58. What is omni-directional antenna?
A、Anantennawhichiscapableofline-of-sightcommunicationwithasatellitewithoutrequiringanypointing.
B、GenerallyitisusedonanInmarsat-BMES.
C、GenerallyitisusedonanInmarsat-FMES.
D、Thisisakindofdirectionalantenna.
发布时间：2025-07-28 05:32:28
