# Frequency division multiplexing FM Radio stations

Can someone help me with this I'm confused on what it is supposed to look like?

• What's the source of your confusion? The problem seems very clear. This is an example of band management. They tell you how wide each channel is and how much spacing there is between those channels. Nov 9, 2021 at 10:18
• That doesn't even look specific to multiplexing. It's just how you space out signals so they don't interfere with each other. Nov 9, 2021 at 13:58
• How do I calculate the channel spacing and what is the graph suppose to look like?
– Dan
Nov 9, 2021 at 15:29
• Do I draw from the 96.3 or 96.5?
– Dan
Nov 9, 2021 at 15:29
• Hi Dan, and welcome to ham.stackexchange.com! Nov 9, 2021 at 20:40

Welcome to the site and welcome to radio!

A 150kHz channel that is "Centered at 96.5 MHz" means that channel will have 150kHz / 2 = 75kHz below 96.5 AND 75kHz above 96.5 MHz.

50kHz guard band between means that there will be at least 50kHz of space between the top-end of one channel and the bottom-end of the next channel so that they don't interfere.

96.3           96.5            96.7
|--------|-------|-------|-------|
(75k | 75k)
(  150k   )


Looks like may be for a class, happy learning!