What is the maximum transmission range of the AN/PRC-117F radio set via UHF SATCOM?

The maximum transmission range of the AN/PRC-117F radio set via UHF SATCOM is indeed significantly influenced by the nature of satellite communication systems. UHF SATCOM operates using satellites placed in geostationary orbits, which can be located approximately 22,300 miles above the Earth's surface. This orbital range enables UHF SATCOM systems to provide communication over vast distances, essentially covering entire continents or regions without the same limitations as terrestrial communication systems.

In contrast, other answers, such as suggestions of 10 miles, 30 miles, or even indefinite, do not accurately reflect the operational capabilities of UHF SATCOM. Communication is contingent upon satellite positioning and availability, thus enabling transmission over thousands of miles with just one hop, as opposed to the much smaller ranges of line-of-sight or terrestrial radio systems. Therefore, the answer reflects a correct understanding of how satellite communications extend the possible range for radio sets like the AN/PRC-117F.