How to Make a $19 Police Scanner

Overview

In this guide I will explain how to build an inexpensive SDR (software defined radio) that can be used to receive police, fire, taxi, and other digital radio transmissions. I will do my best to explain the steps in detail, and provide further resources to help along the way.

I have to give a lot of credit to the creator of the following guide: http://public-xrp.s3.amazonaws.com/docs/