I'm trying to null out vertical signals from a particular suburb which is about 40 kms away from my location by pointing a 4 element 10 m yagi such that the direction i want to null out is off to the side at about 90 deg to the direction of maximum gain.
The polarization of signals from the direction of the yagi's maximum gain isn't important because i'm interested in long distance via skip and then the polarization is always changing.
Will the yagi provide the best side rejection for the vertical signals coming from the offending suburb if I mount it vertically or horizontally ?
Keeping in mind that in theory a yagi has little or no gain in the plane it isn't positioned in.
To re-phrase, what provides more side rejection to vertically polarized received signals :
a. The cross polarization attenuation provided by a horizontal yagi coupled with the minimal gain in the vertical plane and the associated minimal nulls in the vertical plane it has which can be used to null out vertical signals from some directions.
b. The fact that a vertical yagi has gain in the vertical plane and so then has definite nulls in the pattern which can be used to null out vertical signals from some directions.
When using a 4-element Yagi antenna, is there any other way I can best reject signals coming from a particular direction ?