Let's say the poopy has hit the fan, and you're now living in a post-collapse society. Every man is for himself, and there is no resupply. You already know that information is key to survival, and a large part of that information is gathering as much news on your region as possible. That's why you've been using your scanner.

Thankfully, Sherlock Holmes is living with you.

The only problem is that something has happened to Sherlock's ears, making it so that he can't hear a thing. He still wants to help you out at your house, though. He sits in front of a scanner watching for when a radio frequency pops up on the display, telling you what he thinks he can deduce from nothing more than the frequency alone.

Here is some of what he may find…

What can you deduce if you pick up an FRS/GMRS frequency? 

There are a number of frequencies that fall within the FRS part of the radio spectrum. Those frequencies are listed below:

Image from Wikimedia Commons.

If you are listening to your scanner (and you should have one) and you hear one of these frequencies, there are a few things that you can deduce with a relatively high degree of certainty.