For removal of the characteristic of an orientation the studied antenna is turned on some corner and fix indications of the related device. Operation is repeated until the studied antenna is not turned on 36 According to the obtained data build DN of the studied antenna.
to remove DN of the director antenna in the plane E; to perform measurements within 0-360 through 5 (it is necessary to consider that indications of the VK7-27 indicator correspond to a square of intensity of a field, i.e. the power accepted by the antenna);
In case the characteristic of an orientation has narrow main (<2 and small lateral petals, such characteristic with a sufficient accuracy it can be approximated by an ellipse. In this case KND of the antenna can be expressed by a formula, convenient for calculation: