fed with phase shift bears the mark of its creator, HB9CV. The antenna has an excellent F/B ratio and a large gain with a relatively undemanding construction.
Good antennas It is difficult for a beginner radio amateur to find his way around different antenna designs. Antenna books and the internet are full of all kinds of constructions.…
Many radio amateurs consider a 7MHz directional antenna to be a difficult target, requiring a tall antenna mast and a lot of duralumin. If…
In 1991 we (OK3YEC and OK3CAV) played around with the very famous HB9CV antenna and wanted to talk it into…