Ionospheric delay affects GPS signals by:

Speeding them up

Having no effect

Slowing them down, causing the calculated range to be too long

Correct

Causing the signal frequency to change permanently

Explanation

The ionosphere delays GPS signals, making the calculated pseudo-range longer than actual. Dual-frequency receivers can correct this; single-frequency receivers use models.

← Previous Next →

Ready for a timed quiz?

Test yourself with random questions from Radio Navigation and all other ATPL subjects.

Start a Practice Quiz