ISO/TC 211 Multi-Lingual Glossary of Terms (MLGT)

Note to entry: Spillover factor is written as ${\displaystyle 1-{\Lambda }_{”}p”}$ and can be measured in the field, where ${\displaystyle {\Lambda }_{”}p”}$ is the ratio of antenna pattern within the Earth to all space of ${\displaystyle 4\pi }$ . ${\displaystyle {\Lambda }_{\text{p}}={\int }_{\text{Z}}^{}d\Omega (F_{n,\text{PP}}+F_{n,\text{PQ}})}$ where ${\displaystyle F_{n,\text{PP}}}$ is the co-polarization antenna pattern; ${\displaystyle F_{n,\text{PQ}}}$ is the cross-polarization antenna pattern; ${\displaystyle d\Omega }$ is the differential solid angle; ${\displaystyle Z}$ is the Earth.