One of the goals of VHF radio amateurs is to cross the Atlantic. While this is a routine matter on most HF bands, on VHF it is only possible with the use of EME communication or satellite.
For this purpose, a group of radio amateurs built an experimental station VC1T in Pouch Cove (a city in the Canadian province of Newfoundland and Labrador, which is closest to the shores of Europe). Indeed, their goal was achieved on July 6, 2014, when their signal was picked up by John, G4SWX, at a distance of 3840 kilometers. However, the investigation revealed that it was probably also a reflection in this case, namely from the international space station ISS.
So the VC1T team decided to go ahead and try to connect using the classic propagation method. For this purpose, they decided on construction cable yagi antennas on 144 MHz. Anténa má 66 metrov, ale nosné lanká a 41 direktorov majú hmotnosť len 0,73 kilogramu. Hmotnosť je pri cable yagi dôležitým faktorom pretože vyššia hmotnosť si vyžaduje väčšiu napínaciu silu.
In the article http://www.arrl.org/files/file/Antenna%20Book%20Supplemental%20Files/23rd%20Edition/Archibald%20VE1FA%20-%20Ultra%20Light%20Yagi%20-%20March%202016%20TCA.pdf Fred, VE1FA, describes the technical details. So you can notice that they used 2.38mm thick Kevlar wire. Each director is fixed with four black tightening tapes and then fixed with PU varnish. The method of tensioning with a double pulley system is also interesting. The antenna should have gain 26.0 dBi at a radiation angle of 4.5°.
This type of construction of yagi antennas is not exceptional. An example can be 43-element yagi VE7BQH or cable yagi OK1FIG. EME enthusiasts are also experimenting with these antennas. Will you try such a yagi too?