However, being so distant, GEOs have a problem of transmission delay on delivering interactive services. The terminals must be very powerful and expensive, also, ground antennas are very large.

• 然而；由于同步卫星距离地表太遥远；因此在传送互动式服务时；会发生传输延迟的问题.；而且；接收站必须是很高效能且昂贵的；同时地面的天线也要很宽大