Beam DX je malý voľne šíriteľný program od Gabriela F6DQM na rýchle určenie azimutu, prípadne automatického natočenia antény na zvolenú…
antenna
W3DZZ, G5RV, DK7ZB, G0KSC, DG7YBN,… what do these marks mean? They are KV and VHF antenna designs. The antenna is a decisive factor in reception and transmission, which significantly affects the result. Other types of antennas include quad, parabolic antennas, quagi, K9AY, beverage, slooper, etc. The advantages and disadvantages of each type of antenna can be discussed for a long time.
Compared to other types of directional antennas on VHF, quads are relatively difficult to establish on 2m. The reason? Much more wind resistance, which…
Tibor OM5NU informed us that the 4th edition of the "bible of operation on the lower bands" - Low Band DXing by John Devolder was published,...
Fellow experts, I need your help. Would anyone be able to construct a simple Yagi 3-element antenna for a frequency of 173 MHz (approx. 150 to...
World-renowned aerialist Gordon "Dick" Bird G4ZU/F6IDC has left us forever at the age of 86. Already in the fifties of the last century...
While searching for the optimal antenna for 23 cm, we decided to try a smaller parabola with f/D 0.4. The advantage is in the simple construction...
The author of this very successful project is Mak, SV1BSX (https://www.qsl.net/sv1bsx/). About actuators Behind this not very common word is a device,...
Milan OM3TBG forwarded for viewing a beautiful Hexbeam on the 40m band, which he built in his QTH Mýte pod Ďumbierom Jano OM3UU...
The following description of the handy panel radio amateur antenna is written by Ivan HB9CSM/OM2CS. It was published in French in the HB9 magazine Old Man…
Anténny analyzátor je pre rádioamatérov, ktorý preferujú doma vyrobené antény výborným pomocníkom. Umožňuje „nahliadnuť“ do vlastností antény tým, že zobrazuje…
The antenna is used by Mak SV1BSX on the satellite uplink (originally mainly for AO-40). It is characterized by acceptable dimensions (boom length 1.5 meters), simple…
I would like to draw your attention to a few photos with a mobile antenna on the 80 m band. The reason was to try whether it is also possible to…
WIFI, wi-fi, microwave oven, wireless internet are synonyms for the transmission of data (internet) through the ether at relatively high frequencies. The advantage is mobility in particular...
One of the biggest ailments of satellite communication is the strong leakage of signals caused by the rotation of the satellite during reception by a linearly polarized antenna (vertical or...
When interference appears on the band, the causes can be different. But maybe you just "grew" something on the bottom of the antenna......
The beverage antenna as a special receiving antenna has the disadvantage of lower gain, so subjectively the signals weaken when switching...
Would you like an antenna analyzer and don't have ten thousand to buy it? You have clever hands and a desire to make something useful...
Peter 5X4X will probably be a QRV until June 2009. He works in technical assistance (German Development Service) and time to…