Boeing 747-8 System Practice Exam

The ISFD receives ILS or GLS approach data from which source?

The left approach receiver The right approach receiver GPS receiver ISFD generates approach data itself

Correct Answer:

The left approach receiver

Explanation:

Approach data for the ISFD comes from the left approach receiver. This channel decodes the localizer and glideslope signals (and handles GLS data when applicable) and supplies the ISFD with the approach course, deviation, and glide-path information it needs to display approach cues. The right approach receiver acts as a backup or serves other systems, but the ISFD’s primary source for ILS/GLS data is the left receiver. The ISFD does not generate this data itself; it relies on the approach receiver network for the information.

Access more questions from this quiz

Continue to Boeing 747-8 System Practice Exam for more practice questions and the full quiz experience.

Access More Questions