sq9oub pisze:

Jacek X nie ma plusów w porównaniu z + wręcz przeciwnie.

EI3HMB pisze:

No wiec mamy tu sytuacje w ktorej 'zdania uczonych sa podzielone' oraz 'rozne zrodla roznie podaja'...

Osobiscie nie preferuje (jeszcze) zadnego z tych rozwiazan + vs x, ale chetnie poznam zdanie odmienne
Jakies zrodla, albo zwiezly opisik?

na swojej stronie sm5bsz pisze:


The "+" configuration vs the "x" configuration

A cross yagi system may be mounted with any orientation of the elements. It can still be used to produce any desired polarisation. The usual configuration is the "+" with one horizontal part and a vertical. There are good arguments to prefer the "x" configuration with the elements in +45 and -45 degrees angle. It seems like most amateurs believe the "x" configuration is much more complicated, but that is not true at all.
On this page you can look at the connection diagrams for simple switch systems for both configurations.

The advantages of using the "x" configuration are:

1. High gain yagi antennas are sensitive to water. A horizontal antenna easily gets water droplets hanging all along the elements, causing the element diameter to increase which detunes the antenna. Losses are also increased. This is no problem for a vertical yagi, on which there will be only one droplet hanging at the end. Antennas in the "x" configuration are also insensitive to rain like a vertical one.
(...)

sq9oub pisze:

Glowny powod 'za X' to mozliwosc zastosowania metalowego boomu poprzecznie do anteny to odpada gdyż tak nie jest. Będzie oddziałowywał.