What is the primary purpose of modulation in communication systems?
Practice Questions
1 question
Q1
What is the primary purpose of modulation in communication systems?
To increase the bandwidth of the signal
To reduce noise in the signal
To allow the transmission of signals over long distances
To convert digital signals to analog signals
Modulation allows signals to be transmitted over long distances by shifting the frequency of the signal to a higher range, making it suitable for transmission through various media.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the primary purpose of modulation in communication systems?
Solution: Modulation allows signals to be transmitted over long distances by shifting the frequency of the signal to a higher range, making it suitable for transmission through various media.
Steps: 7
Step 1: Understand that communication systems need to send information from one place to another.
Step 2: Realize that information can be in the form of sound, video, or data.
Step 3: Know that signals can be weak and may not travel far without help.
Step 4: Learn that modulation is a technique used to improve the transmission of these signals.
Step 5: Understand that modulation changes the frequency of the signal to a higher range.
Step 6: Recognize that higher frequency signals can travel longer distances and through different materials (like air or cables).
Step 7: Conclude that the primary purpose of modulation is to make signals suitable for long-distance transmission.
