Since this is an introductory project, I will be using a low-cost dongle, the R820T2, which is linked in the requirements list below.
There are many manifestations of the SDR and models that you can buy on the market. This allows for more freedom in RF communication systems: Changing what your radio does becomes a matter of editing code instead of modifying hardware.Ī software defined radio (hereafter referred to as SDR) must have a data converter (ADC for receive, DAC for transmit) and a processor that can run the necessary software.
Software defined radio is a type of RF system that utilizes software to perform tasks traditionally performed by hardware, such as generating or decoding baseband signals. Please comment or email the author if you'd like a follow-up post for Linux or Mac operating systems. Unfortunately, since this a software-intensive task, it may be a very different experience on a different OS. Heads up before we get started: This tutorial is focused on the Windows operating system. This is intended only for educational purposes and should not be used in any other activities. These frequencies are more dependent on your area-including highway departments, fire districts, and police dispatch. The second part of this project is a little more involved, but in the end we will be able to decrypt common live radio chatter. This will allow us to get acquainted with the software and get through the setup of the software-defined radio (SDR). First, we’ll listen to FM radio stations: stations that you can get from tuning your car radio, for example.
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