Which statement about Iridium satellites is true?

Get ready for the FCC General Radiotelephone Operator License (GROL) exam. Study with flashcards and multiple choice questions, each with hints and detailed explanations. Prepare effectively for your licensing test!

The idea being tested is how Iridium satellites provide global coverage using multiple narrow ground beams. Each Iridium satellite is designed to project several focused beams toward the Earth, creating many ground footprints that can be switched between as the satellite moves. The statement that there are 48 spot beams per satellite with a footprint about 30 miles in diameter reflects this multi-beam approach: the satellite isn’t just a single broad beam, but a collection of narrower beams that collectively cover the ground in overlapping areas, enabling continuous communication as the constellation moves overhead or as different satellites come into view.

Understanding this helps you see why other numbers given for Iridium aren’t representative of its usual design. The system uses a constellation arranged to maintain near-global coverage, with multiple beams per satellite to ensure ground users are within a beam at all times, even as satellites orbit in their paths.