If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Course: High school physics - NGSS > Unit 7

Lesson 2: Technology and waves
Science
High school physics - NGSS
Information technologies
Technology and waves
© 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Understand: technology and waves

Google Classroom

Problem

Radio stations that broadcast frequency-modulated, or FM, signals each use a specific frequency range. Radio stations start with a radio wave toward the middle of this range and then the frequency of each wave is modulated (changed). The radio waves are broadcasted (sent) to radio receivers that use the changes in frequency as a guide to produce sound waves.
What is the purpose of the wave modulation process?
Choose 1 answer: