What is a feature of the UHF SATCOM Radio System?

The UHF SATCOM Radio System is specifically designed to facilitate communication that can operate both through line-of-sight and satellite connections. This dual capability allows greater flexibility in communication, especially across different environments and distances. Line-of-sight communication is effective for shorter ranges, while satellite communication enables long-range connections regardless of the user's position on the Earth's surface. This makes the UHF SATCOM extremely valuable for military operations and other scenarios where reliable communication is critical, even in remote or challenging terrains.

The other options do not accurately reflect the capabilities of the UHF SATCOM Radio System. For instance, being exclusively ground-based limits operational flexibility, and the system certainly supports two-way communications, contrary to the idea of one-way communications only. Furthermore, the effectiveness of the UHF SATCOM is not restricted to low altitudes, allowing for operation at various altitudes and conditions, ensuring versatile usage in various missions.