ETSI TR 103 233提供了移动平台上地面站天线性能的表征。信息技术 识别此类系统中使用的技术和天线类型，这些系统可能没有相同的性能 为VSAT制定现有ETSI标准时考虑的特征。移动平台上使用的天线通常较小，并且具有可能具有可变对称性的辐射模式 和/或朝向卫星的可变地理倾斜角度。这些类型的天线通常用于低剖面 天线或其他特殊应用。它们的辐射模式可能与ETSI不一致 离轴EIRP密度掩模。

ETSI TR 103 233 provides a characterization of antenna performances for earth stations on mobile platforms. It identifies the technologies and antenna types used in such systems, which may not have the same performance characteristics considered when developing the existing ETSI standards for VSATs.Antennas used on mobile platforms are typically smaller and have radiation patterns that may have variable symmetry and/or variable geographic skew angles toward the satellite. These types of antennas are typically used in low profile antennas or other special applications. Their radiating patterns may show non-conformances with regard to the ETSI off-axis EIRP density mask.